ADW: Marmosops fuscatus: INFORMATION

<!DOCTYPE html> <html xmlns:og="http://ogp.me/ns#" lang="en" xml:lang="en"> <head> <title>ADW: Marmosops fuscatus: INFORMATION</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="canonical" href="https://animaldiversity.org/accounts/Marmosops_fuscatus/" /> <script type="text/javascript" src="//code.jquery.com/jquery-3.6.0.min.js"></script> <script type="text/javascript" src="//code.jquery.com/jquery-migrate-3.3.2.min.js"></script> <script type="text/javascript" src="/static/js/compat.js"></script> <link rel="shortcut icon" href="https://animaldiversity.org/favicon.ico" /> <link href="//fonts.googleapis.com/css?family=Gentium+Book+Basic:400,400italic,700,700italic" rel="stylesheet" type="text/css" /> <link href="//fonts.googleapis.com/css?family=PT+Sans:400,700,400italic,700italic" rel="stylesheet" type="text/css" /> <link rel="stylesheet" type="text/css" href="/static/bootstrap/css/bootstrap.css" /> <link rel="stylesheet" href="/static/css/pica.styles.css" /> <link rel="stylesheet" href="/static/css/pica.print.css" media="print" />  <link rel="stylesheet" type="text/css" href="/static/colorbox/colorbox.css" /> <meta property="og:url" content="https://animaldiversity.org/accounts/Marmosops_fuscatus/" /> <meta content="Marmosops fuscatus (gray-bellied slender mouse opossum)" property="og:title" /> <meta content="website" property="og:type" /> <meta content="Animal Diversity Web" property="og:site_name" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:site" content="@AnimalDiversity" /> <meta name="twitter:title" content="Marmosops fuscatus (gray-bellied slender mouse opossum)" /> <meta name="twitter:description" content="Read about Marmosops fuscatus (gray-bellied slender mouse opossum) on the Animal Diversity Web." /> <meta name="twitter:url" content="https://animaldiversity.org/accounts/Marmosops_fuscatus/" /> <script type="text/javascript" src="/static/js/Hyphenator.js"></script> <link rel="stylesheet" href="/static/social-likes/social-likes_birman.css" /> <style> .social-likes { margin: 0; } .social-likes__widget { margin: 0; } </style>   </head> <body> <div id="outerwrap"> <div id="header" aria-role="header"> <h1> <a id="homelink" href="/">Animal Diversity Web</a> </h1> <div class="umlinks"> <div class="relative"> <a href="https://lsa.umich.edu/ummz/" id="ummzlink">University of Michigan Museum of Zoology</a> <a href="https://www.umich.edu/" id="umlink">University of Michigan</a> </div> </div> </div> <div id="wrap" class="gradient"> <div class="container-fluid"> <div class="row-fluid"> <div class="span2 sidebar left"> <ul class="nav nav-tabs nav-stacked" id="sitemap"> <li> <a href="/">Home</a> </li> <li> <a href="/about/">About Us</a> </li> <li> <a href="/animal_names/">About Animal Names</a> </li> <li> <a href="/teach/">Educational Resources</a> </li> <li> <a href="/collections/">Special Collections</a> </li> <li> <a href="/glossary/">Glossary</a> </li> <li> <a href="/accounts/Animalia/">Browse Animalia</a> </li> </ul> <h2 class="offscreen">More Information</h2> <div class="well"> <h3>Additional Information</h3> <ul class="unstyled"> <li> <a href="http://eol.org/search/?q=Marmosops fuscatus&search=Go">Encyclopedia of Life</a> </li> </ul> </div> </div> <div class="span7_5 blahblahblah main" aria-role="main"> <h2 class="rank-species">Marmosops fuscatus<span class="vernacular-name">gray-bellied slender mouse opossum</span></h2> <div class="social-likes" data-counters="no"> <div class="facebook" title="Share link on Facebook">Facebook</div> <div class="twitter" title="Share link on Twitter">Twitter</div> </div> <div class="byline">By Paige Swygert</div> <nav class="contents"> <ul> <li> <a href="#geographic_range">Geographic Range</a> </li> <li> <a href="#habitat">Habitat</a> </li> <li> <a href="#physical_description">Physical Description</a> </li> <li> <a href="#reproduction">Reproduction</a> </li> <li> <a href="#lifespan_longevity">Lifespan/Longevity</a> </li> <li> <a href="#behavior">Behavior</a> </li> </ul> <ul> <li> <a href="#communication">Communication and Perception</a> </li> <li> <a href="#food_habits">Food Habits</a> </li> <li> <a href="#predation">Predation</a> </li> <li> <a href="#ecosystem_roles">Ecosystem Roles</a> </li> <li> <a href="#economic_importance_positive">Economic Importance for Humans: Positive</a> </li> <li> <a href="#economic_importance_negative">Economic Importance for Humans: Negative</a> </li> </ul> <ul> <li> <a href="#conservation_status">Conservation Status</a> </li> <li> <a href="#comments">Other Comments</a> </li> <li> <a href="#contributors">Contributors</a> </li> <li> <a href="#references">References</a> </li> </ul> </nav> <div class="inner-wrap"> <section class="hyphenate"> <h3 id="geographic_range">Geographic Range</h3> <p audience="advanced intermediate">Dusky slender opossums (<em>Marmosops fuscatus</em>) are native to the Neotropical region. Their geographic distribution is restricted to habitats in the Andes mountains in northern Venezuela and parts of Colombia, as well as the island of Trinidad. <span class="citations"> (<a href="#B068AC88-8D40-11EC-8577-005056AB59D3" class="citation">Cerqueria, 1985</a>; <a href="#3CE92D8E-8D2F-11EC-8577-005056AB59D3" class="citation">"Encyclopedia of Life", 2019</a>; <a href="#74DEC992-8D2F-11EC-BEC3-005056AB59D3" class="citation">Gardner, et al., 2005</a>; <a href="#7C194A9E-8D2E-11EC-8577-005056AB59D3" class="citation">Pérez-Hernandez, et al., 2015</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Biogeographic Regions</li> <li> <a class="gloss" href="#20020915000403">neotropical</a> <ul> <li> <a class="gloss" href="#20020904145365">native</a> </li> </ul> </li> </ul> </section> <section class="hyphenate"> <h3 id="habitat">Habitat</h3> <p audience="advanced intermediate">Dusky slender opossums primarily occupy wet montane forest habitats. They are partially arboreal, but prefer to live on or near the forest floor. They prefer areas with sufficient vegetative cover, in which they can hide from predators and search for prey. Dusky slender opossums do not migrate, but will move between areas depending on levels of precipitation and predation. Dusky slender opossums have been reported between 650 and 2,400 m above sea level. <span class="citations"> (<a href="#88B7358A-8D3E-11EC-BEC3-005056AB59D3" class="citation">"Dusky Slender Opossum", 2012</a>; <a href="#7C194A9E-8D2E-11EC-8577-005056AB59D3" class="citation">Pérez-Hernandez, et al., 2015</a>)</span></p> <ul class="keywords donthyphenate "> <li class="keywords-header">Habitat Regions</li> <li> <a class="gloss" href="#20020904145794">terrestrial</a> </li> </ul> <ul class="keywords donthyphenate last"> <li class="keywords-header">Terrestrial Biomes</li> <li> <a class="gloss" href="#20020904145828">forest</a> </li> <li> <a class="gloss" href="#20020904145818">mountains</a> </li> </ul> <ul class="aside block-grid donthyphenate one-up"> <li> <dl> <dt>Range elevation</dt> <dd>650 to 2400 m</dd> <dd class="english">2132.55 to 7874.02 ft</dd> </dl> </li> </ul> </section> <section class="hyphenate"> <h3 id="physical_description">Physical Description</h3> <p audience="advanced intermediate">Dusky slender opossums are small marsupials. They have brown or grey-brown dorsal fur and white ventral fur that is grey at the base. Their faces are light brown with black eye rings, and their tails are hairless and grey or brown in olor. Dusky slender opossums weight between 41 and 110 g, and are 12.0 to 15.5 cm long, from head to rump. Dusky slender opossums have prehensile tails that are as long or longer than their bodies, between 14.8 and 18.2 cm long, which they use to climb vegetation. On average, males are slightly larger than females, but no other sexual dimorphism is present. <span class="citations"> (<a href="#A6C8778E-9818-11EC-9C18-005056AB59D3" class="citation">Döring, 2022</a>; <a href="#3CE92D8E-8D2F-11EC-8577-005056AB59D3" class="citation">"Encyclopedia of Life", 2019</a>; <a href="#073050A4-8D3F-11EC-8577-005056AB59D3" class="citation">Nihranz and L., 2013</a>; <a href="#6FF6E7E4-32B5-11ED-A32C-005056AB59D3" class="citation">Wilson and Mittermeier, 2015</a>)</span></p> <ul class="keywords donthyphenate "> <li class="keywords-header">Other Physical Features</li> <li> <a class="gloss" href="#20020916130951">endothermic</a> </li> <li> <a class="gloss" href="#20020904145642">bilateral symmetry</a> </li> </ul> <ul class="keywords donthyphenate last"> <li class="keywords-header">Sexual Dimorphism</li> <li> <span>sexes alike</span> </li> <li> <span>male larger</span> </li> </ul> <ul class="aside block-grid donthyphenate two-up"> <li> <dl> <dt>Average mass</dt> <dd>45 g</dd> <dd class="english">1.59 oz</dd> </dl> </li> <li> <dl> <dt>Average length</dt> <dd>13.28 cm</dd> <dd class="english">5.23 in</dd> </dl> </li> </ul> </section> <section class="hyphenate"> <h3 id="reproduction">Reproduction</h3> <p audience="advanced intermediate">Dusky slender opossums are polygynandrous, meaning both males and females have multiple mates. To attract mates, male dusky slender opossums produce clicking vocalizations. Females care for young without the help of males. Females reproduce multiple times throughout their life, usually producing one litter per year. However, there are reports of females producing up to three litters in one year. <span class="citations"> (<a href="#3CE92D8E-8D2F-11EC-8577-005056AB59D3" class="citation">"Encyclopedia of Life", 2019</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Mating System</li> <li> <a class="gloss" href="#20020904145483">polygynandrous (promiscuous)</a> </li> </ul> <p audience="advanced intermediate">Female dusky slender opossums gestate young in utero for an average of 12 days. They give birth to altricial young, approximately 1 to 2 cm in length and weighing approximately 0.13 g. Newborns crawl from the birth canal into a pouch on the belly of their mother. Juvenile dusky slender opossums, also called joeys, spend roughly 2 months in the pouch of their mother, where they latch onto a nipple and feed on milk. After weaning, juveniles are dependent on their mother for another 3 months. Both female and male dusky slender opossums reach sexual maturity at 5 to 8 months old. <span class="citations"> (<a href="#3CE92D8E-8D2F-11EC-8577-005056AB59D3" class="citation">"Encyclopedia of Life", 2019</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Key Reproductive Features</li> <li> <a class="gloss" href="#20020904145554">iteroparous</a> </li> <li> <a class="gloss" href="#20020904145584">seasonal breeding</a> </li> <li> <span>gonochoric/gonochoristic/dioecious (sexes separate)</span> </li> <li> <a class="gloss" href="#20020904145786">sexual</a> </li> <li> <a class="gloss" href="#20020904145695">viviparous</a> </li> </ul> <ul class="aside block-grid donthyphenate three-up"> <li> <dl> <dt>Breeding interval</dt> <dd>Females have a litter of young approximately once per year.</dd> </dl> </li> <li> <dl> <dt>Breeding season</dt> <dd>Opossums tend to breed from September through March.</dd> </dl> </li> <li> <dl> <dt>Range number of offspring</dt> <dd>1 to 13</dd> </dl> </li> <li> <dl> <dt>Average gestation period</dt> <dd>12 days</dd> </dl> </li> <li> <dl> <dt>Average weaning age</dt> <dd>2 months</dd> </dl> </li> <li> <dl> <dt>Average time to independence</dt> <dd>5 months</dd> </dl> </li> <li> <dl> <dt>Range age at sexual or reproductive maturity (female)</dt> <dd>8 to 12 months</dd> </dl> </li> <li> <dl> <dt>Range age at sexual or reproductive maturity (male)</dt> <dd>8 to 12 months</dd> </dl> </li> </ul> <p audience="advanced intermediate">There is limited information regarding parental investment in dusky slender opossums specifically. However, with other species in the genus <a class="taxon-link rank-genus" href="/accounts/Marmosops/">Marmosops</a>, females play an important role in the success of their offspring, while males exhibit no parental investment beyond the act of mating. After giving birth, females carry their young, also called joeys, in their pouch for another 2 months. Newborn opossums must crawl from the birth canal into the pouch, and often mothers will make their journey to the pouch as easy as possible without directly helping them. For example, mothers will lick the ventral hairs that lead into their pouch to mat them down so that joeys do not lose their grip.</p> <p audience="advanced intermediate">If a female has a litter size greater than the number of teats available, then the young that do not immediately attach to the teats will die. While in the pouch, joeys will essentially only sleep and eat. Joeys are fully weaned after around 2 months, after which they vacate the pouch. However, weaned young remain with their mothers for approximately 3 more months before becoming independent. During this time, mothers protect their young and help them obtain food that more closely resembles the diet of an adult. Dusky slender opossums reach full independence at about 5 months old, after which they are also considered sexually mature.</p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Parental Investment</li> <li> <a class="gloss" href="#20020904145328">altricial</a> </li> <li> <a class="gloss" href="#20020904145746">female parental care</a> </li> <li> <span>pre-fertilization</span> <ul> <li> <span>provisioning</span> </li> </ul> </li> <li> <span>pre-hatching/birth</span> <ul> <li> <span>provisioning</span> <ul> <li> <span>female</span> </li> </ul> </li> <li> <span>protecting</span> <ul> <li> <span>female</span> </li> </ul> </li> </ul> </li> <li> <span>pre-weaning/fledging</span> <ul> <li> <span>provisioning</span> <ul> <li> <span>female</span> </li> </ul> </li> <li> <span>protecting</span> <ul> <li> <span>female</span> </li> </ul> </li> </ul> </li> <li> <span>pre-independence</span> <ul> <li> <span>provisioning</span> <ul> <li> <span>female</span> </li> </ul> </li> <li> <span>protecting</span> <ul> <li> <span>female</span> </li> </ul> </li> </ul> </li> </ul> </section> <section class="hyphenate"> <h3 id="lifespan_longevity">Lifespan/Longevity</h3> <p audience="advanced intermediate">Because of their relatively small size and short reproduction cycle, species in the genus <a class="taxon-link rank-genus" href="/accounts/Marmosops/">Marmosops</a> have short lifespans; they usually survive 1 to 2 years in the wild. However, they have been known to survive up to 4 years in captivity. <span class="citations"> (<a href="#A6C8778E-9818-11EC-9C18-005056AB59D3" class="citation">Döring, 2022</a>)</span></p> <ul class="aside block-grid donthyphenate two-up"> <li> <dl> <dt>Typical lifespan<br /><span>Status: wild</span></dt> <dd>1 to 2 years</dd> </dl> </li> <li> <dl> <dt>Average lifespan<br /><span>Status: captivity</span></dt> <dd>4 years</dd> </dl> </li> </ul> </section> <section class="hyphenate"> <h3 id="behavior">Behavior</h3> <p audience="advanced intermediate">Dusky slender opossums are solitary animals except during the breeding season. Males are territorial during the breeding season and can become violent towards competing males when searching for mates. Although they live in forests, dusky slender opossums do not frequently climb trees, but prefer to stay in understory foliage. Dusky slender opossums are crepuscular and nocturnal, often emerging around 7 pm with another spike in activity closer to 3 am. <span class="citations"> (<a href="#7C194A9E-8D2E-11EC-8577-005056AB59D3" class="citation">Pérez-Hernandez, et al., 2015</a>; <a href="#6FF933C8-8D3D-11EC-BEC3-005056AB59D3" class="citation">Saldaña, et al., 2019</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Key Behaviors</li> <li> <span>terricolous</span> </li> <li> <a class="gloss" href="#20020904145503">nocturnal</a> </li> <li> <a class="gloss" href="#20020904145472">motile</a> </li> <li> <a class="gloss" href="#20020904145569">nomadic</a> </li> <li> <a class="gloss" href="#20020904145381">solitary</a> </li> <li> <a class="gloss" href="#20020904145597">territorial</a> </li> </ul> <h4>Home Range</h4> <p audience="advanced intermediate">Dusky slender opossums stay in one general area, but are nomadic. They will stay in areas that have abundant food and water and leave when they feel resources are not as available. No exact home range or territory sizes are reported for dusky slender opossums. <span class="citations"> (<a href="#B068AC88-8D40-11EC-8577-005056AB59D3" class="citation">Cerqueria, 1985</a>; <a href="#A6C8778E-9818-11EC-9C18-005056AB59D3" class="citation">Döring, 2022</a>; <a href="#7C194A9E-8D2E-11EC-8577-005056AB59D3" class="citation">Pérez-Hernandez, et al., 2015</a>)</span></p> </section> <section class="hyphenate"> <h3 id="communication">Communication and Perception</h3> <p audience="advanced intermediate">Dusky slender opossums use various noises to ward off potential predators, such as hisses, growls, and screeches. They also communicate acoustically when attracting mates, using specific clicking calls. Beyond these sounds, dusky slender opossums tend to stay relatively quiet. In addition to mating calls, dusky slender opossums rely on olfactory cues to attract or locate mates, producing chemicals from specialized scent glands. Dusky slender opossums have strong night vision, but their color vision is not as developed. <span class="citations"> (<a href="#073050A4-8D3F-11EC-8577-005056AB59D3" class="citation">Nihranz and L., 2013</a>)</span></p> <ul class="keywords donthyphenate "> <li class="keywords-header">Communication Channels</li> <li> <a class="gloss" href="#20020904145694">visual</a> </li> <li> <a class="gloss" href="#20020904145822">acoustic</a> </li> <li> <a class="gloss" href="#20020904145606">chemical</a> </li> </ul> <ul class="keywords donthyphenate "> <li class="keywords-header">Other Communication Modes</li> <li> <a class="gloss" href="#20020904145489">scent marks</a> </li> </ul> <ul class="keywords donthyphenate last"> <li class="keywords-header">Perception Channels</li> <li> <a class="gloss" href="#20020904145500">tactile</a> </li> <li> <a class="gloss" href="#20020904145822">acoustic</a> </li> <li> <a class="gloss" href="#20020904145606">chemical</a> </li> </ul> </section> <section class="hyphenate"> <h3 id="food_habits">Food Habits</h3> <p audience="advanced intermediate">Dusky slender opossums are generalist omnivores and will opportunistically feed on what is available in their habitat. However, the majority of their diet consists of insects, non-insect arthropods, flowers, flower parts, fruits, and small vertebrates. <span class="citations"> (<a href="#7C194A9E-8D2E-11EC-8577-005056AB59D3" class="citation">Pérez-Hernandez, et al., 2015</a>)</span></p> <ul class="keywords donthyphenate "> <li class="keywords-header">Primary Diet</li> <li> <a class="gloss" href="#20020904145419">carnivore</a> <ul> <li> <span>eats terrestrial vertebrates</span> </li> <li> <a class="gloss" href="#20020904145711">insectivore</a> </li> </ul> </li> <li> <a class="gloss" href="#20020904145426">herbivore</a> <ul> <li> <a class="gloss" href="#20020904145622">folivore</a> </li> <li> <a class="gloss" href="#20020904145322">frugivore</a> </li> </ul> </li> <li> <a class="gloss" href="#20020904145763">omnivore</a> </li> </ul> <ul class="keywords donthyphenate "> <li class="keywords-header">Animal Foods</li> <li> <span>insects</span> </li> <li> <span>terrestrial non-insect arthropods</span> </li> </ul> <ul class="keywords donthyphenate last"> <li class="keywords-header">Plant Foods</li> <li> <span>fruit</span> </li> <li> <span>flowers</span> </li> </ul> </section> <section class="hyphenate"> <h3 id="predation">Predation</h3> <p audience="advanced intermediate">There is limited information regarding the natural predators of dusky slender opossums. They likely serve as prey for larger carnivores, including foxes, <a class="taxon-link" href="/accounts/Canis_latrans/">coyotes</a>, and snakes. To avoid detection by predators, dusky slender opossums spend much of their time in vegetative clutter. However, if directly threatened by a predator, dusky slender opossums can also defend themselves by playing dead. When doing so, their lips draw back to bare their teeth, their saliva begins to foam around their mouths, and their anal glands secrete a foul smell. This is an automatic, involuntary response to stressful situations. Dusky slender opossums regain consciousness anywhere between a few minutes and a few hours after this response is triggered. <span class="citations"> (<a href="#A6C8778E-9818-11EC-9C18-005056AB59D3" class="citation">Döring, 2022</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Anti-predator Adaptations</li> <li> <a class="gloss" href="#20020916123459">aposematic</a> </li> </ul> </section> <section class="hyphenate"> <h3 id="ecosystem_roles">Ecosystem Roles</h3> <p audience="advanced intermediate">Ecologically, opossums are important for their role in the food chain. They eat smaller animals and insects and serve as prey for other carnivorous animals like coyotes, foxes, and even large snakes. Dusky slender opossums also play a role in seed dispersal of native plants through endozoochory - they eat fruits and seeds and disperse them in their excrement. <span class="citations"> (<a href="#D361FA16-AE13-11EC-9E6F-005056AB59D3" class="citation">New World Encyclopedia contributors, 2008</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Ecosystem Impact</li> <li> <span>disperses seeds</span> </li> </ul> </section> <section class="hyphenate"> <h3 id="economic_importance_positive">Economic Importance for Humans: Positive</h3> <p audience="advanced intermediate">In many regions of the world, opossums (order <a class="taxon-link rank-order" href="/accounts/Didelphimorphia/">Didelphimorphia</a>) are bought and sold as food items. They are also used to produce "opossum oil", which is high in fatty acids and is often used as a topical treatment for arthritis. Their role in ecosystems is also important to humans. For example, they control populations of insects that are potential crop pests and disease vectors. Furthermore, they are a source of food for large carnivores. Given these ecosystem services, fluctuations in the size of their populations can have effects on higher and lower trophic levels. <span class="citations"> (<a href="#D361FA16-AE13-11EC-9E6F-005056AB59D3" class="citation">New World Encyclopedia contributors, 2008</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Positive Impacts</li> <li> <a class="gloss" href="#20020904145418">food</a> </li> <li> <a class="gloss" href="#20020904145447">source of medicine or drug</a> </li> <li> <span>research and education</span> </li> <li> <span>controls pest population</span> </li> </ul> </section> <section class="hyphenate"> <h3 id="economic_importance_negative">Economic Importance for Humans: Negative</h3> <p audience="advanced intermediate">Opossums (order <a class="taxon-link rank-order" href="/accounts/Didelphimorphia/">Didelphimorphia</a>) can carry diseases, including tuberculosis, leptospirosis, and spotted fever, which can be transmitted to humans and domestic animals. Most of these zoonotic diseases are spread from urine and feces. However, for the most part, dusky slender opossums avoid developed areas and conflict with humans in general. <span class="citations"> (<a href="#0CBD6842-AE17-11EC-ACEF-005056AB59D3" class="citation">Somma, 2021</a>)</span></p> <ul class="keywords donthyphenate last"> <li class="keywords-header">Negative Impacts</li> <li> <span>injures humans</span> <ul> <li> <a class="gloss" href="#20020904145449">causes disease in humans</a> </li> <li> <span>carries human disease</span> </li> </ul> </li> <li> <a class="gloss" href="#20020904145556">causes or carries domestic animal disease</a> </li> </ul> </section> <section class="hyphenate"> <h3 id="conservation_status">Conservation Status</h3> <p audience="advanced intermediate">Dusky slender opossums are currently considered data deficient by the IUCN Red List. However their populations appear to be decreasing due to habitat loss and degradation by human developments. Dusky slender opossums and are not listed in the CITES appendices, U.S. Federal List, and State of Michigan List. Further research is required to determine the conservation status of dusky slender opossums throughout their range.</p> <ul class="aside block-grid donthyphenate three-up"> <li> <dl> <dt> <a class="external-link" href="http://www.iucnredlist.org/">IUCN Red List</a> </dt> <dd> <span>Data Deficient</span> </dd> </dl> </li> <li> <dl> <dt> <a class="external-link" href="http://www.fws.gov/endangered/">US Federal List</a> </dt> <dd> <span>No special status</span> </dd> </dl> </li> <li> <dl> <dt> <a class="external-link" href="http://www.cites.org/eng/app/appendices.php">CITES</a> </dt> <dd> <span>No special status</span> </dd> </dl> </li> <li> <dl> <dt> <a class="external-link" href="http://mnfi.anr.msu.edu/data/specialanimals.cfm">State of Michigan List</a> </dt> <dd> <span>No special status</span> </dd> </dl> </li> </ul> </section> <section class="hyphenate"> <h3 id="comments">Other Comments</h3> <p audience="advanced intermediate">There are a few generic names for <em>Marmosops fuscatus</em>, the two most common being "dusky slender opossums" and "gray-bellied slender mouse opossums".</p> </section> <section class="hyphenate"> <h3 id="contributors">Contributors</h3> <p>Paige Swygert (author), Colorado State University, Galen Burrell (editor), Special Projects. </p> </section> <section class="offscreen"> <h3 id="glossary">Glossary</h3> <div id="20020915000403"> <dl> <dt>Neotropical</dt> <dd> <p>living in the southern part of the New World. In other words, Central and South America.</p> <p align="center"> <img alt="World Map" src="/images/worldmap.2001.jpg" /> </p> </dd> </dl> </div> <div id="20020904145822"> <dl> <dt>acoustic</dt> <dd> <p>uses sound to communicate</p> </dd> </dl> </div> <div id="20020904145328"> <dl> <dt>altricial</dt> <dd> <p>young are born in a relatively underdeveloped state; they are unable to feed or care for themselves or locomote independently for a period of time after birth/hatching. In birds, naked and helpless after hatching.</p> </dd> </dl> </div> <div id="20020916123459"> <dl> <dt>aposematic</dt> <dd> <p>having coloration that serves a protective function for the animal, usually used to refer to animals with colors that warn predators of their toxicity. For example: animals with bright red or yellow coloration are often toxic or distasteful.</p> </dd> </dl> </div> <div id="20020904145642"> <dl> <dt>bilateral symmetry</dt> <dd> <p>having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.</p> </dd> </dl> </div> <div id="20020904145419"> <dl> <dt>carnivore</dt> <dd> <p>an animal that mainly eats meat</p> </dd> </dl> </div> <div id="20020904145449"> <dl> <dt>causes disease in humans</dt> <dd> <p>an animal which directly causes disease in humans. For example, diseases caused by infection of filarial nematodes (elephantiasis and river blindness).</p> </dd> </dl> </div> <div id="20020904145556"> <dl> <dt>causes or carries domestic animal disease</dt> <dd> <p>either directly causes, or indirectly transmits, a disease to a domestic animal</p> </dd> </dl> </div> <div id="20020904145606"> <dl> <dt>chemical</dt> <dd> <p>uses smells or other chemicals to communicate</p> </dd> </dl> </div> <div id="20020904145447"> <dl> <dt>drug</dt> <dd> <p>a substance used for the diagnosis, cure, mitigation, treatment, or prevention of disease</p> </dd> </dl> </div> <div id="20020916130951"> <dl> <dt>endothermic</dt> <dd> <p>animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.</p> </dd> </dl> </div> <div id="20020904145746"> <dl> <dt>female parental care</dt> <dd> <p>parental care is carried out by females</p> </dd> </dl> </div> <div id="20020904145622"> <dl> <dt>folivore</dt> <dd> <p>an animal that mainly eats leaves.</p> </dd> </dl> </div> <div id="20020904145418"> <dl> <dt>food</dt> <dd> <p>A substance that provides both nutrients and energy to a living thing.</p> </dd> </dl> </div> <div id="20020904145828"> <dl> <dt>forest</dt> <dd> <p>forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.</p> </dd> </dl> </div> <div id="20020904145322"> <dl> <dt>frugivore</dt> <dd> <p>an animal that mainly eats fruit</p> </dd> </dl> </div> <div id="20020904145426"> <dl> <dt>herbivore</dt> <dd> <p>An animal that eats mainly plants or parts of plants.</p> </dd> </dl> </div> <div id="20020904145711"> <dl> <dt>insectivore</dt> <dd> <p>An animal that eats mainly insects or spiders.</p> </dd> </dl> </div> <div id="20020904145554"> <dl> <dt>iteroparous</dt> <dd> <p>offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).</p> </dd> </dl> </div> <div id="20020904145472"> <dl> <dt>motile</dt> <dd> <p>having the capacity to move from one place to another.</p> </dd> </dl> </div> <div id="20020904145818"> <dl> <dt>mountains</dt> <dd> <p>This terrestrial biome includes summits of high mountains, either without vegetation or covered by low, tundra-like vegetation.</p> </dd> </dl> </div> <div id="20020904145365"> <dl> <dt>native range</dt> <dd> <p>the area in which the animal is naturally found, the region in which it is endemic.</p> </dd> </dl> </div> <div id="20020904145503"> <dl> <dt>nocturnal</dt> <dd> <p>active during the night</p> </dd> </dl> </div> <div id="20020904145569"> <dl> <dt>nomadic</dt> <dd> <p>generally wanders from place to place, usually within a well-defined range.</p> </dd> </dl> </div> <div id="20020904145763"> <dl> <dt>omnivore</dt> <dd> <p>an animal that mainly eats all kinds of things, including plants and animals</p> </dd> </dl> </div> <div id="20020904145483"> <dl> <dt>polygynandrous</dt> <dd> <p>the kind of polygamy in which a female pairs with several males, each of which also pairs with several different females.</p> </dd> </dl> </div> <div id="20020904145489"> <dl> <dt>scent marks</dt> <dd> <p>communicates by producing scents from special gland(s) and placing them on a surface whether others can smell or taste them</p> </dd> </dl> </div> <div id="20020904145584"> <dl> <dt>seasonal breeding</dt> <dd> <p>breeding is confined to a particular season</p> </dd> </dl> </div> <div id="20020904145786"> <dl> <dt>sexual</dt> <dd> <p>reproduction that includes combining the genetic contribution of two individuals, a male and a female</p> </dd> </dl> </div> <div id="20020904145381"> <dl> <dt>solitary</dt> <dd> <p>lives alone</p> </dd> </dl> </div> <div id="20020904145500"> <dl> <dt>tactile</dt> <dd> <p>uses touch to communicate</p> </dd> </dl> </div> <div id="20020904145794"> <dl> <dt>terrestrial</dt> <dd> <p>Living on the ground.</p> </dd> </dl> </div> <div id="20020904145597"> <dl> <dt>territorial</dt> <dd> <p>defends an area within the home range, occupied by a single animals or group of animals of the same species and held through overt defense, display, or advertisement</p> </dd> </dl> </div> <div id="20020904145694"> <dl> <dt>visual</dt> <dd> <p>uses sight to communicate</p> </dd> </dl> </div> <div id="20020904145695"> <dl> <dt>viviparous</dt> <dd> <p>reproduction in which fertilization and development take place within the female body and the developing embryo derives nourishment from the female.</p> </dd> </dl> </div> </section> <section class="hyphenate"> <h3 id="references">References</h3> <p id="88B7358A-8D3E-11EC-BEC3-005056AB59D3">2012. "Dusky Slender Opossum" (On-line). Encyclopedia of Life. Accessed February 13, 2022 at <tt><a href="https://eol.org/pages/290111">https://eol.org/pages/290111</a></tt>. </p> <p id="3CE92D8E-8D2F-11EC-8577-005056AB59D3">2019. "Encyclopedia of Life" (On-line). Slender Opposum. Accessed February 13, 2022 at <tt><a href="https://eol.org/pages/14855/articles">https://eol.org/pages/14855/articles</a></tt>. </p> <p id="A5C0EE78-32B6-11ED-898D-005056AB59D3">2020. "Nature Curiosity: Why Do Marsupials Have Pouches?" (On-line). Accessed March 05, 2022 at <tt><a href="https://www.reconnectwithnature.org/news-events/the-buzz/nature-curiosity-why-do-marsupials-have-pouches">https://www.reconnectwithnature.org/news-events/the-buzz/nature-curiosity-why-do-marsupials-have-pouches</a></tt>. </p> <p id="9184678A-9D94-11EC-A1AB-005056AB59D3">2021. "Reproduction - Life Cycle" (On-line). Opossum Society of the United States. Accessed March 05, 2022 at <tt><a href="https://opossumsocietyus.org/general-opossum-information/opossum-reproduction-lifecycle/">https://opossumsocietyus.org/general-opossum-information/opossum-reproduction-lifecycle/</a></tt>. </p> <p id="B068AC88-8D40-11EC-8577-005056AB59D3">Cerqueria, R. 1985. The Distribution of Didelphis in South America (Polyprotodontia, Didelphidae). <span style="font-style: italic">Journal of Biogeography</span>, 12: 135-145. 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Accessed February 28, 2022 at <tt><a href="https://www.gbif.org/species/113278755#:~:text=The%20opossum%20lifespan%20is%20unusually,or%20more%20years%20in%20captivity.">https://www.gbif.org/species/113278755#:~:text=The%20opossum%20lifespan%20is%20unusually,or%20more%20years%20in%20captivity.</a></tt>. </p> <p id="118A345A-8D41-11EC-8577-005056AB59D3">Ferreira, C., A. Mendes de Oliveira, L. Lima-Silva, R. Vieira Rossi. 2020. Taxonomic review of the slender mouse opossums of the “Parvidens” group from Brazil (Didelphimorphia: Didelphidae: Marmosops), with description of a new species. <span style="font-style: italic">Zootaxa</span>, 4890 (2): 201-233. Accessed February 13, 2022 at <tt><a href="https://www.researchgate.net/profile/Ana-Mendes-Oliveira/publication/347303813_Taxonomic_review_of_the_slender_mouse_opossums_of_the_Parvidens_group_from_Brazil_Didelphimorphia_Didelphidae_Marmosops_with_description_of_a_new_species/links/60b92696299bf10dff917284/Taxonomic-review-of-the-slender-mouse-opossums-of-the-Parvidens-group-from-Brazil-Didelphimorphia-Didelphidae-Marmosops-with-description-of-a-new-species.pdf">https://www.researchgate.net/profile/Ana-Mendes-Oliveira/publication/347303813_Taxonomic_review_of_the_slender_mouse_opossums_of_the_Parvidens_group_from_Brazil_Didelphimorphia_Didelphidae_Marmosops_with_description_of_a_new_species/links/60b92696299bf10dff917284/Taxonomic-review-of-the-slender-mouse-opossums-of-the-Parvidens-group-from-Brazil-Didelphimorphia-Didelphidae-Marmosops-with-description-of-a-new-species.pdf</a></tt>. </p> <p id="74DEC992-8D2F-11EC-BEC3-005056AB59D3">Gardner, A., D. Wilson, D. Reeder. 2005. "Mammal Species of the World" (On-line). Accessed February 13, 2022 at <tt><a href="http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?s=y&id=10400095">http://www.departments.bucknell.edu/biology/resources/msw3/browse.asp?s=y&id=10400095</a></tt>. </p> <p id="0B251898-32B7-11ED-AEE5-005056AB59D3">Hausheer, J. 2019. "Why Do Marsupials Have Pouches? And Other Questions" (On-line). Cool Green Science. Accessed March 05, 2022 at <tt><a href="https://blog.nature.org/science/2019/07/02/why-do-marsupials-have-pouches-and-other-questions/">https://blog.nature.org/science/2019/07/02/why-do-marsupials-have-pouches-and-other-questions/</a></tt>. </p> <p id="3CD61BBA-A899-11EC-9C18-005056AB59D3">Leiner, N., C. Dickman, W. Silva. 2010. Multiscale habitat selection by slender opossums (Marmosops spp.) in the Atlantic forest of Brazil.. <span style="font-style: italic">Journal of Mammology</span>, Vol. 91, Issue 3: 561-565. Accessed March 19, 2022 at <tt><a href="doi:10.1644/09-MAMM-A-328.1">doi:10.1644/09-MAMM-A-328.1</a></tt>. </p> <p id="C0ABB9F8-A89A-11EC-9C18-005056AB59D3">Leiner, N., W. Silva. 2007. Seasonal Variation in the Diet of the Brazilian Slender Opossum in a Montane Atlantic Forest Area, Southeastern Brazil. <span style="font-style: italic">Journal of Mammology</span>, Vol. 88, Issue 1: 158-164. Accessed March 19, 2022 at <tt><a href="https://doi.org/10.1644/06-MAMM-A-088R2.1">https://doi.org/10.1644/06-MAMM-A-088R2.1</a></tt>. </p> <p id="D361FA16-AE13-11EC-9E6F-005056AB59D3">New World Encyclopedia contributors, 2008. "Opossum" (On-line). New World Encyclopedia. Accessed March 25, 2022 at <tt><a href="https://www.newworldencyclopedia.org/entry/Opossum">https://www.newworldencyclopedia.org/entry/Opossum</a></tt>. </p> <p id="073050A4-8D3F-11EC-8577-005056AB59D3">Nihranz, C., S. L.. 2013. "Didelphidae" (On-line). Animal Diversity Web. Accessed February 13, 2022 at <tt><a href="https://animaldiversity.org/accounts/Didelphidae/">https://animaldiversity.org/accounts/Didelphidae/</a></tt>. </p> <p id="EFDAD4BA-8D2F-11EC-BEC3-005056AB59D3">Nowak, R. 2018. <span style="font-style: italic"><a class="reference" href="https://ebookcentral.proquesWalker's">https://ebookcentral.proquesWalker's</a> Mammals of the World : Monotremes, Marsupials, Afrotherians, Xenarthrans, and Sundatherianst.com/lib/csu/reader.action?docID=5108357</span>. Baltimore, Maryland: John's Hopkins University Press. Accessed February 13, 2022 at <tt><a href="https://ebookcentral.proquest.com/lib/CSU/detail.action?docID=5108357">https://ebookcentral.proquest.com/lib/CSU/detail.action?docID=5108357</a></tt>. </p> <p id="7C194A9E-8D2E-11EC-8577-005056AB59D3">Pérez-Hernandez, R., J. Ventura, M. López Fuster. 2015. "IUCN Red List" (On-line). Gray-bellied Slender Mouse Opposum. Accessed February 13, 2022 at <tt><a href="https://www.iucnredlist.org/species/12819/22179192">https://www.iucnredlist.org/species/12819/22179192</a></tt>. </p> <p id="6FF933C8-8D3D-11EC-BEC3-005056AB59D3">Saldaña, I., A. Cadavid, D. Gómez. 2019. Relative abundance and activity patterns of Didelphis marsupialis in a peri-urban area of Medellin, Colombia.. <span style="font-style: italic">Revista MVZ Cordoba</span>, Vol. 24, Issue 3: 7366-7371. Accessed February 13, 2022 at <tt><a href="doi:10.21897/rmvz.1352">doi:10.21897/rmvz.1352</a></tt>. </p> <p id="0CBD6842-AE17-11EC-ACEF-005056AB59D3">Somma, M. 2021. "The Dangers of Opossums" (On-line). Accessed March 25, 2022 at <tt><a href="https://sciencing.com/dangers-opossums-12044960.html">https://sciencing.com/dangers-opossums-12044960.html</a></tt>. </p> <p id="181EDB68-8D32-11EC-B6C3-005056AB59D3">Upham, N., J. Esselstyn, W. Jetz. 2019. Inferring the mammal tree: Species-level sets of phylogenies for questions in ecology, evolution, and conservation. <span style="font-style: italic">PLOS Biology</span>, 17 (12): 1 - 44. Accessed February 13, 2022 at <tt><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6892540/">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6892540/</a></tt>. </p> <p id="6FF6E7E4-32B5-11ED-A32C-005056AB59D3">Wilson, D., R. Mittermeier. 2015. <span style="font-style: italic">Handbook of Mammals of the World: 5. Monotremes and Marsupials</span>. 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href="/accounts/Chordata/sounds/" class="feature feature-sounds" rel="tooltip" data-original-title="Chordata: sounds (709)" data-delay="250">Chordata: sounds (709)</a> <span class="feature-off feature-maps"></span> </div> </li> <li> <span class="rank">Subphylum</span> <a href="/accounts/Vertebrata/" class="taxon-name rank-subphylum">Vertebrata</a> <span class="vernacular-name">vertebrates</span> <div class="features"> <a href="/accounts/Vertebrata/" class="feature feature-information" rel="tooltip" data-original-title="Vertebrata: information (1)" data-delay="250" data-total="3899">Vertebrata: information (1)</a> <a href="/accounts/Vertebrata/pictures/" class="feature feature-pictures" rel="tooltip" data-original-title="Vertebrata: pictures (15168)" data-delay="250">Vertebrata: pictures (15168)</a> <a href="/accounts/Vertebrata/specimens/" class="feature feature-specimens" rel="tooltip" data-original-title="Vertebrata: specimens (6827)" data-delay="250">Vertebrata: specimens (6827)</a> <a href="/accounts/Vertebrata/sounds/" class="feature feature-sounds" rel="tooltip" data-original-title="Vertebrata: sounds (709)" data-delay="250">Vertebrata: sounds (709)</a> <span class="feature-off feature-maps"></span> </div> </li> <li> <span class="rank">Class</span> <a href="/accounts/Mammalia/" class="taxon-name rank-class">Mammalia</a> <span class="vernacular-name">mammals</span> <div class="features"> <a href="/accounts/Mammalia/" class="feature feature-information" rel="tooltip" data-original-title="Mammalia: information (1)" data-delay="250" data-total="2048">Mammalia: information (1)</a> <a href="/accounts/Mammalia/pictures/" class="feature feature-pictures" rel="tooltip" data-original-title="Mammalia: pictures (4389)" data-delay="250">Mammalia: pictures (4389)</a> <a href="/accounts/Mammalia/specimens/" class="feature feature-specimens" rel="tooltip" data-original-title="Mammalia: specimens (6622)" data-delay="250">Mammalia: specimens (6622)</a> <a href="/accounts/Mammalia/sounds/" class="feature feature-sounds" rel="tooltip" data-original-title="Mammalia: sounds (13)" data-delay="250">Mammalia: sounds (13)</a> <span class="feature-off feature-maps"></span> </div> </li> <li> <span class="rank">Order</span> <a href="/accounts/Didelphimorphia/" class="taxon-name rank-order">Didelphimorphia</a> <span class="vernacular-name">American marsupials</span> <div class="features"> <a href="/accounts/Didelphimorphia/" class="feature feature-information" rel="tooltip" data-original-title="Didelphimorphia: information (1)" data-delay="250" data-total="61">Didelphimorphia: information (1)</a> <a href="/accounts/Didelphimorphia/pictures/" class="feature feature-pictures" rel="tooltip" data-original-title="Didelphimorphia: pictures (53)" data-delay="250">Didelphimorphia: pictures (53)</a> <a href="/accounts/Didelphimorphia/specimens/" class="feature feature-specimens" rel="tooltip" data-original-title="Didelphimorphia: specimens (147)" data-delay="250">Didelphimorphia: specimens (147)</a> <span class="feature-off feature-sounds"></span> <span class="feature-off feature-maps"></span> </div> </li> <li> <span class="rank">Family</span> <a href="/accounts/Didelphidae/" class="taxon-name rank-family">Didelphidae</a> <span class="vernacular-name">American opossums and opossums</span> <div class="features"> <a href="/accounts/Didelphidae/" class="feature feature-information" rel="tooltip" data-original-title="Didelphidae: information (1)" data-delay="250" data-total="60">Didelphidae: information (1)</a> <a href="/accounts/Didelphidae/pictures/" class="feature feature-pictures" rel="tooltip" data-original-title="Didelphidae: pictures (53)" data-delay="250">Didelphidae: pictures (53)</a> <a href="/accounts/Didelphidae/specimens/" class="feature feature-specimens" rel="tooltip" data-original-title="Didelphidae: specimens (147)" data-delay="250">Didelphidae: specimens (147)</a> <span class="feature-off feature-sounds"></span> <span class="feature-off feature-maps"></span> </div> </li> <li> <span class="rank">Genus</span> <a href="/accounts/Marmosops/" class="taxon-name rank-genus">Marmosops</a> <span class="vernacular-name">slender mouse opossums</span> <div class="features"> <span class="feature-off feature-information"></span> <a href="/accounts/Marmosops/pictures/" class="feature feature-pictures" rel="tooltip" data-original-title="Marmosops: pictures (1)" data-delay="250">Marmosops: pictures (1)</a> <a href="/accounts/Marmosops/specimens/" class="feature feature-specimens" rel="tooltip" data-original-title="Marmosops: specimens (5)" data-delay="250">Marmosops: specimens (5)</a> <span class="feature-off feature-sounds"></span> <span class="feature-off feature-maps"></span> </div> </li> <li class="active"> <span class="rank">Species</span> <a href="/accounts/Marmosops_fuscatus/" class="taxon-name rank-species">Marmosops fuscatus</a> <span class="vernacular-name">gray-bellied slender mouse opossum</span> <div class="features"> <a href="/accounts/Marmosops_fuscatus/" class="feature feature-information" rel="tooltip" data-original-title="Marmosops fuscatus: information (1)" data-delay="250" data-total="1">Marmosops fuscatus: information (1)</a> <span class="feature-off feature-pictures"></span> <a href="/accounts/Marmosops_fuscatus/specimens/" class="feature feature-specimens" rel="tooltip" data-original-title="Marmosops fuscatus: specimens (4)" data-delay="250">Marmosops fuscatus: specimens (4)</a> <span class="feature-off feature-sounds"></span> <span class="feature-off feature-maps"></span> </div> </li> </ul> </div> </div> </div> </div> </div> <div id="footer" aria-role="contentinfo"> <div class="inner-footer"> <div class="page-citation"> <p class="content">To cite this page: Swygert, P. 2023. "Marmosops fuscatus" (On-line), Animal Diversity Web. Accessed December 12, 2024 at https://animaldiversity.org/accounts/Marmosops_fuscatus/</p> </div> <div class="disclaimer"> <p class="content"><strong>Disclaimer:</strong> The Animal Diversity Web is an educational resource <strong>written largely by and for college students</strong>. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. </p> </div> <div class="footer-links"> <ul class="unstyled"> <li><a href="https://www.umich.edu/">U-M Gateway</a> | <a href="https://lsa.umich.edu/ummz/">U-M Museum of Zoology</a></li> <li> <a href="https://lsa.umich.edu/eeb/">U-M Ecology and Evolutionary Biology</a> </li> <li> © 2020 Regents of the University of Michigan </li> <li><a href="/feedback/error_form/">Report Error</a> / <a href="/feedback/comment_form/">Comment</a></li> </ul> </div> <div class="thanks-links"> <p>This material is based upon work supported by the <a href="https://nsf.gov">National Science Foundation</a> Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services. </p> <p> The ADW Team gratefully acknowledges their support. </p> </div> </div> </div> <script></script> </div> <script src="/static/js/jquery.colorbox.js"></script> <script src="/static/js/pica.information.js"></script> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? 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ADW: Marmosops fuscatus: INFORMATION