Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Ring tailed lemur: Lemur catta Description An average-sized lemur o Head-body length: 39-46 cm (15-18 in) o Tail length: 56-63 cm (22-25 in) o Weight: About 2-2.4 kg (4.4-5.5 lbs) Tail is longer than the body and is distinctive, with alternating black and white bands Grayish or reddish brown fur, with off-white underbelly, a white face with dark eye patches and snout Often described as cat-like or raccoon-like in appearance due to the eye patches and angular ears In the Wild Habitat and Range Primarily dry forests and bush of southern and southwestern Madagascar Can inhabit many habitat types including spiny bush, lowland gallery forest (forests along rivers), dry deciduous forest, rock canyons and upland inland areas Survives in a range of conditions, from coldest found in Madagascar (lows about 6°F) to the hottest and driest (highs about 118 °F) In other parts of their range, they survive harsh seasonal conditions such as drought and food scarcity Diet Opportunistic omnivores: Primarily eats fruit, but diet varies with habitat and season Will also eat leaves, flowers, insects, spiders, and other small lizards and birds Tamarind tree is an important food source because it produces fruit and leaves at different times of year, so provides a reliable year-round source of food and can compose up to about 50% of their diet at certain times of year In the more arid parts of their range, ring tailed lemurs obtain water from succulent plants Adaptations Are good climbers and leapers o Spend a good deal of time in trees, but are the most terrestrial (ground-dwelling) of all lemur species Will frequently sun themselves by sitting upright and resting their forearms on their knees o Exposes underside to sunlight and is thought to aid in thermoregulation o Often observed on cold mornings or following cold nights Social structure Live in groups up to about 24 animals, average group size is about 16 Groups consist of related adult females, unrelated males, and offspring The Maryland Zoo in Baltimore February 2014 Ring tailed lemur: Lemur catta o Females are dominant to males, have a dominance hierarchy, and remain with the troop their entire life Males leave the troop and will often travel in pairs or trios until they can integrate into a new group When integrating into a new group, young males will challenge the resident males for breeding rights Troops are territorial and will scent mark and fight to defend their territory, although territories can sometimes overlap As in many primates, social grooming is important. All lemurs have specialized front teeth that form a dental comb used in grooming. Lifespan In the wild: 16-19 years In captivity: Up to 27 years Ecosystem relationships Although there is much that we don’t know about ring tailed lemurs, likely predators of ring-tailed lemurs include raptors, fossas, civets, snakes, and brown lemurs Domestic cats introduced to Madagascar are known to predate ring tailed lemurs Humans also hunt them for food They are fruit eaters, so are likely seed dispersers and their feeding behavior probably influences local plant communities Reproduction Seasonal breeders, with a highly synchronized breeding system Females typically go into estrus within two weeks of each other, and all of the newborn lemurs in a troop will be born within a few days of each other Give birth to 1 or 2 young after a 4-4.5 month gestation Females are reproductively mature by about 1 year, but typically don’t have offspring until they are 3, and generally reproduce annually Females are generally not aggressive toward the offspring of other females o In fact, they will switch infants, form play groups, and even allow other infants to nurse o This is likely due to the fact that most females in a group are related to each other Activity Diurnal Other Facts Are the most well-studied of lemur species Males have scent glands near their wrists and will “stink fight” during the breeding season for access to females The Maryland Zoo in Baltimore February 2014 Ring tailed lemur: Lemur catta o The male will rub scent from these glands on his tail, drawing the tail under his body and between his legs o He will then quickly pull his tail back and up and over his head, shaking it and wafting his scent toward the rival male Conservation Status and Threats IUCN listed as Near Threatened All members of the family Lemuridae (bamboo lemurs and “true lemurs,” including ringtailed and ruffed lemurs) are listed by the USFWS as Endangered Populations are decreasing (reduction of 20-25% over the past 24 years) Habitat loss, slash and burn agriculture, and hunting are the most serious threats Political unrest in Madagascar has created conservation challenges for all Malagasy species. Bans on illegal hunting and logging in protected areas are increasingly difficult to enforce and many international aid organizations have withdrawn support due to the unconstitutional change of power that happened in 2009. The illegal pet trade is a problem for many prosimian species, including ring tailed lemurs At the Zoo MZIB holds two ring-tailed lemurs: o Alexander: Male, born 2005 o Fern: Female, born 2007 The pair arrived at the Zoo in 2013 from Duke Lemur Center They are housed outdoors and are on exhibit during the warmer months of the year During the winter, they are housed indoors and are not viewable by the public What We Can Do Make sure you know the origin of the products you buy o Buying something imported illegally supports the black market by sustaining demand Ex. Rosewood is still being illegally imported from Madagascar despite bans on logging because people are still buying it o Look for wood and paper products that are certified by the Forest Stewardship Council. The FSC is an organization that certifies and promotes the responsible use of wood and paper products. Do not support the illegal pet trade o Despite their cute appearance, lemurs never make good pets. The illegal pet trade contributes to the population decline of many prosimian species. Make environmentally responsible lifestyle decisions to help conserve habitat – conserve energy, reduce consumption, recycle and reuse whenever possible, reduce litter and pollution The Maryland Zoo in Baltimore February 2014 Ring tailed lemur: Lemur catta Consider donating or providing support to organizations working to protect lemurs (like The Zoo). Many other organizations are also working both here in the US and in the field to understand and protect lemurs. Here are a few suggestions: o The Madagascar Fauna Group, Conservation International, Duke Lemur Center, Myakka Lemur Reserve References and Additional Resources ARKive: http://www.arkive.org/ring-tailed-lemur/lemur-catta/ Duke Lemur Center: http://lemur.duke.edu/discover/meet-the-lemurs/ring-tailedlemur/ IUCN: Lemurs of Madagascar: A Strategy for their Conservation 2013-2016. Schwitzer et al. 2013. Retrieved from: http://www.primatesg.org/storage/pdf/Lemurs_of_Madagascar_Strategy_for_Their_Conservation_2013201 6_low_res.pdf The IUCN Red List of Threatened Species: http://www.iucnredlist.org/details/11496/0 Mittermeier, R.A., et al. (2010). Lemurs of Madagascar 3rd Edition. Arlington, VA: Conservation International. Ring Tailed Lemur Species Survival Plan: http://www.ringtailedlemurssp.org/default.html The University of Michigan’s Animal Diversity Web: http://animaldiversity.ummz.umich.edu/accounts/Lemur_catta/ The University of Wisconsin’s Primate Info Net: http://pin.primate.wisc.edu/factsheets/entry/ring-tailed_lemur The Maryland Zoo in Baltimore February 2014