Southern woolly lemur

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Southern woolly lemur
CITES Appendix I (CITES) [2]
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Strepsirrhini
Family: Indriidae
Genus: Avahi
Species:
A. meridionalis
Binomial name
Avahi meridionalis
Zaramody et al., 2006 [3]
Avahi meridionalis range map.svg
Distribution of A. meridionalis [1]

The southern woolly lemur (Avahi meridionalis), or southern avahi, has been recently recognized as a separate species of woolly lemur in 2006 by Zaramody et al. [3] It is a nocturnal and pair-living species. Groups can range from 2 (the parental pair only) to 5 individuals (including the offspring of subsequent years). [4] A study in Sainte Luce forest revealed home range varied from 2.2 to 3.5 ha and that males can have larger home range and cover longer daily distances than females (which can spend more time feeding), in agreement with the territory defence and mate guarding hypotheses. [4]

Contents

Distribution

The species is restricted to the reserve of Andohahela and the area of Sainte Luce. Further studies are required to determine the exact distribution range and especially the limits with its sister species Peyrieras' woolly lemur (A. peyrierasi). [3] In southeastern littoral forests, sympatric lemur species of Avahi meridionalis are the brown mouse lemur (Microcebus rufus), the greater dwarf lemur (Cheirogaleus major), the fat-tailed dwarf lemur Cheirogaleus medius and the collared brown lemur (Eulemur collaris) in Sainte Luce Forest, [5] and the southern lesser bamboo lemur (Hapalemur meridionalis) in Mandena Forest. [6]

Description

Dorsal fur is grey-brown toning down to light grey distally, while ventrum is grey. The tail is red-brown and darkens distally. The southern woolly lemur has a mean weight of 1.2 kg (2.6 lb) for females and 1.1 kg (2.4 lb) for males, with a mean head-body length of 27 cm (11 in) and 25 cm (9.8 in) for females and males, respectively. [3]

Diet

Avahi meridionalis eats leaves (and buds) and, much more rarely, flowers and appears not to base food choice on abundance. [7] Avahi meridionalis can eat adult leaves with higher content of easily soluble protein (than non-food leaves) and switch, as soon as possible, on young leaves, richer in crude protein, and poorer in acid detergent fiber and sugar. [7] In Sainte Luce, A. meridionalis also ate leaves with condensed tannins, alkaloids, and intermediate concentrations of polyphenolics. Contrary to previous studies that considered Avahi spp. a specialist, A. meridionalis acted as leaf eating generalists with moderate selectivity, based on nutritional quality and tolerance of a wide array of plant secondary metabolites. [7]

Conservation

The southern woolly lemur lives primarily in fragments of south-eastern rain littoral forest of Madagascar (Mandena and Sainte Luce). Degradation level, more than fragment size, seems to affect density and birth rates of the populations of this species. [8]

Related Research Articles

<span class="mw-page-title-main">Cheirogaleidae</span> Family of lemurs

The Cheirogaleidae are the family of strepsirrhine primates containing the various dwarf and mouse lemurs. Like all other lemurs, cheirogaleids live exclusively on the island of Madagascar.

<span class="mw-page-title-main">Indriidae</span> Family of lemurs

The Indriidae are a family of strepsirrhine primates. They are medium- to large-sized lemurs, with only four teeth in the toothcomb instead of the usual six. Indriids, like all lemurs, live exclusively on the island of Madagascar.

<span class="mw-page-title-main">Lemuridae</span> Family of lemurs

Lemuridae is a family of strepsirrhine primates native to Madagascar and the Comoros. They are represented by the Lemuriformes in Madagascar with one of the highest concentration of the lemurs. One of five families commonly known as lemurs. These animals were once thought to be the evolutionary predecessors of monkeys and apes, but this is no longer considered correct. They are formally referred to as lemurids.

<span class="mw-page-title-main">Woolly lemur</span> Genus of lemurs

The woolly lemurs, also known as avahis or woolly indris, are nine species of strepsirrhine primates in the genus Avahi. Like all other lemurs, they live only on the island of Madagascar.

<span class="mw-page-title-main">Verreaux's sifaka</span> Species of lemur

Verreaux's sifaka, or the white sifaka, is a medium-sized primate in one of the lemur families, the Indriidae. It lives in Madagascar and can be found in a variety of habitats from rainforest to dry deciduous forests of western Madagascar and the spiny thickets of the south. Its fur is thick and silky and generally white with brown on the sides, top of the head, and on the arms. Like all sifakas, it has a long tail that it uses as a balance when leaping from tree to tree. However, its body is so highly adapted to an arboreal existence, on the ground its only means of locomotion is hopping. The species lives in small troops which forage for food.

<span class="mw-page-title-main">Eastern woolly lemur</span> Species of lemur

The eastern woolly lemur, also known as the eastern avahi or Gmelin's woolly lemur, is a species of woolly lemur native to eastern Madagascar, where it lives in the wet tropical rainforest at low elevations along the eastern coast of the island or they can also inhabit the northern tip of the island with other species. The woolly lemur name refers to their thick, tightly curled hair, whereas their generic name avahi refers to their high-pitched defensive call. The eastern woolly lemur almost has an owl-look with its large eyes, small rounded head, and ears that are mostly hidden. This nocturnal animal weighs 1.0–1.3 kg (2.2–2.9 lb) and reaches a length of 27–29 cm (11–11 in) with a tail of 33–37 cm (13–15 in). Its diet consists mainly of leaves and buds with fruits, flowers, and bark.

<span class="mw-page-title-main">Western woolly lemur</span> Species of lemur

The western woolly lemur or western avahi is a species of woolly lemur native to western Madagascar, where they live in dry deciduous forests. These nocturnal animals weigh 0.7–0.9 kg (1.5–2.0 lb). It is a folivorous species.

<span class="mw-page-title-main">Greater bamboo lemur</span> Species of lemur

The greater bamboo lemur, also known as the broad-nosed bamboo lemur and the broad-nosed gentle lemur, is a species of lemur endemic to the island of Madagascar.

<span class="mw-page-title-main">Eastern lesser bamboo lemur</span> Species of lemur

The eastern lesser bamboo lemur, also known as the gray bamboo lemur, the gray gentle lemur, and the Mahajanga lemur is a small lemur endemic to Madagascar, with three known subspecies. As its name suggests, the eastern lesser bamboo lemur feeds mainly on bamboo. The lemurs of the genus Hapalemur have more manual dexterity and hand–eye coordination than most lemurs. They are vertical climbers and jump from stalk to stalk in thick bamboo forests.

<span class="mw-page-title-main">Southern lesser bamboo lemur</span> Species of lemur

The southern lesser bamboo lemur, also known as the southern bamboo lemur, rusty-gray lesser bamboo lemur, and southern gentle lemur, is a species of bamboo lemur endemic to southern Madagascar.

<span class="mw-page-title-main">Collared brown lemur</span> Species of lemur

The collared brown lemur, also known as the red-collared brown lemur or red-collared lemur, is a medium-sized strepsirrhine primate and one of twelve species of brown lemur in the family Lemuridae. It is only found in south-eastern Madagascar. Like most species of lemur, it is arboreal, moving quadrupedally and occasionally leaping from tree to tree. Like other brown lemurs, this species is cathemeral, lives in social groups, primarily eats fruit, exhibits sexual dichromatism, and does not demonstrate female dominance. The species is listed as Endangered by the International Union for Conservation of Nature (IUCN) and is threatened primarily by habitat loss.

<span class="mw-page-title-main">Betsileo woolly lemur</span> Species of lemur

The Betsileo woolly lemur or Betsileo avahi is a species of woolly lemur native to southeastern Madagascar, in the District of Fandriana. The pelage differs significantly from other southeastern woolly lemurs in that it is primarily light reddish brown on most of the body and grey under the jaw and on the extremities. The pelage is thicker on the head than other eastern woolly lemurs.

<span class="mw-page-title-main">Peyrieras's woolly lemur</span> Species of lemur

Peyrieras's woolly lemur or Peyrieras's avahi is a species of woolly lemur native to southeastern Madagascar. It weighs about 1 kg.

<span class="mw-page-title-main">Ramanantsoavana's woolly lemur</span> Species of lemur

Ramanantsoavana's woolly lemur, also known as Ramanantsoavana's avahi or the Manombo woolly lemur, is a species of woolly lemur native to southeastern Madagascar. It weighs about 1 kg. It was originally considered a subspecies of the southern woolly lemur, A. m. ramanantsoavana, but was elevated to a separate species in 2006 based on molecular, phenotypic and morphological data.

Yves Rumpler, is a French researcher and primatologist. He was a professor of embryology and primatology at the Louis Pasteur University of Strasbourg until he retired in 2007.

<span class="mw-page-title-main">Sainte Luce Reserve</span>

Sainte Luce Reserve is a nature reserve in south-east Madagascar and part of one of the last remaining intact coastal rainforests in the country. The reserve is private, and has been managed by the Filana Association since 2010. It forms part of the greater Sainte Luce rainforest, which is approximately 15 km long and varies from 100m to 700m wide. The reserve itself is approximately 1 km long and averages 300m across.

<span class="mw-page-title-main">Mandena Conservation Zone</span> Conservation zone in Madagascar

Mandena Conservation Zone is a conservation zone in southeast Madagascar.

References

  1. 1 2 Donati, G.; Balestri, M.; Campera, M.; Norscia, I.; Ravoahangy, A. (2020). "Avahi meridionalis". IUCN Red List of Threatened Species . 2020: e.T136369A115582568. doi: 10.2305/IUCN.UK.2020-2.RLTS.T136369A115582568.en . Retrieved 19 November 2021.
  2. "Checklist of CITES Species". CITES. UNEP-WCMC. Retrieved 18 March 2015.
  3. 1 2 3 4 Zaramody, A.; Fausser, J.-L.; Roos, C.; Zinner, D.; Andriaholinirina, N.; Rabarivola, C.; Norscia, I.; Tattersall, I.; Rumpler, Y. (2006). "Molecular phylogeny and taxonomic revision of the eastern woolly lemur (Avahi laniger)" (PDF). Primate Report. 74: 9–22.
  4. 1 2 Norscia, I.; Borgognini-Tarli, S. M. (2008). "Ranging behavior and possible correlates of pair-living in southeastern avahis (Madagascar)". International Journal of Primatology. 29: 153–171. doi:10.1007/s10764-007-9219-4. S2CID   38431358.
  5. Bollen, A.; Donati, G. (2006). "Conservation status of the littoral forest of south-eastern Madagascar: A review". Oryx. 40: 57–66. doi: 10.1017/S0030605306000111 .
  6. Fausser, J. L.; Prosper, P.; Donati, G.; Ramanamanjato, J. B.; Rumpler, Y. (2002). "Phylogenetic relationships between Hapalemur species and subspecies based on mitochondrial DNA sequences". BMC Evolutionary Biology. 2: 4. doi: 10.1186/1471-2148-2-4 . PMC   101410 . PMID   11914128.
  7. 1 2 3 Norscia, I.; Ramanamanjato, J. B.; Ganzhorn, J. R. U. (2011). "Feeding Patterns and Dietary Profile of Nocturnal Southern Woolly Lemurs (Avahi meridionalis) in Southeast Madagascar". International Journal of Primatology. 33: 150–167. doi:10.1007/s10764-011-9562-3. S2CID   14395500.
  8. Norscia, I. (2008). "Pilot survey of avahi population (woolly lemurs) in littoral forest fragments of southeast Madagascar". Primates. 49 (1): 85–88. doi:10.1007/s10329-007-0061-2. PMID   17805480. S2CID   37074975.