First Discovery of the Hairy-Eared Dwarf Lemur (Allocebus trichotis) in a Highland Rain Forest of Eastern Madagascar

Rakotoarison, Nasolo; Zimmermann, Helmut; Zimmermann, Elke

doi:10.1159/000157235

Cited by 26 publications

(28 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…; the presence of Hapalemur simus in Zahamena has recently been debated by Randriamanindry]. Allocebus trichotis has been described from Vohidrazana [20]. Due to geographical proximity, this species is also assumed to occur in the NP of Mantady and is listed as being present there.…”

Section: Methodsmentioning

confidence: 99%

Nested Patterns of Species Composition and Their Implications for Lemur Biogeography in Madagascar

Ganzhorn

1998

IJFP

View full text Add to dashboard Cite

Many communities with a common biogeographic history show a non-random pattern of species composition. When occupying similar habitats, communities with fewer species tend to represent nested subsets of communities with more species. Nestedness can come about by successive extinction of species from communities derived from a common species pool, or when species from the original species pool have different colonization abilities. In the first case extinction depends on site characteristics, but is independent of geographical location. In the second case, communities at sites close to the original species pool have more species in common with the original species pool than do more distant communities. The communities of evergreen rain forest lemur species in eastern Madagascar show a highly nested pattern, but there is no distance effect of species similarity among communities. This finding is consistent with the idea of a common species pool for the whole of eastern Madagascar, with selective extinction during fragmentation of forest during the Pleistocene. In contrast, the communities of dry deciduous forest lemur species in western Madagascar show a strong distance effect of species similarities, but show nested patterns only when the dataset is subdivided into northern and southern community subsets. This indicates a common pool of dry forest species which originated around Toliara and from there spread towards the north and the south.

show abstract

Section: Methodsmentioning

confidence: 99%

Nested Patterns of Species Composition and Their Implications for Lemur Biogeography in Madagascar

Ganzhorn

1998

IJFP

View full text Add to dashboard Cite

show abstract

“…Allocebus remains monotypic with the single species A. trichotis reported from quite distant locations Albignac, 1989, 1991;Rakotoarison, 1998;Rakotoarison et al, 1997;Schütz and Goodman, 1998]. …”

Section: Cheirogaleinae and Microcebusmentioning

confidence: 96%

Biodiversity, Phylogeography, Biogeography and Conservation: Lemurs as an Example

Thalmann¹

2007

IJFP

View full text Add to dashboard Cite

The lemurs of Madagascar represent a spectacular example of adaptive radiation among primates. Given the special setting under which they evolved (i.e. long isolation, geographical location, geological relief), they provide excellent models for study in many realms, and at different levels and scales, including diversity. At the same time, they occur in a ‘hottest hot spot’ region for biodiversity conservation. Although there is no single definition of biodiversity, the most commonly used units to measure biodiversity are species – species richness, species abundance and, for conservation purposes in particular, species endemism. However, what a species actually is or how, precisely, it should be defined are unresolved issues. Many species concepts have been proposed and several have been used in primatology in recent years. Nowadays, one of the more common approaches to measuring diversity, and eventually inferring species status, is to look at genetic diversity as reflected by mitochondrial DNA differences. Not enough attention has been paid, however, to the different levels at which genetic differences may occur. Lemurs provide instructive examples to highlight the questions involved in species recognition and definition. Using lemurs as examples, I will highlight the strengths and limitations of some analytical tools, including phylogeography and cladistic biogeography and, I will, in particular, emphasize the questions arising at the interface of scientific and conservation perceptions, both of which influence decisions in the field of biodiversity preservation.

show abstract

“…In 1965, A. Peyrieras captured individuals in the forest of Andranomahitsy, west of Mananara, but it was not until 1989 that Albignac (1989, 1991) found it again in the same forest and announced the rediscovery of the species. Over the next few years, field researchers suggested that the species had a restricted and patchy distribution (Mittermeier et al 1994(Mittermeier et al , 2006, but subsequent researchers have recorded its presence in the Mantadia, Masoala, Marojejy, and Verezantsoro National Parks, and the Analamazaotra and Anjanaharibe-Sud Special Reserves (Garbutt 2000;Rakotoarison 1998;Rakotoarison et al 1996;Schütz and Goodman 1998 Kappeler et al, 2005: Northern dwarf lemur Dwarf lemurs of the genus Mirza are medium-sized, omnivorous, and nocturnal. The preferred mode of locomotion is rapid quadrupedal running.…”

Section: Family Cheirogaleidae Gray 1873mentioning

confidence: 99%

Lemur Diversity in Madagascar

Mittermeier

Ganzhorn

Konstant³

et al. 2008

Int J Primatol

224

309

View full text Add to dashboard Cite

A basic understanding of the taxonomy, diversity, and distributions of primates is essential for their conservation. This review of the status of the taxonomy of lemurs is based on a 5-d workshop entitled "Primate Taxonomy for the New Millennium," held at the Disney Institute, Orlando, Florida, in February 2000. The aim is not to present a taxonomic revision, but to review our current understanding of the diversity and current and past ranges of lemurs and indicate where there is controversy, discrepancy, or lack of knowledge. Our goal therefore is to provide a baseline for future taxonomic investigation, as well as a clearer focus for research Int J Primatol (2008) and conservation priorities. We here focus on the lemurs of Madagascar and recognize 5 families, 15 genera, and 99 species and subspecies. We list 39 species of lemurs described since 2000: 2 dwarf lemurs, Cheirogaleus; 11 mouse lemurs, Microcebus; a giant mouse lemur, Mirza; a bamboo lemur, Hapalemur; 17 sportive lemurs, Lepilemur; and 7 woolly lemurs, Avahi. Taxonomic revisions have resulted in the resurrection of a further 9 taxa. However, the figures do not represent the total diversity of Malagasy lemurs because more new species are being identified via new field studies and accompanying genetic research, and should be described in the near future.

show abstract

First Discovery of the Hairy-Eared Dwarf Lemur (Allocebus trichotis) in a Highland Rain Forest of Eastern Madagascar

Cited by 26 publications

References 3 publications

Nested Patterns of Species Composition and Their Implications for Lemur Biogeography in Madagascar

Nested Patterns of Species Composition and Their Implications for Lemur Biogeography in Madagascar

Biodiversity, Phylogeography, Biogeography and Conservation: Lemurs as an Example

Lemur Diversity in Madagascar

Contact Info

Product

Resources

About