Exceptional diversity of mouse lemurs (Microcebus spp.) in the Makira region with the description of one new species

  title={Exceptional diversity of mouse lemurs (Microcebus spp.) in the Makira region with the description of one new species},
  author={Ute Radespiel and G. Olivieri and David W. Rasolofoson and Gilbert Rakotondratsimba and Odon Rakotonirainy and Solofonirina Rasoloharijaona and Blanchard Randrianambinina and Jonah Ratsimbazafy and Felix Ratelolahy and Tahirihasina M. Randriamboavonjy and Tovonanahary Rasolofoharivelo and Mathias Craul and Lucien M.-A. Rakotozafy and Rose Marie Randrianarison},
  journal={American Journal of Primatology},
Although the number of described lemur species has increased considerably over the last 20 years, detailed biogeographic data are still lacking from many geographic regions, in particular in the eastern part of Madagascar. This study investigated mouse lemur species diversity in a previously unstudied Inter‐River‐System in the eastern Makira region. Three sites were visited and 26 individuals were sampled and characterized with 13 external morphometric measurements. Standard phylogenetic… 

Ecology and morphology of mouse lemurs (Microcebus spp.) in a hotspot of microendemism in northeastern Madagascar, with the description of a new species

Delimitation of cryptic species is increasingly based on genetic analyses but the integration of distributional, morphological, behavioral, and ecological data offers unique complementary insights

Revision of the Mouse Lemurs, Microcebus (Primates, Lemuriformes), of Northern and Northwestern Madagascar with Descriptions of Two New Species at Montagne d'Ambre National Park and Antafondro Classified Forest

The Inter-River-System hypothesis concerning the biogeographic patterns of the distributions of the northern and northwestern mouse lemurs is revised according to the findings concerning the two species described here.

Genetic and morphological diversity of mouse lemurs (Microcebus spp.) in northern Madagascar: The discovery of a putative new species?

It is shown that the spatial distribution of forest‐dwelling species may be used as a proxy to reconstruct the past spatial changes in forest cover and vegetation type, and a significant correlation between climatic variables and morphology is suggested, suggesting a possible relationship between species identity, morphology, and environment.

Complex processes of cryptic speciation in mouse lemurs from a micro-endemism hotspot in Madagascar

This study focuses on a conservation hotspot in northeastern Madagascar where at least five species of mouse lemur occur, some of them in sympatry, and describes one of them, M. jonahi, as new to science and is accompanied by a complete genome.

Ecological separation of two sympatric species of Microcebus spp. E. Geoffroy, 1812 in southern Madagascar

Co-occurrence of these congeneric species appears to be allowed through microhabitat differentiation and different degrees of insectivory, during the lean season, M. griseorufus eat more insects than M. murinus, while M. Murinus is associated with more mesic conditions.

Distribution and Morphological Variation of Microcebus spp. Along an Environmental Gradient in Southeastern Madagascar

The results confirm the importance of ecotones as species boundaries as a condition postulated for the radiation of lemur and other species on Madagascar and demonstrate different habitat affinities of seemingly very similar lemur species.

Genetic Differentiation and Demographic History of the Northern Rufous Mouse Lemur (Microcebus tavaratra) Across a Fragmented Landscape in Northern Madagascar

The authors' analyses suggest that M. tavaratra holds average genetic diversity when compared to other mouse lemur species, and two to four genetic clusters in the study region, a pattern similar to that observed in another lemur endemic to the region (Propithecus tattersalli).

Abundance and conservation status of two newly described lemur species in northwestern Madagascar ( Microcebus danfossi, Lepilemur grewcockorum )

Based on the abundance data, the size and the general condition of the fragments, the forests of Anjajavy, Ambarijeby and Bekofafa are most favorable for future protection, because they still contain the most intact nocturnal lemur communities.

Cryptic patterns of speciation in cryptic primates: microendemic mouse lemurs and the multispecies coalescent

It is found that incorporating gene flow into the MSC can greatly affect divergence time estimates, and it is concluded that a previously identified mitochondrial lineage warrants full species status, and is named M. jonahi.



Remarkable species diversity in Malagasy mouse lemurs (primates, Microcebus).

Phylogenetic analysis of mtDNA sequence data confirms the observation that species diversity in the world's smallest living primate (genus Microcebus) has been greatly underestimated and revises established hypotheses of ecogeographic constraint for the maintenance of species boundaries in these endemic Malagasy primates.

Taxonomic Revision of Mouse Lemurs (Microcebus) in the Western Portions of Madagascar

Seven species of Microcebus from western Madagascar are recognized, including a previously synonymized species, and 3 spp.

The ever-increasing diversity in mouse lemurs: three new species in north and northwestern Madagascar.

Large rivers do not always act as species barriers for Lepilemur sp.

The phylogenetic reconstruction did not find support for either of the two rivers in northeastern Madagascar as species barrier for Lepilemur, and the results suggest that L. seali may possess a relatively large altitudinal range that enabled this species to migrate around the headwaters of the Antainambalana and Rantanabe Rivers.

Revision of the Mouse Lemurs (Microcebus) of Eastern Madagascar

It is shown that the general distribution of Microcebus is based on a traditional eastern/western division, and the preliminary model appears strongly influenced by both rivers and altitudinal differences acting independently as barriers.

Molecular phylogeny and taxonomic revision of the sportive lemurs (Lepilemur, Primates)

The results support the classification of the eight major sportive lemur taxa as independent species and indicate further cryptic speciation events within L. ruficaudatus and L. dorsalis.

MtDNA reveals strong genetic differentiation among geographically isolated populations of the golden brown mouse lemur, Microcebus ravelobensis

The results clearly indicate that M.ravelobensis consists of three evolutionary significant units, possibly cryptic species, which warrant urgent and separate conservation efforts.

Molecular and morphological analyses of the sportive lemurs (Family Megaladapidae: Genus Lepilemur) reveals 11 previously unrecognized species /

The phylogenetic analyses presented confirm a westem/eastem split among the Lepilemur species with the exception of the Small-toothed Sportive Lemur found at Ranomafana and Tolongoina, which is included within the western clade.

Biogeographic Evolution of Madagascar's Microendemic Biota

An analysis of watersheds in the context of Quaternary climatic shifts provides a new mechanistic model to explain the process of explosive speciation on Madagascar and provides a framework for biogeographic and phylogeographic studies, as well as a basis for prioritizing conservation actions of the remaining natural forest habitats on the island.

Acoustically Dimorphic Advertisement Calls Separate Morphologically and Genetically Homogenous Populations of the Grey Mouse Lemur (Microcebus murinus)

It is postulate that differences in the acoustic pattern of the advertisement call of male mouse lemurs from two neighbouring demes in a dry deciduous forest of western Madagascar are comparable to dialects in birds, because demes were morphologically and genetically indistinguishable and no barrier prevented genetic exchange between them.