Distribution of Lemurs in Central Western Madagascar, with a Regional Distribution Hypothesis

Thalmann, Urs; Rakotoarison, Nasolo

doi:10.1159/000156811

Cited by 42 publications

(51 citation statements)

References 5 publications

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“…Museum specimens from Ambararatabe are much darker than normal (Petter and Peyrieras, 1972;Tattersall, 1986). Chromatic variation has also been reported for P. v. coronatus in the Bongolava (Petter and Peyrieras, 1972), and to the south of the river Manambolo near Bekopaka, as well as at Katsepy on the Bay of Bombetoka, a pure white individual was sighted in a group of P. v. coronatus (Tattersall, 1982(Tattersall, , 1988Thalmann and Rakotoarison, 1994). No variation in coloration has been noted in the northernmost subspecies P. v. coquereli.…”

Section: Figure 2e (Right) P V Coronatus (P Miiller)mentioning

confidence: 84%

“…The face is black, the ears naked but largely hidden. The fur of many individuals is completely white (Figure 2d), while in others the back, limbs and, (Anon., 1986); Nicoll and Landgrand (1989); Thalmann and Rakotoarison (1994).…”

Section: Pmentioning

confidence: 99%

“…The situation in the Bongolava where the ranges of P. v. coronatus and P. v. deckeni meet remains enigmatic and more surveys are necessary before a better understanding can be reached (Thalmann and Rakotoarison, 1994). In view of the overall consistency of sightings of P. v. deckeni to the west of the Mahavavy and P. v. coronatus to the east, there does not at present appear to be any justifiable reason for disputing the subspecific status of P. v. coronatus.…”

Section: Surveys and Density Estimatesmentioning

confidence: 99%

“…In view of the overall consistency of sightings of P. v. deckeni to the west of the Mahavavy and P. v. coronatus to the east, there does not at present appear to be any justifiable reason for disputing the subspecific status of P. v. coronatus. Given the high conservation rating of 7 assigned by Mittermeier et al (1992), the implications for its conservation are dire if it continues to be regarded as belonging to the chromatically variable P. v. deckeni (Tattersall, 1988) and is not recognized as a subspecies in its own right: This lemur is highly threatened and is not known to be present in any protected area (Mittermeier et ah, 1992;Thalmann and Rakotoarison, 1994).…”

Section: Surveys and Density Estimatesmentioning

confidence: 99%

“…Observations of melanistic individuals in Decken's sifaka were made in the Bongolava, and museum specimens of a melanistic variant were collected by the [1929][1930][1931] Archbold Expedition at Ambararatabe (Figure 1; Petter and Peyrieras, 1972;Tattersall, 1986;Thalmann and Rakotoarison, 1994).…”

Section: Introductionmentioning

confidence: 99%

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Surveys on Propithecus verreauxi deckeni, a melanistic variant, and P. v. coronatus in north-west Madagascar

Curtis¹,

Velo

Raheliarisoa

et al. 1998

ORX

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Section: Figure 2e (Right) P V Coronatus (P Miiller)mentioning

confidence: 84%

Section: Pmentioning

confidence: 99%

Section: Surveys and Density Estimatesmentioning

confidence: 99%

Section: Surveys and Density Estimatesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Surveys on Propithecus verreauxi deckeni, a melanistic variant, and P. v. coronatus in north-west Madagascar

Curtis¹,

Velo

Raheliarisoa

et al. 1998

ORX

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Phylogenetic history of sifakas (Propithecus: Lemuriformes) derived from mtDNA sequences

2001

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The sifakas (Propithecus) include three species containing up to 10 described subspecies, whose evolutionary relationships remain contentious. In particular, it is unclear whether P. verreauxi deckeni and P.v. coronatus populations are differentiated at the subspecific level. Furthermore, the taxonomic status of the recently discovered P. tattersalli and its phylogenetic position also require further examination. About 2,400 bp of mitochondrial DNA sequence data from part of the COIII gene, together with complete genes for ND3, ND4L, ND4, and five tRNAs, were used to clarify relationships among Propithecus species and subspecies. All analyses group Avahi as the sister group to all sifakas. P. diadema is placed as a sister group to all other Propithecus. Among the remaining sifakas, one subclade is formed by P.v. coquereli and P. tattersalli, while P.v. verreauxi, P.v. deckeni, and P.v. coronatus form the second subclade. All analyses fail to resolve P.v. coronatus and P.v. deckeni into separate monophyletic lineages. Based on pairwise distance comparisons and tree topology, we conclude that P. tattersalli does not represent a distinct species and that P.v. deckeni and P.v. coronatus do not deserve subspecific rank. On the other hand, our analyses indicate that P.v. coquereli may well represent a separate species. Am. J. Primatol. 53:1–17, 2001. © 2001 Wiley‐Liss, Inc.

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New species of woolly lemurAvahi (primates: lemuriformes) in Bemaraha (Central Western Madagascar)

Thalmann¹,

Geissmann²

2005

Am. J. Primatol.

Self Cite

581

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There are at least three distinct taxa of woolly lemurs (genus Avahi) in western Madagascar. The range of Avahi occidentalis extends north and east of the Betsiboka River to the Bay of Narinda. Avahi unicolor occurs well to the north, including the Ampasindava peninsula and the Manongarivo Special Reserve. Here we describe a third Avahi population in central western Madagascar, which was discovered in the Bemaraha Strict Nature Reserve in the Tsingy de Bemaraha region, north of the Manambolo River. The description is based on a released type individual from which we obtained hair samples, photographs, and tape and video recordings. Its entire range is believed to be less than 5,000 km(2), and forest loss, along with an observed continuing decline in numbers, indicates that this species should be considered Endangered or even Critically Endangered, according to the Red List criteria of the World Conservation Union-IUCN.

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Distribution of Lemurs in Central Western Madagascar, with a Regional Distribution Hypothesis

Cited by 42 publications

References 5 publications

Surveys on Propithecus verreauxi deckeni, a melanistic variant, and P. v. coronatus in north-west Madagascar

Surveys on Propithecus verreauxi deckeni, a melanistic variant, and P. v. coronatus in north-west Madagascar

Phylogenetic history of sifakas (Propithecus: Lemuriformes) derived from mtDNA sequences

New species of woolly lemurAvahi (primates: lemuriformes) in Bemaraha (Central Western Madagascar)

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