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Ian Tattersall - One of the best experts on this subject based on the ideXlab platform.
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Lemur Diversity in Madagascar
International Journal of Primatology, 2008Co-Authors: Russell A. Mittermeier, Jörg U. Ganzhorn, Ian Tattersall, Jonah Ratsimbazafy, Kenneth E. Glander, William R. Konstant, Colin P. Groves, Anthony B. Rylands, Andreas Hapke, Mireya I. MayorAbstract: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 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.
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do ruffed lemurs form a hybrid zone distribution and discovery of varecia with systematic and conservation implications
American Museum Novitates, 2002Co-Authors: Natalie Vasey, Ian TattersallAbstract:Abstract Since their discovery by Western explorers traveling to Madagascar in the 17th century, the ruffed lemurs have undergone numerous Taxonomic Revisions. During the 19th and 20th centuries, it was intermittently suggested that black-and-white and red ruffed lemurs hybridize in nature. Despite the fact that a natural hybrid zone has never been documented, this suggestion has played a large role in designating the two forms as subspecies of the single species Varecia variegata. Through a review and synthesis of historical documents, Taxonomic literature, museum collections, menagerie and zoo records, recent survey work, genetic data, and vocalization data, we examine the evidence for a natural hybrid zone and suggest Taxonomic Revisions. Our work indicates a more extensive hybrid zone than previously suggested—but one in which hybridization is the exception rather than the rule. Furthermore, our findings warrant upgrading the black-and-white ruffed lemur and the red ruffed lemur from subspecies to ful...
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Do ruffed lemurs form a hybrid zone? Distribution and discovery of Varecia, with systematic and conservation implications
2002Co-Authors: Natalie Vasey, Ian TattersallAbstract:Since their discovery by Western explorers traveling to Madagascar in the 17th century, the ruffed lemurs have undergone numerous Taxonomic Revisions. During the 19th and 20th cen-turies, it was intermittently suggested that black-and-white and red ruffed lemurs hybridize in nature. Despite the fact that a natural hybrid zone has never been documented, this suggestion has played a large role in designating the two forms as subspecies of the single species Varecia variegata. Through a review and synthesis of historical documents, Taxonomic literature, mu-seum collections, menagerie and zoo records, recent survey work, genetic data, and vocali-zation data, we examine the evidence for a natural hybrid zone and suggest Taxonomic revi-sions. Our work indicates a more extensive hybrid zone than previously suggested—but one in which hybridization is the exception rather than the rule. Furthermore, our findings warrant upgrading the black-and-white ruffed lemur and the red ruffed lemur from subspecies to full species, Varecia variegata (Kerr, 1792) and Varecia rubra (E. Geoffroy, 1812). Our results support the current captive breeding practices of U.S. and European zoos participating in the ruffed lemur ‘‘Species Survival Plan’ ’ and the ‘‘European Endangered Species Programme’’. Lastly, and possibly most importantly, we can now set specific geographic priorities for con-serving the habitat of these highly endangered lemurs in northern Madagascar
Ho Thu Cuc - One of the best experts on this subject based on the ideXlab platform.
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cryptic species of a cascade frog from southeast asia Taxonomic Revisions and descriptions of six new species
American Museum Novitates, 2003Co-Authors: Raoul H Bain, Amy Lathrop, Robert W Murphy, Nikolai L Orlov, Ho Thu CucAbstract:The Southeast Asian cascade frog, Rana livida (Blyth, 1856), has long been suspected to be a complex of species. Several different forms are described from across its vast range. The loss of type material and disparate sampling efforts are challenges. Is variability in this species due to geographic variation or to the presence of multiple species? We use concordant evidence from morphology, morphometrics, cellular DNA content, and allozyme electrophoresis to investigate diversity in R. livida from Vietnam. Three distinct species are recognized on the basis of morphology, as are four other suspect groups (morphotypes). Discriminant function analyses of morphometric data detect patterns of morphological variation among all seven groups. Pairwise comparison of cellular DNA content using t-tests shows significant differences among sympatric morphotypes, suggesting they represent distinct species. This hypothesis is supported by an analysis of 14 allozymic loci, in which fixed allelic differences are found among specimens in sympatry and allopatry. Examination of available type material of four junior synonyms of R. livida results in their recognition as species. One of these species, 1 Biodiversity Specialist, Center for Biodiversity and Conservation, and Division of Zoology (Herpetology), Amer
Bryan L Stuart - One of the best experts on this subject based on the ideXlab platform.
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hidden species diversity in sylvirana nigrovittata amphibia ranidae highlights the importance of Taxonomic Revisions in biodiversity conservation
PLOS ONE, 2018Co-Authors: Jennifer A Sheridan, Bryan L StuartAbstract:Accurately delimiting species and their geographic ranges is imperative for conservation, especially in areas experiencing rapid habitat loss. Southeast Asia currently has one of the highest rates of deforestation in the world, is home to multiple biodiversity hotspots, and the majority of its countries have developing economies with limited resources for biodiversity conservation. Thus, accurately delimiting species and their ranges is particularly important in this region. We examined genetic and morphological variation in the widespread frog species Sylvirana nigrovittata (and its long-treated junior synonym S. mortenseni) with the goal of clarifying its Taxonomic content and geographic range boundaries for conservation. We present evidence that the current concept of S. nigrovittata contains at least eight species, two of which are each known from only two localities, but that S. mortenseni is more geographically widespread than currently realized. Five of these species are described as new to science.
Catherine M Aime - One of the best experts on this subject based on the ideXlab platform.
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Taxonomic Revisions in the microstromatales two new yeast species two new genera and validation of jaminaea and two sympodiomycopsis species
Mycological Progress, 2017Co-Authors: Teeratas Kijpornyongpan, Catherine M AimeAbstract:Environmental sampling yielded two yeast species belonging to Microstromatales (Exobasidiomycetes, Ustilaginomycotina). The first species was collected from a leaf phylloplane infected by the rust fungus Coleosporium plumeriae, and represents a new species in the genus Jaminaea, for which the name Jaminaea rosea sp. nov. is proposed. The second species was isolated from air on 50% glucose media and is most similar to Microstroma phylloplanum. However, our phylogenetic analyses reveal that species currently placed in Microstroma are not monophyletic, and M. phylloplanum, M. juglandis and M. albiziae are not related to the type species of this genus, M. album. Thus, Pseudomicrostroma gen. nov. is proposed to accommodate the following species: P. glucosiphilum sp. nov., P. phylloplanum comb. nov. and P. juglandis comb. nov. We also propose Parajaminaea gen. nov. to accommodate P. albizii comb. nov. and P. phylloscopi sp. nov. based on phylogenetic analyses that show these are not congeneric with Jaminaea or Microstroma. In addition, we validate the genus Jaminaea, its respective species and two species of Sympodiomycopsis and provide a new combination, Microstroma bacarum comb. nov., for the anamorphic yeast Rhodotorula bacarum. Our results illustrate non-monophyly of Quambalariaceae and Microstromataceae as currently circumscribed. Taxonomy of Microstroma and the Microstromataceae is reviewed and discussed. Finally, analyses of all available small subunit rDNA sequences for Jaminaea species show that J. angkorensis is the only known species that possess a group I intron in this locus, once considered a potential feature indicating the basal placement of this genus in Microstromatales.
Raoul H Bain - One of the best experts on this subject based on the ideXlab platform.
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cryptic species of a cascade frog from southeast asia Taxonomic Revisions and descriptions of six new species
American Museum Novitates, 2003Co-Authors: Raoul H Bain, Amy Lathrop, Robert W Murphy, Nikolai L Orlov, Ho Thu CucAbstract:The Southeast Asian cascade frog, Rana livida (Blyth, 1856), has long been suspected to be a complex of species. Several different forms are described from across its vast range. The loss of type material and disparate sampling efforts are challenges. Is variability in this species due to geographic variation or to the presence of multiple species? We use concordant evidence from morphology, morphometrics, cellular DNA content, and allozyme electrophoresis to investigate diversity in R. livida from Vietnam. Three distinct species are recognized on the basis of morphology, as are four other suspect groups (morphotypes). Discriminant function analyses of morphometric data detect patterns of morphological variation among all seven groups. Pairwise comparison of cellular DNA content using t-tests shows significant differences among sympatric morphotypes, suggesting they represent distinct species. This hypothesis is supported by an analysis of 14 allozymic loci, in which fixed allelic differences are found among specimens in sympatry and allopatry. Examination of available type material of four junior synonyms of R. livida results in their recognition as species. One of these species, 1 Biodiversity Specialist, Center for Biodiversity and Conservation, and Division of Zoology (Herpetology), Amer
