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Phylogeography And Systematics Of The Slender Mouse Opossum Marmosops Marsupialia Didelphidae
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Book Synopsis Phylogeography and Systematics of the Slender Mouse Opossum Marmosops (Marsupialia, Didelphidae) by : Meika A. Mustrangi
Download or read book Phylogeography and Systematics of the Slender Mouse Opossum Marmosops (Marsupialia, Didelphidae) written by Meika A. Mustrangi and published by . This book was released on 1997 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph details molecular (DNA sequence) and morphological variation of slender mouse opposums of the genus Marmosops, a diverse but biologically poorly known group of insectivorous marsupials of the neotropical wet forests. Emphasis is placed on taxa of the Atlantic rainforest of coastal Brazil, with comparisons made to those of Amazonia. Lineages of these opossums are quite old, likely dating fromthe late Tertiary, and the acutal number of species in the genus is considerably higher than presently believed. Both of these findings are important to issues of meaasurement and management of biodiversity in threatened ecosystems.
Download or read book Opossums written by Robert S. Voss and published by Johns Hopkins University Press. This book was released on 2021-03-09 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peering into every biological facet of the lives of these long-neglected mammals, the volume includes; introductory chapters explaining the paleontological and biogeographic context for opossum evolution; an overview of the extant fauna, which includes over 100 species in 18 genera ; a section devoted to opossum phenotypes: morphology, physiology, and behavior; detailed information on opossum natural history, including habitats, diets, predators, and parasites; in-depth and novel interpretations of opossums' adaptive radiation in a phylogenetic contextIntended for undergraduate biology majors, graduate students, and research professionals, this coherent and original portrait of opossums will be of particular interest to mammalogists, evolutionary biologists, and Neotropical field biologists as well as biomedical researchers working with Monodelphis domestica as a model organism.
Book Synopsis An Introduction to Marmosops (Marsupialia: Didelphidae), with the Description of a New Species from Bolivia and Notes of the Taxonomy and Distribution of Other Bolivian Forms by : Robert S. Voss
Download or read book An Introduction to Marmosops (Marsupialia: Didelphidae), with the Description of a New Species from Bolivia and Notes of the Taxonomy and Distribution of Other Bolivian Forms written by Robert S. Voss and published by . This book was released on 2004 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Systematics of Mouse Opossums (Didelphidae, Marmosa) by : Eliécer E. Gutiérrez
Download or read book Molecular Systematics of Mouse Opossums (Didelphidae, Marmosa) written by Eliécer E. Gutiérrez and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genus Marmosa contains 15 currently recognized species, of which nine are referred to the subgenus Marmosa, and six to the subgenus Micoureus. Recent revisionary research based on morphological data, however, suggests that the subgenus Marmosa is more diverse than the currently accepted taxonomy indicates. Herein we report phylogenetic analyses of sequence data from the mitochondrial cytochrome-b gene representing 12 of the 14 morphologically defined taxa recently treated as valid species of Marmosa (Marmosa) in the aforementioned revisionary work. These data provide a basis for testing the monophyly of morphologically defined taxa in the subgenus Marmosa, and they afford the first opportunity to assess phylogenetic relationships among the majority of species currently referred to the genus. Ten of 11 species of Marmosa (Marmosa) represented by multiple sequences in our analyses were recovered as monophyletic. In contrast, our samples of M. mexicana were recovered as two deeply divergent haplogroups that were not consistently associated as sister taxa. Among other results, our analyses support the recognition of M. isthmica and M. simonsi as species distinct from M. robinsoni, and the recognition of M. macrotarsus and M. waterhousei as species distinct from M. murina. The validity of three other species long recognized as distinct (M. rubra, M. tyleriana, and M. xerophila) is also clearly supported by our results. Although cytochrome-b sequence data are not consistently informative about interspecific relationships in this study, we found strong support for several clades, including (1) the subgenus Micoureus; (2) a group comprised of Marmosa macrotarsus, M. murina, M. tyleriana, and M. waterhousei; (3) a group comprised of M. robinsoni and M. xerophila; and (4) a group comprising all of the species in the subgenus Marmosa that occur north and west of the Andes (M. isthmica, M. mexicana, M. robinsoni, M. simonsi, M. xerophila, and M. zeledoni). Our discovery of the latter clade suggests that the Andes may have played a major role in the early diversification of this speciose radiation of small Neotropical marsupials.
Book Synopsis Molecular Systematics of Mouse Opossums (Didelphidae, Marmosa) by :
Download or read book Molecular Systematics of Mouse Opossums (Didelphidae, Marmosa) written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phylogenetics and Biogeography of Mouse Opossums (Didelphidae: Marmosa) by : Eliecer Eduardo Gutierrez
Download or read book Phylogenetics and Biogeography of Mouse Opossums (Didelphidae: Marmosa) written by Eliecer Eduardo Gutierrez and published by . This book was released on 2012 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focused on the systematics and biogeography of mouse opossums of the genus Marmosa (Mammalia: Didelphimorphia: Didelphidae), with special emphasis on species found in the complicated geography of north-central South America. Via the four chapters of this dissertation, I presented information obtained through fieldwork, examination of museum specimens, DNA sequencing, phylogenetic analyses, georeferencing (including consultation of field notes and collectors), and ecological niche modeling. In Chapter 1, I conducted phylogenetic analyses of species of Marmosa based on sequence data of the mitochondrial cytochrome-b gene (CYTB), in part to test the monophyly of species previously recognized based on morphological criteria. This study revealed the existence of unrecognized species and identified novel interspecific relationships. All trans-Andean species of the subgenus Marmosa were recovered as a clade, suggesting that the uplift of the Andes might have played an important role in the diversification of the genus. In Chapter 2, I documented the presence of M. waterhousei in the Venezuelan Andes. This finding implied that the species might have crossed the dry Depresion del Tachira during a glacial period. In Chapter 3, I investigated the phylogeography of M. robinsoni , a species predominately distributed across the dry forests of northern South America. I conducted phylogenetic analyses based on sequence data of one mitochondrial and one nuclear gene. The results confirmed the monophyly of a dry-forest clade formed by M. robinsoni and M. xerophila and showed the existence of two major clades within M. robinsoni that corresponded roughly to an east/west division. Results of ancestral area reconstructions identified multiple dispersal events out of the greater Maracaibo basin. Lastly, in Chapter 4 I used ecological niche modeling to test the geographic predictions of competition between a sister species pair, M. robinsoni and M. xerophila . The results strongly suggest that M. xerophila may isolate populations of M. robinsoni in the Peninsula de Paraguana of northern Venezuela---representing a novel example of geographic isolation caused by competition. Together, these studies contributed to a better understanding of the taxonomy, phylogenetics, and biogeography of the genus Marmosa; provide novel information relevant to the biogeography of dry-forest species in northwestern South America; and propose a refinement of the concept of ecological vicariance to incorporate the possibility that biotic interactions could lead to geographic isolation.
Book Synopsis American and Australasian Marsupials by : Nilton C. Cáceres
Download or read book American and Australasian Marsupials written by Nilton C. Cáceres and published by Springer Nature. This book was released on 2023-06-30 with total page 1648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the evolution, biogeography, systematics, taxonomy, and ecology of New World and Australasian marsupials, greatly expanding the current knowledge base. There are roughly 140 species of New World marsupials, of which the opossum is the best known. Thanks to recent research, there is now an increasing amount of understanding about their evolution, biogeography, systematics, ecology, and conservation in the Americas, especially in South America. There are also some 270 marsupial species in the Australasian region, many of which have been subject to research only in recent years. Based on this information and the authors’ extensive research, this book provides comprehensive insights into the world's marsupials. It will appeal to academics and specialized researchers, students of zoology, paleontology, evolutionary biology, ecology, physiology and conservation as well as interested non-experts.
Book Synopsis Systematics, Biogeography, and Phylogeography of Thylamys Mouse Opossums, a Recent Radiation of Neotropical Marsupials by : Thomas Christopher Giarla
Download or read book Systematics, Biogeography, and Phylogeography of Thylamys Mouse Opossums, a Recent Radiation of Neotropical Marsupials written by Thomas Christopher Giarla and published by . This book was released on 2013 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phylogenetic Relationships of Mouse Opossums (Didelphidae, Marmosa) with a Revised Subgeneric Classification and Notes on Sympatric Diversity. (American Museum Novitates, No. 3817). by :
Download or read book Phylogenetic Relationships of Mouse Opossums (Didelphidae, Marmosa) with a Revised Subgeneric Classification and Notes on Sympatric Diversity. (American Museum Novitates, No. 3817). written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Introduction to Marmosops (Marsupialia, Didelphidae), with the Description of a New Species from Bolivia and Notes on the Taxonomy and Distribution of Other Bolivian Forms. American Museum Novitates by :
Download or read book An Introduction to Marmosops (Marsupialia, Didelphidae), with the Description of a New Species from Bolivia and Notes on the Taxonomy and Distribution of Other Bolivian Forms. American Museum Novitates written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A New Species of Marmosops (Marsupialia, Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna by : Robert S. Voss
Download or read book A New Species of Marmosops (Marsupialia, Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna written by Robert S. Voss and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new species of the didelphid marsupial genus Marmosops is described from the Pakaraima Highlands of western Guyana and from two highland sites in eastern Venezuela. All known specimens were collected on sandstone table mountains (eroded fragments of the Roraima Formation) in the eastern subregion of Pantepui. The new species, M. pakaraimae, is one of only seven mammals known to be endemic to Pantepui, and phylogenetic analyses of cytochrome-b sequence data indicate that its sister taxon is M. parvidens, a geographically adjacent lowland species. Our results, together with those from phylogenetic studies of other Pantepui endemic mammals, suggest that at least some of these highland taxa evolved from lowland species in the late Cenozoic and are neither ancient relicts of tepui vicariance nor the descendents of long-distance-dispersing Andean progenitors.
Book Synopsis A New Species of Marmosops (Marsupialia, Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna by : Robert S. Voss
Download or read book A New Species of Marmosops (Marsupialia, Didelphidae) from the Pakaraima Highlands of Guyana, with Remarks on the Origin of the Endemic Pantepui Mammal Fauna written by Robert S. Voss and published by . This book was released on 2013 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new species of the didelphid marsupial genus Marmosops is described from the Pakaraima Highlands of western Guyana and from two highland sites in eastern Venezuela. All known specimens were collected on sandstone table mountains (eroded fragments of the Roraima Formation) in the eastern subregion of Pantepui. The new species, M. pakaraimae, is one of only seven mammals known to be endemic to Pantepui, and phylogenetic analyses of cytochrome-b sequence data indicate that its sister taxon is M. parvidens, a geographically adjacent lowland species. Our results, together with those from phylogenetic studies of other Pantepui endemic mammals, suggest that at least some of these highland taxa evolved from lowland species in the late Cenozoic and are neither ancient relicts of tepui vicariance nor the descendents of long-distance-dispersing Andean progenitors.
Book Synopsis Phylogeography of Marmosops (Marsupialia, Didelphidae) in the Atlantic Forest in Brazil, and the Phylogenetic Relationships of the Atlantic Forest and Amazonian Species in the Genus by : Meika Alessandra Mustrangi
Download or read book Phylogeography of Marmosops (Marsupialia, Didelphidae) in the Atlantic Forest in Brazil, and the Phylogenetic Relationships of the Atlantic Forest and Amazonian Species in the Genus written by Meika Alessandra Mustrangi and published by . This book was released on 1995 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mammalian Diversification by : Eileen A. Lacey
Download or read book Mammalian Diversification written by Eileen A. Lacey and published by Univ of California Press. This book was released on 2005 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fourteen chapters by colleagues and former students celebrating the career of James L. Patton, the emeritus curator of mammals at the Museum of Vertebrate Zoology. All the papers deal with mammalian evolution.
Book Synopsis Predators with Pouches by : Menna Jones
Download or read book Predators with Pouches written by Menna Jones and published by CSIRO PUBLISHING. This book was released on 2003-04-30 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Predators with Pouches provides a unique synthesis of current knowledge of the world’s carnivorous marsupials—from Patagonia to New Guinea and North America to Tasmania. Written by 63 experts in each field, the book covers a comprehensive range of disciplines including evolution and systematics, reproductive biology, physiology, ecology, behaviour and conservation. Predators with Pouches reveals the relationships between the American didelphids and the Australian dasyurids, and explores the role of the marsupial fauna in the mammal community. It introduces the geologically oldest marsupials, from the Americas, and examines the fall from former diversity of the larger marsupial carnivores and their convergent evolution with placental forms. The book covers all aspects of carnivorous marsupials, including interesting features of life history, their unique reproduction, the physiological basis for early senescence in semelparous dasyurids, sex ratio variation and juvenile dispersal. It looks at gradients in nutrition—from omnivory to insectivory to carnivory—as well as distributional ecology, social structure and conservation dilemmas.
Book Synopsis Tropical Forest Remnants by : William F. Laurance
Download or read book Tropical Forest Remnants written by William F. Laurance and published by University of Chicago Press. This book was released on 1997-06-21 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: We live in an increasingly fragmented world, with islands of natural habitat cast adrift in a sea of cleared, burned, logged, polluted, and otherwise altered lands. Nowhere are fragmentation and its devastating effects more evident than in the tropical forests. By the year 2000, more than half of these forests will have been cut, causing increased soil erosion, watershed destabilization, climate degradation, and extinction of as many as 600,000 species. Tropical Forest Remnants provides the best information available to help us understand, manage, and conserve the remaining fragments. Covering geographic areas from Southeast Asia and Australia to Madagascar and the New World, this volume summarizes what is known about the ecology, management, restoration, socioeconomics, and conservation of fragmented forests. Thirty-three papers present results of recent research as well as updates from decades-long projects in progress. Two final chapters synthesize the state of research on tropical forest fragmentation and identify key priorities for future work.
