Population Genetic Structure Of Understory Birds In A Fragmented Tropical Rainforest
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Population Genetic Structure Of Understory Birds In A Fragmented Tropical Rainforest
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Author : Laura MacAlister Brown
language : en
Publisher:
Release Date : 2000
Population Genetic Structure Of Understory Birds In A Fragmented Tropical Rainforest written by Laura MacAlister Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Birds categories.
Issues In Genomics And Non Human Genetic Research 2013 Edition
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language : en
Publisher: ScholarlyEditions
Release Date : 2013-05-01
Issues In Genomics And Non Human Genetic Research 2013 Edition written by and has been published by ScholarlyEditions this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-01 with Science categories.
Issues in Genomics and Non-Human Genetic Research: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about Genetic Research. The editors have built Issues in Genomics and Non-Human Genetic Research: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Genetic Research in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Genomics and Non-Human Genetic Research: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
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Author :
language : en
Publisher: Bib. Orton IICA / CATIE
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written by and has been published by Bib. Orton IICA / CATIE this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 2000
Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Dissertations, Academic categories.
Tropical Forestry Handbook
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Author : Laslo Pancel
language : en
Publisher: Springer
Release Date : 2015-12-14
Tropical Forestry Handbook written by Laslo Pancel and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-14 with Technology & Engineering categories.
This book provides a cross-section of all outstanding experience in all fields of tropical forestry under a drastically changing environment induced by climate change. It sheds light on the existing know-how and presents it in a concise and efficient way for the scientist and professional in charge of planning, implementing and evaluating forest resources. The Tropical Forestry Handbook provides proven and/or promising alternative concepts which can be applied to solve organizational, administrative and technical challenges prevailing in the tropics. Presented are state of the art methods in all fields concerning tropical forestry. Emphasize is given to methods which are adapted to- and which safeguard - environmental conditions.
Ecology And Genetics Of Habitat Fragmentation In Spiders Of Hawaiian Kipukas
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Author : Amy Gretchen Vandergast
language : en
Publisher:
Release Date : 2002
Ecology And Genetics Of Habitat Fragmentation In Spiders Of Hawaiian Kipukas written by Amy Gretchen Vandergast and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Spiders categories.
The biological consequences of habitat fragmentation include changes in community structure, the genetic structure of populations, and species interactions. In the kipuka system, a network of forest fragments surrounded by historical lava flows on the Big Island of Hawaii, I investigated the long-term effects of fragmentation. I examined community structure and population genetic structure of a group of spiders in the genus Tetragnatha (Araneae: Tetragnathidae), and spider parasitism by a mermithid nematode (Nematoda: Mermithidae). Spider communities changed across the boundary between forest fragments and surrounding lava habitat, with a decrease in total species richness and diversity, coupled with a change in the dominant taxon from native Tetragnatha to native Cyclosa (Aranaidae). Severe habitat restrictions for some Tetragnatha species suggested that populations in kipukas may be genetically isolated from one another. I investigated the genetic structure of three Tetragnatha species with variation in population size and habitat specialization in kipukas (T. quasimodo, abundant generalist; T. anuenue, abundant forest specialist; T. brevignatha, rare forest specialist). Based on allozymes and mitochondrial COI, population subdivision among forest fragments was greater for forest specialists than for the generalist. For the specialists, T. brevignatha and T. anuenue, minimum estimates of gene flow among isolated fragments were 0.5 and 0 migrants per generation, respectively. However for the generalist, T. quasimodo, gene flow was high (& ge;20 migrants per generation), regardless of habitat fragmentation. Additionally, the evolutionary relationships among COI sequences were characterized for the three Tetragnatha species, using Tajima's D, a phylogenetic tree-building method, and nested clade analysis. Geographic associations among nested clades revealed evidence of a "volcano-hopping" colonization pattern in T. quasimodo and T. anuenue, and evidence of genetic subdivision in kipuka populations in T. anuenue. Both T. anuenue and T. brevignatha showed significantly negative estimates of Tajima's D, a signature of recent population expansion. These patterns suggest that geologic processes have affected the structure of populations across the Big Island and may be an integral component in the diversification of lineages in this group. Finally, the relationship between Tetragnatha spiders and parasitic mermithid nematodes was investigated. Based on a molecular analysis, Hawaiian spider mermithids appeared to be more closely related to a mainland Aranimeris species, a spider parasite, than to insect-infecting mermithids collected on Oahu and the mainland. In kipukas, parasitism was low (ranging from 0 to 4%) and the number of infected spiders differed significantly among forest fragments. The proportion of spiders parasitized was associated with fragment area, but not with spider density or species richness, suggesting that mermithids are sensitive to habitat fragmentation, but that changes in rates of parasitism do not affect spider community structure. In conclusion, overall results suggest that habitat fragmentation affects habitat specialists and generalists differently, as evident in community structure and population genetic structure. For Hawaiian Tetragnatha, the continual reshaping of the Big Island landscape due to volcanic activity is reflected in the genetic structure of populations, suggesting a link between island geology and micro-evolutionary processes within this group
Chemical Abstracts
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Author :
language : en
Publisher:
Release Date : 2002
Chemical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Chemistry categories.
The Ecology Of Seeds
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Author : Michael Fenner
language : en
Publisher: Cambridge University Press
Release Date : 2005-02-24
The Ecology Of Seeds written by Michael Fenner and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-02-24 with Science categories.
What determines the number and size of the seeds produced by a plant? How often should it reproduce them? How often should a plant produce them? Why and how are seeds dispersed, and what are the implications for the diversity and composition of vegetation? These are just some of the questions tackled in this wide-ranging review of the role of seeds in the ecology of plants. The authors bring together information on the ecological aspects of seed biology, starting with a consideration of reproductive strategies in seed plants and progressing through the life cycle, covering seed maturation, dispersal, storage in the soil, dormancy, germination, seedling establishment, and regeneration in the field. The text encompasses a wide range of concepts of general relevance to plant ecology, reflecting the central role that the study of seed ecology has played in elucidating many fundamental aspects of plant community function.
Seeds 3rd Edition
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Author : Robert S Gallagher
language : en
Publisher: CABI
Release Date : 2013-12-06
Seeds 3rd Edition written by Robert S Gallagher and has been published by CABI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-06 with Technology & Engineering categories.
The 3rd edition of Seeds: The Ecology of Regeneration in Plant Communities highlights the many advances in the field of seed ecology and its relationship to plant community dynamics that have taken place in recent years. The new edition also features chapters on seed development and morphology, seed chemical ecology, implications of climate change on regeneration by seed, and the functional role of seed banks in agricultural and natural ecosystems. The book is aimed at advanced level students and researchers in the fields of seed science, seed ecology and plant ecology.
Conservation Of Wildlife Populations
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Author : L. Scott Mills
language : en
Publisher: John Wiley & Sons
Release Date : 2012-10-04
Conservation Of Wildlife Populations written by L. Scott Mills and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-10-04 with Science categories.
Population ecology has matured to a sophisticated science with astonishing potential for contributing solutions to wildlife conservation and management challenges. And yet, much of the applied power of wildlife population ecology remains untapped because its broad sweep across disparate subfields has been isolated in specialized texts. In this book, L. Scott Mills covers the full spectrum of applied wildlife population ecology, including genomic tools for non-invasive genetic sampling, predation, population projections, climate change and invasive species, harvest modeling, viability analysis, focal species concepts, and analyses of connectivity in fragmented landscapes. With a readable style, analytical rigor, and hundreds of examples drawn from around the world, Conservation of Wildlife Populations (2nd ed) provides the conceptual basis for applying population ecology to wildlife conservation decision-making. Although targeting primarily undergraduates and beginning graduate students with some basic training in basic ecology and statistics (in majors that could include wildlife biology, conservation biology, ecology, environmental studies, and biology), the book will also be useful for practitioners in the field who want to find - in one place and with plenty of applied examples - the latest advances in the genetic and demographic aspects of population ecology. Additional resources for this book can be found at: www.wiley.com/go/mills/wildlifepopulations.