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Neotropical Diversification: Patterns and Processes

2020-03-30 Science
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Release : 2020-03-30
Genre : Science
Kind : eBook
Book Rating : 678/5 ( reviews)

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Book Synopsis Neotropical Diversification: Patterns and Processes by : Valentí Rull

Download or read book Neotropical Diversification: Patterns and Processes written by Valentí Rull. This book was released on 2020-03-30. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the patterns of biodiversity in various neotropical ecosystems, as well as a discussion on their historical biogeographies and underlying diversification processes. All chapters were written by prominent researchers in the fields of tropical biology, molecular ecology, climatology, paleoecology, and geography, producing an outstanding collection of essays, synthetic analyses, and novel investigations that describe and improve our understanding of the biodiversity of this unique region. With chapters on the Amazon and Caribbean forests, the Atlantic rainforests, the Andes, the Cerrado savannahs, the Caatinga drylands, the Chaco, and Mesoamerica – along with broad taxonomic coverage – this book summarizes a wide range of hypotheses, views, and methods concerning the processes and mechanisms of neotropical diversification. The range of perspectives presented makes the book a truly comprehensive, state-of-the-art publication on the topic, which will fascinate both scientists and general readers alike.

Understanding Neotropical Diversification

2004
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Release : 2004
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Book Synopsis Understanding Neotropical Diversification by : Jose G. Tello

Download or read book Understanding Neotropical Diversification written by Jose G. Tello. This book was released on 2004. Available in PDF, EPUB and Kindle. Book excerpt:

Historical Biogeography of Neotropical Freshwater Fishes

2011-03-08 Science
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Release : 2011-03-08
Genre : Science
Kind : eBook
Book Rating : 505/5 ( reviews)

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Book Synopsis Historical Biogeography of Neotropical Freshwater Fishes by : James S. Albert

Download or read book Historical Biogeography of Neotropical Freshwater Fishes written by James S. Albert. This book was released on 2011-03-08. Available in PDF, EPUB and Kindle. Book excerpt: The fish faunas of continental South and Central America constitute one of the greatest concentrations of aquatic diversity on Earth, consisting of about 10 percent of all living vertebrate species. Historical Biogeography of Neotropical Freshwater Fishes explores the evolutionary origins of this unique ecosystem. The chapters address central themes in the study of tropical biodiversity: why is the Amazon basin home to so many distinct evolutionary lineages? What roles do ecological specialization, speciation, and extinction play in the formation of regional assemblages? How do dispersal barriers contribute to isolation and diversification? Focusing on whole faunas rather than individual taxonomic groups, this volume shows that the area’s high regional diversity is not the result of recent diversification in lowland tropical rainforests. Rather, it is the product of species accumulating over tens of millions of years and across a continental arena.

Dynamics of Speciation in Neotropical Birds

2017
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Release : 2017
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Book Synopsis Dynamics of Speciation in Neotropical Birds by : Paola Pulido-Santacruz

Download or read book Dynamics of Speciation in Neotropical Birds written by Paola Pulido-Santacruz. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: Tropical rainforests â covering 7% of the earth's surface â are areas of exceptionally high biodiversity compared to other ecosystems. However, no consensus has been reached as to the primal cause of high tropical diversity. In this thesis, I used a combination of phylogenetic and population genetic methods to address whether speciation is an important driver of diversification patterns and to determine the genetic architecture of reproductive isolation and the frequency of introgression during the diversification process in the species-rich Neotropics. I developed and fit a character-state dependent diversification model to a global avian phylogeny and found consistent support across replicate clades for extinction as a key driver of species richness gradients. In contrast, an association between speciation or dispersal rates with species richness was not consistently found. To better understand the process of speciation in the tropics, I studied reproductive isolation in two genera of suboscine birds. My results showed that pre-zygotic reproductive barriers play a less important role in the tropical speciation process than at high latitudes, with reproductive isolation driven largely by post-zygotic genetic incompatibilities. I also found evidence of frequent introgression events during the diversification process in the Neotropical genus Dendrocincla. My analyses showed different instances of historical introgression events among closely and distantly related lineages of Dendrocincla, demonstrating that introgression may often be a common phenomenon during the diversification process in the Neotropics. These results contribute to our understanding of the evolutionary processes that drive diversification and how speciation evolves in areas of high species richness.

Neotropical Owls

2017-07-24 Science
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Release : 2017-07-24
Genre : Science
Kind : eBook
Book Rating : 087/5 ( reviews)

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Book Synopsis Neotropical Owls by : Paula L. Enriquez

Download or read book Neotropical Owls written by Paula L. Enriquez. This book was released on 2017-07-24. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive biological and ecological information about owls in the neotropic area. In addition the book covers topics such as threats and conservation strategies for these nocturnal birds of prey from 18 Neotropical countries. Owls are a good example of diversification processes and have developed evolutionary characteristics themselves. These species are found almost everywhere in the world but most of them are distributed in tropical areas and about a third of them live in the Neotropics. This biogeographic region has a high biodiversity and even share lineages of species from other continents because at some point all were part of Pangea. Although we still have much to know and understand about this diverse, scarcely studied and threatened group this work aims to be a precedent for future and further research on the subject.

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