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Scale, heterogeneity, and the structure and diversity of ecological communities [Libro electrónico] / Mark E. Ritchie

Por: Ritchie, Mark E [autor/a].
Tipo de material: Libro en línea Libro en línea Series Editor: Princeton: Princeton University Press, c2010Descripción: 229 páginas : ilustraciones ; 22 centímetros.ISBN: 069109070X; 0691090696; 9780691090696; 9780691090702; 9781400831685.Tema(s): Animales | Heterogeneidad ecológica | Biodiversity | Comunidades bióticas | Densidad de poblaciónNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Nota de bibliografía: Incluye bibliografía e índice: páginas 227-230 Número de sistema: 54848Contenidos:Mostrar Resumen:
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Understanding and predicting species diversity in ecological communities is one of the great challenges in community ecology. Popular recent theory contends that the traits of species are "neutral" or unimportant to coexistence, yet abundant experimental evidence suggests that multiple species are able to coexist on the same limiting resource precisely because they differ in key traits, such as body size, diet, and resource demand. This book presents a new theory of coexistence that incorporates two important aspects of biodiversity in nature--scale and spatial variation in the supply of limiting resources. Introducing an innovative model that uses fractal geometry to describe the complex physical structure of nature, Mark Ritchie shows how species traits, particularly body size, lead to spatial patterns of resource use that allow species to coexist. He explains how this criterion for coexistence can be converted into a "rule" for how many species can be "packed" into an environment given the supply of resources and their spatial variability. He then demonstrates how this rule can be used to predict a range of patterns in ecological communities, such as body-size distributions, species-abundance distributions, and species-area relations. Ritchie illustrates how the predictions closely match data from many real communities, including those of mammalian herbivores, grasshoppers, dung beetles, and birds. This book offers a compelling alternative to "neutral" theory in community ecology, one that helps us better understand patterns of biodiversity across the Earth.

Recurso en línea: http://www.jstor.org/stable/j.ctt7s46d
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Tipo de ítem Biblioteca actual Colección Signatura Estado Fecha de vencimiento Código de barras
Libros Biblioteca Electrónica
Recursos en línea (RE) 		Acervo General Recurso digital ECO400548484265

Incluye bibliografía e índice: páginas 227-230

Community ecology lives.. The geometry of heterogeneity.. Scaling relationships for the consumption of resources.. Food, resources, and scale-dependent niches.. Size structure in ecological guilds.. Heterogeneity and patterns of species diversity.. Biodiversity conservation in fractal landscapes.. Testing the model.. Perspectives, caveats, and conclusions

Disponible para usuarios de ECOSUR con su clave de acceso

Understanding and predicting species diversity in ecological communities is one of the great challenges in community ecology. Popular recent theory contends that the traits of species are "neutral" or unimportant to coexistence, yet abundant experimental evidence suggests that multiple species are able to coexist on the same limiting resource precisely because they differ in key traits, such as body size, diet, and resource demand. This book presents a new theory of coexistence that incorporates two important aspects of biodiversity in nature--scale and spatial variation in the supply of limiting resources. Introducing an innovative model that uses fractal geometry to describe the complex physical structure of nature, Mark Ritchie shows how species traits, particularly body size, lead to spatial patterns of resource use that allow species to coexist. He explains how this criterion for coexistence can be converted into a "rule" for how many species can be "packed" into an environment given the supply of resources and their spatial variability. He then demonstrates how this rule can be used to predict a range of patterns in ecological communities, such as body-size distributions, species-abundance distributions, and species-area relations. Ritchie illustrates how the predictions closely match data from many real communities, including those of mammalian herbivores, grasshoppers, dung beetles, and birds. This book offers a compelling alternative to "neutral" theory in community ecology, one that helps us better understand patterns of biodiversity across the Earth. eng

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