Global Patterns of Tree Species Richness in Moist Forests: Energy-Diversity Theory Does Not Account for Variation in Species Richness

Latham, Roger Earl; Ricklefs, Robert E.

doi:10.2307/3545479

Cited by 368 publications

(391 citation statements)

References 62 publications

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“…Composição florística e sua relação com a estrutura da comunidade dos pequenos mamíferos A teoria de comunidades estabelece que e a complexidade e a heterogeneidade ambiental determinam a diversidade e riqueza das espécies e que, além desses fatores, essa riqueza tende a aumentar em latitudes próximas aos trópicos (STEHLI et al 1969, LATHAM & RICKLEFS 1993, CODY 1993, WILLIG & GANNON 1997. Estudos com comunidades de mamíferos foram realizados tanto em zonas tropicais, quanto em zonas temperadas e muitos deles ainda buscam explicações para a riqueza e diversidade de espéci-es nas regiões mais próximas ao Equador.…”

Section: Discussionunclassified

Estrutura da comunidade de pequenos mamíferos (Mammalia, Rodentia) da Estação Ecológica de Águas Emendadas, Planaltina, Distrito Federal, Brasil

Ribeiro

Filho

2005

Rev. Bras. Zool.

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Foram investigadas, no presente estudo a composição de espécies e a abundância de uma comunidade de pequenos mamíferos presentes nos campos de murundus, um tipo fitofisionômico característico da região central dos Cerrados brasileiros. Duas grades de armadilhas do tipo Sherman foram montadas e oito espécies de roedores foram capturadas. Não foi registrada a presença de nenhum marsupial na região. As espécies mais abundantes foram Bolomys lasiurus (Lund, 1841), Thalpomys lasiotis Thomas, 1916 e Calomys tener (Winge, 1888). Durante a estação chuvosa, B. lasiurus foi a espécie mais abundante, ao contrário de T. lasiotis que apresentou maior número de indivíduos durante o período seco. Esta distinção com relação à abundância dos indivíduos dessas duas espécies pode ser um mecanismo de adaptação que permite a coexistência nos mesmos habitats.

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Section: Discussionunclassified

Estrutura da comunidade de pequenos mamíferos (Mammalia, Rodentia) da Estação Ecológica de Águas Emendadas, Planaltina, Distrito Federal, Brasil

Ribeiro

Filho

2005

Rev. Bras. Zool.

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“…Current estimates suggest the minimum number of tropical tree species in the world between 40,000 and 53,000 (Slik et al 2015). The number of tree species described globally for temperate forest is only 1166 (Latham and Ricklefs 1993). Also at smaller scale, tropical forests can contain an astonishing number of species.…”

Section: Coexistence Theory: Species Differ In Nichesmentioning

confidence: 99%

Chance, Variation and the Nature of Causality in Ecological Communities

Kroon

Jongejans

2016

The Frontiers Collection

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Chance is pervasive in nature. Erratic events such as storms and fires can cause major damage to an ecosystem. Rare successful long distance dispersal events like a viable seed landing in just the right habitat can form the stepping stone for range expansion of a plant species. Illustrated with two examples we argue that in ecology chance events are scale-dependent. We show how random stochastic variation in species interactions may result in relative stability at a higher community level. In other systems the reverse may take place, in which deterministic interactions result in unpredictable chaotic dynamics. Analysing the processes and dynamics at these different scales has led to an increasing mechanistic understanding of the variation in ecological communities in space and time. Unambiguous identification of cause and effect relations from this work is of the greatest importance, as many ecosystems in the world are not amenable to experimentation. This work should form the scientific basis for identifying the threats to ecosystems and defining proper conservation and mitigation measures.

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“…Analyses designed to distinguish local and regional influences on diversity have found strong region effects in some cases (8,22) and weak or nonexistent region effects in others (15,(23)(24)(25). However, most studies that failed to find significant region effects either have addressed large, biologically heterogeneous samples, or they have used local samples (e.g., 0.1-ha "Gentry" plots) that are too small to characterize the diversity of local assemblages adequately (26,27).…”

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confidence: 99%

Region effects influence local tree species diversity

Ricklefs

2016

Proc. Natl. Acad. Sci. U.S.A.

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109

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Global patterns of biodiversity reflect both regional and local processes, but the relative importance of local ecological limits to species coexistence, as influenced by the physical environment, in contrast to regional processes including species production, dispersal, and extinction, is poorly understood. Failure to distinguish regional influences from local effects has been due, in part, to sampling limitations at small scales, environmental heterogeneity within local or regional samples, and incomplete geographic sampling of species. Here, we use a global dataset comprising 47 forest plots to demonstrate significant region effects on diversity, beyond the influence of local climate, which together explain more than 92% of the global variation in local forest tree species richness. Significant region effects imply that large-scale processes shaping the regional diversity of forest trees exert influence down to the local scale, where they interact with local processes to determine the number of coexisting species.

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Global Patterns of Tree Species Richness in Moist Forests: Energy-Diversity Theory Does Not Account for Variation in Species Richness

Cited by 368 publications

References 62 publications

Estrutura da comunidade de pequenos mamíferos (Mammalia, Rodentia) da Estação Ecológica de Águas Emendadas, Planaltina, Distrito Federal, Brasil

Estrutura da comunidade de pequenos mamíferos (Mammalia, Rodentia) da Estação Ecológica de Águas Emendadas, Planaltina, Distrito Federal, Brasil

Chance, Variation and the Nature of Causality in Ecological Communities

Region effects influence local tree species diversity

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