Results 331 to 340 of about 7,005,640 (397)

Rarefaction and extrapolation with Hill numbers: a framework for sampling and estimation in species diversity studies

Ecological Monographs, 2014
Quantifying and assessing changes in biological diversity are central aspects of many ecological studies, yet accurate methods of estimating biological diversity from sampling data have been elusive.
Anne Chao, Nicholas J Gotelli, Robert K Colwell   +2 more
exaly   +2 more sources

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Consistently positive effect of species diversity on ecosystem, but not population, temporal stability.

Ecology Letters, 2021
Despite much recent progress, our understanding of diversity-stability relationships across different study systems remains incomplete. In particular, recent theory clarified that within-species population stability and among-species asynchronous ...
Qianna Xu, Xian Yang, Yin Yan, Shaopeng Wang, M. Loreau, Lin Jiang   +5 more
semanticscholar   +1 more source

The Nonconcept of Species Diversity: A Critique and Alternative Parameters.

Ecology, 1971
The recent literature on species diversity contains many semantic, conceptual, and technical problems. It is suggested that, as a result of these problems, species diversity has become a meaningless concept, that the term be abandoned, and that ...
S. Hurlbert
semanticscholar   +1 more source

Mechanisms of Maintenance of Species Diversity

, 2000
▪ Abstract The focus of most ideas on diversity maintenance is species coexistence, which may be stable or unstable. Stable coexistence can be quantified by the long-term rates at which community members recover from low density.
P. Chesson
semanticscholar   +1 more source

Beyond species: functional diversity and the maintenance of ecological processes and services

Journal of Applied Ecology, 2011
Summary 1. The goal of conservation and restoration activities is to maintain biological diversity and the ecosystem services that this diversity provides.
Kelly A Carscadden, Marc W Cadotte
exaly   +2 more sources

Relationship between species diversity and ecotope diversity

Annals of the New York Academy of Sciences, 2010
The relationship between species diversity and ecotope diversity has long been debated. But these debates seem meaningless because most of them were based on different definitions. In this paper, diversity has two components: richness based on the total number and evenness based on the relative abundance.
Qiquan Li, Tianxiang Yue, Tianxiang Yue
openaire   +3 more sources

Predation and species diversity

Journal of Theoretical Biology, 1974
Except for doubtful interactions with interference competition and density-dependent extinction, equivalent predation cannot increase the number of species of prey.
openaire   +3 more sources

Species diversity or biodiversity?

Journal of Environmental Management, 2005
Species diversity and biodiversity are widely used terms in ecology and natural resource management. Despite this, they are not easily defined and different authors apply these terms with varying connotations. The term biodiversity, in particular, has the dubious honour of being widely used but rarely defined.
openaire   +3 more sources

On Bird Species Diversity

Ecology, 1961
Robert H. MacArthur, John W. MacArthur
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Ecological and Evolutionary Drivers of Geographic Variation in Species Diversity

, 2015
Recent studies have generated an explosion of phylogenetic and biogeographic data and have provided new tools to investigate the processes driving large-scale gradients in species diversity.
P. Fine
semanticscholar   +1 more source