Results 21 to 30 of about 667,124 (235)

Cold-water coral reef frameworks, megafaunal communities and evidence for coral carbonate mounds on the Hatton Bank, north east Atlantic [PDF]

open access: yes, 2008
Offshore banks and seamounts sustain diverse megafaunal communities, including framework reefs formed by cold-water corals. Few studies have quantified environmental effects on the alpha or beta diversity of these communities.
Hartley, J.P.   +3 more
core   +1 more source

Components of beta diversity in hierarchical sampling designs: A new approach [PDF]

open access: yes, 2013
Diversity partitioning has been generally used to estimate the contribution of different levels of sampling hierarchy to landscape diversity. However, beta diversity values derived by partitioning strongly depend on focus and sample size and the ...
Allen   +60 more
core   +1 more source

Spatial Factors Play a Major Role as Determinants of Endemic Ground Beetle Beta Diversity of Madeira Island Laurisilva [PDF]

open access: yes, 2013
The development in recent years of new beta diversity analytical approaches highlighted valuable information on the different processes structuring ecological communities.
Aguiar, Carlos A. S.   +10 more
core   +3 more sources

Chytrid epidemics may increase genetic diversity of a diatom spring-bloom [PDF]

open access: yes, 2013
Contrary to expectation, populations of clonal organisms are often genetically highly diverse. In phytoplankton, this diversity is maintained throughout periods of high population growth (that is, blooms), even though competitive exclusion among ...
A De Bruin   +22 more
core   +3 more sources

Beta diversity patterns derived from island biogeography theory [PDF]

open access: yesThe American Naturalist, 2018
AbstractThe Theory of Island Biogeography (TIB) has been successful in predicting alpha diversity patterns such as species-area relationships and species-abundance distributions. Although beta diversity (i.e. the dissimilarity of community composition) has long been recognized as an important element of the TIB and is crucial for understanding ...
Lu, Muyang, Vasseur, David, Jetz, Walter
openaire   +2 more sources

A comparative analysis reveals weak relationships between ecological factors and beta diversity of stream insect metacommunities at two spatial levels. [PDF]

open access: yes, 2016
The hypotheses that beta diversity should increase with decreasing latitude and increase with spatial extent of a region have rarely been tested based on a comparative analysis of multiple datasets, and no such study has focused on stream insects.
Al-Shami, Salman A.   +30 more
core   +1 more source

Diet contributes to urban-induced alterations in gut microbiota : experimental evidence from a wild passerine [PDF]

open access: yes, 2020
Urban sprawl increasingly affects the ecology of natural populations, including host-microbiota interactions, with observed differences in the gut microbiota between urban and rural hosts.
De Neve, Liesbeth   +5 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Spatial Scaling in Model Plant Communities

open access: yes, 2005
We present an analytically tractable variant of the voter model that provides a quantitatively accurate description of beta-diversity (two-point correlation function) in two tropical forests.
Amos Maritan   +13 more
core   +1 more source

Does functional soil microbial diversity contribute to explain within-site plant beta-diversity in an alpine grassland and a dehesa meadow in Spain? [PDF]

open access: yes, 2017
Questions: Once that the effects of hydrological and chemical soil properties have been accounted for, does soil microbial diversity contribute to explain change in plant community structure (i.e. within-site beta-diversity)?
Araya, Yoseph N.   +4 more
core   +2 more sources

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