Results 41 to 50 of about 297,362 (295)

Unimodal Relationships of Understory Alpha and Beta Diversity along Chronosequence in Coppiced and Unmanaged Beech Forests [PDF]

open access: yes, 2020
Patterns of diversity across spatial scales in forest successions are being overlooked, despite their importance for developing sustainable management practices. Here, we tested the recently proposed U-shaped biodiversity model of forest succession.
Giandiego Campetella   +7 more
core   +1 more source

Environmental filtration and dispersal limitation explain different aspects of beta diversity in desert plant communities

open access: yesGlobal Ecology and Conservation, 2022
Environmental filtration and spatial processes are associated with variation in ecological communities and biodiversity; however, their relative importance to species beta diversity at different sampling scales has not been fully explored in desert plant
Dong Hu   +5 more
doaj   +1 more source

Boosted Beta regression. [PDF]

open access: yes, 2013
Regression analysis with a bounded outcome is a common problem in applied statistics. Typical examples include regression models for percentage outcomes and the analysis of ratings that are measured on a bounded scale.
Andreas Mayr (406146)   +18 more
core   +1 more source

Change in beta diversity of riverine fish during and after supra-seasonal drought

open access: yes, 2022
Context A core theme in ecohydrology is understanding how hydrology affects spatial variation in the composition of species assemblages (i.e., beta diversity).
Chessman, Bruce C.   +14 more
core   +1 more source

N90, a Diversity Index Sensitive to Variations in Beta Diversity Components [PDF]

open access: yesDiversity, 2021
Species diversity in a community is mainly related to the number and abundance of species that form it. N90 is a recently developed diversity index based on the results of the similarity percentage (SIMPER) analysis that represents the number of species contributing up to ninety percent of within-group similarity in a group of samples.
M. Teresa Farriols   +2 more
openaire   +3 more sources

Trophic level and host specialisation affect beta-diversity in plant-herbivore-parasitoid assemblages

open access: yes, 2020
Herbivorous insects that feed internally on plant tissues depend on their host plants as food resource and immediate habitat. The parasitoids of these herbivores, in turn, depend both on their host herbivores and on the herbivores' host plants.
Lewinsohn, Thomas M.   +3 more
core   +1 more source

β-diversity of deep-sea holothurians and asteroids along a bathymetric gradient (NE Atlantic) [PDF]

open access: yes, 2014
Measuring and understanding patterns of ?-diversity remain major challenges in community ecology. Recently, ?-diversity has been shown to consist of 2 distinct components: (1) spatial turnover and (2) species loss leading to nestedness.
Howell, K.L.   +8 more
core   +1 more source

Explaining the anuran beta diversity by pond‐living tadpoles: the role of dispersal limitation and environmental gradients through multiple scales

open access: yes, 2023
Aim: Determining drivers of beta diversity is a hugely complex task, as it involves processes acting synergistically across multiple scales. We employed a large-scale standardized protocol to tease apart the environmental and spatial processes driving ...
Gonçalves-Souza, Thiago   +13 more
core   +1 more source

Patterns in Alpha and Beta Phytoplankton Diversity along a Conductivity Gradient in Coastal Mediterranean Lagoons

open access: yes, 2020
Understanding the diversity patterns of phytoplankton assemblages in coastal lagoons is clearly important for water management. In this study, we explored alpha and beta diversity patterns in phytoplankton communities across five Mediterranean lagoons ...
Maria Moustaka-Gouni   +5 more
core   +1 more source

Undersampling and the measurement of beta diversity

open access: yesMethods in Ecology and Evolution, 2013
Summary Beta diversity is a conceptual link between diversity at local and regional scales. Various additional methodologies of quantifying this and related phenomena have been applied. Among them, measures of pairwise (dis)similarity of sites are particularly popular. Undersampling, i.e.
Beck, Jan   +2 more
openaire   +3 more sources

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