نتایج جستجو برای: phylogenetic diversity

تعداد نتایج: 241775  

2014
Bráulio A. Santos Marcelo Tabarelli Felipe P. L. Melo José L. C. Camargo Ana Andrade Susan G. Laurance William F. Laurance

Amazonian rainforests sustain some of the richest tree communities on Earth, but their ecological and evolutionary responses to human threats remain poorly known. We used one of the largest experimental datasets currently available on tree dynamics in fragmented tropical forests and a recent phylogeny of angiosperms to test whether tree communities have lost phylogenetic diversity since their i...

2014
Leandro Da Silva Duarte Rodrigo Scarton Bergamin Vinícius Marcilio-Silva Guilherme Dubal Dos Santos Seger Márcia Cristina Mendes Marques

Phylobetadiversity is defined as the phylogenetic resemblance between communities or biomes. Analyzing phylobetadiversity patterns among different vegetation physiognomies within a single biome is crucial to understand the historical affinities between them. Based on the widely accepted idea that different forest physiognomies within the Southern Brazilian Atlantic Forest constitute different f...

2017
Adriana De Palma Michael Kuhlmann Rob Bugter Simon Ferrier Andrew J Hoskins Simon G Potts Stuart P M Roberts Oliver Schweiger Andy Purvis

Aim Agricultural intensification and urbanization are important drivers of biodiversity change in Europe. Different aspects of bee community diversity vary in their sensitivity to these pressures, as well as independently influencing ecosystem service provision (pollination). To obtain a more comprehensive understanding of human impacts on bee diversity across Europe, we assess multiple, comple...

Journal: :Proceedings of the Royal Society B: Biological Sciences 2013

2009
Daniel P. Faith Catherine A. Lozupone David Nipperess Rob Knight

The PD measure of phylogenetic diversity interprets branch lengths cladistically to make inferences about feature diversity. PD calculations extend conventional species-level ecological indices to the features level. The "phylogenetic beta diversity" framework developed by microbial ecologists calculates PD-dissimilarities between community localities. Interpretation of these PD-dissimilarities...

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