2007. Phyto- plankton diversity (alpha, beta, and gamma) from the Araguaia River tropical floodplain lakes (central Brazil). Hydrobiologia 557: 455-461.Nabout, J. C., Nogueira, I. S., Oliveira, L. G., and Morais, R. R. (2007). Phytoplankton diversity (alpha, beta, and gamma) ...
The latitudinal distribution patterns of alpha, beta and gamma diversity of reptiles, amphibians and herpetofauna were analyzed using individual binary models of potential distribution for 301 species predicted by ecological modelling for a grid of 9,932 quadrants of ~25 km2 each. We arranged ...
WHERE DOES ALL THE DIVERSITY GO AGAIN? A CENOZOIC PERSPECTIVE ON VARIATIONS IN ALPHA, BETA AND GAMMA DIVERSITY IN SHALLOW MARINE ENVIRONMENTSFluctuations in regional endemism and biogeographic similarity between regions appear related to the opening and closing of major oceanic gateways. Nevertheless some...
Species diversity may be additively partitioned within and among samples (alpha and beta diversity) from hierarchically scaled studies to assess the proportion of the total diversity (gamma) found in different habitats, landscapes, or regions. We developed a statistical approach for testing null hypoth...
Global patterns of regional (gamma) plant diversity are relatively well known, but whether these patterns hold for local communities, and the dependence on spatial grain, remain controversial. Using data on 170,272 georeferenced local plant assemblages,
Beta多样性:是生境之间的物种多样性,用以衡量群落之间的差别。 Gamma多样性:在一个地区内不同生境的总多样性。 ---BOX 1 END--- 跟宏基因组不一样的是,此概念不那么容易顾名思义。 什么是Alpha、Beta和Gamma多样性? 它们有什么区别? 感觉没那么容易搞清楚,上面字我...
additive partitioningalpha, beta, and gammadata simulationdiversity partitioningmultiplicative partitioningstatistical independenceEcology. 2010 Jul;91(7):1969-74. ... J Lou - 《Ecology》 被引量: 170发表: 2010年 Multiplicative partition of true diversity yields independent alpha and beta components; addi...
Beta多样性(β多样性),即在一个梯度上从一个生境到另一个生境所发生的种的多样性变化的速率和范围。它是研究群落之间的种多度关系。 Gamma多样性(γ多样性),即在一个地理区域内(例如一个岛屿)一系列生境中种的多样性。它通过这些生境的α多样性和生境之间的β多样性的研究范围结合起来表示。
Alpha (α) keratins are found in all vertebrates, while beta (β) keratins are found exclusively in reptiles and birds. We have studied the molecular evolution of these gene families in the genomes of 48 phylogenetically diverse birds and their expression in the scales and feathers of the ...
“hits” that everyone associates with thename. However, there always are a number ofworks that make one stop and say, “I’d forgot-ten that he / she / they had done this one, too.”Jack Sepkoski’s “Alpha, Beta, or Gamma: WhereDoes All the Diversity Go?” represents justsuch a...