نتایج جستجو برای: bray methods
تعداد نتایج: 1875247 فیلتر نتایج به سال:
Disturbance is an important factor that shapes plant community structure in firedependent grasslands, and alteration of disturbance regimes can have large consequences on species richness and species composition. However, the response of vegetation to disturbance may change with environmental context. I re-sampled 59 permanent vegetation plots in the longleaf pine ecosystem twenty years after t...
In this volume Dr Bray-a former vice-president of the Royal Society for Tropical Medicine and Hygiene-seeks to show "that the course of history has been and can be affected by the major pandemics of infectious disease". "Practitioner history" generally enjoys low esteem in the eyes of medical historians, and-with some very distinguished exceptions-this is all too often justified by an anecdotal...
Abstract Hermit crabs community in the intertidal zones of Larak Island were investigated through a seasonal sampling at five stations using random quadrate sampling method. Overall, seven species were identified and Clibanarius signatus was the dominant species, which showed high dominance over other species. Using Bray-Curtis cluster analysis for comparing seasonal abundance showed that exce...
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