Species abundance distributions should underpin ordinal cover‐abundance transformations
نویسندگان
چکیده
منابع مشابه
Species abundance distributions over time.
It has been known for 50 years that the time period over which data are collected affects the shape of empirical species abundance distributions. However, despite a recent resurgence of interest in characterizing and explaining these patterns the temporal component of species abundance distributions has been largely ignored. I argue that it is essential to take account of time, and not only bec...
متن کاملTaking species abundance distributions beyond individuals.
The species abundance distribution (SAD) is one of the few universal patterns in ecology. Research on this fundamental distribution has primarily focused on the study of numerical counts, irrespective of the traits of individuals. Here we show that considering a set of Generalized Species Abundance Distributions (GSADs) encompassing several abundance measures, such as numerical abundance, bioma...
متن کاملSpatial scaling of species abundance distributions
Luís Borda-de-Água ([email protected]) and H. M. Pereira, Centro de Biologia Ambiental, Faculdade de Ciências, Univ. de Lisboa, PT-1749-016 Lisboa, Portugal, HMP also at: Depto de Engenharia Civil e Arquitectura, Inst. Superior Técnico, PT-1049 001 Lisboa, Portugal. – P. A. V. Borges, Azorean Biodiversity Group (CITA-A), Univ. dos Açores, Angra do Heroísmo, PT-9700 Angra do Heroísmo, Azores, Por...
متن کاملHow selection structures species abundance distributions
How do species divide resources to produce the characteristic species abundance distributions seen in nature? One way to resolve this problem is to examine how the biomass (or capacity) of the spatial guilds that combine to produce an abundance distribution is allocated among species. Here we argue that selection on body size varies across guilds occupying spatially distinct habitats. Using an ...
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Quantifying biodiversity aspects such as species presence/ absence, richness and abundance is an important challenge to answer scientific and resource management questions. In practice, biodiversity can only be assessed from biological material taken by surveys, a difficult task given limited time and resources. A type of random sampling, or often called sub-sampling, is a commonly used techniq...
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ژورنال
عنوان ژورنال: Applied Vegetation Science
سال: 2019
ISSN: 1402-2001,1654-109X
DOI: 10.1111/avsc.12437