RECONCILING EMPIRICAL ECOLOGY WITH NEUTRAL COMMUNITY MODELS
نویسندگان
چکیده
منابع مشابه
Reconciling empirical ecology with neutral community models.
Neutral community models embody the idea that individuals are ecologically equivalent, having equal fitness over all environmental conditions, and describe how the spatial dynamics and speciation of such individuals can produce a wide range of patterns of distribution, diversity, and abundance. Neutral models have been controversial, provoking a rush of tests and comments. The debate has been s...
متن کاملNeutral theory and community ecology
J. Chave Laboratoire Evolution et Diversité Biologique, CNRS and Université Paul Sabatier, bâtiment 4R3, 118 route de Narbonne, F-31062 Toulouse, France Correspondence: E-mail: [email protected] Abstract I review the mathematical and biological aspects of Hubbell’s (2001) neutral theory of species abundance for ecological communities, and clarify its historical connections with closely related appr...
متن کاملCoexistence of the niche and neutral perspectives in community ecology.
The neutral theory for community structure and biodiversity is dependent on the assumption that species are equivalent to each other in all important ecological respects. We explore what this concept of equivalence means in ecological communities, how such species may arise evolutionarily, and how the possibility of ecological equivalents relates to previous ideas about niche differentiation. W...
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An analytical approximation is derived for the Zero Sum Multinomial distribution which gives the Species Abundance Distribution in Neutral Community Models. The obtained distribution function describes well computer simulation results on the model, and leads to an interesting relation between the total number of individuals, total number of species and the size of the most abundant species of t...
متن کاملSelf-consistent approach for neutral community models with speciation.
Hubbell's neutral model provides a rich theoretical framework to study ecological communities. By incorporating both ecological and evolutionary time scales, it allows us to investigate how communities are shaped by speciation processes. The speciation model in the basic neutral model is particularly simple, describing speciation as a point-mutation event in a birth of a single individual. The ...
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ژورنال
عنوان ژورنال: Ecology
سال: 2006
ISSN: 0012-9658
DOI: 10.1890/0012-9658(2006)87[1370:reewnc]2.0.co;2