Niche work
نویسندگان
چکیده
منابع مشابه
Niche Construction
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T his book, the latest in the excellent Monographs in Population Biology series from Princeton University Press, is a work of advocacy in which the authors argue that evolutionary theory is incomplete and that, in consequence, we are failing fully to understand phenomena as disparate as ecosystem development and the interplay of genes and culture in shaping human evolution. What we are missing,...
متن کاملNiche hypergraphs
If D = (V,A) is a digraph, its niche hypergraph NH(D) = (V, E) has the edge set E = {e ⊆ V | |e| ≥ 2 ∧ ∃v ∈ V : e = N− D (v) ∨ e = N + D (v)}. Niche hypergraphs generalize the well-known niche graphs (cf. [?]) and are closely related to competition hypergraphs (cf. [?]) as well as double competition hypergraphs (cf. [?]). We present several properties of niche hypergraphs of acyclic digraphs.
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1 Department of Ecology and Evolutionary Biology, University of Tennessee, 37996 Knoxville, Tennessee 2 BIOSS, King’s Buildings, EH93JZ Edinburgh, Scotland, UK (email: [email protected]) 3 Center for Theoretical Study, Charles University, Jilská 1, 110 00-CZ Praha 1, Czech Republic (e-mail: [email protected]) 4 Department of Ecology. Faculty of Science, Charles University, Viničná 7, 128 44-CZ...
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The concept of niche (setting, context, habitat, environment) has been little studied by ontologists, in spite of its wide application in a variety of disciplines from evolutionary biology to economics. What follows is a first formal theory of this concept, a theory of the relations between objects and their niches. The theory builds upon existing work on mereology, topology, and the theory of ...
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ژورنال
عنوان ژورنال: Nature
سال: 1982
ISSN: 0028-0836,1476-4687
DOI: 10.1038/295092c0