Habitat width along a latitudinal gradient

Details Habitat width along a latitudinal gradient Habitat width along a latitudinal gradient

2006-12-07

arxiv.org/abs/q-bio/0612012v1

Biology

Quantitative Biology

Populations and Evolution

13 pages including all figures, draft for a biology journal

Scientific paper

We use the Chowdhury ecosystem model, one of the most complex agent-based ecological models, to test the latitude-niche breadth hypothesis, with regard to habitat width, i.e., whether tropical species generally have narrower habitats than high latitude ones. Application of the model has given realistic results in previous studies on latitudinal gradients in species diversity and Rapoport's rule. Here we show that tropical species with sufficient vagility and time to spread into adjacent habitats, tend to have wider habitats than high latitude ones, contradicting the latitude-niche breadth hypothesis.

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