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Patterns In NatureThe Analysis of Species Co-Occurrences$
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James G. Sanderson and Stuart L. Pimm

Print publication date: 2015

Print ISBN-13: 9780226292724

Published to Chicago Scholarship Online: May 2016

DOI: 10.7208/chicago/9780226292861.001.0001

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The Birds of the Bismarck and Solomon Islands

The Birds of the Bismarck and Solomon Islands

Chapter:
(p.146) Chapter Eight The Birds of the Bismarck and Solomon Islands
Source:
Patterns In Nature
Author(s):

James G. Sanderson

Stuart L. Pimm

Publisher:
University of Chicago Press
DOI:10.7208/chicago/9780226292861.003.0008

We return to the Bismarck and Solomon islands, the locations that generated Diamond’s ideas on assembly rules. The null models generate a list of species pairs where the number of observed co-occurrences is unusual, meaning that thisoccurs in fewer than 5% of the null models. As Diamond’s critics had argued, interspecific competition is unlikely to generate some of these unusual pairs—they are ecologically and taxonomically very dissimilar. We show, however, that such unusual pairs are disproportionately common in pairs that belong to the same genus—exactly the pattern one would predict.

Keywords:   archipelago, avifauna, birds, checkerboard, co-occurrence, congener, guild, incidence, island, null model, overlap, spatial pattern, taxonomic sieving

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