publication . Article . Other literature type . 2006

Measuring specialization in species interaction networks

Florian Menzel; Nils Blüthgen; Nico Blüthgen;
Open Access
  • Published: 01 Aug 2006 Journal: BMC Ecology, volume 6, page 9 (issn: 1472-6785, Copyright policy)
  • Publisher: Springer Science and Business Media LLC
<p>Abstract</p> <p>Background</p> <p>Network analyses of plant-animal interactions hold valuable biological information. They are often used to quantify the degree of specialization between partners, but usually based on qualitative indices such as 'connectance' or number of links. These measures ignore interaction frequencies or sampling intensity, and strongly depend on network size.</p> <p>Results</p> <p>Here we introduce two quantitative indices using interaction frequencies to describe the degree of specialization, based on information theory. The first measure (<it>d</it>') describes the degree of interaction specialization at the species level, while the ...
free text keywords: Ecology, Evolution, Behavior and Systematics, General Environmental Science, QH540-549.5, Methodology Article, Sampling (statistics), Ecology, Null model, Plant Physiological Phenomena, Biology, Ecosystem, Food chain, Network size
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