Parasites and size-assortative schooling in three-spined sticklebacks

Article Abstract:

The data of the occurrence of size-assortative schooling in a marine population of three spined stickleback Gasterosteus aculeatus L. (Gasterosteidae, Teleostei) is described. The patterns of parasite infections within and between schools and the extent of assortment of schools by parasite infection prevalence and /or intensity are examined.

Influence, Genetic aspects, Parasites, Sticklebacks, Marine productivity

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Explaining adaptive shifts in body size on islands: a life history approach

Article Abstract:

The mechanism for size changes is investigated. The potential of decreased resource availability and reduced predation pressure to produce body size changes via the evolution of life history traits is described.

Islands, Island ecology

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The energetic equivalence rule rejected because of a potentially common sampling error: evidence from carabid beetles

Article Abstract:

The form of size-abundance relationships in insect communities is described. The relationship between beetle body size and abundance is estimated with the help of pitfall traps technique.

Beetles, Animal reproduction

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