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INFLUENCE OF COLLECTIVE FEEDING ON WEIGHT GAIN AND SIZE VARIABILITY OF ANELOSIMUS JABAQUARA LEVI 1956 (ARANEAE: THERIDIIDAE)

De Oliveira Gonzaga, Marcelo ; Vasconcellos-Neto, João

Behaviour, 2002, Vol.139 (11-12), p.1431-1442 [Periódico revisado por pares]

The Netherlands: Brill

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Título:
INFLUENCE OF COLLECTIVE FEEDING ON WEIGHT GAIN AND SIZE VARIABILITY OF ANELOSIMUS JABAQUARA LEVI 1956 (ARANEAE: THERIDIIDAE)
Autor: De Oliveira Gonzaga, Marcelo ; Vasconcellos-Neto, João
Assuntos: Anelosimus jabaquara ; Animal and plant ecology ; Animal nesting ; Animal social behavior ; Animal, plant and microbial ecology ; Animals ; Autoecology ; Biological and medical sciences ; collective feeding ; Female animals ; Flies ; Food ; Foraging ; Fundamental and applied biological sciences. Psychology ; Insect colonies ; prey capture behaviour ; Protozoa. Invertebrata ; size variability ; Social behavior ; Social evolution ; social spiders ; Spiders
É parte de: Behaviour, 2002, Vol.139 (11-12), p.1431-1442
Notas: istex:D3D40443F526DB77A2DC30A27F045B3C6DCFD97F
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Descrição: AbstractDifferences in the size and weight of spiders within colonies may be an important factor for determining dispersion and food distribution among nestmates. In this study we report on the variation in size of spiders from 27 colonies of A. jabaquara, collected during one year. We also conducted an experiment under laboratory conditions to test if prey size, and consequently, collective or individual capture behaviours, influence the establishment of weight differences. Female size variation within colonies was high, increasing slightly from March to September. However, from November to January the variation was much lower, probably as a consequence of the emigration of large spiders during the reproductive period. Spiders that fed on large flies in the laboratory experiment grew more and collective feeding seemed to induce a larger variation in weight among individuals. These results indicate that collective feeding promotes an unequal distribution of food in A. jabaquara colonies.
Editor: The Netherlands: Brill
Idioma: Inglês

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INFLUENCE OF COLLECTIVE FEEDING ON WEIGHT GAIN AND SIZE VARIABILITY OF ANELOSIMUS JABAQUARA LEVI 1956 (ARANEAE: THERIDIIDAE)

De Oliveira Gonzaga, Marcelo ; Vasconcellos-Neto, João

The Netherlands: Brill

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