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Titolo:
Female body size, fecundity parameters and foundation of new colonies in Anelosimus jabaquara (Araneae, Theridiidae)
Autore:
Gonzaga, MO; Vasconcellos-Neto, J;
Indirizzi:
UNICAMP, Inst Biol, Dept Zool, BR-13083970 Campinas, SP, Brazil UNICAMP Campinas SP Brazil BR-13083970 BCBR-13083970 Campinas, SP, Brazil
Titolo Testata:
INSECTES SOCIAUX
fascicolo: 2, volume: 48, anno: 2001,
pagine: 94 - 100
SICI:
0020-1812(2001)48:2<94:FBSFPA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOCIAL SPIDER; CLUTCH SIZE; EXIMIUS; EVOLUTION; STUDIOSUS; HISTORY;
Keywords:
Anelosimus; sociality; colony foundation; clutch size; body size;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Gonzaga, MO UNICAMP, Inst Biol, Dept Zool, Caixa Postal 6109, BR-13083970 Campinas, SP, Brazil UNICAMP Caixa Postal 6109 Campinas SP Brazil BR-13083970 BCzil
Citazione:
M.O. Gonzaga e J. Vasconcellos-Neto, "Female body size, fecundity parameters and foundation of new colonies in Anelosimus jabaquara (Araneae, Theridiidae)", INSECT SOC, 48(2), 2001, pp. 94-100

Abstract

As in other social spider species, subadult Aneolosimus jabaquara females found new colonies after solitary dispersal. Some individuals, however, usually remain and reproduce in their natal nests. To test the hypothesis thatlarge females disperse more often than smaller ones, we compared the body size of A. jabaquara females that remained in their natal colonies with those that left to build solitary webs. We also compared clutch size. egg diameter, total egg volume and spiderling size in both conditions. Emigrating females were significantly larger and laid larger clutches. The smaller females that had not dispersed laid significantly larger eggs, although their total egg volume was lower. Spiderlings of solitary females were smaller andhad a smaller range of size variation than those from colonies. We discussthe implications of these results in terms of costs and benefits of dispersion for spiders in different nutritional conditions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 01:03:57