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- W2103294149 abstract "Summary The variations in the breeding seasons of the black-headed village weaver and the chestnut-and-black weaver were analysed in fifteen of the 30 colonies sighted at Ife and one colony on Ilesha Road, about 14 km to the east. Both species commenced large-scale breeding during the first peak in rainfall and established numerous unproductive satellite colonies. The changes in gonad weights indicated bimodal and discontinuous off-season breeding in the black-headed village weaver but breeding in the chestnut-and-black weaver was mainly unimodal, with two peaks observed in only one colony. The mean nest completion time and commencement of a new nest was 11 h (range = 9–15 h) and 6 days (range = 3–13 days), respectively whereas in the chestnut-and-black weaver the corresponding figures were 9 h (range = 6–11 h) and 3 days (range = 2–4 days). Mate attraction displays in both species were restricted during early stages of nest construction but were heightened on completion, when females were responsive. The mean bout lengths of undernest and branch displays in the chestnut-and-black weaver were significantly (P < 0.05) longer than in the black-headed village weaver. The pair bond formation and motivation of males to build a new nest were investigated. Résumé On analyse les variations des saisons de reproduction du tisserin gendarme et du tisserin noir de Vieillot dans 15 des 30 colonies connues à Ife et une colonie sur Ilesha Road, à environ 15 kilomètres vers l'est. Les deux espèces ont commencéà se reproduire en grand nombre lors du premier pic de la saison des pluies et ont établi de nombreuses colonies satellites improductives. Les changements du poids des gonades indiquaient une reproduction hors-saison bimodale et discontinue chez le tisserin gendarme mais la reproduction du tisserin noir de Vieillot était surtout unimodale, avec deux pics de reproduction dans une colonie seulement. Le temps moyen pour terminer un nid et en commencer un autre était de 11 h. (de 9 à 15 h.) et 6 jours (de 3 à 13 jours) pour le premier alors que pour le tisserin noir de Vieillot les chiffres correspondants étaient de 9 h. (de 6 à 11 h.) et 3 jours (de 2 à 4 jours). Les manifestations pour l'accouplement étaient limitées au début de la construction du nid mais devenaient plus vives lorsque celui-ci se terminait et que les femelles devenaient plus réceptives. La durée moyenne des manifestations sous le nid et sur les branches était significativement plus longue chez le tisserin noir de Vieillot (P <0,05) que chez le tisserin gendarme. On a étudié la formation du couple et la motivation des mâles à construire un nouveau nid." @default.
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- W2103294149 date "1992-03-01" @default.
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- W2103294149 title "Breeding of the black-headed village weaver (Ploceus cucullatus) and the chestnut-and-black weaver (P. nigerrimus) in Ile-Ife, Nigeria" @default.
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- W2103294149 doi "https://doi.org/10.1111/j.1365-2028.1992.tb00478.x" @default.
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