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3 results found
Avian eggshells harbour microbes shortly after laying, and under appropriate ambient conditions they can multiply rapidly, penetrate through shell pores, infect egg contents and cause embryo mortality. We experimentally examined how incubation affects bacterial processes on the eggshells of pearl-…
Author(s): Mark I. Cook, Steven R. Beissinger, Gary A. Toranzos, Wayne J. Arendt
Keywords: Bird, egg laying, egg viability, eggs, hatching asynchrony, incubation, life history, microbial ecology
Source: Ecology Letters, 8 :532–537
Year: 2005
Avian parents influence the onset of development, hatching synchrony, and likelihood of brood reduction through the onset of incubation. Studies testing adaptive functions of brood reduction assume that eggs are protected by their shells and waiting for parents to initiate incubation in a manner…
Author(s): STEVEN R. BEISSINGER, MARK I. COOK, WAYNE J. ARENDT
Keywords: altitudinal gradient, birds, developmental constraint, hatching asynchrony, climatic gradient, egg viability, incubation, parental care, Pearly-eyed Thrasher
Source: Ecology, 86(8), pp. 2164–2175
Year: 2005
I calculated various shell properties, water vapor loss, and hatching success of eggs of the Pearly-eyed Thrasher (Margarops fuscatus) using measurements obtained during a long-term study in the Luquillo Mountains, Puerto Rico. Empirical results were comparable to standard reference formulae,…
Author(s): WAYNE J. ARENDT
Keywords: Allometry, density, incubation, mass, Puerto Rico, volume, water balance, water vapor
Source: Caribbean Journal of Science, Vol. 41, No. 2, 283-295,
Year: 2005
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