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Université de Neuchâtel

Parasitism and developmental plasticity in Alpine swift nestlings

Bize, Pierre ; Roulin, Alexandre ; Bersier, Louis-Félix ; Pfluger, Dominik ; Richner, Heinz

In: Journal of Tropical Ecology, 2003, vol. 72, no. 4, p. 633-639

1. Development plasticity is a common evolutionary and phenotypic response to poor growth condition, in particular in organisms with determinate growth such as most birds and mammals. Because various body structures can contribute differently to overall fitness, natural selection will adjust the degree of plasticity of each structure to its proportionate contribution to fitness at a given...

Université de Neuchâtel

Additive effects of ectoparasites over reproductive attempts in the long-lived alpine swift

Bize, Pierre ; Roulin, Alexandre ; Tella, José L. ; Bersier, Louis-Félix ; Richner, Heinz

In: Journal of animal ecology, 2004, vol. 73, no. 6, p. 1080-1088

1. Parasitism is a non-negligible cost of reproduction in wild organisms, and hosts are selected to partition resources optimally between current and future reproduction. While parents can compensate for the cost of parasitism by increasing their current reproductive investment, such change in resource allocation is expected to carry-over costs on future reproduction. 2. Life...