Multiple aspects of plasticity in clutch size vary among populations of a globally distributed songbird
David F. Westneat, Veronika Bókony, Terry Burke, Olivier Chastel, Henrik Jensen, Thomas Kvalnes, Ádám Z. Lendvai, András Liker, Douglas Mock, Julia Schroeder, P. L. Schwagmeyer, Gabriele Sorci and Ian R. K. Stewart
Article first published online: 7 FEB 2014 | DOI: 10.1111/1365-2656.12191
Here, the authors describe a complex pattern of within-individual flexibility in house sparrow clutch size. Particular aspects of flexibility vary among populations, but not as predicted by life-history theory. This has implications for understanding plasticity in life-history traits in general, and hypotheses about clutch size in particular. Photo credit to H. Jensen.