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Article
Scott A. MacDougall-Shackleton, Auteur ; Thomas P. Hahn, AuteurThe reproductive cycle of most birds is driven by the annual change in photoperiod, with birds cycling between the physiological states of photosensitivity, photostimulation and photorefractoriness. Comparative studies show that variation in bre[...]
Article
Stephan J. Schoech, Auteur ; Thomas P. Hahn, AuteurFood supplementation usually advances the timing of laying. Here, we report a meta-analysis of 35 food supplementation studies demonstrating that species at high latitudes are less responsive to food supplementation than those at lower latitudes[...]
Article
Jamie M. Cornelius, Auteur ; Thomas P. Hahn, AuteurIt is well documented that irruptive and nomadic migrants move in response to resources that are distributed unpredictably in space, time or both. Increasing evidence, however, suggests that irruptive and nomadic species may use seasonal timing [...]
