Guy Beauchamp

Nov 8, 2024 | mdpi.com | Guy Beauchamp

1. IntroductionMales in many species of animals produce signals across a variety of sensory channels to attract females for reproduction [1]. Examples include auditory calls in insects and frogs [2] or visual flashing lights in fireflies [3]. Signals can be produced by solitary individuals, but males can also aggregate in particular locations to produce concurrent signals that attract searching females.

Jun 20, 2024 | mdpi.com | Guy Beauchamp |Sahas Barve

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Aug 23, 2023 | mdpi.com | Guy Beauchamp

1. IntroductionThrough evolutionary times, the eye has acquired several adaptations to allow birds to detect food and predators more efficiently. Variations in retinal anatomy, for instance, allow birds to forage at low light levels [1] or in aquatic environments [2] to monitor threats on the horizon [3] and to track and capture fast-moving prey [4]. The size of the eye also represents a target for selection, as it affects focal length and image resolution.

May 2, 2023 | mdpi.com | Guy Beauchamp |Sahas Barve

Open AccessArticleby 1,* and 2 1Independent Researcher, Montreal, QC, Canada2Archbold Biological Station, 123 Main Dr., Venus, FL 33960, USA*Author to whom correspondence should be addressed.

Feb 5, 2023 | mdpi.com | Guy Beauchamp

Abstract: Simple SummaryPredation can have a major impact on animal populations, and yet the factors that affect susceptibility to predation among species are poorly understood given that predation rate is difficult to measure in the field. Using estimates of predation rates from a large number of published radio-tracking studies in birds, I examined the general expectation that species facing fewer predators or those with effective anti-predator responses experience lower predation rates.