by admin | Feb 14, 2018 | Behaviour, Evolution
In a study published in Science in 2002, Alex Weir, Jackie Chappell and Alex Kacelnik demonstrated that New Caledonian crows can bend wires into the shape of hooks to access food. This study was probably the first report of an animal purposefully modifying an object... by admin | Feb 11, 2018 | Behaviour, Evolution
In 1991, Geoffrey Hill published a paper in Nature describing the results of his field experiments with house finches which showed that: 1. females choose to mate with brightly-coloured males; 2. males with brightly-coloured plumages tended to contribute more to... by admin | Feb 7, 2018 | Ecology, Evolution
In 1992, Dolph Schluter and Don McPhail published a paper in The American Naturalist in which they provide evidence for ecological character displacement among species of stickleback fish that live in the lakes of coastal British Columbia. In the paper, Schluter and... by admin | Feb 4, 2018 | Behaviour, Evolution
In 1990, Manfred Milinski and Theo Bakker published a paper in Nature providing experimental evidence in support of the Hamilton-Zuk hypothesis. Milinski and Bakker showed, through experiments on three-spined stickleback, that: 1. the intensity of a male’s red... by admin | Feb 1, 2018 | Conservation, Ecology, Evolution
In a 2001 paper in Nature, Michel Loreau and Andy Hector described a new method, based on the Price equation, to partition the “selection effect” and the “complementarity effect” of biodiversity on ecosystem function, and demonstrated its use...