By Nicholas B. Davies, John R. Krebs, Stuart A. West
This textbook helped to outline the sector of Behavioural Ecology. during this fourth variation the textual content has been thoroughly revised, with new chapters and lots of new illustrations and color pictures. The subject, once more, is the impact of ordinary choice on behaviour – an animal's fight to outlive and reproduce through exploiting and competing for assets, averting predators, deciding on associates and taking good care of offspring, – and the way animal societies replicate either cooperation and clash between individuals.
Written within the comparable enticing and lucid type because the past variants, the authors clarify the newest theoretical principles utilizing examples from micro-organisms, invertebrates and vertebrates. There are boxed sections for a few themes and marginal notes aid consultant the reader. The ebook should be crucial studying for college kids of behavioural ecology, animal behaviour and evolutionary biology. [From publisher's blurb.]
"[A] new version of the textbook that has brought generations of undergraduates (and postgraduates) to the delights of behavioural ecology, inspiring many (myself integrated) to absorb the self-discipline professionally, is a unprecedented deal with. Behavioural ecology is, essentially, modern day typical background and there's no clearer written, extra inspiringly enthusiastic advisor to the topic out there. This e-book units the premiere for behavioural ecology and animal behaviour textbooks on the way to without doubt proceed to notify and pleasure scholars and researchers in equivalent degree for a few years to come." [From evaluate in Animal Behaviour, 1 March 2013.]
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Extra info for An Introduction to Behavioural Ecology (4th Edition)
It is important to distinguish proximate factors, which explain how individuals come to behave in a particular way during their lifetime, from ultimate factors, which concern adaptive advantage in evolution. Natural selection works on genetic differences. Examples were discussed to illustrate how genetic differences cause differences in phenotype and behaviour: foraging, learning and courtship in Drosophila; foraging in honeybees; colour and mate/habitat choice in geese and mice; and migration strategies in the blackcap, which provide an example of a recent evolutionary change in behaviour.
Limitations of early comparative studies These early studies revealed the promise of the comparative approach in behavioural ecology. However, there were limitations in the methodology. Many of these are not unique to comparative studies and it is worth bearing them in mind throughout the book. (a) Alternative hypotheses The explanations for the differences in behaviour are certainly plausible, but alternative hypothesis have not been considered in a rigorous manner. For example, the nest site difference between the black-headed gull and kittiwake is also likely to be correlated with differences in shelter, competition for nest sites and proximity to the feeding grounds.
Perhaps this difference is related to the extent of seasonal variation in mating competition and food supply? Some differences between species may reflect different solutions to the same problem (e) Statistical analysis and independent data We need statistical analysis to tell us how confident we can be in our conclusions. To do this, we need to think carefully about what constitutes independent data points. 2), 14 of the 16 grassland species belong to one genus, Euplectes. Can we consider all these as the outcomes of independent ‘evolutionary experiments’?