Animal names - download pdf or read online

By Alessandro Minelli, Gherardo Ortalli, Glauco Sanga

ISBN-10: 8888143386

ISBN-13: 9788888143385

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Some of the advantages of chemical communication over sound relate to scale effects of signal production and the size of the organism: smaller organisms cannot make the lower frequency sound signals which travel further (Dusenbery 1992) (see Chapter 10). 2 Birds and pheromones? Birds are not famous for their pheromone communication . . yet. g. Bennett et al. 1997), pheromones could be important for birds. Most birds have a good sense of smell but we have been so attracted by bird songs and visual displays that the role of olfaction in reproduction and recognition behaviour has been little studied (see review in Roper 1999).

G. Pankiw et al. 1995) and are likely to be used increasingly with vertebrates. The new approaches coming from, for example, molecular biology and brain imaging, are likely to increase the need for collaboration between different branches of biology. Some of the breakthroughs such collaboration could bring are illustrated in Chapter 9. Underlying everything, however, will be a need for a good understanding of the behaviour of the animal concerned and how it evolved. 8 Conclusion The challenges presented by pheromones have meant that some of the most productive research teams have combined the expertise of chemists and biologists.

6) and look for differences. This comparative approach has helped with identification of mammal pheromones by exploiting the dependence of male sex pheromone secretion on testosterone. 5 FINDING AND IDENTIFYING ACTIVE COMPONENTS FID (mV) (a) Fig. 6. In social insects such as the ‘queenless’ ant, Dinoponera quadriceps, the egg-laying status of individuals is reflected in particular hydrocarbons on their body surface. (a) The SPME–GC trace above, of the cuticle of a mated alpha female (who dominates the colony), and the trace below, of a sterile worker, show the differences in their cuticular hydrocarbons; note the difference for peak 40 (starred) which is 9-hentriacontene, characteristic of alpha females.

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Animal names by Alessandro Minelli, Gherardo Ortalli, Glauco Sanga

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