Insect Herbivore-Host Dynamics: Tree-Dwelling Aphids
By: A. F. G. Dixon (author)Hardback
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Literature on the population dynamics of insect herbivores tends to favour a top-down regulation of abundance, owing much to the action of natural enemies. Originally published in 2005, this volume challenges this paradigm and argues that tree-dwelling species of aphids, through competition for resources, regulate their own abundance. The biology of tree-dwelling aphids is examined, particularly their adaptation to the seasonal development of their host plants. When host-plant quality is favourable, aphids, by telescoping generations, can achieve prodigious rates of increase which their natural enemies are unable to match. Using analyses of long-term population censuses and results of experiments, this book introduces students and research workers to insect herbivore-host dynamics using the interaction between aphids and trees as a model.
A. F. G.Dixon is an Emeritus Professor in the School of Biological Sciences at the University of East Anglia. He has written over 200 papers on aphids and their natural enemies in scientific journals, and has written or edited 10 books. In 1992, he was awarded the Gregor Mendel Gold Medal by the Czech Academy of Science, in 2000 a medal of honour by Akademia Podlaska, Poland, and in 2001 became Laureate of the University of South Bohemia, Czech Republic.
1. Introduction; 2. Tree dwelling aphids; 3. Trees as a habitat for aphids: relation to host plant; 4. Trees as a habitat for aphids: relation to natural enemies; 5. Carrying capacity of trees; 6. Aphid abundance; 7. Population dynamics; 8. Risky dispersal; 9. Seasonal sex allocation; 10. Aphids and tree fitness; 11. Rarity, conservation and global warming; Epilogue.
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- ID: 9780521802321
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