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December 2005 3425BOOK REVIEWS For the third trend, we turn to what is possibly the most

Summary: December 2005 3425BOOK REVIEWS
For the third trend, we turn to what is possibly the most
compelling research development of the last decade--the rec-
ognition that understanding the life-history, ecology, and evo-
lution of migration must involve explicit integration, both in
theory and in practice, across all stages of the annual cycle.
The effects and constraints generated by seasonal interactions
and carry-over effects are critical components of migrant pop-
ulation dynamics and evolution. Perhaps the best-understood
seasonal interaction is how arrival time and condition on the
breeding grounds following spring migration influences even-
tual reproductive success and fitness. Arrival time and con-
dition are dependent on a myriad of factors that exert their
influence outside the breeding season, not the least of which
is habitat quality during the non-breeding season and at stop-
over locations.
In a more colorful example, males of many migratory spe-
cies maintain their bright breeding plumage throughout the
non-breeding season, even though some of these species are
not territorial during the non-breeding season. Viewed only


Source: Azevedo, Ricardo - Department of Biology and Biochemistry, University of Houston
Holland, J. Nathaniel - Department of Ecology and Evolutionary Biology, Rice University


Collections: Biology and Medicine; Environmental Sciences and Ecology