By Eric M. Wood, Jherime L. Kellermann
Present premiums of weather switch are swifter than birds can evolve, resulting in critical mismatch of migration and seasonal or phenological timing. the result's a concomitant decline of migratory fowl species. The editors of this quantity have assembled a group of prime specialists to synthesize and evaluation what's recognized of the phenological asynchrony linked to the timing and styles of North American chicken migration. it will be one of the so much stark and alarming bills of the opposed affects of weather switch on a continental scale. Read more...
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Extra info for Phenological Synchrony and Bird Migration : Changing Climate and Seasonal Resources in North America
However, this risk appears to be increasing in the Great Lakes region. 21 (1980–2012). While it is unclear how general or persistent this high increase in frost risk might be, projections suggest that periods of cold conditions in spring will persist in the Great Lakes region through the end of the next century, in spite of overall trends toward warmer average temperatures (Kodra et al. 2011). Proximity to water, which can buffer air temperature fluctuations, as well as topographical factors that influence movement of cold air, can influence frost risk (Gu et al.
2010, Dobrowski et al. 2013, Pryor et al. 2013). For example, Michigan, Minnesota, and Wisconsin are among the 10 fastest warming states in the United States (Tebaldi et al. 2; see Dobrowski et al. 2013 for annual patterns). Warmer winters and, to a lesser degree, extension of warmer temperatures into fall are extending growing seasons in most of the Midwest (Pryor et al. 2013). By 1999, the frost- free period had increased by more than 1 week in most parts of the region (CCSP 2009, Andresen et al.
M. Tinbergen, and C. M. Lessells. 1998. Warmer springs lead to mistimed reproduction in Great Tits (Parus major). Proceedings of the Royal Society of London Series B 265:1867–1870. Walther, G. , E. Post, P. Convey, A. Menzel, C. Parmesan, T. J. C. Beebee, J. Fromentin, O. Hoegh-Guldberg, and F. Bairlein. 2002. Ecological responses to recent climate change. Nature 416:389–395. , and M. Král. 2007. Climatic effects on arrival and laying dates in a long- distance migrant, the Collared Flycatcher Ficedula albicollis.