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(Madge and Burn 1988). It Saucony Shoes New York
also threatened with direct mortality from oil pollution (Gorski et al. 1977, del Hoyo et al. 1992, Kirby et al. 1993), drowning through entanglement in fishing nets (del Hoyo et al. 1992, Kirby et al. 1993) and from hunting on migration routes over certain regions of the Arctic (del Hoyo et al. 1992). The species has previously suffered heavy losses from an outbreak of avian cholera (Friend 2006) and is susceptible to avian influenza (Melville and Shortridge 2006) so may be threatened by future outbreaks of these diseases. There is evidence that the species is experiencing low reproductive success on its Arctic breeding grounds.
984) usually close to water Saucony Shadow Original Suede
75% from prior to 1990 until c. 2000 (J. Bellebaum in litt. 2012). Drastic declines on the tundra of eastern European Russia since 1973 are thought to be connected to the natural cycles of the species, pollution from oil and gas extractions, and pollution from the deposition of nuclear and chemical waste in northern seas (Y. and O. Mineev in litt. 2012). In 2006 2007, on the Hatpudirskaya bay coast (Barents Sea), several thousand dead C.
Hario et al. 2009, Ellermaa et al. 2010), indicating that insufficient young are being raised to compensate for adult mortality. The breeding Saucony Grid 8000 success of this (and other) species seems to have declined since the mid 1990s, when the formerly distinctive 3 4 year cycle in the abundance of Arctic rodents collapsed, probably due to climate change. With fewer rodents around, Arctic predators now take a heavier toll on breeding birds every year, instead of only once every 3 4 years. Although the main reason for low breeding productivity seems to be likely connected mainly with skipped breeding, rather than with increased predation pressure, possibly owing to worsened female body condition (A. Kondratyev in litt. 2012). A decline in breeding productivity is supported by unpublished data on the age ratio of gillnet victims in the southern Baltic, which suggest a decline in breeding success by c.
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