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- W2071594400 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 245:259-272 (2002) - doi:10.3354/meps245259 Scale-dependent associations of predators and prey: constraints imposed by flightlessness of common murres Gail K. Davoren1,*, William A. Montevecchi1, John T. Anderson2 1Biopsychology Programme, Departments of Biology and Psychology, Memorial University of Newfoundland, St. John¹s, Newfoundland A1B 3X9, Canada 2Department of Fisheries and Oceans, Science Branch, PO Box 5667, St. John¹s, Newfoundland A1C 5X1, Canada *Email: z73gkd@mun.ca ABSTRACT: We examined the behavioural interactions of a mobile marine predator, the common murre Uria aalge, and its prey in a cold ocean regime in the context of shifting foraging constraints of the predator during various periods of the year. To do this, we explored the scale-dependent distribution patterns of murres in relation to their prey under 2 mobility regimes: (1) during the pre-breeding period when murres can fly and (2) during the post-breeding or moulting period when murres are flightless and are accompanied by flightless juveniles. In addition, we documented for the first time the relative contributions of different prey types in the diets of murres during moult using stable isotopic analysis. Flightless adult and juvenile murres were concentrated on a meso-scale (>100 km) in an area (nursery area) where significantly greater amounts of non-capelin, mainly crustaceans, were located in closely spaced aggregations. Accordingly, flightless murres had variable proportions of fish (capelin Mallotus villosus) and crustaceans in their diet, whereas breeding murres exclusively ate capelin. At fine- and coarse-scales (0.1 to 100 km), murres that could fly during pre-breeding tracked prey at smaller spatial scales (3 to 4 km) than flightless murres (6 to 9 km). We hypothesize that varying mobility regimes and energetic demands (activity levels) of murres during these 2 periods resulted in divergent perceptions of the foraging environment and subsequently in varying tracking scales of prey. This has important implications for the scale of study during different periods of the annual cycle of a predator, when varying constraints and trophic levels may interact to produce diverse behavioural responses to prey distribution and densities. KEY WORDS: Scale-dependence · Tracking scale · Predator-prey · Stable isotope analysis · Common murre · Uria aalge · Capelin · Mallotus villosus Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 245. Online publication date: December 18, 2002 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2002 Inter-Research." @default.
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- W2071594400 title "Scale-dependent associations of predators and prey: constraints imposed by flightlessness of common murres" @default.
- W2071594400 cites W1021745410 @default.
- W2071594400 cites W1554981330 @default.
- W2071594400 cites W190348092 @default.
- W2071594400 cites W1906551997 @default.
- W2071594400 cites W1965877937 @default.
- W2071594400 cites W1970513051 @default.
- W2071594400 cites W1973442996 @default.
- W2071594400 cites W1980958280 @default.
- W2071594400 cites W1984306136 @default.
- W2071594400 cites W1986503485 @default.
- W2071594400 cites W1993795157 @default.
- W2071594400 cites W1997458491 @default.
- W2071594400 cites W1998792830 @default.
- W2071594400 cites W2005385504 @default.
- W2071594400 cites W2008662520 @default.
- W2071594400 cites W2010208322 @default.
- W2071594400 cites W2014656592 @default.
- W2071594400 cites W2014927116 @default.
- W2071594400 cites W2015978422 @default.
- W2071594400 cites W2016804185 @default.
- W2071594400 cites W2017327760 @default.
- W2071594400 cites W2019596684 @default.
- W2071594400 cites W2027266297 @default.
- W2071594400 cites W2029748221 @default.
- W2071594400 cites W2035297572 @default.
- W2071594400 cites W2036483882 @default.
- W2071594400 cites W2037164904 @default.
- W2071594400 cites W2037939791 @default.
- W2071594400 cites W2038200353 @default.
- W2071594400 cites W2038678704 @default.
- W2071594400 cites W2044650984 @default.
- W2071594400 cites W2054366045 @default.
- W2071594400 cites W2055475492 @default.
- W2071594400 cites W2055894604 @default.
- W2071594400 cites W2064921674 @default.
- W2071594400 cites W2065289186 @default.
- W2071594400 cites W2075824887 @default.
- W2071594400 cites W2079958631 @default.
- W2071594400 cites W2081887029 @default.
- W2071594400 cites W2086045541 @default.
- W2071594400 cites W2094838396 @default.
- W2071594400 cites W2110704831 @default.
- W2071594400 cites W2119864364 @default.
- W2071594400 cites W2124372742 @default.
- W2071594400 cites W2126697765 @default.
- W2071594400 cites W2128188398 @default.
- W2071594400 cites W2129298839 @default.
- W2071594400 cites W2134991739 @default.
- W2071594400 cites W2138744051 @default.
- W2071594400 cites W2139890353 @default.
- W2071594400 cites W2144915079 @default.
- W2071594400 cites W2171120543 @default.
- W2071594400 cites W2171769937 @default.
- W2071594400 cites W2206871708 @default.
- W2071594400 cites W2288272569 @default.
- W2071594400 cites W2312213880 @default.
- W2071594400 cites W2313489757 @default.
- W2071594400 cites W2314486654 @default.
- W2071594400 cites W2316157649 @default.
- W2071594400 cites W2324851947 @default.
- W2071594400 cites W2327307910 @default.
- W2071594400 cites W2329235799 @default.
- W2071594400 cites W2331697424 @default.
- W2071594400 cites W2334757930 @default.
- W2071594400 cites W2463802608 @default.
- W2071594400 cites W2479072180 @default.
- W2071594400 cites W2479254359 @default.
- W2071594400 cites W2896362474 @default.
- W2071594400 cites W2896817248 @default.
- W2071594400 cites W88560256 @default.
- W2071594400 cites W2460970670 @default.
- W2071594400 cites W2466139013 @default.
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