The role of floods in the lives of fish-eating birds: predator loss or benefit?

作者: Martin Čech , Pavel Čech

DOI: 10.1007/S10750-013-1625-3

关键词:

摘要: Floods accompanied by high flow and water turbidity are usually believed to cause problems fish-eating birds mammals searching visually for their prey. In the present study diets of breeding kingfishers were studied during normal river situation a long-lasting flood event with respect diet composition, size fish prey food diversity index. During (flow 1.75 m3 s−1, Secchi disc depth 0.5–1 m), kingfisher was dominated benthic species (52.9% numbers, 63.9% weight), average taken 6.5 cm LT 3.0 g index reached its lowest value (1.57). contrast, 5–28 0.03–0.4 m) sub-surface (72.4% 76.1% weight) both (7.4 3.7 g) (1.83) increased significantly. The provided nestlings lower numbers larger sizes, which resulted in very similar weights young prior fledging when situations compared. This provides evidence that different foraging conditions adopt strategies maintain success.

参考文章(22)
Tony J. Pitcher, Behaviour of Teleost Fishes ,(1992)
D. M. Guthrie, Role of Vision in Fish Behaviour Springer, Boston, MA. pp. 75- 113 ,(1986) , 10.1007/978-1-4684-8261-4_4
Christopher M. Perrins, Robert Gillmor, David Snow, The birds of the western Palearctic Oxford University Press. ,(1998)
Mark V. Abrahams, Michael G. Kattenfeld, The role of turbidity as a constraint on predator-prey interactions in aquatic environments Behavioral Ecology and Sociobiology. ,vol. 40, pp. 169- 174 ,(1997) , 10.1007/S002650050330
Nicola Lugeri, Zbigniew W. Kundzewicz, Elisabetta Genovese, Stefan Hochrainer, Maciej Radziejewski, River flood risk and adaptation in Europe—assessment of the present status Mitigation and Adaptation Strategies for Global Change. ,vol. 15, pp. 621- 639 ,(2010) , 10.1007/S11027-009-9211-8
Martin Čech, Pavel Čech, Jan Kubečka, Marie Prchalová, Vladislav Draštík, None, Size Selectivity in Summer and Winter Diets of Great Cormorant (Phalacrocorax carbo ): Does it Reflect Season-Dependent Difference in Foraging Efficiency? Waterbirds. ,vol. 31, pp. 438- 447 ,(2008) , 10.1675/1524-4695-31.3.438
David Pecqueur, Francesca Vidussi, Eric Fouilland, Emilie Le Floc’h, Sebastien Mas, Cecile Roques, Christian Salles, Marie-George Tournoud, Behzad Mostajir, Dynamics of microbial planktonic food web components during a river flash flood in a Mediterranean coastal lagoon Hydrobiologia. ,vol. 673, pp. 13- 27 ,(2011) , 10.1007/S10750-011-0745-X