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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F13%3A10145634" target="_blank" >RIV/00216208:11310/13:10145634 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s10750-013-1625-3" target="_blank" >http://dx.doi.org/10.1007/s10750-013-1625-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10750-013-1625-3" target="_blank" >10.1007/s10750-013-1625-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

Floods accompanied by high flow and high water turbidity are usually believed to cause problems to fish-eating birds and mammals searching visually for their prey. In the present study the diets of breeding kingfishers were studied during the normal river situation and during a long-lasting flood event with respect to diet composition, size of fish prey and food diversity index. During the normal situation (flow 1.75 m(3) s(-1), Secchi disc depth 0.5-1 m), the diet of a kingfisher was dominated by benthic fish species (52.9% by numbers, 63.9% by weight), the average size of fish taken was 6.5 cm L (T) and 3.0 g and the food diversity index reached its lowest value (1.57). In contrast, during the long-lasting flood event (flow 5-28 m(3) s(-1), Secchi disc depth 0.03-0.4 m) the diet of the kingfisher was dominated by sub-surface fish species (72.4% by numbers, 76.1% by weight) and both the average size of fish taken (7.4 cm L (T) and 3.7 g) and the food diversity index (1.83) increased s

Název v anglickém jazyce

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

Popis výsledku anglicky

Floods accompanied by high flow and high water turbidity are usually believed to cause problems to fish-eating birds and mammals searching visually for their prey. In the present study the diets of breeding kingfishers were studied during the normal river situation and during a long-lasting flood event with respect to diet composition, size of fish prey and food diversity index. During the normal situation (flow 1.75 m(3) s(-1), Secchi disc depth 0.5-1 m), the diet of a kingfisher was dominated by benthic fish species (52.9% by numbers, 63.9% by weight), the average size of fish taken was 6.5 cm L (T) and 3.0 g and the food diversity index reached its lowest value (1.57). In contrast, during the long-lasting flood event (flow 5-28 m(3) s(-1), Secchi disc depth 0.03-0.4 m) the diet of the kingfisher was dominated by sub-surface fish species (72.4% by numbers, 76.1% by weight) and both the average size of fish taken (7.4 cm L (T) and 3.7 g) and the food diversity index (1.83) increased s

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Hydrobiologia

ISSN

0018-8158

e-ISSN

—

Svazek periodika

717

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

203-211

Kód UT WoS článku

000323660900016

EID výsledku v databázi Scopus

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