Individual variation in foraging ecology of Phalacrocoracidae

DOI Web Site 4 Citations 57 References

Bibliographic Information

Other Title
  • 魚食性鳥類における採食生態の個体変異　　ウ類の採食生態における個体変異
  • ウルイ ノ サイショク セイタイ ニ オケル コタイ ヘンイ

Search this article

Description

Technical development such as radiotelemetry, data logger and stable isotope analyses have enabled studies of individual variation in foraging ecology of seabirds. Individual variation in dive depth, foraging site, diet and foraging habitat are often observed in Phalacrocoracidae. Individuals feed solitarily but sometimes join large foraging groups. Some birds migrate but others are resident. Individual birds show high flexibility in foraging behaviour according to food availability. Thus foraging site fidelity and flexible foraging behaviour are both important aspects of cormorant foraging ecology. The stable isotope ratio in appropriate tissues gives us useful information on the food cormorants ate during certain time windows. To understand individual-based foraging strategies and population dynamics, and also to provide adequate plans for conservation and management of cormorants, further research is necessary on the factors determining individual variation in foraging ecology.

Journal

Citations (4)*help

See more

References(57)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top