The effect of foraging parameters on the probability that a dive is successful

AI Houston, JM McNamara, JE Heron, ZL Barta

Research output: Contribution to journalArticle (Academic Journal)peer-review

10 Citations (Scopus)

Abstract

In this paper, we investigate the foraging decisions of an animal that dives to obtain its food. It might seem reasonable to use the probability that the diver is successful in any dive as an indicator of habitat quality. We use a dynamic model of optimal prey choice to show that this interpretation of diving success is not generally valid. In particular, we show that diving success is not directly proportional to the overall rate of gain that can be achieved in an environment. Furthermore, some environmental factors can have a non-monotonic effect on the probability of success. For example, as the travel time to the foraging area increases, the probability of success may first increase and then decrease. We point out that the same conclusions are likely to apply in the context of mate choice, i.e. the probability of getting a mate may not be an indicator of the quality of the environment in terms of reproductive success.
Translated title of the contributionThe effect of foraging parameters on the probability that a dive is successful
Original languageEnglish
Pages (from-to)2451 - 2455
Number of pages5
JournalProceedings of the Royal Society B: Biological Sciences
Volume270 (1532)
DOIs
Publication statusPublished - Dec 2003

Bibliographical note

Publisher: Royal Society
Other identifier: IDS number 751UV

Fingerprint Dive into the research topics of 'The effect of foraging parameters on the probability that a dive is successful'. Together they form a unique fingerprint.

Cite this