Risk-sensitive mating decisions in a visually compromised environment

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Wong BBM, Järvenpää M, Lindström K
Förläggare: ROYAL SOC
Publiceringsår: 2009
Tidskrift: Biology Letters
Tidskriftsakronym: BIOL LETTERS
Volym: 5
Nummer: 5
Artikelns första sida, sidnummer: 600
Artikelns sista sida, sidnummer: 602
Antal sidor: 3
ISSN: 1744-9561
eISSN: 1744-957X


Abstrakt

Reproductive activities are often conspicuous and can increase the risk of predation. Evidence suggests that individuals are capable of responding to predators in a risk-sensitive manner. However, most studies tend to consider only the predator-mediated responses of males and females in isolation and with little regard to differences in local environmental conditions. Here, we experimentally investigate the effects of environmental visibility (turbidity) and predation risk on reproductive decisions in the sand goby, Pomatoschistus minutus, when exposed to a visually oriented predator, the European perch, Perca fluviatilis. We found that gobies were more reluctant to spawn in the predator's presence, although larger males spawned sooner than smaller males. Interestingly, latency to spawning was unaffected by the visual environment, suggesting that gobies may be relying on non-visual cues under turbid conditions.


Nyckelord

eutrophication, Gobiidae, mate choice, predation risk, sexual selection

Senast uppdaterad 2020-17-01 vid 03:39