Exposure to Chemical Cues from Predator-Exposed Conspecifics Increases Reproduction in a Wild Rodent
Haapakoski, M., Hardenbol, A.A., & Matson, K. D. (2018). Exposure to Chemical Cues from Predator-Exposed Conspecifics Increases Reproduction in a Wild Rodent. Scientific Reports, 8, Article 17214. https://doi.org/10.1038/s41598-018-35568-0
Julkaistu sarjassa
Scientific ReportsPäivämäärä
2018Tekijänoikeudet
© the Authors, 2018.
Predation involves more than just predators consuming prey. Indirect efects, such as fear responses
caused by predator presence, can have consequences for prey life history. Laboratory experiments
have shown that some rodents can recognize fear in conspecifcs via alarm pheromones. Individuals
exposed to alarm pheromones can exhibit behavioural alterations that are similar to those displayed
by predator-exposed individuals. Yet the ecological and evolutionary signifcance of alarm pheromones
in wild mammals remains unclear. We investigated how alarm pheromones afect the behaviour and
ftness of wild bank voles (Myodes glareolus) in outdoor enclosures. Specifcally, we compared the
efects of exposure of voles living in a natural environment to a second-hand fear cue, bedding material
used by predator-exposed voles. Control animals were exposed to bedding used by voles with no
predator experience. We found a ca. 50% increase in litter size in the group exposed to the predator cue.
Furthermore, female voles were attracted to and males were repelled by trap-associated bedding that
had been used by predator-exposed voles. Movement and foraging were not signifcantly afected by
the treatment. Our results suggest that predation risk can exert population-level efects through alarm
pheromones on prey individuals that did not encounter a direct predator cue.
...
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Nature Publishing GroupISSN Hae Julkaisufoorumista
2045-2322Asiasanat
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Secondhand horror : effects of direct and indirect predator cues on behavior and reproduction of the bank vole
Sievert, Thorbjörn; Haapakoski, Marko; Palme, Rupert; Voipio, Helinä; Ylönen, Hannu (Ecological Society of America, 2019)Risk recognition by prey is of paramount importance within the evolutionary arms race between predator and prey. Prey species are able to detect direct predator cues like odors and adjust their behavior appropriately. The ... -
Borrelia afzelii alters reproductive success in a rodent host
Cayol, Claire; Giermek, Anna; Gomez-Chamorro, Andrea; Hytönen, Jukka; Kallio, Eva; Mappes, Tapio; Salo, Jemiina; Voordouw, Maarten Jeroen; Koskela, Esa (The Royal Society Publishing, 2018)The impact of a pathogen on the fitness and behaviour of its natural host depends upon the host–parasite relationship in a given set of environmental conditions. Here, we experimentally investigated the effects of Borrelia ... -
Social transmission in the wild can reduce predation pressure on novel prey signals
Hämäläinen, Liisa; Hoppitt, William; Rowland, Hannah M.; Mappes, Johanna; Fulford, Anthony J.; Sosa, Sebastian; Thorogood, Rose (Nature Publishing Group, 2021)Social transmission of information is taxonomically widespread and could have profound effects on the ecological and evolutionary dynamics of animal communities. Demonstrating this in the wild, however, has been challenging. ... -
Balancing food, activity and the dangers of sunlit nights
Bleicher, Sonny S.; Haapakoski, Marko; Morin, Dana J.; Käpylä, Teemu; Ylönen, Hannu (Springer, 2019)Living in northern latitudes poses challenges to the animals that live in those habitats. The harsh environment provides a short breeding season where the sunlit summer nights provide little reprieve from visibility to ... -
Exposure to environmental radionuclides is associated with altered metabolic and immunity pathways in a wild rodent
Kesäniemi, Jenni; Jernfors, Toni; Lavrinienko, Anton; Kivisaari, Kati; Kiljunen, Mikko; Mappes, Tapio; Watts, Phillip C. (John Wiley & Sons, 2019)Wildlife inhabiting environments contaminated by radionuclides face putative detrimental effects of exposure to ionizing radiation, with biomarkers such as an increase in DNA damage and/or oxidative stress commonly associated ...
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