Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores
By suppressing mesocarnivore foraging, the fear large carnivores inspire can be critical to mitigating mesocarnivore impacts. Where large carnivores have declined, mesocarnivores may quantitatively increase foraging, commensurate with reductions in fear. The extirpation of large carnivores may furth...
Main Authors: | , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Data Archiving and Networked Services (DANS)
2016
|
Subjects: | |
Online Access: | https://doi.org/10.5061/dryad.8128h |
id |
fttriple:oai:gotriple.eu:50|dedup_wf_001::841d516ddc13185087012592eb99c9af |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:50|dedup_wf_001::841d516ddc13185087012592eb99c9af 2023-05-15T17:58:58+02:00 Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores Suraci, Justin P. Roberts, Devin J. Clinchy, Michael Zanette, Liana Y. 2016-11-18 https://doi.org/10.5061/dryad.8128h undefined unknown Data Archiving and Networked Services (DANS) http://dx.doi.org/10.5061/dryad.8128h https://dx.doi.org/10.5061/dryad.8128h lic_creative-commons oai:easy.dans.knaw.nl:easy-dataset:96400 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96400 10.5061/dryad.8128h 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care Procyon lotor predation risk Antipredator Behavior playback experiment mesopredator release predator naiveté ecology of fear Gulf Islands British Columbia psy envir Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2016 fttriple https://doi.org/10.5061/dryad.8128h 2023-01-22T17:41:43Z By suppressing mesocarnivore foraging, the fear large carnivores inspire can be critical to mitigating mesocarnivore impacts. Where large carnivores have declined, mesocarnivores may quantitatively increase foraging, commensurate with reductions in fear. The extirpation of large carnivores may further exacerbate mesocarnivore impacts by causing qualitative changes in mesocarnivore behavior. Error management theory suggests that, where predators are present, prey should be biased towards over-responsiveness to predator cues, abandoning foraging in response to both predator cues and benign stimuli mistaken for predator cues (false-positives). Where predators are absent, prey may avoid these foraging costs by becoming unresponsive (naïve) to both predator cues and false-positives. If naiveté occurs in mesocarnivores where large carnivores have been extirpated, it could substantively exacerbate their impacts, as “fearless” mesocarnivores may engage in virtually unrestricted foraging. We tested the naiveté of raccoons (Procyon lotor) to extirpated large carnivores in the context of a larger experiment demonstrating that fear of large carnivores can mediate mesocarnivore impacts. Raccoon responsiveness to playbacks of their extirpated large carnivore predators (cougars, Puma concolor; bears, Ursus americanus) was significantly less than to the only extant large carnivore predator (dogs), and was no greater than to non-predators (“seals”; Phoca vitulina, Eumetopias jubatus). Raccoons failed to recognize their now extirpated predators as threatening, spending as much time foraging as when hearing non-predators, which we estimate has substantive impacts, based on results from the larger experiment. We discuss the potentially powerful role of “fearlessness” in exacerbating mesocarnivore impacts in systems where large carnivores have been lost. Data - Dog-Cougar-Seal AnalysesData used in all analyses comparing raccoon responses towards cougars to responses towards dogs and seals.Dog_Cougar_Seal.csvData - Dog-Bear-Seal ... Dataset Phoca vitulina Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care Procyon lotor predation risk Antipredator Behavior playback experiment mesopredator release predator naiveté ecology of fear Gulf Islands British Columbia psy envir |
spellingShingle |
Life sciences medicine and health care Procyon lotor predation risk Antipredator Behavior playback experiment mesopredator release predator naiveté ecology of fear Gulf Islands British Columbia psy envir Suraci, Justin P. Roberts, Devin J. Clinchy, Michael Zanette, Liana Y. Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores |
topic_facet |
Life sciences medicine and health care Procyon lotor predation risk Antipredator Behavior playback experiment mesopredator release predator naiveté ecology of fear Gulf Islands British Columbia psy envir |
description |
By suppressing mesocarnivore foraging, the fear large carnivores inspire can be critical to mitigating mesocarnivore impacts. Where large carnivores have declined, mesocarnivores may quantitatively increase foraging, commensurate with reductions in fear. The extirpation of large carnivores may further exacerbate mesocarnivore impacts by causing qualitative changes in mesocarnivore behavior. Error management theory suggests that, where predators are present, prey should be biased towards over-responsiveness to predator cues, abandoning foraging in response to both predator cues and benign stimuli mistaken for predator cues (false-positives). Where predators are absent, prey may avoid these foraging costs by becoming unresponsive (naïve) to both predator cues and false-positives. If naiveté occurs in mesocarnivores where large carnivores have been extirpated, it could substantively exacerbate their impacts, as “fearless” mesocarnivores may engage in virtually unrestricted foraging. We tested the naiveté of raccoons (Procyon lotor) to extirpated large carnivores in the context of a larger experiment demonstrating that fear of large carnivores can mediate mesocarnivore impacts. Raccoon responsiveness to playbacks of their extirpated large carnivore predators (cougars, Puma concolor; bears, Ursus americanus) was significantly less than to the only extant large carnivore predator (dogs), and was no greater than to non-predators (“seals”; Phoca vitulina, Eumetopias jubatus). Raccoons failed to recognize their now extirpated predators as threatening, spending as much time foraging as when hearing non-predators, which we estimate has substantive impacts, based on results from the larger experiment. We discuss the potentially powerful role of “fearlessness” in exacerbating mesocarnivore impacts in systems where large carnivores have been lost. Data - Dog-Cougar-Seal AnalysesData used in all analyses comparing raccoon responses towards cougars to responses towards dogs and seals.Dog_Cougar_Seal.csvData - Dog-Bear-Seal ... |
format |
Dataset |
author |
Suraci, Justin P. Roberts, Devin J. Clinchy, Michael Zanette, Liana Y. |
author_facet |
Suraci, Justin P. Roberts, Devin J. Clinchy, Michael Zanette, Liana Y. |
author_sort |
Suraci, Justin P. |
title |
Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores |
title_short |
Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores |
title_full |
Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores |
title_fullStr |
Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores |
title_full_unstemmed |
Data from: Fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores |
title_sort |
data from: fearlessness towards extirpated large carnivores may exacerbate the impacts of naïve mesocarnivores |
publisher |
Data Archiving and Networked Services (DANS) |
publishDate |
2016 |
url |
https://doi.org/10.5061/dryad.8128h |
genre |
Phoca vitulina |
genre_facet |
Phoca vitulina |
op_source |
oai:easy.dans.knaw.nl:easy-dataset:96400 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:96400 10.5061/dryad.8128h 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f re3data_____::r3d100000044 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.8128h https://dx.doi.org/10.5061/dryad.8128h |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.8128h |
_version_ |
1766167696001466368 |