Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ...
1. There is growing evidence that prey perceive the risk of predation and alter their behaviour in response, resulting in changes in spatial distribution and potential fitness consequences. Previous approaches to mapping predation risk across a landscape quantify predator space use to estimate poten...
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Online Access: | https://dx.doi.org/10.5061/dryad.2ngf1vhpv https://datadryad.org/stash/dataset/doi:10.5061/dryad.2ngf1vhpv |
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ftdatacite:10.5061/dryad.2ngf1vhpv 2024-02-04T10:05:08+01:00 Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ... MacAulay, Kara Spilker, Eric Berg, Jodi Hebblewhite, Mark Merrill, Evelyn 2021 https://dx.doi.org/10.5061/dryad.2ngf1vhpv https://datadryad.org/stash/dataset/doi:10.5061/dryad.2ngf1vhpv en eng Dryad https://www.authorea.com/users/413428/articles/521746-predicting-multi-predator-risk-to-elk-cervus-canadensis-using-scats-are-migrant-elk-exposed-to-different-predation-risk Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 FOS Natural sciences Dataset dataset 2021 ftdatacite https://doi.org/10.5061/dryad.2ngf1vhpv 2024-01-05T00:42:33Z 1. There is growing evidence that prey perceive the risk of predation and alter their behaviour in response, resulting in changes in spatial distribution and potential fitness consequences. Previous approaches to mapping predation risk across a landscape quantify predator space use to estimate potential predator-prey encounters, yet this approach does not account for successful predator attack resulting in prey mortality. An exception is a prey kill site that reflects an encounter resulting in mortality, but obtaining information on kill sites is expensive and requires time to accumulate adequate sample sizes. 2. We illustrate an alternative approach using predator scat locations and their contents to quantify spatial predation risk for elk (Cervus canadensis) from multiple predators in the Rocky Mountains of Alberta, Canada. We surveyed over 1300km to detect scats of bears (Ursus arctos/U. americanus), cougars (Puma concolor), coyotes (Canis latrans), and wolves (C. lupus). To derive spatial predation risk, ... : Scat locations and scat contents [YHT_scat_locs_contents.csv] We collected scats using scat-detection dogs along transects randomly located within a systematic grid of 57 5 x 5-km cells during 1 July – 30 September, 2013– 2016. Upon scat detection, we recorded age of scat, scat diameter and physical description to identify scats to species (Weaver & Fritts, 1979; Rezendes, 1992; Elbroch, 2003), and collected DNA on a subsample of scats to assess our species identification accuracy. Age of scats was adapted from Wasser et al. (2004) and included fresh to very old (Spilker 2019). We omitted old scats judged to be deposited prior to 1 May from all analyses. We combined grizzly and black bears into one ursid category because we found low accuracy in our ability to discriminate the two based on DNA (< 65% correctly classified, n = 24; Spilker, 2019). We developed RSFs for predators (Manly et al., 2002), where ‘used’ samples were the locations of predator-specific scats along transect lines and ‘available’ ... Dataset Ursus arctos DataCite Metadata Store (German National Library of Science and Technology) Canada Weaver ENVELOPE(-153.833,-153.833,-86.967,-86.967) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
FOS Natural sciences |
spellingShingle |
FOS Natural sciences MacAulay, Kara Spilker, Eric Berg, Jodi Hebblewhite, Mark Merrill, Evelyn Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ... |
topic_facet |
FOS Natural sciences |
description |
1. There is growing evidence that prey perceive the risk of predation and alter their behaviour in response, resulting in changes in spatial distribution and potential fitness consequences. Previous approaches to mapping predation risk across a landscape quantify predator space use to estimate potential predator-prey encounters, yet this approach does not account for successful predator attack resulting in prey mortality. An exception is a prey kill site that reflects an encounter resulting in mortality, but obtaining information on kill sites is expensive and requires time to accumulate adequate sample sizes. 2. We illustrate an alternative approach using predator scat locations and their contents to quantify spatial predation risk for elk (Cervus canadensis) from multiple predators in the Rocky Mountains of Alberta, Canada. We surveyed over 1300km to detect scats of bears (Ursus arctos/U. americanus), cougars (Puma concolor), coyotes (Canis latrans), and wolves (C. lupus). To derive spatial predation risk, ... : Scat locations and scat contents [YHT_scat_locs_contents.csv] We collected scats using scat-detection dogs along transects randomly located within a systematic grid of 57 5 x 5-km cells during 1 July – 30 September, 2013– 2016. Upon scat detection, we recorded age of scat, scat diameter and physical description to identify scats to species (Weaver & Fritts, 1979; Rezendes, 1992; Elbroch, 2003), and collected DNA on a subsample of scats to assess our species identification accuracy. Age of scats was adapted from Wasser et al. (2004) and included fresh to very old (Spilker 2019). We omitted old scats judged to be deposited prior to 1 May from all analyses. We combined grizzly and black bears into one ursid category because we found low accuracy in our ability to discriminate the two based on DNA (< 65% correctly classified, n = 24; Spilker, 2019). We developed RSFs for predators (Manly et al., 2002), where ‘used’ samples were the locations of predator-specific scats along transect lines and ‘available’ ... |
format |
Dataset |
author |
MacAulay, Kara Spilker, Eric Berg, Jodi Hebblewhite, Mark Merrill, Evelyn |
author_facet |
MacAulay, Kara Spilker, Eric Berg, Jodi Hebblewhite, Mark Merrill, Evelyn |
author_sort |
MacAulay, Kara |
title |
Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ... |
title_short |
Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ... |
title_full |
Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ... |
title_fullStr |
Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ... |
title_full_unstemmed |
Data from: Predicting multi-predator risk to elk (Cervus canadensis) in summer using predator scats ... |
title_sort |
data from: predicting multi-predator risk to elk (cervus canadensis) in summer using predator scats ... |
publisher |
Dryad |
publishDate |
2021 |
url |
https://dx.doi.org/10.5061/dryad.2ngf1vhpv https://datadryad.org/stash/dataset/doi:10.5061/dryad.2ngf1vhpv |
long_lat |
ENVELOPE(-153.833,-153.833,-86.967,-86.967) |
geographic |
Canada Weaver |
geographic_facet |
Canada Weaver |
genre |
Ursus arctos |
genre_facet |
Ursus arctos |
op_relation |
https://www.authorea.com/users/413428/articles/521746-predicting-multi-predator-risk-to-elk-cervus-canadensis-using-scats-are-migrant-elk-exposed-to-different-predation-risk |
op_rights |
Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode cc0-1.0 |
op_doi |
https://doi.org/10.5061/dryad.2ngf1vhpv |
_version_ |
1789974116959256576 |