Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus)
1. Understanding the population dynamics of top predators is essential to assess their impact on ecosystems and to guide their management. Key to this understanding is identifying the mechanisms regulating vital rates. 2. Determining the influence of density on survival is necessary to understand th...
Main Authors: | , , , , , , |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
2015
|
Subjects: | |
Online Access: | https://zenodo.org/record/4998659 https://doi.org/10.5061/dryad.f32n1 |
id |
ftzenodo:oai:zenodo.org:4998659 |
---|---|
record_format |
openpolar |
spelling |
ftzenodo:oai:zenodo.org:4998659 2023-05-15T15:49:41+02:00 Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus) Cubaynes, Sarah Mac Nulty, Daniel R. Stahler, Daniel R. Quimby, Kira A. Smith, Douglas W. Coulson, Tim MacNulty, Daniel R. 2015-04-02 https://zenodo.org/record/4998659 https://doi.org/10.5061/dryad.f32n1 unknown doi:10.1111/1365-2656.12238 https://zenodo.org/communities/dryad https://zenodo.org/record/4998659 https://doi.org/10.5061/dryad.f32n1 oai:zenodo.org:4998659 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Density-dependence Cervus elaphus capture-recapture top predator food availability snow water equivalent Canis lupus Modern info:eu-repo/semantics/other dataset 2015 ftzenodo https://doi.org/10.5061/dryad.f32n110.1111/1365-2656.12238 2023-03-10T17:43:08Z 1. Understanding the population dynamics of top predators is essential to assess their impact on ecosystems and to guide their management. Key to this understanding is identifying the mechanisms regulating vital rates. 2. Determining the influence of density on survival is necessary to understand the extent to which human-caused mortality is compensatory or additive. In wolves (Canis lupus), empirical evidence for density-dependent survival is lacking. Dispersal is considered the principal way in which wolves adjust their numbers to prey supply or compensate for human exploitation. However, studies to date have primarily focused on exploited wolf populations, in which density-dependent mechanisms are likely weak due to artificially low wolf densities. 3. Using 13 years of data on 280 collared wolves in Yellowstone National Park, we assessed the effect of wolf density, prey abundance and population structure, as well as winter severity, on age-specific survival in two areas (prey-rich vs. prey-poor) of the national park. We further analysed cause-specific mortality and explored the factors driving intraspecific aggression in the prey-rich northern area of the park. 4. Overall, survival rates decreased during the study. In northern Yellowstone, density-dependence regulated adult survival through an increase in intraspecific aggression, independent of prey availability. In the interior of the park, adult survival was less variable and density-independent, despite reduced prey availability. There was no effect of prey population structure in northern Yellowstone, nor of winter severity in either area. Survival was similar among yearlings and adults, but lower for adults older than 6 years. 5. Our results indicate that density-dependent intraspecific aggression is a major driver of adult wolf survival in northern Yellowstone, suggesting intrinsic density-dependent mechanisms have the potential to regulate wolf populations at high ungulate densities. When low prey availability or high removal rates maintain wolves at ... Dataset Canis lupus Zenodo |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Density-dependence Cervus elaphus capture-recapture top predator food availability snow water equivalent Canis lupus Modern |
spellingShingle |
Density-dependence Cervus elaphus capture-recapture top predator food availability snow water equivalent Canis lupus Modern Cubaynes, Sarah Mac Nulty, Daniel R. Stahler, Daniel R. Quimby, Kira A. Smith, Douglas W. Coulson, Tim MacNulty, Daniel R. Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus) |
topic_facet |
Density-dependence Cervus elaphus capture-recapture top predator food availability snow water equivalent Canis lupus Modern |
description |
1. Understanding the population dynamics of top predators is essential to assess their impact on ecosystems and to guide their management. Key to this understanding is identifying the mechanisms regulating vital rates. 2. Determining the influence of density on survival is necessary to understand the extent to which human-caused mortality is compensatory or additive. In wolves (Canis lupus), empirical evidence for density-dependent survival is lacking. Dispersal is considered the principal way in which wolves adjust their numbers to prey supply or compensate for human exploitation. However, studies to date have primarily focused on exploited wolf populations, in which density-dependent mechanisms are likely weak due to artificially low wolf densities. 3. Using 13 years of data on 280 collared wolves in Yellowstone National Park, we assessed the effect of wolf density, prey abundance and population structure, as well as winter severity, on age-specific survival in two areas (prey-rich vs. prey-poor) of the national park. We further analysed cause-specific mortality and explored the factors driving intraspecific aggression in the prey-rich northern area of the park. 4. Overall, survival rates decreased during the study. In northern Yellowstone, density-dependence regulated adult survival through an increase in intraspecific aggression, independent of prey availability. In the interior of the park, adult survival was less variable and density-independent, despite reduced prey availability. There was no effect of prey population structure in northern Yellowstone, nor of winter severity in either area. Survival was similar among yearlings and adults, but lower for adults older than 6 years. 5. Our results indicate that density-dependent intraspecific aggression is a major driver of adult wolf survival in northern Yellowstone, suggesting intrinsic density-dependent mechanisms have the potential to regulate wolf populations at high ungulate densities. When low prey availability or high removal rates maintain wolves at ... |
format |
Dataset |
author |
Cubaynes, Sarah Mac Nulty, Daniel R. Stahler, Daniel R. Quimby, Kira A. Smith, Douglas W. Coulson, Tim MacNulty, Daniel R. |
author_facet |
Cubaynes, Sarah Mac Nulty, Daniel R. Stahler, Daniel R. Quimby, Kira A. Smith, Douglas W. Coulson, Tim MacNulty, Daniel R. |
author_sort |
Cubaynes, Sarah |
title |
Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus) |
title_short |
Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus) |
title_full |
Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus) |
title_fullStr |
Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus) |
title_full_unstemmed |
Data from: Density-dependent intraspecific aggression regulates survival in northern Yellowstone wolves (Canis lupus) |
title_sort |
data from: density-dependent intraspecific aggression regulates survival in northern yellowstone wolves (canis lupus) |
publishDate |
2015 |
url |
https://zenodo.org/record/4998659 https://doi.org/10.5061/dryad.f32n1 |
genre |
Canis lupus |
genre_facet |
Canis lupus |
op_relation |
doi:10.1111/1365-2656.12238 https://zenodo.org/communities/dryad https://zenodo.org/record/4998659 https://doi.org/10.5061/dryad.f32n1 oai:zenodo.org:4998659 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.f32n110.1111/1365-2656.12238 |
_version_ |
1766384710239387648 |