Annual survival rates of migratory shore and upland game birds
ABSTRACT Band recoveries from hunted populations are widely used to estimate survival and harvest rates. We used long‐term (1950–2010) band‐recovery data from the United States and Canada to estimate average survival and recovery rates for juvenile and adult sandhill cranes (Grus canadensis), Americ...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-09-01
|
| Series: | Wildlife Society Bulletin |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/wsb.669 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850064677954912256 |
|---|---|
| author | Todd W. Arnold Cristina N. De Sobrino Hannah M. Specht |
| author_facet | Todd W. Arnold Cristina N. De Sobrino Hannah M. Specht |
| author_sort | Todd W. Arnold |
| collection | DOAJ |
| description | ABSTRACT Band recoveries from hunted populations are widely used to estimate survival and harvest rates. We used long‐term (1950–2010) band‐recovery data from the United States and Canada to estimate average survival and recovery rates for juvenile and adult sandhill cranes (Grus canadensis), American coots (Fulica americana), clapper rails (Rallus longirostris), and Wilson's snipe (Gallinago delicata). Banding data were typically sparse and Brownie recovery rates ( f ) were <1% for most species and age classes, so we also utilized encounters from birds banded and recovered throughout the year, including nonhunting recoveries. Estimated juvenile and adult annual survival rates based on combined dead recoveries were 0.917 (SE = 0.080) and 0.884 (SE = 0.006) for sandhill cranes; 0.325 (SE = 0.025) and 0.583 (SE = 0.008) for American coots; 0.368 (SE = 0.070) and 0.500 (SE = 0.025) for clapper rails; and 0.372 (SE = 0.077) and 0.653 (SE = 0.020) for Wilson's snipe. American coots had sufficient band‐recovery data during 1951–1987 to estimate annual process variation in survival for juveniles (σˆS = 0.017) and adults (σˆS = 0.056). Based on average estimated juvenile and adult survival rates for each species, stable populations could be achieved with average annual recruitment rates (expressed as fledged young per adult in the preseason population) of 0.15 (SD = 0.02) for sandhill cranes, 1.26 (SD = 0.19) for American coots, 1.41 (SD = 0.31) for clapper rails, and 0.97 (SD = 0.23) for Wilson's snipe, with uncertainty reflecting measurement error in survival rates. Although band‐recovery models can be successfully applied to small data sets (e.g., 300–3,000 total recoveries in our analyses), juvenile survival estimates lacked precision and annual variation was inestimable for most species, leading to considerable uncertainty for population modeling efforts. © 2016 The Wildlife Society. |
| format | Article |
| id | doaj-art-be3320a6c0ab42c49ba6a5cb5f80f7aa |
| institution | DOAJ |
| issn | 2328-5540 |
| language | English |
| publishDate | 2016-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Wildlife Society Bulletin |
| spelling | doaj-art-be3320a6c0ab42c49ba6a5cb5f80f7aa2025-08-20T02:49:15ZengWileyWildlife Society Bulletin2328-55402016-09-0140347047610.1002/wsb.669Annual survival rates of migratory shore and upland game birdsTodd W. Arnold0Cristina N. De Sobrino1Hannah M. Specht2Department of Fisheries, Wildlife, and Conservation BiologyUniversity of MinnesotaSt. PaulMN55108USADepartment of Fisheries, Wildlife, and Conservation BiologyUniversity of MinnesotaSt. PaulMN55108USAConservation Biology Graduate ProgramUniversity of MinnesotaSt. PaulMN55108USAABSTRACT Band recoveries from hunted populations are widely used to estimate survival and harvest rates. We used long‐term (1950–2010) band‐recovery data from the United States and Canada to estimate average survival and recovery rates for juvenile and adult sandhill cranes (Grus canadensis), American coots (Fulica americana), clapper rails (Rallus longirostris), and Wilson's snipe (Gallinago delicata). Banding data were typically sparse and Brownie recovery rates ( f ) were <1% for most species and age classes, so we also utilized encounters from birds banded and recovered throughout the year, including nonhunting recoveries. Estimated juvenile and adult annual survival rates based on combined dead recoveries were 0.917 (SE = 0.080) and 0.884 (SE = 0.006) for sandhill cranes; 0.325 (SE = 0.025) and 0.583 (SE = 0.008) for American coots; 0.368 (SE = 0.070) and 0.500 (SE = 0.025) for clapper rails; and 0.372 (SE = 0.077) and 0.653 (SE = 0.020) for Wilson's snipe. American coots had sufficient band‐recovery data during 1951–1987 to estimate annual process variation in survival for juveniles (σˆS = 0.017) and adults (σˆS = 0.056). Based on average estimated juvenile and adult survival rates for each species, stable populations could be achieved with average annual recruitment rates (expressed as fledged young per adult in the preseason population) of 0.15 (SD = 0.02) for sandhill cranes, 1.26 (SD = 0.19) for American coots, 1.41 (SD = 0.31) for clapper rails, and 0.97 (SD = 0.23) for Wilson's snipe, with uncertainty reflecting measurement error in survival rates. Although band‐recovery models can be successfully applied to small data sets (e.g., 300–3,000 total recoveries in our analyses), juvenile survival estimates lacked precision and annual variation was inestimable for most species, leading to considerable uncertainty for population modeling efforts. © 2016 The Wildlife Society.https://doi.org/10.1002/wsb.669American cootannual survivalBrownie recovery modelsclapper railmigratory shore and upland game birdspopulation projection models |
| spellingShingle | Todd W. Arnold Cristina N. De Sobrino Hannah M. Specht Annual survival rates of migratory shore and upland game birds Wildlife Society Bulletin American coot annual survival Brownie recovery models clapper rail migratory shore and upland game birds population projection models |
| title | Annual survival rates of migratory shore and upland game birds |
| title_full | Annual survival rates of migratory shore and upland game birds |
| title_fullStr | Annual survival rates of migratory shore and upland game birds |
| title_full_unstemmed | Annual survival rates of migratory shore and upland game birds |
| title_short | Annual survival rates of migratory shore and upland game birds |
| title_sort | annual survival rates of migratory shore and upland game birds |
| topic | American coot annual survival Brownie recovery models clapper rail migratory shore and upland game birds population projection models |
| url | https://doi.org/10.1002/wsb.669 |
| work_keys_str_mv | AT toddwarnold annualsurvivalratesofmigratoryshoreanduplandgamebirds AT cristinandesobrino annualsurvivalratesofmigratoryshoreanduplandgamebirds AT hannahmspecht annualsurvivalratesofmigratoryshoreanduplandgamebirds |