There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivity

Abstract Several years ago we tested whether goshawk (accipiter genitilis) productivity increased with increasing similarity of goshawk breeding areas to Forest Service recommendations for the northern goshawk in the southwestern United States. Surprisingly, we found that nest productivity declined...

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Main Authors: Paul Beier, Michael F. Ingraldi
Format: Article
Language:English
Published: Wiley 2012-03-01
Series:Wildlife Society Bulletin
Subjects:
Online Access:https://doi.org/10.1002/wsb.122
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author Paul Beier
Michael F. Ingraldi
author_facet Paul Beier
Michael F. Ingraldi
author_sort Paul Beier
collection DOAJ
description Abstract Several years ago we tested whether goshawk (accipiter genitilis) productivity increased with increasing similarity of goshawk breeding areas to Forest Service recommendations for the northern goshawk in the southwestern United States. Surprisingly, we found that nest productivity declined as similarity to the recommendations increased from 21% to 57% (Beier et al. 2008). Reynolds et al. (2012) argued that this pattern may have been the result of flawed measurements and analyses, and suggested alternative methods and analyses. Although their suggestions have merit, it is unlikely such changes would have altered the negative trend we observed. Reynolds et al. (2012) also argued that goshawk reproduction might increase as similarity with Forest Service recommendations increases from 57% to 100%. We agree that a larger sample of breeding areas, spanning the full spectrum of similarity to the recommendations, would provide a more powerful evaluation of the recommendations. We suggest that the Forest Service conduct such an evaluation using data for all or some of the 121 breeding areas they have monitored for 8–19 years each. © 2012 The Wildlife Society.
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spelling doaj-art-ce6cdaeddb664d0e8ff61f73e9d224e12024-12-16T11:15:41ZengWileyWildlife Society Bulletin2328-55402012-03-0136115315410.1002/wsb.122There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivityPaul Beier0Michael F. Ingraldi1School of Forestry, Northern Arizona University, Flagstaff, AZ 86001, USAArizona Game and Fish Department, 5000 W. Carefree Highway, Phoenix, AZ 85086, USAAbstract Several years ago we tested whether goshawk (accipiter genitilis) productivity increased with increasing similarity of goshawk breeding areas to Forest Service recommendations for the northern goshawk in the southwestern United States. Surprisingly, we found that nest productivity declined as similarity to the recommendations increased from 21% to 57% (Beier et al. 2008). Reynolds et al. (2012) argued that this pattern may have been the result of flawed measurements and analyses, and suggested alternative methods and analyses. Although their suggestions have merit, it is unlikely such changes would have altered the negative trend we observed. Reynolds et al. (2012) also argued that goshawk reproduction might increase as similarity with Forest Service recommendations increases from 57% to 100%. We agree that a larger sample of breeding areas, spanning the full spectrum of similarity to the recommendations, would provide a more powerful evaluation of the recommendations. We suggest that the Forest Service conduct such an evaluation using data for all or some of the 121 breeding areas they have monitored for 8–19 years each. © 2012 The Wildlife Society.https://doi.org/10.1002/wsb.122accipiter genitilisforest managementforest structurereproductive successnorthern goshawk
spellingShingle Paul Beier
Michael F. Ingraldi
There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivity
Wildlife Society Bulletin
accipiter genitilis
forest management
forest structure
reproductive success
northern goshawk
title There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivity
title_full There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivity
title_fullStr There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivity
title_full_unstemmed There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivity
title_short There is no evidence that the forest service's goshawk recommendations improve goshawk nest productivity
title_sort there is no evidence that the forest service s goshawk recommendations improve goshawk nest productivity
topic accipiter genitilis
forest management
forest structure
reproductive success
northern goshawk
url https://doi.org/10.1002/wsb.122
work_keys_str_mv AT paulbeier thereisnoevidencethattheforestservicesgoshawkrecommendationsimprovegoshawknestproductivity
AT michaelfingraldi thereisnoevidencethattheforestservicesgoshawkrecommendationsimprovegoshawknestproductivity