Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta)
Winter conditions impose hardships on waterfowl, impacting how they apportion energy and time. Human disturbances may affect this energetic balance, influence lipid reserves, and potentially survival. Objectives of this study were to determine effects of environmental and anthropogenic factors on en...
Main Authors: | , , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
DigitalCommons@University of Nebraska - Lincoln
2019
|
Subjects: | |
Online Access: | https://digitalcommons.unl.edu/usfwspubs/558 https://digitalcommons.unl.edu/context/usfwspubs/article/1551/viewcontent/Taylor_WATERBIRDS_2019_Influence_of_Environmental_Stress.pdf |
id |
ftunivnebraskali:oai:digitalcommons.unl.edu:usfwspubs-1551 |
---|---|
record_format |
openpolar |
spelling |
ftunivnebraskali:oai:digitalcommons.unl.edu:usfwspubs-1551 2023-11-12T04:01:00+01:00 Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta) Taylor, Dustin P. Dvorett, Daniel A. Vradenburg, John N. Smith, Loren M. 2019-06-20T07:00:00Z application/pdf https://digitalcommons.unl.edu/usfwspubs/558 https://digitalcommons.unl.edu/context/usfwspubs/article/1551/viewcontent/Taylor_WATERBIRDS_2019_Influence_of_Environmental_Stress.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/usfwspubs/558 https://digitalcommons.unl.edu/context/usfwspubs/article/1551/viewcontent/Taylor_WATERBIRDS_2019_Influence_of_Environmental_Stress.pdf US Fish & Wildlife Publications disturbance energetics environmental stress Northern Pintail thermoregulation wildlife refuge waterfowl winter text 2019 ftunivnebraskali 2023-10-30T09:57:08Z Winter conditions impose hardships on waterfowl, impacting how they apportion energy and time. Human disturbances may affect this energetic balance, influence lipid reserves, and potentially survival. Objectives of this study were to determine effects of environmental and anthropogenic factors on energetic expenditure (kcal/day) of Northern Pintails (Anas acuta) in behaviors commonly associated with a disturbance response (alert, locomotion, and flight) during winter 2008-2009 and 2009-2010 at Bosque del Apache National Wildlife Refuge in central New Mexico, USA. The refuge is a frequently visited ecotourism destination with over 170,000 visitors each winter. Thermoregulatory cost, time-of-winter, amount of natural and anthropogenic disturbances, and forage availability were examined to determine their influence on pintail energetic response (e.g., flight, locomotion, alert behavior). Average number of pintails ranged from 7,524-15,769. Using Akaike Information Criteria, the top-ranked model indicated that increased thermoregulatory cost, and by association decreased temperature, may cause a decline in energetic response of pintails to disturbances. Modeled values for energetic response had a mean (± SE) of 175 ± 11.5 kcal/day in year 1, and 111.7 ± 7.22 kcal/day in year 2. Neither the amount of disturbance nor forage availability strongly influenced energetic response. Results of this study raise questions about the efficacy of using behavior or energy expenditure data, alone, to assess anthropogenic disturbance effects on waterfowl. Text Anas acuta University of Nebraska-Lincoln: DigitalCommons@UNL |
institution |
Open Polar |
collection |
University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
disturbance energetics environmental stress Northern Pintail thermoregulation wildlife refuge waterfowl winter |
spellingShingle |
disturbance energetics environmental stress Northern Pintail thermoregulation wildlife refuge waterfowl winter Taylor, Dustin P. Dvorett, Daniel A. Vradenburg, John N. Smith, Loren M. Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta) |
topic_facet |
disturbance energetics environmental stress Northern Pintail thermoregulation wildlife refuge waterfowl winter |
description |
Winter conditions impose hardships on waterfowl, impacting how they apportion energy and time. Human disturbances may affect this energetic balance, influence lipid reserves, and potentially survival. Objectives of this study were to determine effects of environmental and anthropogenic factors on energetic expenditure (kcal/day) of Northern Pintails (Anas acuta) in behaviors commonly associated with a disturbance response (alert, locomotion, and flight) during winter 2008-2009 and 2009-2010 at Bosque del Apache National Wildlife Refuge in central New Mexico, USA. The refuge is a frequently visited ecotourism destination with over 170,000 visitors each winter. Thermoregulatory cost, time-of-winter, amount of natural and anthropogenic disturbances, and forage availability were examined to determine their influence on pintail energetic response (e.g., flight, locomotion, alert behavior). Average number of pintails ranged from 7,524-15,769. Using Akaike Information Criteria, the top-ranked model indicated that increased thermoregulatory cost, and by association decreased temperature, may cause a decline in energetic response of pintails to disturbances. Modeled values for energetic response had a mean (± SE) of 175 ± 11.5 kcal/day in year 1, and 111.7 ± 7.22 kcal/day in year 2. Neither the amount of disturbance nor forage availability strongly influenced energetic response. Results of this study raise questions about the efficacy of using behavior or energy expenditure data, alone, to assess anthropogenic disturbance effects on waterfowl. |
format |
Text |
author |
Taylor, Dustin P. Dvorett, Daniel A. Vradenburg, John N. Smith, Loren M. |
author_facet |
Taylor, Dustin P. Dvorett, Daniel A. Vradenburg, John N. Smith, Loren M. |
author_sort |
Taylor, Dustin P. |
title |
Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta) |
title_short |
Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta) |
title_full |
Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta) |
title_fullStr |
Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta) |
title_full_unstemmed |
Influence of Environmental Stress and Anthropogenic Disturbance on the Energy Expenditure of Wintering Northern Pintails (Anas acuta) |
title_sort |
influence of environmental stress and anthropogenic disturbance on the energy expenditure of wintering northern pintails (anas acuta) |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
2019 |
url |
https://digitalcommons.unl.edu/usfwspubs/558 https://digitalcommons.unl.edu/context/usfwspubs/article/1551/viewcontent/Taylor_WATERBIRDS_2019_Influence_of_Environmental_Stress.pdf |
genre |
Anas acuta |
genre_facet |
Anas acuta |
op_source |
US Fish & Wildlife Publications |
op_relation |
https://digitalcommons.unl.edu/usfwspubs/558 https://digitalcommons.unl.edu/context/usfwspubs/article/1551/viewcontent/Taylor_WATERBIRDS_2019_Influence_of_Environmental_Stress.pdf |
_version_ |
1782329198073872384 |