Assessment of Flooring Renovations on African Elephant (Loxodonta africana) Behavior and Glucocorticoid Response

Captive African (Loxodonta africana) and Asian (Elephas maximus) elephants can experience foot pathologies and arthritis. As a preventative measure against these pathologies and to alleviate the potential discomfort due to concrete substrates, some zoological institutions have renovated elephant hou...

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Published in:PloS one 2015-11, Vol.10 (11), p.e0141009-e0141009
Main Authors: Boyle, Sarah A, Roberts, Beth, Pope, Brittany M, Blake, Margaret R, Leavelle, Stephen E, Marshall, Jennifer J, Smith, Andrew, Hadicke, Amanda, Falcone, Josephine F, Knott, Katrina, Kouba, Andrew J
Format: Article
Language:English
Subjects:
African elephant
Ailuropoda melanoleuca
Analysis
Animal behavior
Animal welfare
Animals
Arthritis
Concrete
Construction
Cortisol
Diurnal
Elephants
Elephants - blood
Elephas maximus
Enzyme immunoassay
Feeding Behavior
Female
Females
Genetic aspects
Glucocorticoids
Housing
Hydrocortisone - blood
Immunoassay
Loxodonta africana
National parks
Nocturnal
Panthera pardus
Physiological aspects
Physiological responses
Pregnancy
Renovation
Rest
Sampling methods
Steroids (Organic compounds)
Stress, Psychological - blood
Substrates
Walking
Zoos
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container_issue 11
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creator Boyle, Sarah A
Roberts, Beth
Pope, Brittany M
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Marshall, Jennifer J
Smith, Andrew
Hadicke, Amanda
Falcone, Josephine F
Knott, Katrina
Kouba, Andrew J
description Captive African (Loxodonta africana) and Asian (Elephas maximus) elephants can experience foot pathologies and arthritis. As a preventative measure against these pathologies and to alleviate the potential discomfort due to concrete substrates, some zoological institutions have renovated elephant housing to increase the amount of natural or shock-absorbent substrates. The objective of this study was to compare behavioral (diurnal and nocturnal) and glucorticoid (e.g., serum cortisol) responses of three female African elephants before, during, and after renovation to their indoor housing floor to assess whether renovations had short-term effects on the elephants' behavior and stress physiology. Behavioral data were collected using scan-sampling methods, and activity budgets were constructed for each of the three elephants. In addition, the duration of all lying rest activities were recorded. Weekly serum cortisol concentrations were determined with enzyme immunoassay (EIA). Overall, eating was the most prevalent behavior exhibited outdoors during the day, while resting (either in a lying or standing position) were most common during the indoor, nocturnal periods. Although variation existed among the three elephants, all three females spent significantly more time walking and less time eating during the day after the completion of the renovations. The extent to which the three elephants exhibited nocturnal lying rest behavior varied among the elephants, with the oldest elephant exhibiting the least amount (an average of 13.2 ± 2.8% of the nightly behavioral scans) compared to the two younger elephants (an average of 34.5 ± 2.1% and 56.6 ± 2.8% of the nightly behavioral scans). There was a significant increase in lying rest behavior for one elephant and standing rest for a second elephant following renovations. Baseline cortisol concentrations prior to renovations were 3.0 ± 0.4 ng/ml, 4.5 ± 0.5 ng/ml, and 4.9 ± 0.5 ng/ml for the three elephants. Cortisol concentrations remained baseline for two of the elephants throughout and after the renovation period, while one elephant that was pregnant had elevated cortisol during construction. Cortisol concentrations for the pregnant elephant remained higher than baseline once she was introduced to the new flooring and allowed back into the building, but these values were closer to the cortisol concentrations before renovations than during construction. Our findings demonstrate that individual elephants can vary in thei
doi_str_mv 10.1371/journal.pone.0141009
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As a preventative measure against these pathologies and to alleviate the potential discomfort due to concrete substrates, some zoological institutions have renovated elephant housing to increase the amount of natural or shock-absorbent substrates. The objective of this study was to compare behavioral (diurnal and nocturnal) and glucorticoid (e.g., serum cortisol) responses of three female African elephants before, during, and after renovation to their indoor housing floor to assess whether renovations had short-term effects on the elephants' behavior and stress physiology. Behavioral data were collected using scan-sampling methods, and activity budgets were constructed for each of the three elephants. In addition, the duration of all lying rest activities were recorded. Weekly serum cortisol concentrations were determined with enzyme immunoassay (EIA). Overall, eating was the most prevalent behavior exhibited outdoors during the day, while resting (either in a lying or standing position) were most common during the indoor, nocturnal periods. Although variation existed among the three elephants, all three females spent significantly more time walking and less time eating during the day after the completion of the renovations. The extent to which the three elephants exhibited nocturnal lying rest behavior varied among the elephants, with the oldest elephant exhibiting the least amount (an average of 13.2 ± 2.8% of the nightly behavioral scans) compared to the two younger elephants (an average of 34.5 ± 2.1% and 56.6 ± 2.8% of the nightly behavioral scans). There was a significant increase in lying rest behavior for one elephant and standing rest for a second elephant following renovations. Baseline cortisol concentrations prior to renovations were 3.0 ± 0.4 ng/ml, 4.5 ± 0.5 ng/ml, and 4.9 ± 0.5 ng/ml for the three elephants. Cortisol concentrations remained baseline for two of the elephants throughout and after the renovation period, while one elephant that was pregnant had elevated cortisol during construction. Cortisol concentrations for the pregnant elephant remained higher than baseline once she was introduced to the new flooring and allowed back into the building, but these values were closer to the cortisol concentrations before renovations than during construction. Our findings demonstrate that individual elephants can vary in their behavioral and physiological responses to exhibit modifications. 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Medical Complete (Alumni)</collection><collection>Materials Science Database</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Meteorological &amp; Geoastrophysical Abstracts - Academic</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Biological Science Collection</collection><collection>Agriculture Science Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biological Science Database</collection><collection>Engineering Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>Advanced Technologies &amp; Aerospace Database</collection><collection>ProQuest Advanced Technologies &amp; Aerospace Collection</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environmental Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Boyle, Sarah A</au><au>Roberts, Beth</au><au>Pope, Brittany M</au><au>Blake, Margaret R</au><au>Leavelle, Stephen E</au><au>Marshall, Jennifer J</au><au>Smith, Andrew</au><au>Hadicke, Amanda</au><au>Falcone, Josephine F</au><au>Knott, Katrina</au><au>Kouba, Andrew J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Assessment of Flooring Renovations on African Elephant (Loxodonta africana) Behavior and Glucocorticoid Response</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2015-11-04</date><risdate>2015</risdate><volume>10</volume><issue>11</issue><spage>e0141009</spage><epage>e0141009</epage><pages>e0141009-e0141009</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><notes>Current address: Department of Biology, University of Memphis, Memphis, Tennessee, United States of America</notes><notes>Competing Interests: The authors have declared that no competing interests exist.</notes><notes>Conceived and designed the experiments: SAB BR AS AH AJK. Performed the experiments: SAB BR BMP MRB SEL JJM AS AH JFF KK. Analyzed the data: SAB BR BMP MRB SEL JJM. Wrote the paper: SAB BR BMP MRB JJM JFF KK AJK.</notes><abstract>Captive African (Loxodonta africana) and Asian (Elephas maximus) elephants can experience foot pathologies and arthritis. As a preventative measure against these pathologies and to alleviate the potential discomfort due to concrete substrates, some zoological institutions have renovated elephant housing to increase the amount of natural or shock-absorbent substrates. The objective of this study was to compare behavioral (diurnal and nocturnal) and glucorticoid (e.g., serum cortisol) responses of three female African elephants before, during, and after renovation to their indoor housing floor to assess whether renovations had short-term effects on the elephants' behavior and stress physiology. Behavioral data were collected using scan-sampling methods, and activity budgets were constructed for each of the three elephants. In addition, the duration of all lying rest activities were recorded. Weekly serum cortisol concentrations were determined with enzyme immunoassay (EIA). Overall, eating was the most prevalent behavior exhibited outdoors during the day, while resting (either in a lying or standing position) were most common during the indoor, nocturnal periods. Although variation existed among the three elephants, all three females spent significantly more time walking and less time eating during the day after the completion of the renovations. The extent to which the three elephants exhibited nocturnal lying rest behavior varied among the elephants, with the oldest elephant exhibiting the least amount (an average of 13.2 ± 2.8% of the nightly behavioral scans) compared to the two younger elephants (an average of 34.5 ± 2.1% and 56.6 ± 2.8% of the nightly behavioral scans). There was a significant increase in lying rest behavior for one elephant and standing rest for a second elephant following renovations. Baseline cortisol concentrations prior to renovations were 3.0 ± 0.4 ng/ml, 4.5 ± 0.5 ng/ml, and 4.9 ± 0.5 ng/ml for the three elephants. Cortisol concentrations remained baseline for two of the elephants throughout and after the renovation period, while one elephant that was pregnant had elevated cortisol during construction. Cortisol concentrations for the pregnant elephant remained higher than baseline once she was introduced to the new flooring and allowed back into the building, but these values were closer to the cortisol concentrations before renovations than during construction. Our findings demonstrate that individual elephants can vary in their behavioral and physiological responses to exhibit modifications. Given that the elephants walked more during the day, two of the three elephants had an increase in rest behavior during the night, and there were minimal changes in cortisol response after the flooring renovations, we conclude that the flooring renovations overall had a positive impact on animal welfare.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>26535582</pmid><doi>10.1371/journal.pone.0141009</doi><oa>free_for_read</oa></addata></record>
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identifier ISSN: 1932-6203
ispartof PloS one, 2015-11, Vol.10 (11), p.e0141009-e0141009
issn 1932-6203
1932-6203
language eng
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source Publicly Available Content Database; PubMed Central
subjects African elephant
Ailuropoda melanoleuca
Analysis
Animal behavior
Animal welfare
Animals
Arthritis
Concrete
Construction
Cortisol
Diurnal
Elephants
Elephants - blood
Elephas maximus
Enzyme immunoassay
Feeding Behavior
Female
Females
Genetic aspects
Glucocorticoids
Housing
Hydrocortisone - blood
Immunoassay
Loxodonta africana
National parks
Nocturnal
Panthera pardus
Physiological aspects
Physiological responses
Pregnancy
Renovation
Rest
Sampling methods
Steroids (Organic compounds)
Stress, Psychological - blood
Substrates
Walking
Zoos
title Assessment of Flooring Renovations on African Elephant (Loxodonta africana) Behavior and Glucocorticoid Response
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