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Author |
Dalmau, A.; Ferret, A.; Chacon, G.; Manteca, X. |
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Title |
Seasonal Changes in Fecal Cortisol Metabolites in Pyrenean Chamois |
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Journal Article |
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Year |
2007 |
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Journal of Wildlife Management |
Abbreviated Journal |
J Wildl Manag |
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71 |
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1 |
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190-194 |
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Cadí-Moixeró, Nature Reserve, chamois, cortisol metabolites, feces, hunting reserve, Pyrenees, Rupicapra pyrenaica pyrenaica, seasonal rhythm, stress |
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Abstract |
We studied seasonal changes in fecal cortisol metabolites (FCM), which have been widely used as indicators of stress, in a population of Pyrenean chamois (Rupicapra pyrenaica pyrenaica) in the Cadí Range of northeastern Spain. We collected fecal samples from 2001 to 2003 in 3 particular locations with different altitudes and male or female presence, and we analyzed them for FCM and fecal nitrogen as an indicator of diet quality. We observed a clear seasonal pattern, with the highest FCM in winter, and we obtained correlations between FCM and monthly mean minimum temperatures and fecal nitrogen. We observed no effects of tourism presence, trophy hunting, or rut season on FCM. Analysis of cortisol metabolites in feces can be a good measure of winter stress in Pyrenean chamois. |
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Equine Behaviour @ team @ |
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4254 |
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Author |
Goodloe, R.B |
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Title |
Population characteristics of feral horses on Cumberland Island, Georgia and their management implications |
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Journal Article |
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Year |
2000 |
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Journal of Wildlife Management |
Abbreviated Journal |
J Wildl Manag |
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64 |
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1 |
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114-121 |
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937-2817 |
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Equine Behaviour @ team @ |
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2296 |
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Kirkpatrick, J. F.; Kasman, L. H.; Lasley,; B. L.; Turner, J. W. Jr. |
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Title |
Pregnancy Determination in Uncaptured Feral Horses |
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Journal Article |
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1988 |
Publication |
Journal of Wildlife Management |
Abbreviated Journal |
J Wildl Manag |
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52 |
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2 |
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305-308 |
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The urinary excretion of estrone sulfate ($\text{E}{1}\text{S}$) by 25 free-roaming feral horses (Equus caballus) was measured by radioimmunoassay applied to extracts of urine-soaked soil. Twelve of 15 mares having $\text{E}{1}\text{S}$ concentrations >1.0 mg/mg creatinine (x = 2.64 +- 1.02 [SD]) produced foals. All 10 mares with $\text{E}{1}\text{S}$ concentrations <1.0 mg/mg creatinine (x = 0.44 +- 0.26) did not foal. Extracting urine from soil and measuring $\text{E}{1}\text{S}$ and creatinine can be used to determine pregnancy in free-roaming feral horses without the stress of capture or immobilization. |
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Equine Behaviour @ team @ |
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2290 |
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