DHEA and territoriality during the nonbreeding season in male American martens (Martes americana)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027014%3A_____%2F18%3AN0000097" target="_blank" >RIV/00027014:_____/18:N0000097 - isvavai.cz</a>
Result on the web
<a href="https://vuzv.cz/_privat/18096.pdf" target="_blank" >https://vuzv.cz/_privat/18096.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/jmammal/gyy067" target="_blank" >10.1093/jmammal/gyy067</a>
Alternative languages
Result language
angličtina
Original language name
DHEA and territoriality during the nonbreeding season in male American martens (Martes americana)
Original language description
Nonbreeding season territoriality is found in many mammal species irrespective of diet, being found in carnivores, granivores, and herbivores. However, we know the hormonal basis for this behavior in virtually none. American martens (Martes americana) show strong intrasexual, year-round territoriality. We collected serum samples from both territorial and transient males and documented size metrics and movement patterns with live-capture and radiotelemetry from September to June in 3 years in Southeast Alaska. Dehydroepiandrosterone (DHEA—a prohormone that can be converted in the brain to active gonadal hormones) levels were high (comparable to humans and rodents showing nonbreeding season spacing behavior) and did not change over the nonbreeding season in territorial males. In contrast, testosterone levels were low in autumn and increased as the summer breeding season approached. Territorial males were larger than transients in some measures and had higher testosterone levels, but similar DHEA and cortisol levels (total and free). DHEA levels declined with age. Our evidence is consistent with the hypothesis that DHEA, not testosterone, is the basis for territoriality outside the breeding season in martens, but collection of serum from females and experimental manipulations are required to provide conclusive evidence.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10614 - Behavioral sciences biology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Mammalogy
ISSN
0022-2372
e-ISSN
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Volume of the periodical
99
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
826-835
UT code for WoS article
000441801100006
EID of the result in the Scopus database
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