Obiekt
Tytuł: Social environment affects beak color in captive male House Sparrows "Passer domesticus"
Tytuł publikacji grupowej:
Abstract:
Black beak color in male House Sparrows ("Passer domesticus") is a secondary sexual characteristic whose expression is directly correlated with testosterone levels. To experimentally determine if social environment affects black beak color and by implication testosterone levels, we housed wild-caught male sparrows either individually (n = 10), "Solo" males, or in the company of two other males (n = 4 "Group"s of 3 males), "Group" males, from 26 May - 7 July 2006. ; We predicted that "Solo" males would lose beak color faster than would "Group" males. We used digital images to monitor beak color once a week starting on 26 May. Beak blackness decreased more quickly and to a greater degree in "Solo" than in "Group" males. These results show that social environment in captivity affected beak color and suggest that male House Sparrows may require physical interactions to maintain breeding season levels of testosterone.
Wydawca:
Zielona Góra: University of Zielona Góra, Faculty of Biological Sciences
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Identyfikator zasobu:
DOI:
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Źródło:
International Studies on Sparrows, vol. 34
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Prawa do dysponowania publikacją:
Biblioteka Uniwersytetu Zielonogórskiego
Kolekcje, do których przypisany jest obiekt:
- Repozytorium > Jednostki organizacyjne > Wydział Nauk Biologicznych
- Repozytorium > Typy utworów > Artykuły
- Repozytorium > Czasopisma naukowe i serie wydawnicze UZ > International Studies on Sparrows
Data ostatniej modyfikacji:
2023-05-17
Data dodania obiektu:
2023-05-04
Liczba wyświetleń treści obiektu:
62
Wszystkie dostępne wersje tego obiektu:
https://zbc.uz.zgora.pl/repozytorium/publication/81555
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International Studies on Sparrows
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International Studies on Sparrows, vol. 44 (2022)
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International Studies on Sparrows, vol. 43 (2019)
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International Studies on Sparrows, vol. 42 (2018)
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International Studies on Sparrows, vol. 41 (2017)
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International Studies on Sparrows, vol. 40 (2016)
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International Studies on Sparrows, vol. 39 (2015)
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International Studies on Sparrows, vol. 38 (2014)
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International Studies on Sparrows, vol. 37 (2013)
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International Studies on Sparrows, vol. 36 (2012)
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International Studies on Sparrows, vol. 35 (2011)
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International Studies on Sparrows, vol. 34 (2010)
- International Studies on Sparrows, vol. 34 (2010) - spis treści
- Granivorous birds in ecosystems
- Social environment affects beak color in captive male House Sparrows "Passer domesticus"
- Seasonality and sociality in tree sparrows "Passer montanus"
- Tree sparrows foraging on elm seeds for more than a month
- Nesting of tree sparrow "Passer montanus" in the nest of common buzzard "Buteo buteo"
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International Studies on Sparrows, vol. 33 (2009)
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International Studies on Sparrows, vol. 32 (2007)
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International Studies on Sparrows, vol. 30 [2005]
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International Studies on Sparrows, vol. 44 (2022)
| Nazwa wydania | Data |
|---|---|
| Social environment affects beak color in captive male House Sparrows "Passer domesticus" | 2023-05-17 |
