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Dark eyes in female...
Dark eyes in female sand gobies indicate readiness to spawn
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- Olsson, Karin H., 1979 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences,University of Gothenburg
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- Johansson, Sandra (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences,University of Gothenburg
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- Blom, Eva-Lotta, 1973 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences,University of Gothenburg
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- Lindstrom, K. (författare)
- Åbo Akademi University, Turku, Finland
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- Svensson, Ola, 1971 (författare)
- Gothenburg University,Göteborgs universitet,Linnécentrum för marin evolutionsbiologi (CEMEB),Institutionen för biologi och miljövetenskap,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),Department of Biological and Environmental Sciences,University of Gothenburg
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- Nilsson Sköld, Helen, 1970 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Sven Lovén centrum för marina vetenskaper,Department of Biological and Environmental Sciences,The Sven Lovén Centre for Marine Sciences,University of Gothenburg
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- Kvarnemo, Charlotta, 1963 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Linnécentrum för marin evolutionsbiologi (CEMEB),Department of Biological and Environmental Sciences,Linnaeus Centre for Marine Evolutionary Biology (CEMEB),University of Gothenburg
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(creator_code:org_t)
- 2017-06-07
- 2017
- Engelska.
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Ingår i: Plos One. - : Public Library of Science (PLoS). - 1932-6203. ; 12:6
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Abstract
Ämnesord
Stäng
- In animals, colorful and conspicuous ornaments enhance individual attractiveness to potential mates, but are typically tempered by natural selection for crypsis and predator protection. In species where males compete for females, this can lead to highly ornamented males competing for mating opportunities with choosy females, and vice versa. However, even where males compete for mating opportunities, females may exhibit conspicuous displays. These female displays are often poorly understood and it may be unclear whether they declare mating intent, signal intrasexual aggression or form a target for male mate preference. We examined the function of the conspicuous dark eyes that female sand gobies temporarily display during courtship by experimentally testing if males preferred to associate with females with artificially darkened eyes and if dark eyes are displayed during female aggression. By observing interactions between a male and two females freely associating in an aquarium we also investigated in which context females naturally displayed dark eyes. We found that dark eyes were more likely to be displayed by more gravid females than less gravid females and possibly ahead of spawning, but that males did not respond behaviorally to dark eyes or prefer dark-eyed females. Females behaving aggressively did not display dark eyes. We suggest that dark eyes are not a signal per se but may be an aspect of female mate choice, possibly related to vision.
Ämnesord
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Nyckelord
- male mate choice
- minutus pallas pisces
- sexual selection
- pomatoschistus-minutus
- poecilia-reticulata
- natural-selection
- convict
- cichlids
- mating patterns
- color patterns
- fish
- Science & Technology - Other Topics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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