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Do Larger and Older Individuals Occupy Better Areas in the Colony of Qinghai Toad-headed Agamas?статья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 февраля 2024 г.
- Авторы: GALOYAN Eduard, SOPILKO Natalia, KOVALYEVA Anna, QI Yin
- Журнал: Asian Herpetological Research
- Том: 14
- Номер: 3
- Год издания: 2023
- Издательство: Chengdu Institute of Biology, Chinese Academy of Sciences, Science Press, in cooperation with the Asiatic Herpetological Research Society
- Местоположение издательства: China, China
- Первая страница: 183
- Последняя страница: 190
- DOI: 10.3724/ahr.2095-0357.2022.0068
- Аннотация: Group living reduces the chances of predation. This is also true for burrowing animals, which use burrows as refuges to escape predators. Living in the center of a colony is the safest because it offers access to the greatest number of burrows; however, it is stressful due to frequent aggressive interactions there. We predicted that larger and older animals should occupy areas of a colony with a higher density of burrows than smaller and younger ones. To test this prediction, we observed individually marked Qinghai toad-headed agamas (Phynocephalus vlangalii) from a single colony late in the breeding season when females were gravid. Density of burrows was the highest and distance between them the shortest in the center of the colony. Aggressive encounters were more frequent in the central part of the colony than on its periphery. We found a negative correlation between body size and distance to the center of the colony for females, but not for males. There was no such correlation between age of individuals and distance to the center of the colony. Females in this species likely compete with other females and males for central burrows in the colony even after mating season finishes. We suggest that gravid females likely compete for the dense burrows within the central part of the colony mainly due to their relatively lower sprint speed and higher probability of being caught by a predator if they are not refuged in a burrow.
- Добавил в систему: Галоян Эдуард Арташесович