【摘 要】
:
Background: Extra-pair copulation behavior has been widely studied among socially monogamous birds. Many spe-cies revealed high rates of extra-pair paternity. But few of the studies have been carried out in the Asian population. Methods: From 2012 to 2019
【机 构】
:
Laboratory of Animal Resource and Epidemic Disease Prevention,Department of Life Sciences,Liaoning U
论文部分内容阅读
Background: Extra-pair copulation behavior has been widely studied among socially monogamous birds. Many spe-cies revealed high rates of extra-pair paternity. But few of the studies have been carried out in the Asian population. Methods: From 2012 to 2019, we explored the extra-pair paternity of Marsh Tits (Poecile palustris) in Xianrendong National Nature Reserve, Liaoning Province, China. During the study, adult Marsh Tits were captured with mist nets and parental birds, with nest-box traps. Blood samples were taken from the brachial vein. Parentage analyses were car-ried out using nine highly variable microsatellite loci through Cervus 3.0 software and maximum likelihood approach. Results: Forty-nine offspring (15.08%) from 20 nests (45.45%) were the results of extra-pair fertilization out of a total of 325 offspring in 44 nests. The average extra-pair offspring ratio was 33.54%, with a set varying from 11.11 to 71.43%. Nine extra-pair fathers had been successfully identified, four of whom were the close neighbors of the focus nest while the nests of the remaining five were relatively far. No significant difference was found in the genetic similarity between the social and extra-pair mates of the female, nor in the heterozygosis among the maternal half-siblings. Conclusions: In general, our study proved that the extra-pair paternity in Marsh Tits and its extra-pair mating is independent of the genetic compatibility hypothesis. This complements the understudied bird\'s extra-pair paternity in Asian area and contributes to the comprehensive insight of birds\' extra-pair paternity behaviors.
其他文献
Background: The Mesoamerican dominion is a biogeographic area of great interest due to its complex topography and distinctive climatic history. This area has a large diversity of habitats, including tropical deciduous forests, which house a large number o
In this study, we report the first ever documented instances of attempted and successful reproduction (rearing two offspring) of Oriental Storks (Ciconia boyciana) at age 2 years in a wild population in the middle Heilongjiang-Amur River Basin in Russia,
Background: In the face of continued degradation and loss of wetlands in the Yangtze River floodplain (YRF), there is an urgent need to monitor the abundance and distribution of wintering waterbirds. To understand fully observed annual changes, we need to
Background: Himalayan Griffons (Gyps himalayensis), large scavenging raptors widely distributed in Qinghai-Tibetan Plateau, have evolved a remarkable ability to feed on carcasses without suffering any adverse effects. The gut micro-biome plays an importan
Nepal, a small landlocked country in South Asia, holds about 800 km of Himalayan Mountain range including the Earth\'s highest mountain. Within such a mountain range in the north and plain lowlands in the south, Nepal provides a habitat for about 9% of
Background: Efficient and selective utilization of metabolic substrates is one of the key strategies in high-altitude animals to cope with hypoxia and hypothermia. Previous findings have shown that the energy substrate utilization of highland animals vari
Background: For cavity-nesting birds, the nest entrance plays an important role in preventing predators from accessing nests. Several species of nuthatches use mud to narrow the entrance of cavities. In theory, the smaller the entrance hole size, the more
Breeding philopatry is well known in the Black-headed Gull (Chroicocephalus ridibundus). Using a capture-mark-recapture method, we studied if Black-headed Gulls show nest site tenacity and mate fidelity as well, and investigated if there are differences b
Background: Seven out of ten hornbill species in the Philippines are threatened with extinction. Among these is the endangered Visayan Hornbill (Penelopides panini), found on the islands of Panay and Negros. Threatened by habitat loss and hunting, its pop
Background: Grit is used by birds mainly for grinding hard food items but can also serve a nutritional role as a source of minerals. Ingestion of grit by birds has been documented primarily in species that feed on seeds and invertebrates. Although feeding