红狐的家庭范围、领地和伴侣替换

IF 0.8 4区 生物学 Q3 ORNITHOLOGY Acta Ornithologica Pub Date : 2023-11-10 DOI:10.3161/00016454ao2023.58.1.004
Paulo S. Amorim, André C. Guaraldo, Mariana F. Rossi, Pedro Diniz
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引用次数: 0

摘要

根据动物的繁殖状态和栖息地的复杂性,动物使用家园范围和领土的方式往往会随时间而变化。在热带雀形目动物中,配偶的更替会导致成虫的分散,但人们对配偶更替的季节/性别变化知之甚少。在这里,我们测试了在繁殖期和非繁殖期,红毛狐的栖息地范围和领地大小是否有所变化,以及这种变化在巴西的三个遥远种群(UFJF、UnB和MT)中是否一致。此外,我们还描述了其中两个种群(UFJF和UnB)的伴侣更换频率与性别和繁殖状态的关系。在非繁殖期,两个地点(UFJF和MT)的家范围大小分别减少了33%和38%。在UnB的非繁殖季节,领地面积减少了50%,但这可能是由于该季节取样力度较低。然而,家庭范围的扩大与繁殖季节对资源的更高需求是一致的。家庭范围的大小,而不是领土的大小,在不同的地点有所不同。我们还记录了26次伴侣更换,没有性别或季节偏见的迹象。大多数被替换的鸟类都消失了,这表明两性都面临着相似的死亡风险,这通常是配偶替换的主要原因。在被研究的伴侣中,有25%的伴侣关系持续了三年或更长时间。总之,这些结果为未来的研究提供了见解,这些研究塑造了热带鸟类全年保卫领土的家庭范围、领土和伴侣更换的潜在机制。
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Home Range, Territory, and Partner Replacement in the Rufous Hornero Furnarius rufus
The way an animal uses the home range and territory often vary in time according to its breeding state and habitat complexity. Adult dispersal can follow partner replacement, however little is known about seasonal/sex variation in partner replacement in tropical passerines. Here we tested if home range and territory size of the Rufous Hornero Furnarius rufus varies between the breeding and non-breeding seasons and if this variation is consistent across three distant populations in Brazil (UFJF, UnB, and MT). In addition, we described the frequency of partner replacements in relation to sex and breeding state in two of those populations (UFJF and UnB). We observed a decrease in 33% and 38% of home range size in the non-breeding season for two sites (UFJF and MT). Territory size decreased by 50% in the non-breeding season in UnB, but this could be due to a lower sampling effort during this season. Nevertheless, the home range expansion is consistent with a higher demand for resources during the breeding season. Home range sizes, but not sizes of territories, varied across sites. We also recorded 26 partner replacements, with no sign of sex or seasonal bias. Most replaced birds disappeared, suggesting that both sexes are under similar mortality risks, a usual main driver of partner replacement. Pair bonds lasted three or more years in 25% of the studied pairs. Altogether, these results provide insights for future studies on underlying mechanisms shaping home ranging, territoriality, and partner replacement in tropical birds that defend year-round territories.
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来源期刊
Acta Ornithologica
Acta Ornithologica 生物-鸟类学
CiteScore
2.10
自引率
0.00%
发文量
14
审稿时长
>12 weeks
期刊介绍: Publishes scientific papers (original research reports, reviews, short notes, etc.) and announcements from all fields of ornithology. All manuscripts are peer-reviewed. Established in 1933 as Acta Ornithologica Musei Zoologici Polonici, since 1953 continued under the present title. Published twice a year by the Natura Optima Dux Foundation under the auspices of the Museum and Institute of Zoology, Polish Academy of Sciences.
期刊最新文献
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