河滨莺之歌:雄性约束与雌性领地信号

IF 0.8 4区 生物学 Q3 ORNITHOLOGY Acta Ornithologica Pub Date : 2023-11-10 DOI:10.3161/00016454ao2023.58.1.006
Rafael de Oliveira Fratoni, Lilian Tonelli Manica
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引用次数: 0

摘要

鸟类通过一些可能代价高昂的行为来保卫领地,比如鸣叫和攻击性的互动。歌曲通常是个体质量的良好代表,因此可以帮助保证获得食物、性伴侣和筑巢地点的机会和排他性。我们描述了河岸莺myiothlyypis rivularis的领土和声音行为,并测试了领土大小与个体声音属性之间的关系。从2018年10月到2019年4月,我们在巴西南部的大西洋森林中捆绑了14只雄性和9只雌性。我们估计了9对的领地大小,记录了9对雄性和6对雌性的发声时间分别为10和5.4 h。在男性歌曲中,颤音率和频率带宽之间的权衡表明,在这两个参数的生产机械声乐的限制。领地大小与雄性鸣叫参数无关,鸣叫参数可能表明个体而非领地质量。然而,拥有更宽带宽歌声的雌性占据了更小的领地。虽然减少了样本量,排除了推广,但这一结果可能是该物种中雌歌作用于领土的第一个迹象。总的来说,这项工作提供了关于河岸莺的新数据,并有助于了解雄性歌曲中的声音权衡以及雄性和雌性林莺的领土行为。此外,我们强调有必要进一步研究雌性鸣声,因为雌性鸣声与雄性鸣声一样可能与领土防御有关。
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Song of the Riverbank Warbler Myiothlypis rivularis: Male Constraints and Female Territorial Signaling
Birds defend territories by engaging in potentially costly behaviours, such as vocalizations and aggressive interactions. Songs are usually good proxies of individual quality, thus could help guarantee access and exclusivity to food, sexual partners and nesting sites. We described territorial and vocal behaviours of the Riverbank Warbler Myiothlypis rivularis, a year-round territorial wood-warbler (family Parulidae), and tested for relationships between territory size and individuals' vocal attributes. From October 2018 to April 2019, we banded 14 males and 9 females in the Atlantic Forest of south Brazil. We estimated territory sizes of nine pairs and recorded 10 and 5.4 h of 9 males and 6 females vocalizations, respectively. In male songs, a tradeoff between trill rate and frequency bandwidth indicates mechanical vocal constraints in the production of both parameters. Territory size did not relate to male song parameters, which could signal individual, rather than territorial, quality. However, females with broader bandwidth songs occupied smaller territories. Although the reduced sample size, which precludes generalization, this result may be a first indication of female song acting on territoriality in this species. Overall, this work presents new data on Riverbank Warbler and contributes to the knowledge on vocal tradeoffs in male songs and both male and female territorial behavior for wood-warblers. In addition, we highlight the need for further studies focused on female song, which like male song could be associated with territory defense.
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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.
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