雌性黑翅蜂鸟(Archilochus alexandri)成功筑巢与雄性相似的羽毛

IF 0.5 4区 环境科学与生态学 Q4 BIODIVERSITY CONSERVATION Western North American Naturalist Pub Date : 2023-06-19 DOI:10.3398/064.083.0211
Cooper M. Farr, John Middleton
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引用次数: 0

摘要

摘要。雌性限制多态性是指雌性动物可以表现出类似雄性色彩的现象,已知约有25%的蜂鸟物种会出现这种现象,但此前黑翅蜂鸟(Archilochus alexandri)尚未发现这种现象。2021 年 5 月至 7 月间,我们在犹他州盐湖城记录了一只具有雄性羽毛特征的黑弦蜂鸟,它筑巢、孵卵并成功孵出了两只雏鸟。该鸟的颏部和上喉部等躯干羽毛以深色为主,间杂少量白色羽毛。由于该鸟参与了筑巢、产卵和孵化--这些行为在雄性蜂鸟中并不常见--我们推测该鸟是一只具有雄性羽毛的雌性黑翅蜂鸟。过去曾在其他物种的老年雌鸟身上观察到类似雄鸟的颜色形态,尤其是在那些激素失调和繁殖力下降的雌鸟身上,因此这只个体能够成功产卵并孵化出两只雏鸟,是值得注意的。简述。我们发现,雌鸟的多毛症(一种雌鸟可表现出与雄鸟相似颜色的病症)大约发生在 25% 的雌鸟物种中,但在黑腹雌鸟(Archilochus alexandri)中尚未发现。2021 年 5 月至 7 月,我们在犹他州盐湖城发现了一只具有雄性羽状体特征的黑线鳕,它建造了一个鸟巢,孵化了小鸟,并成功繁殖了两只小鸟。雉鸡的鳞片,包括倒刺和鳃的上部,主要是暗色的,中间夹杂着少量的蓝色鳞片。由于雌马参与了母马的形成、产卵和孵化,而这些行为方式在大马哈鱼中是不存在的,因此我们认为雌马是一个具有大马哈鱼羽状体的黑马哈鱼。Se han observado apariciones pastas de morfos de color comparcidos a los machos en aves hembras mayores, y especialmente en aquellas con desequilibrios hormonales y disminución de la fecundidad, por lo que es notable que este individuo pudo producir y emplumar con éxito 2 huevos.
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Nest Success by a Female Black-Chinned Hummingbird (Archilochus alexandri) with Male-Like Plumage
Abstract. Female-limited polymorphism, a phenomenon in which female animals can exhibit male-like coloration, is known to occur in approximately 25% of hummingbird species, but it has not previously been recognized in Black-chinned Hummingbirds (Archilochus alexandri). Between May and July 2021, we documented a Black-chinned Hummingbird with male plumage features that built a nest, incubated eggs, and successfully fledged 2 chicks in Salt Lake City, Utah. The bird's gorget feathers, including the chin and upper throat, were predominantly dark with a small number of white feathers interspersed. Because the bird participated in nest building, presumed egg production, and incubation—behaviors not known to occur in male hummingbirds—we hypothesize that this bird was a female Black-chinned Hummingbird with male-like plumage. Past occurrences of male-like color morphs have been observed in older female birds of other species, especially in those with hormone imbalances and decreased fecundity, so it is notable that this individual was able to successfully produce eggs and fledge 2 chicks. Resumen. Se sabe que el polimorfismo limitado por hembras, un fenómeno en el que las hembras pueden exhibir una coloración similar a la de los machos, ocurre en aproximadamente el 25% de las especies de colibríes, pero no se ha reconocido previamente en los colibríes de mentón negro (Archilochus alexandri). En mayo-julio de 2021, documentamos un colibrí de mentón negro con características de plumaje masculino que construyó un nido, incubó huevos y emplumó con éxito dos polluelos en Salt Lake City, Utah. Las plumas del gorjal del pájaro, incluida la barbilla y la parte superior de la garganta, eran predominantemente oscuras con una pequeña cantidad de plumas blancas intercaladas. Debido a que el ave participó en la construcción de nidos, la presunta producción de huevos y la incubación, comportamientos que no se sabe que ocurren en los colibríes machos, planteamos la hipótesis de que esta ave era una hembra de colibrí de mentón negro con plumaje de macho. Se han observado apariciones pasadas de morfos de color parecidos a los machos en aves hembras mayores, y especialmente en aquellas con desequilibrios hormonales y disminución de la fecundidad, por lo que es notable que este individuo pudo producir y emplumar con éxito 2 huevos.
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来源期刊
Western North American Naturalist
Western North American Naturalist 环境科学-生态学
CiteScore
0.90
自引率
16.70%
发文量
39
审稿时长
>36 weeks
期刊介绍: The Western North American Naturalist places neither restriction nor preference on manuscripts within the disciplines of the biological sciences. Each issue treats diverse taxa from the perspectives of various disciplines (e.g., ecology, population dynamics, behavior, systematics, anatomy, and physiology).
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