Junjian Zhang, Xianghuang Li, Xueqin Deng, Iderbat Damba, Nyambayar Batbayar, Zhenggang Xu, Yong Zhang, Lei Cao, Anthony David Fox
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The autumn departure phenology of SG exhibited stronger responses to 0 °C nighttime temperatures, while the GG responded more to 0 °C cumulative temperatures.</p><p><strong>Conclusions: </strong>Two goose species follow behind the daily 0 °C and before the green-up of plants in spring, allowing the time of hatching of goslings to coincide with the plant growth peak, ensuring a predictable food supply for the nidifugous juveniles. Vegetation and snow metrics were not appropriate indicators to predict the migration process of either species, due to the lack of strong latitudinal gradients in plant growth and long-term snow cover.</p>","PeriodicalId":54288,"journal":{"name":"Movement Ecology","volume":"13 1","pages":"58"},"PeriodicalIF":3.9000,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12351783/pdf/","citationCount":"0","resultStr":"{\"title\":\"Exploring potential environmental drivers of migration phenology in two Mongolian Plateau-nesting goose species.\",\"authors\":\"Junjian Zhang, Xianghuang Li, Xueqin Deng, Iderbat Damba, Nyambayar Batbayar, Zhenggang Xu, Yong Zhang, Lei Cao, Anthony David Fox\",\"doi\":\"10.1186/s40462-025-00583-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>Migratory phenology affects fitness and therefore plays a crucial role in the annual life cycle of migrants. 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引用次数: 0
摘要
背景:候鸟物候影响着候鸟的适合度,因此在候鸟的年生命周期中起着至关重要的作用。与北极筑巢鸟类迁徙模式相关的各种指标(如植被生产)已经得到了很好的研究,但我们仍然缺乏对低纬度地区的了解,例如蒙古高原,这是鸟类研究和保护的重点地区之一。方法:利用蒙古高原上四个地理上离散的繁殖群中分别标记的天鹅(Anser cygnoides, SG)和灰雁(Greylag Geese A. Anser, GG)的208条春季和248条秋季迁徙轨迹。我们分析了它们在迁徙时间上的差异,它们对环境变化指标的响应,以及它们春季到达和秋季离开的概率。结果:蒙古东部筑巢鸟的迁徙物候特征与蒙古中部和西部筑巢鸟的迁徙物候特征存在显著差异,但不同物种的春秋离境时间存在显著差异,而它们的到达时间相似。它们的春季迁徙跟随日气温达到0℃的开始,但与它们迁徙路线上的植物绿化指数不相关。春夏秋末物候对0℃夜间温度的响应较强,春夏秋末物候对0℃累积温度的响应较强。结论:两种鹅在春季每日0°C之后和植物发芽之前出现,使得小鹅的孵化时间与植物生长高峰重合,确保了无源幼鹅可预测的食物供应。由于植物生长和长期积雪缺乏较强的纬度梯度,植被和积雪指标不适合预测两种物种的迁移过程。
Exploring potential environmental drivers of migration phenology in two Mongolian Plateau-nesting goose species.
Background: Migratory phenology affects fitness and therefore plays a crucial role in the annual life cycle of migrants. Various indicators in relation to the migration patterns of Arctic nesting birds have been well studied (e.g. vegetation production), but we still lack knowledge from lower latitudes, e.g. the Mongolian Plateau, which is one of the top-priority regions for avian research and conservation.
Methods: We used 208 spring and 248 autumn migration tracks from individually tagged Swan Geese Anser cygnoides (SG) and Greylag Geese A. anser (GG) from four geographically discrete breeding groups across the Mongolian Plateau. We analyzed the difference in their migratory timing, how they responded to nine environmental metrics as indicators of environmental change, and the probability of spring arrival and autumn departure.
Results: We found significant differences in spring and autumn departure times between species, yet their arrival times were similar, although the migration phenology of eastern nesting birds differed significantly from those in central and western Mongolia. Their spring migration followed the onset of daily temperature reaching 0 °C, but was not correlated with indices of plant green-up, which occurred behind them along their migration routes. The autumn departure phenology of SG exhibited stronger responses to 0 °C nighttime temperatures, while the GG responded more to 0 °C cumulative temperatures.
Conclusions: Two goose species follow behind the daily 0 °C and before the green-up of plants in spring, allowing the time of hatching of goslings to coincide with the plant growth peak, ensuring a predictable food supply for the nidifugous juveniles. Vegetation and snow metrics were not appropriate indicators to predict the migration process of either species, due to the lack of strong latitudinal gradients in plant growth and long-term snow cover.
Movement EcologyAgricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
6.60
自引率
4.90%
发文量
47
审稿时长
23 weeks
期刊介绍:
Movement Ecology is an open-access interdisciplinary journal publishing novel insights from empirical and theoretical approaches into the ecology of movement of the whole organism - either animals, plants or microorganisms - as the central theme. We welcome manuscripts on any taxa and any movement phenomena (e.g. foraging, dispersal and seasonal migration) addressing important research questions on the patterns, mechanisms, causes and consequences of organismal movement. Manuscripts will be rigorously peer-reviewed to ensure novelty and high quality.