ArticleMovement ecology2021
Inclement weather forces stopovers and prevents migratory progress for obligate soaring migrants.
Article in Movement ecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Northern migration patterns and winter habitat use of hooded cranes (Grus monacha) in Suncheon Bay, South Korea.BMC ecology and evolution · 2025Article
- Balancing opposing cues: seasonal shifts in push-pull drivers of migration in a temperate waterfowl species.Movement ecology · 2025Article
- Rulers of the Open Sky at Risk: Climate-Driven Habitat Shifts of Three Conservation-Priority Raptors in the Eastern Himalayas.Biology · 2025Article
- Crossing the Straits of Mackinac: over-water uplift, wind support and low wind speed facilitates water crossings by a soaring migrant during pre-breeding spring migration.Movement ecology · 2025Article
- Modular switches shift monarch butterfly migratory flight behavior at their Mexican overwintering sites.iScience · 2024Article
- ORTEGA v1.0: an open-source Python package for context-aware interaction analysis using movement data.Movement ecology · 2024Article
- Individuals departing non-breeding areas early achieve earlier breeding and higher breeding success.Scientific reports · 2024Article
- Soaring migrants flexibly respond to sea-breeze in a migratory bottleneck: using first derivatives to identify behavioural adjustments over time.Movement ecology · 2023Article
- Coral reef fish larvae show no evidence for map-based navigation after physical displacement.iScience · 2023Article
- Inclement weather forces stopovers and prevents migratory progress for obligate soaring migrants.Movement ecology · 2021Article
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3 authors.
Funding
Abstract
backgroundMigrating birds experience weather conditions that change with time, which affect their decision to stop or resume migration. Soaring migrants are especially sensitive to changing weather conditions because they rely on the availability of environmental updrafts to subsidize flight. The timescale that local weather conditions change over is on the order of hours, while stopovers are studied at the daily scale, creating a temporal mismatch.
methodsWe used GPS satellite tracking data from four migratory Turkey Vulture (Cathartes aura) populations, paired with local weather data, to determine if the decision to stopover by migrating Turkey Vultures was in response to changing local weather conditions. We analyzed 174 migrations of 34 individuals from 2006 to 2019 and identified 589 stopovers based on variance of first passage times. We also investigated if the extent of movement activity correlated with average weather conditions experienced during a stopover, and report general patterns of stopover use by Turkey Vultures between seasons and across populations.
resultsStopover duration ranged from 2 h to more than 11 days, with 51 % of stopovers lasting < 24 h. Turkey Vultures began stopovers immediately in response to changes in weather variables that did not favor thermal soaring (e.g., increasing precipitation fraction and decreasing thermal updraft velocity) and their departure from stopovers was associated with improvements in weather that favored thermal development. During stopovers, proportion of activity was negatively associated with precipitation but was positively associated with temperature and thermal updraft velocity.
conclusionsThe rapid response of migrating Turkey Vultures to changing weather conditions indicates weather-avoidance is one of the major functions of their stopover use. During stopovers, however, the positive relationship between proportion of movement activity and conditions that promote thermal development suggests not all stopovers are used for weather-avoidance. Our results show that birds are capable of responding rapidly to their environment; therefore, for studies interested in external drivers of weather-related stopovers, it is essential that stopovers be identified at fine temporal scales.
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