Seasonal variation and tracking of climate niche of a migratory bird

Illán, Javier Gutiérrez; WANG, GUIMING; King, D. Tommy; Cunningham, Fred L.

doi:10.1016/j.gecco.2022.e02155

Cited by 4 publications

(3 citation statements)

References 56 publications

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“…Remaining at the nonbreeding grounds allows immature birds to avoid migration-related mortalities without losing the reproductive component of fitness. Non-migratory immature pelicans may make exploratory movements with multiple core areas of annual home ranges covering a large area at the non-breeding grounds [45]. By the end of spring, pelicans had a probability of 0.4 to skip spring migration remaining at the non-breeding grounds.…”

Section: Discussionmentioning

confidence: 99%

Large- and Small-Scale Climate Influences Spring Migration Departure Probability of American White Pelicans

2022

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Endogenous (e.g., age and sex) and exogenous (e.g., climate and resource availability) factors influence avian migration phenology. However, little is known regarding the migration ecology of birds at the non-breeding grounds, including the American white pelican (Pelecanus erythrorhynchos). We used Global Positioning System transmitters to track the movements and migration of 51 pelicans from 2002 to 2012. We used the Kaplan–Meier model to estimate pelican spring migration probabilities to quantify partial migration with 94 spring migration events and used the Cox proportional hazards model to evaluate the effects of the North Atlantic Oscillation index (NAOI), Southern Oscillation Index (SOI), and spring daily precipitation on the propensity of pelican spring migration departures. Increases in the NAOI and SOI enhanced the propensity of pelican spring departure. The propensity of spring departure was also positively related to daily precipitation. Male pelicans have greater spring migration probabilities than female pelicans. Spring migration departure probabilities of adult pelicans are greater than those of immature pelicans. Therefore, both large-scale and local climatic conditions affect pelican spring departure probabilities. Advanced migratory phenology of pelicans caused by climate changes with warming temperature and increased precipitation may result in the mismatch of pelican spring arrival with food resource availability of breeding grounds and subsequent pelican population declines.

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Section: Discussionmentioning

confidence: 99%

Large- and Small-Scale Climate Influences Spring Migration Departure Probability of American White Pelicans

2022

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“…These migratory patterns have important consequences for the broader ecology and evolution of a species as it can affect population dynamics via seasonal carry-over effects (Marra et al 1998;Sillett & Holmes 2002;Taylor & Norris 2010). Seasonal climate tracking is often assumed to be an adaptive behavior underlying migration patterns (e.g., Thorupet al 2021;Gutiérrez Illán et al 2022), and previous population-specific studies found evidence of seasonal climate tracking at population level (Fandos & Telleria 2020;Gutiérrez Illán et al 2022). If seasonal climate tracking is a driver of migration patterns, migratory populations are expected to modify their migration patterns to track changing climate, which has been suggested in some migratory species (Van Doren et al 2021;Dufour et al 2021;Thorup et al 2021), and climate change would thus be a direct driver of the evolution of migration routes within species.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies investigating seasonal climate tracking at the population level (Fandos & Telleria 2020;Gutiérrez Illán et al 2022) have used tracking and banding data which makes it difficult and rather arbitrary to define distinct populations. In contrast, advances in genomics make it possible to delineate genetically distinct populations across a species and map their seasonal destinations (Ruegg et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Broad-scale seasonal climate tracking is a consequence, not a driver, of avian migratory connectivity

Somveille,

Bossu,

DeSaix

et al. 2023

Preprint

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Tracking climatic conditions throughout the year is often assumed to be an adaptive behavior underlying seasonal migration patterns in animal populations. In this study, we investigate this hypothesis using genetic markers data to map migratory connectivity for 22 genetically distinct bird populations across 6 species. We found that the variation in seasonal climate tracking at a continental scale is more likely a consequence, rather than an underlying driver, of migratory connectivity, which is itself largely shaped by energy efficiency – i.e. optimizing the balance between accessing available resources and the cost of movement. However, our results also suggest that regional-scale seasonal precipitation tracking affects migration destinations, thus revealing a potential scale-dependency of ecological processes driving migration. Our results have implications for the conservation of migratory species under climate change, as populations that track climate seasonally are potentially at higher risk if they adapt to a narrow range of climatic conditions.

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Tracking wintering areas and post-breeding migration of a declining farmland bird – An indispensable basis for successful conservation

Kämpfer

Kruckenberg²,

Düttmann

et al. 2023

Global Ecology and Conservation

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Seasonal variation and tracking of climate niche of a migratory bird

Cited by 4 publications

References 56 publications

Large- and Small-Scale Climate Influences Spring Migration Departure Probability of American White Pelicans

Large- and Small-Scale Climate Influences Spring Migration Departure Probability of American White Pelicans

Broad-scale seasonal climate tracking is a consequence, not a driver, of avian migratory connectivity

Tracking wintering areas and post-breeding migration of a declining farmland bird – An indispensable basis for successful conservation

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