Drivers of nest site selection and breeding success in an Alpine ground-nesting songbird DOI Creative Commons
Yann Rime, Pius Korner, Barbara Helm

et al.

Journal of Ornithology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Birds breeding in high-Alpine habitats must select a suitable site and achieve successful reproduction within restricted time. During four seasons, we monitored nest sites of the Northern Wheatear ( Oenanthe oenanthe ), long-distance migrant. We investigated how ecological factors predicted selection for nesting home range, using conditional logistic regression. preferred south-exposed productive pastures on gentle slopes, interspersed with non-vegetated ground human-made rockpiles. The direct vicinity conspecific nests was avoided, as were shrubby or north-exposed areas. if habitat also influenced success. analysed impact environmental success, which primarily driven by predation. probability brood fledging successfully decreased slopes areas low coverage ground. did not have clear effect. Further, describe success varied between years. Within years, replacement broods had higher apparent absence variation years delay period year late spring onset suggest high level tolerance respect to inter-annual meteorological conditions. Since is still widely available Alps given negative population trends Western Europe, Alpine range might serve refuge Wheatear, long low-intensity management heterogenous are maintained.

Language: Английский

Rising Temperatures Advance Start and End of the Breeding Season of an Alpine Bird DOI Creative Commons
Carole A. Niffenegger, Sabine Hille, Christian Schano

et al.

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(2)

Published: Feb. 1, 2025

ABSTRACT Many bird species have advanced the start of breeding season as a response to climate change. The duration and how it is affected by change are far less studied but important for re‐nesting potential. Re‐nesting includes both replacement failed attempt or successfully multiple times within one can therefore impact fitness. Some profit from an earlier through higher potential, whereas other also advance end conditions deteriorate. Here, we explored temperature, precipitation, snow influence start, end, cold‐adapted high‐elevation songbird. We fitted generalized additive models with more than 12,000 citizen science observations white‐winged snowfinches ( Montifringilla nivalis ) estimate phenology between 2006 2021. Our results indicate that prebreeding temperatures reduced April precipitation were associated breeding. However, later during shortened season. Despite adjusting timing reproduction prevailing environmental conditions, average increased over 16‐year study period. Therefore, need move elevations in order track thermal conditions. This highlights complex relationship illustrates much currently changing species.

Language: Английский

Citations

0
Finding food in a changing world: Small‐scale foraging habitat preferences of an insectivorous passerine in the Alps DOI Creative Commons
Thomas Müller, Christoph M. Meier, Florian Knaus

et al.

Ecology and Evolution, Journal Year: 2023, Volume and Issue: 13(5)

Published: May 1, 2023

Organisms living in high-elevation habitats are usually habitat specialists who occupy a narrow ecological niche. To envision the response of alpine species to changing environment, it is fundamental understand their preferences on multiple spatial and temporal scales. However, information small-scale use still widely lacking. We investigated foraging migratory northern wheatear

Language: Английский

Citations

4
Thermal microrefugia and changing climate affect migratory phenology of a thermally constrained marine mammal DOI Creative Commons
Elizabeth E. Hieb, Carl S. Cloyed,

Kayla P. DaCosta

et al.

Frontiers in Ecology and Evolution, Journal Year: 2023, Volume and Issue: 11

Published: July 7, 2023

Changing climate conditions are well documented to affect species distribution patterns and migratory phenology, especially for thermally constrained species. Climate induced changes other natural anthropogenic factors may habitats heterogeneously, altering microhabitats that act as refugia. Here, we used a marine mammal, the West Indian manatee ( Trichechus manatus) , model examine how availability of thermal microrefugia combined with driven increases in regional water temperatures timing duration occurrence at northern margins species’ range. We aerial, thermographic imaging identify potential anomalies could manatees during unfavorable cold assessed these sites using citizen-sourced sightings stranding response data. To further understand longer-term use phenology migration, compared spatial temporal distributions air sea surface on decadal scale. Thermal were detected various sources, or near support periods. Cold season known western endpoint (Alabama waters) have increased last decade, primarily through late fall early winter (Nov–Jan) correspond same period. Manatees remain latitudes longer, delaying seasonal migrations overwintering allow. change is likely effects migration patterns, potentially facilitating modern range expansion has implications management recovery actions across their Our study provides novel insight but also be expand ranges into higher latitudes.

Language: Английский

Citations

1
Drivers of nest site selection and breeding success in an Alpine ground-nesting songbird DOI Creative Commons
Yann Rime, Pius Korner, Barbara Helm

et al.

Journal of Ornithology, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract Birds breeding in high-Alpine habitats must select a suitable site and achieve successful reproduction within restricted time. During four seasons, we monitored nest sites of the Northern Wheatear ( Oenanthe oenanthe ), long-distance migrant. We investigated how ecological factors predicted selection for nesting home range, using conditional logistic regression. preferred south-exposed productive pastures on gentle slopes, interspersed with non-vegetated ground human-made rockpiles. The direct vicinity conspecific nests was avoided, as were shrubby or north-exposed areas. if habitat also influenced success. analysed impact environmental success, which primarily driven by predation. probability brood fledging successfully decreased slopes areas low coverage ground. did not have clear effect. Further, describe success varied between years. Within years, replacement broods had higher apparent absence variation years delay period year late spring onset suggest high level tolerance respect to inter-annual meteorological conditions. Since is still widely available Alps given negative population trends Western Europe, Alpine range might serve refuge Wheatear, long low-intensity management heterogenous are maintained.

Language: Английский

Citations

0