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Spring weather influences breeding propensity, the most important productivity component for Arctic-nesting lesser snow geese.

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Název: Spring weather influences breeding propensity, the most important productivity component for Arctic-nesting lesser snow geese.
Autoři: Piironen A; Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Dooley JL; Division of Migratory Bird Management, US Fish and Wildlife Service, Vancouver, WA, USA., Baranyuk VV; Wrangel Island Nature Reserve, Pevek, Russia., Knetter JM; Idaho Department of Fish and Game, Boise, ID, USA., Spragens KA; Washington Department of Fish and Wildlife, Olympia, WA, USA., Schindler AR; Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Patil V; US Geological Survey Alaska Science Center, Anchorage, AK, USA., Reed ET; Environment and Climate Change Canada Canadian Wildlife Service, Yellowknife, Northwest Territories, Canada., Behney AC; Avian Research Section, Colorado Parks and Wildlife, Fort Collins, CO, USA., Ross MV; Environment and Climate Change Canada Canadian Wildlife Service, Delta, British Columbia, Canada., Sanders TA; Division of Migratory Bird Management, US Fish and Wildlife Service, Grand Junction, CO, USA., Petrie MJ; Ducks Unlimited Inc, Vancouver, WA, USA., Weegman MD; Department of Biology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Zdroj: Proceedings. Biological sciences [Proc Biol Sci] 2025 Nov; Vol. 292 (2058), pp. 20251386. Date of Electronic Publication: 2025 Nov 05.
Způsob vydávání: Journal Article
Jazyk: English
Informace o časopise: Publisher: Royal Society of London Country of Publication: England NLM ID: 101245157 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1471-2954 (Electronic) Linking ISSN: 09628452 NLM ISO Abbreviation: Proc Biol Sci Subsets: MEDLINE
Imprint Name(s): Original Publication: London : Royal Society of London, c1990-
Výrazy ze slovníku MeSH: Geese*/physiology , Reproduction* , Weather* , Nesting Behavior*, Animals ; Russia ; Seasons ; Arctic Regions ; Climate Change ; Population Dynamics ; Snow ; Clutch Size ; Breeding
Abstrakt: Animal reproduction is composed of several stages, which collectively determine overall productivity. Yet, it is not fully understood how different productivity components contribute to population change. To bridge this gap, we leveraged integrated population modelling and transient life-table response experiments, together with population-level data on lesser snow geese ( Anser caerulescens caerulescens ) breeding on Wrangel Island, Russia, from 1970 to 2022. We assessed contributions of breeding propensity, clutch size, nest success, egg survival, hatching success and pre-fledging survival to population change, and tested hypotheses about the effects of environmental drivers and density dependence on different components. Breeding propensity contributed the most to variation in population growth, followed by nest success. These two components were negatively affected by the timing of snow melt. We found no overall deleterious effects of climate change on productivity. Density dependence had a positive effect on multiple productivity components, likely through predator swamping. Our results show the importance of breeding propensity to the population dynamics of this long-lived animal, which is notable because this productivity component is often overlooked. Our results also demonstrate that the effects of environmental conditions and density dependence can differ among animal populations of different sizes, locations and life histories.
Grant Information: U.S. Geological Survey Changing Arctic Ecosystems program; Washington Department of Fish and Wildlife; Canadian Wildlife Service; Colorado Parks and Wildlife; Idaho Department of Fish and Game; Pacific Flyway Council; Arctic Goose Joint Venture; Ducks Unlimited Inc.
Contributed Indexing: Keywords: Arctic; carry-over effect; cross-seasonal effect; density dependence; population regulation; productivity decomposition; survival
Entry Date(s): Date Created: 20251104 Date Completed: 20251104 Latest Revision: 20251107
Update Code: 20251107
PubMed Central ID: PMC12585893
DOI: 10.1098/rspb.2025.1386
PMID: 41187924
Databáze: MEDLINE
Popis
Abstrakt:Animal reproduction is composed of several stages, which collectively determine overall productivity. Yet, it is not fully understood how different productivity components contribute to population change. To bridge this gap, we leveraged integrated population modelling and transient life-table response experiments, together with population-level data on lesser snow geese ( Anser caerulescens caerulescens ) breeding on Wrangel Island, Russia, from 1970 to 2022. We assessed contributions of breeding propensity, clutch size, nest success, egg survival, hatching success and pre-fledging survival to population change, and tested hypotheses about the effects of environmental drivers and density dependence on different components. Breeding propensity contributed the most to variation in population growth, followed by nest success. These two components were negatively affected by the timing of snow melt. We found no overall deleterious effects of climate change on productivity. Density dependence had a positive effect on multiple productivity components, likely through predator swamping. Our results show the importance of breeding propensity to the population dynamics of this long-lived animal, which is notable because this productivity component is often overlooked. Our results also demonstrate that the effects of environmental conditions and density dependence can differ among animal populations of different sizes, locations and life histories.
ISSN:1471-2954
DOI:10.1098/rspb.2025.1386