Bat responses to climate change: a systematic review

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2022, Volume and Issue: 98(1), P. 19 - 33

Published: Aug. 21, 2022

Understanding how species respond to climate change is key informing vulnerability assessments and designing effective conservation strategies, yet research efforts on wildlife responses fail deliver a representative overview due inherent biases. Bats are species-rich, globally distributed group of organisms that thought be particularly sensitive the effects because their high surface-to-volume ratios low reproductive rates. We systematically reviewed literature bat provide an current state knowledge, identify gaps biases highlight future needs. found studies geographically biased towards Europe, North America Australia, temperate Mediterranean biomes, thus missing substantial proportion diversity thermal responses. Less than half published concrete evidence for change. For over third studied species, response only based predictive distribution models. Consequently, most frequently reported involve range shifts (57% species) changes in patterns (26%). showed variety responses, including both positive (e.g. expansion population increase) negative (range contraction decrease), although extreme events were always or neutral. Spatial varied outcome across families, with almost all taxonomic groups featuring expansions contractions, while demographic strongly outcomes, among Pteropodidae Molossidae. The commonly used correlative modelling approaches can applied many but do not mechanistic insight into behavioural, physiological, phenological genetic There was paucity experimental (26%), small 396 covered examined using long-term and/or (11%), even though they more informative about emphasise need empirical unravel multifaceted nature bats' standardised study designs will enable synthesis meta-analysis literature. Finally, we stress importance overcoming geographic disparities through strengthening capacity Global South comprehensive view terrestrial biodiversity

Language: Английский

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Declining population trends of European mountain birds

Global Change Biology, Journal Year: 2018, Volume and Issue: 25(2), P. 577 - 588

Published: Dec. 11, 2018

Mountain areas often hold special species communities, and they are high on the list of conservation concern. Global warming changes in human land use, such as grazing pressure afforestation, have been suggested to be major threats for biodiversity mountain areas, affecting abundance causing distribution shifts towards mountaintops. Population poles mountaintops documented several indicating that climate change is one key drivers species' changes. Despite concern, relatively little known about population trends due low accessibility difficult working conditions. Thanks recent improvement bird monitoring schemes around Europe, we can here report a first account 44 from four European regions: Fennoscandia, UK upland, south-western (Iberia) south-central mountains (Alps), covering 12 countries. Overall, declined significantly (-7%) during 2002-2014, which similar declining rate common birds Europe same period. specialists showed significant -10% decline numbers. The slope generalists was also negative, but not so. slopes did differ each other. Fennoscandian Iberian populations were average declining, while United Kingdom Alps, nonsignificant. Temperature or migratory behaviour associated with regional species. Alpine habitats highly vulnerable change, this certainly main trends. However, observed declines partly linked local use practices. More efforts should undertaken identify causes increase these populations.

Language: Английский

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Identifying climate refugia for high‐elevation Alpine birds under current climate warming predictions

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(14), P. 4276 - 4291

Published: April 20, 2022

Abstract Identifying climate refugia is key to effective biodiversity conservation under a changing climate, especially for mountain‐specialist species adapted cold conditions and highly threatened by warming. We combined distribution models (SDMs) with forecasts identify high‐elevation bird ( Lagopus muta , Anthus spinoletta Prunella collaris Montifringilla nivalis ) in the European Alps, where ecological effects of changes are particularly evident predicted intensify. considered future (2041–2070) (SSP585 scenario, four models) identified three types refugia: (1) in‐situ potentially suitable both current conditions, ex‐situ (2) only according all or (3) at least out conditions. SDMs were based on very large, high‐resolution occurrence dataset (2901–12,601 independent records each species) collected citizen scientists. fitted using different algorithms, balancing statistical accuracy, realism predictive/extrapolation ability. selected most reliable ones consistency between training testing data extrapolation over distant areas. Future predictions revealed that (with partial exception A. will undergo range contraction towards higher elevations, losing 17%–59% their (larger losses L. ). ~15,000 km 2 Alpine region as species, which 44% currently designated protected areas (PAs; 18%–66% among countries). Our findings highlight usefulness spatially accurate scientists, importance model extrapolating Climate refugia, partly included within PAs system, should be priority sites habitats, habitat degradation/alteration human activities prevented ensure suitability alpine species.

Language: Английский

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Short-lived species move uphill faster under climate change

Oecologia, Journal Year: 2022, Volume and Issue: 198(4), P. 877 - 888

Published: Jan. 6, 2022

Climate change is pushing species ranges and abundances towards the poles mountain tops. Although many studies have documented local altitudinal shifts, knowledge of general patterns at a large spatial scale, such as whole range, scarce. From conservation perspective, studying shifts in wildlife relevant because regions often represent biodiversity hotspots are among most vulnerable ecosystems. Here, we examine whether birds' occurred Scandinavian mountains over 13 years, assess related to species' traits. Using abundance data, show clear pattern uphill shift mean altitude bird across mountains, with an average speed 0.9 m per year. Out 76 species, 7 shifted significantly their uphill. Altitudinal was strongly longevity: short-lived showed more pronounced than long-lived species. The observed suggest that not only driven by small number individuals range boundaries, but overall on move. Overall, results underscore wide-ranging impact climate potential vulnerability slow life histories, they appear less able timely respond rapidly changing climatic conditions.

Language: Английский

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Protecting alpine biodiversity in the Middle East from climate change: Implications for high‐elevation birds

Diversity and Distributions, Journal Year: 2024, Volume and Issue: 30(5)

Published: March 1, 2024

Abstract Aims The Middle East, located in the arid belt of Earth, is home to a diverse range biodiversity, with its mountain ecosystems being most important centres species diversity and endemism. In this study, impact climate change on alpine bird East was assessed across five systems: Alborz–Kopet‐Dagh, Caucasus–Pontic, Levant–Taurus, Sarawat–Hijaz Zagros–Central Iran. Location East. Methods Using distribution models (SDMs), 38 native were analysed under different scenarios. We also identified future multispecies situ ex refugia efficiency current protected areas (PAs) system protecting them. Results results indicated that, average, habitat suitability for these projected decline by 36.83% (2050, SSP2‐4.5) 60.10% (2070, SSP5‐8.5) an upward shift. Based stacking species, Iran Alborz–Kopet–Dagh ranges will experience highest amount loss, respectively, Caucasus–Pontic least affected. gap analysis showed that existing PAs covers only 13% 10% climatic refugia, respectively. Conclusions Our findings underscore significance mountainous regions persistence urgent need prioritize transboundary participatory conservation plans. It crucial prevent degradation alteration resulting from human activities ensure their habitats.

Language: Английский

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Efficiency of birds as bioindicators for other taxa in mountain farmlands

Ecological Indicators, Journal Year: 2024, Volume and Issue: 158, P. 111569 - 111569

Published: Jan. 1, 2024

Biodiversity loss is a global issue, particularly in mountain regions, where land-use/land-cover and climate change dramatically impact on species communities. Sound ecological research up-to-date information biodiversity are needed to support conservation efforts. However, this often difficult costly obtain. Therefore, bioindicators serve as surrogates provide the entire biocenosis. Birds considered excellent they occupy different niches trait spaces. We present study about efficiency of birds for diversity other taxa region Central Alps. surveyed bird communities at 115 sites across gradient grasslands crops compared them with (bats, butterflies, grasshoppers, arachnids, vascular plants). aimed identify indicator crops, assess cross-community concordance between taxa, model indices habitat types taxa. identified grassland crop found that single varied highlight importance using carefully selected monitoring planning, need an integrated interdisciplinary approach research. Moreover, by looking combination we can gain more comprehensive understanding ecosystem functioning. also framework use bird-based programs bird-derived guide conservation, emphasise incorporating into patterns trends.

Language: Английский

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Climatic variation affects seasonal survival of an alpine bird species

Wildlife Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Mountains are particularly exposed to climate change, and empirical studies have shown that montane bird species highly sensitive the ongoing changes. Modelling mortality risks under climatic variation will give insight into species‐specific sensitivity. Willow ptarmigan Lagopus l. lagopus is a common resident in many northern alpine ecosystems, with an important role predator–prey dynamics. moult white feathers during autumn, which provides camouflage winter snow. With shorter periods of snow cover, phenological mismatch between cover moulting time may affect risk. Simultaneously, risk through limiting access nutrient‐rich food increasing risk‐taking. Detailed relationships require high‐resolution data uncover. We collected from willow (n = 272) equipped VHF transmitters over seven years central Norway. Field collection was performed on monthly basis, except darkest period winter. Using Cox proportional hazards models, we estimated whether related spring autumn seasons. found earlier arrival led increased for yearlings, but not adults, following spring. Further, lower when there less In differed only sexes. our study survival affected by variation, where magnitude effects population dynamics depend age distribution population. hypothesise competing connected versus risk‐taking limited resources, different importance conditions.

Language: Английский

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Temporal homogenization of functional and beta diversity in bird communities of the Swiss Alps

Diversity and Distributions, Journal Year: 2020, Volume and Issue: 26(8), P. 900 - 911

Published: May 30, 2020

Abstract Aim Describing the spatio‐temporal dynamics of biotic communities is critical for understanding how environmental change can affect biodiversity. Mountains are especially susceptible to such changes (e.g., climate change) and, consequently, have been identified as ecosystems conservation concern. With their sharp physical and ecological transitions, altitudinal gradients allow examining influence different climatic conditions land use types on species assemblages across small spatial extents, thus, they constitute natural laboratories study diversity–environment relationships. Location Switzerland. Methods We take advantage long‐term (20 years) monitoring data an extensive trait dataset (100 traits) examine patterns, temporal trends, in functional beta diversity bird Swiss Alps. Results Functional indices showed a congruent pattern over time space; most decreased period were strongly correlated with altitude. In agreement studies from tropics, we found that lowlands functionally over‐dispersed, whereas at higher elevations clustered. High‐altitude exhibited high originality, low levels niche differentiation turnover rate. Beta declined period. Conclusions Our findings suggest pastoral abandonment does not result increase avian colonizing woody‐encroached grasslands redundant, alpine meadows inhabited by exhibiting degree habitat specialization unique traits. Hence, tree line constitutes boundary between two well‐differentiated groups: one representing continuum dominated agricultural landscape high‐mountain forests, other composed communities. Overall, this reveals process homogenization (i.e., increasing similarity) last decades Alps, coinciding recently reported increases abundance generalist species.

Language: Английский

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Snow cover phenology is the main driver of foraging habitat selection for a high-alpine passerine during breeding: implications for species persistence in the face of climate change

Biodiversity and Conservation, Journal Year: 2019, Volume and Issue: 28(10), P. 2669 - 2685

Published: May 30, 2019

Language: Английский

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Shifts in migration phenology under climate change: temperature vs. abundance effects in birds

Climatic Change, Journal Year: 2020, Volume and Issue: 159(2), P. 177 - 194

Published: Feb. 1, 2020

Language: Английский

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