Potential effects of future climate change on global reptile distributions and diversity

Global Ecology and Biogeography, Journal Year: 2023, Volume and Issue: 32(4), P. 519 - 534

Published: Feb. 21, 2023

Abstract Aim Until recently, complete information on global reptile distributions has not been widely available. Here, we provide the first comprehensive climate impact assessment for reptiles a scale. Location Global, excluding Antarctica. Time period 1995, 2050 and 2080. Major taxa studied Reptiles. Methods We modelled distribution of 6296 species assessed potential realm‐specific changes in richness, change richness across space, species‐specific range extent, overlap position under future change. To assess climatic 3768 range‐restricted species, which could be modelled, compared conditions between both non‐modelled species. Results Reptile was projected to decline significantly over time, globally but also most zoogeographical realms, with greatest decreases Brazil, Australia South Africa. Species highest warm moist regions, these regions being shift further towards extremes future. Range extents were considerably future, low current ranges. Shifts centroids differed among realms taxa, dominant poleward shift. Non‐modelled stronger affected by than Main conclusions With ongoing change, is likely decrease parts world. This effect, addition considerable impacts position, visible lizards, snakes turtles alike. Together other anthropogenic impacts, such as habitat loss harvesting this cause concern. Given historical lack distributions, calls re‐assessment conservation efforts, specific focus anticipated

Language: Английский

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Ongoing over-exploitation and delayed responses to environmental change highlight the urgency for action to promote vertebrate recoveries by 2030

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(1997)

Published: April 18, 2023

To safeguard nature, we must understand the drivers of biodiversity loss. Time-delayed responses to environmental changes (ecological lags) are often absent from models change, despite their well-documented existence. We quantify how lagged climate and land-use change have influenced mammal bird populations around world, while incorporating effects direct exploitation conservation interventions. Ecological lag duration varies between drivers, vertebrate classes body size groupings-e.g. lags linked climate-change impacts 13 years for small birds, rising 40 larger species. Past warming land conversion generally combine predict population declines; however, such conditions associated with increases mammals. Positive management (

Language: Английский

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Cool shade and not‐so‐cool shade: How habitat loss may accelerate thermal stress under current and future climate

Global Change Biology, Journal Year: 2023, Volume and Issue: 29(22), P. 6201 - 6216

Published: June 6, 2023

Worldwide habitat loss, land-use changes, and climate change threaten biodiversity, we urgently need models that predict the combined impacts of these threats on organisms. Current models, however, overlook microhabitat diversity within landscapes so do not accurately inform conservation efforts, particularly for ectotherms. Here, built field-parameterized a model to examine effects loss activity selection by diurnal desert lizard. Our predicted lizards in rock-free areas would reduce summer levels (e.g. foraging, basking) future warming will gradually decrease rocky areas, as even large rocks become thermally stressful. Warmer winters enable more but require bushes small shade retreats. Hence, microhabitats may seem unimportant today important under change. Modelling frameworks should consider requirements organisms improve outcomes.

Language: Английский

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Biodiversity responses to agricultural practices in cropland and natural habitats

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 922, P. 171296 - 171296

Published: Feb. 27, 2024

Language: Английский

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Biodiversity Patterns Redefined in Environmental Space

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(2)

Published: Feb. 1, 2025

ABSTRACT Ecological and evolutionary questions addressing diversity‐environment relationships have been evaluated almost entirely in geographic space, yet most hypotheses are formulated terms of environmental conditions. Recent examples evaluating macroecological patterns directly space suggest that such refocusing provides different perspectives on the mechanisms driving broad‐scale diversity. Yet, we lack both conceptual frameworks targeted studies to fully evaluate potential contribution a refocus. Here, focus concept by briefly reviewing its use ecology evolution suggesting avenues for further development. We encourage re‐evaluation dominated ecological theory since foundations with very simple shift lens, is, from geographical space. Focusing also crucial lens climate change research, enabling comprehensive evaluation biodiversity dynamics offering holistic view interplay between species their evolving environments. This enhances our ability predict adapt future changes, enriching understanding beyond more commonly done analyses.

Language: Английский

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Vertebrate population trends are influenced by interactions between land use, climatic position, habitat loss and climate change

Global Change Biology, Journal Year: 2021, Volume and Issue: 28(3), P. 797 - 815

Published: Nov. 26, 2021

Rapid human-driven environmental changes are impacting animal populations around the world. Currently, land-use and climate change two of biggest pressures facing biodiversity. However, studies investigating impacts these on population trends often do not consider potential interactions between change. Further, a population's climatic position (how close ambient temperature precipitation conditions to species' tolerance limits) is known influence responses but has yet be investigated with regard its over time. Consequently, important variations across ranges in may being overlooked. Here, we combine data from Living Planet BioTIME databases carry out global analysis exploring land use, habitat loss, position, variables, vertebrate trends. By bringing datasets together, analyse 7,000 42 countries. We find that interacting rates Moreover, features local landscape (such as surrounding cover) play roles interactions. For example, agricultural uses where maximum temperatures were closer their hot thermal limit, declined at faster when there had also been rapid losses semi-natural habitat. The complex variables highlight importance taking intraspecific variation into account. Understanding how drivers populations, this varies spatially, critical if identify risk, predict future produce suitable conservation strategies.

Language: Английский

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Forest microclimate and composition mediate long‐term trends of breeding bird populations

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(21), P. 6180 - 6193

Published: Sept. 6, 2022

Abstract Climate change is contributing to biodiversity redistributions and species declines. However, cooler microclimate conditions provided by old‐growth forest structures compared with surrounding open or younger forests have been hypothesized provide thermal refugia for that are sensitive climate warming dampen the negative effects of on population trends animals (i.e., buffering hypothesis ). In addition refugia, compositional structural diversity vegetation itself may resources less available in simpler structure insurance We used 8 years breeding bird abundance data from a forested watershed, accompanied sub‐canopy temperature data, ground‐ LiDAR‐based test these hypotheses identify factors influencing changes 2011 2018. After accounting imperfect detection, we found 5 20 analyzed, tended be neutral at sites microclimates, which supports . Negative two were also reduced locations greater supporting first empirical evidence complex confer microclimatic advantages some animal populations face change. Conservation forests, their characteristics managed could help slow via possibly effects.

Language: Английский

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Priorities for conserving the world’s terrestrial mammals based on over-the-horizon extinction risk

Current Biology, Journal Year: 2023, Volume and Issue: 33(7), P. 1381 - 1388.e6

Published: April 1, 2023

Language: Английский

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Effectiveness of population‐based recovery actions for threatened southern mountain caribou

Ecological Applications, Journal Year: 2024, Volume and Issue: 34(4)

Published: April 17, 2024

Abstract Habitat loss is affecting many species, including the southern mountain caribou ( Rangifer tarandus ) population in western North America. Over last half century, this threatened population's range and abundance have dramatically contracted. An integrated model was used to analyze 51 years (1973–2023) of demographic data from 40 subpopulations assess effectiveness population‐based recovery actions at increasing growth. Reducing potential limiting factors on populations offered a rare opportunity identify causes decline methods recovery. Southern declined by 51% between 1991 2023, 37% were functionally extirpated. Wolf reduction only action that consistently increased growth when applied isolation, combinations wolf reductions with maternal penning or supplemental feeding provided rapid but four subpopulations. As 52%, compared simulation no interventions. When predation pressure reduced, observed, even under contemporary climate change high levels habitat loss. Unless will continue be extirpated well before conservation restoration can become effective.

Language: Английский

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Sensitivity of North American grassland birds to weather and climate variability

Conservation Biology, Journal Year: 2023, Volume and Issue: 38(1)

Published: July 10, 2023

Grassland birds in North America have declined sharply over the last 60 years, driven by widespread loss and degradation of grassland habitats. Climate change is occurring more rapidly grasslands relative to some other ecosystems, exposure extreme novel climate conditions may affect bird ecology demographics. To determine potential effects weather variability on birds, we conducted a systematic review relationships between temperature precipitation demographic responses species America. Based 124 independent studies, used vote-counting approach quantify frequency direction significant birds. tended experience positive negative higher temperatures altered precipitation. Moderate, sustained increases mean benefitted species, but heat, drought, heavy rainfall often reduced abundance nest success. These patterns varied among regions, temporal scales (<1 or ≥1 month), taxa. The sensitivity populations will likely be mediated regional climates, interaction with stressors, life-history strategies various species' tolerances for conditions.

Language: Английский

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