The response of ants to climate change

Global Change Biology, Journal Year: 2022, Volume and Issue: 28(10), P. 3188 - 3205

Published: March 11, 2022

Abstract Ants (Hymenoptera: Formicidae) are one of the most dominant terrestrial organisms worldwide. They hugely abundant, both in terms sheer numbers and biomass, on every continent except Antarctica deeply embedded within a diversity ecological networks processes. also eusocial colonial organisms—their lifecycle is built labor sterile worker ants who support small number reproductive individuals. Given climatic changes that our planet faces, we need to understand how various important taxonomic groups will respond; this includes ants. In review, synthesize available literature tackle question. The answer complicated. ant has focused temperature, broadly ways which thermal may affect colonies, populations, communities. general, expect species living Tropics, thermally variable microhabitats, such as canopy leaf litter environments, be negatively impacted by rising temperatures. Species temperate zones those able buffer their nests soil or behaviorally avoid higher temperatures, however, likely unaffected even benefit from changed climate. How respond other abiotic drivers associated with climate change largely unknown, detail altered populations communities ramify through wider networks. We discuss eusociality allow adapt to, tolerate, solitary cannot identify key geographic phylogenetic hotspots vulnerability resistance. finish emphasizing research questions address moving forward so fully appreciate critical insect group ongoing crisis.

Language: Английский

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Soil Temperatures Predict Smaller Niche Shifts Than Air Temperatures in Introduced Ant Species

Global Ecology and Biogeography, Journal Year: 2025, Volume and Issue: 34(4)

Published: April 1, 2025

ABSTRACT Aim Introduced species can establish in climates outside of their native niche and undergo ‘niche shifts’. However, studies shifts generally rely on above‐ground climate data, neglecting the potential buffering effect ground‐level or soil climates. Location Global. Time Period Present. Major Taxa Studied Formicidae. Methods Here, we investigated impact temperatures 95 introduced ant using both ordination hypervolume‐based approaches. We compared air temperature temperature. Results Overall, between 65.2% 82% (depending metric) exhibited smaller when considering temperature, with varying levels correlation air‐ soil‐temperature across (Correlation coefficient range: 0.56–0.73). Furthermore, conditions were more uncoupled than expected at random. This suggests that use microrefugia this may explain lower observed microclimatic conditions. Ecological traits, nesting type, forest cover spatial spread did not consistently differences metrics among species. highlights need for experimental research to explore versus ground‐climatic shifts. Main Conclusions overall highlight importance incorporating ecologically relevant particularly small, ground‐dwelling organisms like ants. study emphasises ongoing a nuanced understanding intricate interplay context dynamics. Ultimately, soil‐level datasets improve habitat suitability models, leading accurate predictions establishment success

Language: Английский

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Knock-down resistance to heat stress of Atta cephalotes in urban environments

Acta Oecologica, Journal Year: 2025, Volume and Issue: 127, P. 104076 - 104076

Published: April 18, 2025

Language: Английский

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Mapping the distribution of the Sunda pangolin (Manis javanica) within natural forest in Sabah, Malaysian Borneo

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 52, P. e02962 - e02962

Published: April 25, 2024

Borneo Malaysia Poachingprojected the distribution of Sunda pangolins in Sabah.Additionally, we assessed accessibility their forest habitats to humans understand potential threats.Our model indicated that, as 2015, approximately half Sabah's land area (39,530 km 2 ) is suitable for pangolins, with 43% protected forests, 38% production and 19% outside these areas.Alarmingly, our data suggest that nearly all (91%) are relatively easily accessible poachers.Our findings provide a state-level baseline understanding pangolin assess threats Sabah.These can inform short-and long-term conservation management plans safeguard this critically endangered species.

Language: Английский

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Low heat tolerance and high desiccation resistance in nocturnal bees and the implications for nocturnal pollination under climate change

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Dec. 15, 2023

Predicting insect responses to climate change is essential for preserving ecosystem services and biodiversity. Due high daytime temperatures low humidity levels, nocturnal insects are expected have lower heat desiccation tolerance compared diurnal species. We estimated the (CTMin) upper (CTMax) thermal limits of Megalopta, a group neotropical, forest-dwelling bees. calculated warming (WT) as metric assess vulnerability global measured survival rates during simulated heatwaves stress events. also assessed impact body size reproductive status (ovary area) on bees' limits. Megalopta displayed CTMin, CTMax, WTs than bees (stingless bees, orchid carpenter bees), but exhibited similar mortality heatwave higher tolerance. CTMin increased with increasing across all decreased ovary area in suggesting cost or differences environments. CTMax did not increase area. These results indicate greater sensitivity temperature reinforce idea that thermally constrained, which might threaten pollination contexts warming.

Language: Английский

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Temperature‐driven homogenization of an ant community over 60 years in a montane ecosystem

Ecology, Journal Year: 2024, Volume and Issue: 105(5)

Published: April 9, 2024

Abstract Identifying the mechanisms underlying changes in distribution of species is critical to accurately predict how have responded and will respond climate change. Here, we take advantage a late‐1950s study on ant assemblages canyon near Boulder, Colorado, USA, understand why distributions changed over 60‐year period. Community composition 60 years with increasing compositional similarity among assemblages. differed significantly between periods, aspect tree cover influencing composition. Species that foraged broader temperature ranges became more widespread Our work highlights shifts community biotic homogenization can occur even undisturbed areas without strong habitat degradation. We also show power pairing historical contemporary data encourage mechanistic studies under

Language: Английский

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Cold comfort: metabolic rate and tolerance to low temperatures predict latitudinal distribution in ants

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2023, Volume and Issue: 290(2006)

Published: Sept. 6, 2023

Metabolic compensation has been proposed as a mean for ectotherms to cope with colder climates. For example, under the metabolic cold adaptation and homeostasis hypotheses (MCA MHH), it formulated that cold-adapted should display both higher (MCA) more thermally sensitive (MHH) rates (MRs) at lower temperatures. However, whether such can truly be associated distribution, interplays tolerance predict species’ climatic niches, remains largely unclear despite broad ecological implications thereof. Here, we teased apart relationship between MRs, test MCA/MHH among 13 European ant species. We report clear effects, consistent MCA MHH, where MR parameters strongly correlated latitude factors across distributions. The combination of MRs further upheld best predictions species' environmental temperatures limits northernmost distribution. To our knowledge, this is first study showing association data supports better predictive models climate distribution in social insects than including alone. These results also highlight latitudes ants involved adjustments allow extremely successful group thrive

Language: Английский

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Critical thermal maxima in neotropical ants at colony, population, and community levels

Bulletin of Entomological Research, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 10

Published: Sept. 23, 2024

Global warming is exposing many organisms to severe thermal conditions and having impacts at multiple levels of biological organisation, from individuals species beyond. Biotic abiotic factors can influence organismal tolerance, shaping responses climate change. In eusocial ants, tolerance be measured the colony level (among workers within colonies), population colonies species), community species). We analysed critical maxima (CT

Language: Английский

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Versatile and inexpensive device for capturing high-quality behavioral videos under diverse field conditions

Behavioral Ecology and Sociobiology, Journal Year: 2024, Volume and Issue: 78(10)

Published: Oct. 1, 2024

Language: Английский

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Carbohydrate‐rich diet increases critical thermal maximum in ants

Entomologia Experimentalis et Applicata, Journal Year: 2023, Volume and Issue: 171(4), P. 240 - 247

Published: Jan. 10, 2023

Abstract To understand species’ responses to climate change, we must better comprehend the factors shaping physiological critical thermal limits. One factor of potential importance is nutrient availability. Carbohydrates are an energy source that can directly affect organism's state. Ants among most omnipresent and ecologically relevant animal groups on Earth, many ant species consume carbohydrate‐based diets. Additionally, as ectotherms, ants highly vulnerable effects change. Here, examined relationship between foraging temperature, carbohydrate availability, maximum (CT max ) in (Hymenoptera: Formicidae). First, conducted a laboratory experiment using 3–4 colonies two forage at high temperatures ( Camponotus blandus Smith Dorymyrmex thoracicus Gallardo) lower Nylanderia fulva Mayr Dolichoderus quadridenticulatus Roger). Each colony was divided into experimental subcolonies, which were given diets containing different concentrations (5 vs. 20% sucrose solutions). We then measured CT . also collected belonging these field their found highest for higher temperatures. For C. D. , workers had than 5% sucrose. No diet‐mediated differences seen N. workers. both treatment field‐collected conspecifics, except case If carbohydrate‐rich boost heat tolerance some species, it possible changes resource availability could determine how change affects ants, especially with Furthermore, impacts ripple across entire trophic network.

Language: Английский

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