The effect of seasonal temperatures on the physiology of the overwintered honey bee DOI Creative Commons
Olga Frunze,

Yumi Yun,

Hyunjee Kim

et al.

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(12), P. e0315062 - e0315062

Published: Dec. 9, 2024

Honey bee physiology follows an annual cycle, with winter bees living ten times longer than summer bees. Their transition can be disrupted by climate change. Several factors, mainly temperature, may contribute to the global losses of We simulated warming maintaining constant temperatures 25°C (Group 25) and 35°C 35) in rooms around hives from June October, while a Group control experienced natural conditions. Colony performance was assessed August September. In February, workers were examined for physiological traits (acinus size lipid content fat body) molecular markers ( vg JHAMT ), along potential ilp1 , ilp2 TOR1 HSP70 ). Our findings suggest that temperature decreases worker broods 25 fall led their different states related aging compared 35 workers. Changes end diapause detected upregulation genes. These signs response could lead development strategies prevent improve identification insect models.

Language: Английский

Bees display limited acclimation capacity for heat tolerance DOI Creative Commons
Víctor H. González,

Natalie Herbison,

Gabriela Robles Perez

et al.

Biology Open, Journal Year: 2024, Volume and Issue: 13(3)

Published: March 1, 2024

ABSTRACT Bees are essential pollinators and understanding their ability to cope with extreme temperature changes is crucial for predicting resilience climate change, but studies limited. We measured the response of critical thermal maximum (CTMax) short-term acclimation in foragers six bee species from Greek island Lesvos, which differ body size, nesting habit, level sociality. calculated ratio as a metric assess capacity tested whether bees’ was influenced by size and/or CTMax. also assessed CTMax increases following acute heat exposure simulating wave. Average estimate varied among increased did not significantly shift treatment except sweat Lasioglossum malachurum. Acclimation averaged 9% it associated or Similarly, average increase exposure. These results indicate that bees might have limited enhance tolerance via prior exposure, rendering them physiologically sensitive rapid during weather events. findings reinforce idea insects, like other ectotherms, generally express weak plasticity CTMax, underscoring role behavioral thermoregulation avoidance temperatures. Conserving restoring native vegetation can provide temporary refuges

Language: Английский

Citations

10
Heatwave-like events affect drone production and brood-care behaviour in bumblebees DOI Creative Commons
Yanet Sepúlveda, Elizabeth Nicholls, Wiebke Schuett

et al.

PeerJ, Journal Year: 2024, Volume and Issue: 12, P. e17135 - e17135

Published: March 22, 2024

Climate change is currently considered one of the major threats to biodiversity and associated with an increase in frequency intensity extreme weather events, such as heatwaves. Heatwaves create acutely stressful conditions that may lead disruption performance survival ecologically economically important organisms, insect pollinators. In this study, we investigated impact simulated heatwaves on queenless microcolonies

Language: Английский

Citations

5
Climate change will alter Amazonian bumblebees’ distribution, but effects are species-specific DOI Creative Commons
Patrícia Nunes‐Silva, André Luís Acosta, Rafael Cabral Borges

et al.

Frontiers in Bee Science, Journal Year: 2025, Volume and Issue: 3

Published: Feb. 17, 2025

Introduction Understanding how climate change affects the distribution of Amazonian bumblebee species is essential for their conservation and pollination services they provide. This study focuses on two poorly known species, Bombus brevivillus transversalis , evaluating future scenarios may alter suitable habitats in Brazilian Amazon. Identifying potential refugia vulnerable areas crucial developing targeted strategies. Methods Species models were applied using occurrence data from museum records field collections. Climatic suitability was projected under baseline period (1970–2000) periods (2021–2040 2041–2060) high-emission scenario (SSP5-8.5) IPCC AR6 report. An ensemble modeling approach combining five different algorithms used to predict stability, habitat loss, range expansion. Results By 2060, B. lose 41.6% its current habitat, with significant reductions northern coastal regions. Conversely, expected retain 89.5% range, showing a westward shift. New climatically emerge both particularly western Amazon, potentially serving as refugia. Discussion The findings highlight species-specific responses change, being more than . These results emphasize need proactive measures protect critical mitigate impacts change. Future research should focus assessing thermal tolerance connectivity refine strategies ensure persistence these pollinators changing environmental conditions.

Language: Английский

Citations

0
Thermal limits of bumblebees and honeybees are modulated by different functional traits: predictions of a mechanistic model DOI Creative Commons
Sarah MacQueen, Dara A. Stanley, Jon M. Yearsley

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(5), P. e0320038 - e0320038

Published: May 6, 2025

Local weather conditions are expected to have species specific effects on the activity of insect pollinators. However, relationship between changing patterns and pollinator has not been well studied. We develop a thermodynamic model for thorax temperature that provides mechanistic link local functional traits (e.g. body mass, flight speed) activity. show behavioural warming cooling adaptations essential temperate bumblebees western honeybee, maximum air sustained depends primarily speed honeybees, whereas it upon both mass. Our results suggest these two groups will respond differently climate change, different bee may provide compensatory role each other in conditions. Thus, important crop pollination under future change.

Language: Английский

Citations

0
Climate warming and bumble bee declines: the need to consider sub-lethal heat, carry-over effects, and colony compensation DOI Creative Commons

Sabrina A. White,

Michael E. Dillon

Frontiers in Physiology, Journal Year: 2023, Volume and Issue: 14

Published: Oct. 31, 2023

Global declines in abundance and diversity of insects are now well-documented increasingly concerning given the critical diverse roles play all ecosystems. Habitat loss, invasive species, anthropogenic chemicals clearly detrimental to insect populations, but mounting evidence implicates climate change as a key driver globally. Warming temperatures combined with increased variability may expose organisms extreme heat that exceeds tolerance, potentially driving local extirpations. In this context, tolerance limits (e.g., thermal maximum, CT

Language: Английский

Citations

8
Variance in heat tolerance in bumble bees correlates with species geographic range and is associated with several environmental and biological factors DOI Creative Commons

Cody Feuerborn,

Gabriela M. Quinlan,

Rachael Shippee

et al.

Ecology and Evolution, Journal Year: 2023, Volume and Issue: 13(11)

Published: Nov. 1, 2023

Globally, insects have been impacted by climate change, with bumble bees in particular showing range shifts and declining species diversity global warming. This suggests heat tolerance is a likely factor limiting the distribution success of these bees. Studies shown high intraspecific variance bee thermal tolerance, suggesting biological environmental factors may be impacting resilience. Understanding important for assessing vulnerability finding solutions to mitigate effects change. In this study, we assess whether geographic variation eastern United States associated further dissect which other explain sensitivity We examine caste, sex, rearing condition (wild/lab) across six US species, role age, reproductive status, body size, interactive humidity temperature on Bombus impatiens. found marked differences that correlate each species' latitudinal range, habitat, climatic niche, significant caste sex. Queens had considerably lower than workers males, greater when queens would first leaving their natal nest, after ovary activation. Wild tended higher lab reared bees, size was only wild-caught foragers. Humidity showed strong interaction effects, pointing need regulate relative assays consider its nature. Altogether, most tested conditions impact highlight stages will sensitive future

Language: Английский

Citations

7
Do past and present abiotic conditions explain variation in the nutritional quality of wildflower pollens for bees? DOI
Anthony D. Vaudo, Eva Lin, Jillian A. Luthy

et al.

Evolutionary Ecology, Journal Year: 2024, Volume and Issue: 38(6), P. 941 - 955

Published: Aug. 26, 2024

Language: Английский

Citations

2
How climate change might impact insect movement via physiological mechanisms DOI Creative Commons
John S. Terblanche, Susana Clusella‐Trullas, Philipp Lehmann

et al.

One Earth, Journal Year: 2024, Volume and Issue: 7(4), P. 608 - 622

Published: April 1, 2024

Language: Английский

Citations

1
Leveraging Transcriptional Signatures of Diverse Stressors for Bumble Bee Conservation DOI Creative Commons
Gabriela M. Quinlan, Heather M. Hines, Christina M. Grozinger

et al.

Molecular Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

ABSTRACT Organisms in nature are subjected to a variety of stressors, often simultaneously. Foremost among stressors key pollinators pathogens, poor nutrition and climate change. Landscape transcriptomics can be used decipher the relative role provided there unique signatures stress that reliably detected field specimens. In this study, we identify biomarkers bumble bee ( Bombus impatiens ) responses by first subjecting bees various short‐term (cold, heat, pathogen challenge) laboratory setting assessing their transcriptome responses. Using random forest classification on whole data, were able discriminate each stressor. Our best model (tissue‐specific trained subset important genes) correctly predicted known with 92% accuracy. We then applied wild‐caught sampled across heatwave event at two sites central Pennsylvania, US, expected differ baseline temperature floral resource availability. Transcriptomes during heat wave's peak showed stress, while collected relatively cooler morning periods starvation cold stress. failed pick up signals shortly after heatwave, suggesting set is more useful for identifying acute than long‐term monitoring chronic, landscape‐level stressors. highlight future directions fine‐tune landscape towards development better both conservation improving understanding stressor impacts bees.

Language: Английский

Citations

0
Heat exposure limits pentose phosphate pathway activity in bumblebees DOI Creative Commons
Giulia S. Rossi,

A. Elbassiouny,

Jerrica M. Jamison

et al.

Conservation Physiology, Journal Year: 2024, Volume and Issue: 12(1)

Published: Jan. 1, 2024

Bumblebee populations across the globe are experiencing substantial declines due to climate change, with major consequences for pollination services in both natural and agricultural settings. Using an economically important species,

Language: Английский

Citations

0