Winter temperature effects in a cold-adapted northern population of a range-expanding spider: survival, energy stores, and differential gene expression DOI Open Access
Carolina Ortiz-Movliav, Marina Wolz, Michael Klockmann

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 29, 2024

Abstract Species expand their spatial distribution when environmental conditions are favorable or mutations arise that allow them to live in previously unfavorable conditions. The European wasp spider, Argiope bruennichi , is known have expanded its range poleward faster than climate change would predict. Northern edge populations show higher cold tolerance and genetically differentiated from core populations, suggesting local adaptation colder winter To investigate the degree limits of plasticity a cold-adapted population, we exposed overwintering juveniles (spiderlings) Estonia - northern three regimes: two with strong difference day/night temperatures an overall 10 degrees’ (warm treatment) one moderate less between day night (moderate). We investigated if survival, lipid content, metabolites, gene expression patterns differ depending on these temperature regimes. survival probability spiderlings content decreased over winter, no treatments, high resilience towards very different regimes at distribution. At end saturated monounsaturated fatty acids per spiderling also did not treatments. However, omega-3 polyunsaturated (PUFAs) levels were significantly lower spiders warm increased metabolic activity. identified 4096 significant differentially expressed genes (DEGs) across which 1389 specific for treatment, 832 while 69 unique showing stronger stress response warmer treatment. Taken together, our results A. has physiological ability cope despite being adapted. winters might come costs could impact spiderlingś foraging success they emerge egg sac spring.

Language: Английский

Rapid butterfly declines across the United States during the 21st century DOI
Collin B. Edwards, Elise F. Zipkin, Erica Henry

et al.

Science, Journal Year: 2025, Volume and Issue: 387(6738), P. 1090 - 1094

Published: March 6, 2025

Numerous declines have been documented across insect groups, and the potential consequences of losses are dire. Butterflies most surveyed taxa, yet analyses limited in geographic scale or rely on data from a single monitoring program. Using records 12.6 million individual butterflies >76,000 surveys 35 programs, we characterized overall species-specific butterfly abundance trends contiguous United States. Between 2000 2020, total fell by 22% 554 recorded species. Species-level were widespread, with 13 times as many species declining increasing. The prevalence throughout all regions States highlights an urgent need to protect further losses.

Language: Английский

Citations

5
Elevated extinction risk in over one-fifth of native North American pollinators DOI Creative Commons
Tara M. Cornelisse, David W. Inouye, Rebecca E. Irwin

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(14)

Published: March 24, 2025

Pollinators are critical for food production and ecosystem function. Although native pollinators thought to be declining, the evidence is limited. This first, taxonomically diverse assessment mainland North America north of Mexico reveals that 22.6% (20.6 29.6%) 1,579 species in best-studied vertebrate insect pollinator groups have elevated risk extinction. All three pollinating bat at bees group most (best estimate, 34.7% 472 assessed, range 30.3 43.0%). Substantial numbers butterflies (19.5% 632 species, 19.1 21.0%) moths (16.1% 142 15.5 19.0%) also risk, with flower flies (14.7% 295 11.5 32.9%), beetles (12.5% 18 11.1 22.2%), hummingbirds (0% 17 species) more secure. At-risk concentrated where diversity highest, southwestern United States. Threats vary geographically: climate change West North, agriculture Great Plains, pollution, agriculture, urban development East. Woodland, shrubland/chaparral, grassland habitats support greatest at-risk pollinators. Strategies improving habitat increasingly available, this study identifies habitats, threats need conservation actions state, provincial, territorial, national, continental levels.

Language: Английский

Citations

1
Evaluating the Impact of Climate Change on the Asia Habitat Suitability of Troides helena Using the MaxEnt Model DOI Creative Commons

Fengrong Yang,

Quanwei Liu, Jun‐Yi Yang

et al.

Insects, Journal Year: 2025, Volume and Issue: 16(1), P. 79 - 79

Published: Jan. 14, 2025

Butterflies are highly sensitive to climate change, and Troides helena, as an endangered butterfly species, is also affected by these changes. To enhance the conservation of T. helena effectively plan its protected areas, it crucial understand potential impacts change on distribution. This study utilized a MaxEnt model in combination with ArcGIS technology predict global suitable habitats under current future conditions, using species’ distribution data relevant environmental variables. The results indicated that provided good prediction accuracy for helena. Under scenario, species primarily distributed tropical regions, high suitability areas concentrated rainforest climates. In scenarios, habitat medium categories generally show expansion trend, which increases over time. Especially SSP5-8.5 2090s, area projected increase 42.85%. analysis key factors revealed precipitation wettest quarter (Bio16) was most significant factor affecting has demands temperature can adapt warming. valuable identifying optimal provides reference efforts.

Language: Английский

Citations

0
Conserving apollo butterflies: habitat characteristics and conservation implications in Southwest Finland DOI Creative Commons
Jonna M. Kukkonen, Mikael von Numers, Jon E. Brommer

et al.

Journal of Insect Conservation, Journal Year: 2024, Volume and Issue: 28(6), P. 1199 - 1210

Published: Aug. 9, 2024

Abstract The conservation of insects, particularly endangered species such as the Apollo butterfly, is a pressing global concern. Understanding habitat requirements and factors influencing occupancy crucial for designing effective strategies. We focused on investigating characteristics expected to affect nationally butterfly in Southwest Finland. conducted field surveys GIS analysis assess impact larval host plant adult nectar resources, encroachment, elevation, connectivity, spatial variation rocky outcrop habitats. found that outcrops with abundant plants those less isolated from patches play significant role supporting reproduction, whereas specifically increased tree volume, negatively affected occupancy. additionally observed across different blocks within study area. Our findings emphasise importance resource availability butterflies highlight dynamic nature their requirements. Maintaining network intact suitable resources essential long-term persistence population region. Implications insect conservation: research underscores critical need protect restore habitats by addressing threats encroachment construction projects pose risks breeding sites.

Language: Английский

Citations

1
Transcriptome and Expression Analysis of Glycerol Biosynthesis-Related Genes in Glenea cantor Fabricius (Cerambycidae: Lamiinae) DOI Open Access

Tai-Hui Lan,

Ran-Ran Su, Zishu Dong

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(21), P. 11834 - 11834

Published: Nov. 4, 2024

Fabricius (Cerambycidae: Lamiinae) is an important pest that damages kapok trees in Southeast Asia with a wide adaptability to temperature. Glycerol protectant and energy source for insects low-temperature environments. However, glycerol biosynthesis-related genes at the molecular level are limited

Language: Английский

Citations

0
Winter temperature effects in a cold-adapted northern population of a range-expanding spider: survival, energy stores, and differential gene expression DOI Open Access
Carolina Ortiz-Movliav, Marina Wolz, Michael Klockmann

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 29, 2024

Abstract Species expand their spatial distribution when environmental conditions are favorable or mutations arise that allow them to live in previously unfavorable conditions. The European wasp spider, Argiope bruennichi , is known have expanded its range poleward faster than climate change would predict. Northern edge populations show higher cold tolerance and genetically differentiated from core populations, suggesting local adaptation colder winter To investigate the degree limits of plasticity a cold-adapted population, we exposed overwintering juveniles (spiderlings) Estonia - northern three regimes: two with strong difference day/night temperatures an overall 10 degrees’ (warm treatment) one moderate less between day night (moderate). We investigated if survival, lipid content, metabolites, gene expression patterns differ depending on these temperature regimes. survival probability spiderlings content decreased over winter, no treatments, high resilience towards very different regimes at distribution. At end saturated monounsaturated fatty acids per spiderling also did not treatments. However, omega-3 polyunsaturated (PUFAs) levels were significantly lower spiders warm increased metabolic activity. identified 4096 significant differentially expressed genes (DEGs) across which 1389 specific for treatment, 832 while 69 unique showing stronger stress response warmer treatment. Taken together, our results A. has physiological ability cope despite being adapted. winters might come costs could impact spiderlingś foraging success they emerge egg sac spring.

Language: Английский

Citations

0