The complexity of global change and its effects on insects

Yang, Louie H.; Postema, Elizabeth; Hayes, Tracie; Lippey, Mia K; MacArthur-Waltz, Dylan J.

doi:10.1016/j.cois.2021.05.001

Cited by 35 publications

(20 citation statements)

References 146 publications

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“…Exposure to extreme temperatures can be highly variable across heterogeneous landscapes and growing seasons among years. Complex interactions between climate change and phenology can lead to dramatic shifts in local conditions and mismatches that can influence the exposure of insects to spring temperature extremes after hatching or emergence (Forrest, 2016;Pureswaran et al, 2018;Yang et al, 2021). Invasive species with distributions extending into novel climate regions provide an important example of how temperature constraints can shape thermal performance, and ultimately impact population persistence and range limits.…”

Section: Discussionmentioning

confidence: 99%

“…Global climate change is driving complex and geographically variable alterations to temperature and microclimate, which in turn can impact population persistence and geographic ranges of organisms. These consequences occur through the impacts of climate change on phenology, growing season length, or the frequency and severity of thermal extremes (Yang et al, 2021). Insects, as short-lived ectotherms, are excellent systems for studying these responses as their physiological performance is sensitive to temperature and their small size allows for experimental studies that might not otherwise be feasible in larger organisms.…”

Section: Introductionmentioning

confidence: 99%

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Geographic variation in larval cold tolerance and exposure across the invasion front of a widely established forest insect

Hafker

Thompson

Parry

et al. 2021

Preprint

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As the global climate changes, high and low temperature extremes can drive changes in species distributions. Across the range of a species, thermal tolerance can experience plasticity and may undergo selection, shaping resilience to temperature stress. In this study, we measured variation in the lower thermal tolerance of early instar larvae of an invasive forest insect, Lymantria dispar dispar L. (Lepidoptera: Erebidae), using populations sourced from the climatically diverse invasion of the Eastern United States. In two chill coma recovery experiments, we recorded recovery time following a period of exposure to a non-lethal cold temperature. A third experiment quantified growth responses after chill coma recovery to evaluate sublethal effects. Our results indicate that cold tolerance is linked to regional climate, with individuals from cold climate populations recovering faster from chill coma. While this geographic gradient is seen in many species, detecting this pattern is notable for an introduced species founded from a single point-source introduction. We demonstrate that the cold temperatures used in our experiments occur in nature from cold snaps after spring hatching, but negative impacts to growth and survival appear low. We expect that population differences in cold temperature performance manifest more from differences in temperature-dependent growth than acute exposure. Evaluating intraspecific variation in cold tolerance increases our understanding of the role of climatic gradients on the physiology of an invasive species, and contributes to tools for predicting further expansion.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Geographic variation in larval cold tolerance and exposure across the invasion front of a widely established forest insect

Hafker

Thompson

Parry

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…In this view, abiotic climate drivers are not strict alternatives to biotic hypotheses; the climate is a fundamental driver with both direct effects and broad indirect effects mediated by the biotic community, including changes in the timing, quality, and quantity of milkweed host plants. This study highlights the importance of developing temporally explicit, sequential hypotheses (Yang, 2020;Yang et al, 2021) to examine how climatic variation shapes the seasonal timing and magnitude of abiotic, bottom-up, and top-down constraints on species interactions.…”

Section: The Fundamental Effects Of Climatementioning

confidence: 99%

Different factors limit early‐ and late‐season windows of opportunity for monarch development

Yang

Swan²,

Bastin³

et al. 2022

Ecology and Evolution

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Seasonal windows of opportunity are intervals within a year that provide improved prospects for growth, survival, or reproduction. However, few studies have sufficient temporal resolution to examine how multiple factors combine to constrain the seasonal timing and extent of developmental opportunities. Here, we document seasonal changes in milkweed (Asclepias fascicularis)-monarch (Danaus plexippus) interactions with high resolution throughout the last three breeding seasons prior to a precipitous single-year decline in the western monarch population. Our results show early-and late-season windows of opportunity for monarch recruitment that were constrained by different combinations of factors. Early-season windows of opportunity were characterized by high egg densities and low survival on a select subset of host plants, consistent with the hypothesis that early-spring migrant female monarchs select earlieremerging plants to balance a seasonal trade-off between increasing host plant quantity and decreasing host plant quality. Late-season windows of opportunity were coincident with the initiation of host plant senescence, and caterpillar success was negatively correlated with heatwave exposure, consistent with the hypothesis that late-season windows were constrained by plant defense traits and thermal stress. Throughout this study, climatic and microclimatic variations played a foundational role in the timing and success of monarch developmental windows by affecting bottom-up, top-down, and abiotic limitations. More exposed microclimates were associated with higher developmental success during cooler conditions, and more shaded microclimates were associated with higher developmental success during warmer conditions, suggesting that habitat heterogeneity could buffer the effects of climatic variation. Together, these findings show an important dimension of seasonal change in milkweed-monarch interactions and illustrate how different biotic and abiotic factors can limit the developmental success of monarchs across the breeding season. These results also suggest the potential for seasonal sequences of favorable or unfavorable conditions across the breeding range to strongly affect monarch population dynamics.

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“…In many cases, most of the registered facts showing population decline were obtained as a result of geographically limited studies. That is why it is impossible to draw conclusions about the decline in the number of insects on a continental or global scale (Kestemont, 2019;Batschynskaja et al, 2020;Khalimov, 2020;Montgomery et al, 2020;Yang et al, 2021). In this regard, it is relevant to study the insect distribution within regional faunas, by carrying out an inventory of species and individual taxonomic groups that are poorly studied (Wheeler, 1990;Montgomery et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Distribution of species from the genus Panorpa (Mecoptera, Panorpidae) in European Russia except the Caucasus

Dvořák¹,

Ruchin²,

Egorov³

et al. 2023

Nat. Conserv. Res.

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The study of the insect distribution in geographical areas is relevant since it is important in terms of understanding the global trend of biodiversity decline. The paper presents the results of a study on the distribution of six species of Panorpidae (Mecoptera), carried out in 2008, 2009, 2011, 2015, 2017–2020. One part of data was collected by the authors. Other material was provided by colleagues from 11 regions in Russia. In European Russia, six species of Panorpa are reliably known, namely Panorpa alpina, P. cognata, P. communis, P. germanica, P. hybrida, and P. vulgaris. The most common and frequently encountered species are P. communis (in 21 regions), P. hybrida (in 12 regions), P. vulgaris (in 11 regions), and P. cognata (in 11 regions). It is assumed that all studied species can be found in other regions of European Russia as a result of further investigations. Among the studied species, P. alpina and P. germanica are the rarest species, recorded from two and one regions, respectively. Panorpa vulgaris was found for the first time in Russia.

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The complexity of global change and its effects on insects

Cited by 35 publications

References 146 publications

Geographic variation in larval cold tolerance and exposure across the invasion front of a widely established forest insect

Geographic variation in larval cold tolerance and exposure across the invasion front of a widely established forest insect

Different factors limit early‐ and late‐season windows of opportunity for monarch development

Distribution of species from the genus Panorpa (Mecoptera, Panorpidae) in European Russia except the Caucasus

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