Effects of the Environmental Temperature on Insects

A special issue of Insects (ISSN 2075-4450).

Deadline for manuscript submissions: 31 August 2026 | Viewed by 1179

Special Issue Editor


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Guest Editor
Citrus Research Board, Riverside, CA 92507, USA
Interests: biological invasions; invasive species; biological control; IPM; parasitoids; species distribution models; ecological modeling; multivariate analysis; life- table invasion models; temperature; insect development

Special Issue Information

Dear Colleagues,

This Special Issue explores how environmental temperature shapes insect biology, ecology, and their roles in ecosystems. Temperature is one of the most important drivers of ectotherm physiology, influencing rates of development, survival, reproduction, and ultimately population dynamics and distribution. Over the past decades, models based on thermal physiology have advanced our ability to predict insect phenology and geographic range shifts. Yet, much less is known about how temperature affects insect behavior, even though behavioral plasticity can be critical for species persistence, interactions, and ecosystem stability under climate change.

We are particularly interested in contributions that integrate physiology and behavior to better understand how insects respond to both gradual shifts in mean temperatures and short-term extreme thermal events. Studies examining thermal tolerance, behavioral thermoregulation, and plasticity at individual, population, or community scales are especially welcome. We also encourage work that links empirical data with modeling approaches, from stage-structured population models to individual-based frameworks, that capture the variability of responses within and among species.

By bridging thermal biology, behavioral ecology, and population dynamics, this Special Issue aims to highlight new insights into how insects cope with temperature variation and extremes, and what this means for ecosystems under climate change. We invite original research articles, reviews, short communications, and concept papers that showcase innovative methods, empirical findings, or theoretical advances on this timely topic.

Dr. Ivan Milosavljević
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Insects is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • environmental temperature
  • insect thermal biology
  • behavioral ecology
  • climate change
  • thermal tolerance
  • insect ecology
  • population dynamics
  • thermal plasticity
  • extreme thermal events

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Published Papers (2 papers)

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Research

13 pages, 757 KB  
Article
Early-Life Heat Stress Exposes Genotype-Dependent Male Fertility Limits in Drosophila melanogaster Under Sublethal Agrochemical Exposure
by David A. Sánchez-Rodríguez, Ying Ting Yang, Felipe Martelli and Nina Wedell
Insects 2026, 17(4), 426; https://doi.org/10.3390/insects17040426 - 16 Apr 2026
Viewed by 250
Abstract
Insect populations are increasingly exposed to concurrent climate warming and agrochemical contamination, yet how these stressors interact to influence reproductive performance remains poorly understood. Because fertility can constrain population growth before survival declines, understanding how environmental stress affects reproduction is essential for predicting [...] Read more.
Insect populations are increasingly exposed to concurrent climate warming and agrochemical contamination, yet how these stressors interact to influence reproductive performance remains poorly understood. Because fertility can constrain population growth before survival declines, understanding how environmental stress affects reproduction is essential for predicting demographic responses. Here, we investigated how elevated temperatures and sublethal imidacloprid exposure during development and early-life interact with the insecticide resistance locus Cyp6g1 to influence male reproductive performance in Drosophila melanogaster. Males were reared from embryo to adulthood under factorial combinations of temperature and insecticide exposure, and mating behaviour and fertilisation success were subsequently quantified under benign assay conditions. Early-life heat reduced fertilisation success in a genotype-dependent manner, with a pronounced collapse observed in insecticide-susceptible males. Sublethal insecticide exposure modified this thermal response, restoring fertilisation success in susceptible males and producing non-additive interactions between thermal and agrochemical stress. In contrast, although mating frequency varied across treatments, it did not show the pronounced decline observed in fertilisation success, indicating that behavioural engagement does not necessarily predict functional reproductive output. These results suggest that environmental stress experienced during early-life can reshape reproductive performance, potentially through genotype-dependent shifts in physiological investment. Considering developmental stress history and genetic variation will therefore be important for predicting insect population responses to climate warming and environmental contamination. Full article
(This article belongs to the Special Issue Effects of the Environmental Temperature on Insects)
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8 pages, 2407 KB  
Article
Estimation of Selection Intensity Against Dark Color Forms of the Spittlebug Philaenus spumarius (L.) in a Warming Climate
by Vinton Thompson
Insects 2026, 17(3), 263; https://doi.org/10.3390/insects17030263 - 1 Mar 2026
Viewed by 542
Abstract
Climate warming puts new selective pressures on natural populations, but there are few quantitative measurements of selection in natural populations over protracted time periods. Observations made at the beginning and end ofa 47-year cumulative increase of 2.7 °C in the mean September temperature [...] Read more.
Climate warming puts new selective pressures on natural populations, but there are few quantitative measurements of selection in natural populations over protracted time periods. Observations made at the beginning and end ofa 47-year cumulative increase of 2.7 °C in the mean September temperature in Northern Minnesota, USA, permit quantitative estimation of selection against a suite of alleles at a single locus determining the expressionof dark color forms in populations of the meadow spittlebug, Philaenus spumarius (L.) (Hemiptera: Cercopoidea: Aphrophoridae). Alternative methods of estimation of the selection coefficient s, a measure of the intensity of selection, produce values of s = 0.0125 and 0.0218, respectively, corresponding to a disadvantage of about one to two percent per year or, since P. spumarius is univoltine, per round of selection. The existence of a locus under selection presents an opportunity for molecular localization and characterization of the genetic locus determining color form. Philaenus spumarius is of particular interest in Europe, as it is the major local vector of the bacterial plant pathogen Xylella fastidiosa. Full article
(This article belongs to the Special Issue Effects of the Environmental Temperature on Insects)
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