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Zaman R, Shah A, Ishangulyyeva G, Erbilgin N. Exploring behavioural and physiological adaptations in mountain pine beetle in response to elevated ozone concentrations. CHEMOSPHERE 2024; 362:142751. [PMID: 38960047 DOI: 10.1016/j.chemosphere.2024.142751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 06/23/2024] [Accepted: 06/30/2024] [Indexed: 07/05/2024]
Abstract
Elevated ozone (eO3) concentrations pose a threat to insect populations by potentially altering their behaviour and physiology. This study investigates the effects of eO3 concentrations on the mountain pine beetle which is a major tree-killing species of conifers in northwestern North America. We are particularly interested in understanding the effects of eO3 concentrations on beetle behaviour and physiology and possible transgenerational impacts on bark beetle broods. We conducted O3-enrichment experiments in a controlled laboratory setting using different O3 concentrations (100-200 ppb; projected for 2050-2100) and assessed various beetle responses, including CO2 respiration, mating behaviour, survival probability, locomotion, and attraction behaviour. Transgenerational impacts on the first and second generations were also analyzed by studying brood morphology, mating behaviour, survival, and pheromone production. We found that beetles exposed to eO3 concentrations had shorter oviposition galleries and reduced brood production. Beetle pheromones were also degraded by eO3 exposure. However, exposure to eO3 also prompted various adaptive responses in beetles. Despite reduced respiration, eO3 improved locomotor activity and the olfactory response of beetles. Surprisingly, beetle survival probability was also improved both in the parents and their broods. We also observed transgenerational plasticity in the broods of eO3-exposed parents, suggesting potential stress resistance mechanisms. This was evident by similar mating success, oviposition gallery length, and brood numbers produced in both control and eO3 concentration treatments. This study demonstrates the sensitivity of mountain pine beetles to increased O3 concentrations, contributing crucial insights into the ecological implications of eO3 concentrations on their populations. Overall, the outcome of this study contributes to informed climate change mitigation strategies and adaptive management practices for the development of resilient forests in response to emerging forest insect pests worldwide.
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Affiliation(s)
- Rashaduz Zaman
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada.
| | - Ateeq Shah
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada
| | - Guncha Ishangulyyeva
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada
| | - Nadir Erbilgin
- Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2E3, Canada
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Ryalls JMW, Bishop J, Mofikoya AO, Bromfield LM, Nakagawa S, Girling RD. Air pollution disproportionately impairs beneficial invertebrates: a meta-analysis. Nat Commun 2024; 15:5447. [PMID: 38992007 PMCID: PMC11239652 DOI: 10.1038/s41467-024-49729-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 06/18/2024] [Indexed: 07/13/2024] Open
Abstract
Air pollution has the potential to disrupt ecologically- and economically-beneficial services provided by invertebrates, including pollination and natural pest regulation. To effectively predict and mitigate this disruption requires an understanding of how the impacts of air pollution vary between invertebrate groups. Here we conduct a global meta-analysis of 120 publications comparing the performance of different invertebrate functional groups in unpolluted and polluted atmospheres. We focus on the pollutants ozone, nitrogen oxides, sulfur dioxide and particulate matter. We show that beneficial invertebrate performance is reduced by air pollution, whereas the performance of plant pest invertebrates is not significantly affected. Ozone pollution has the most detrimental impacts, and these occur at concentrations below national and international air quality standards. Changes in invertebrate performance are not dependent on air pollutant concentrations, indicating that even low levels of pollution are damaging. Predicted increases in tropospheric ozone could result in unintended consequences to global invertebrate populations and their valuable ecological services.
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Affiliation(s)
- James M W Ryalls
- School of Agriculture, Policy and Development, University of Reading, Reading, Berkshire, RG6 6EU, UK.
| | - Jacob Bishop
- School of Agriculture, Policy and Development, University of Reading, Reading, Berkshire, RG6 6EU, UK
| | - Adedayo O Mofikoya
- School of Agriculture, Policy and Development, University of Reading, Reading, Berkshire, RG6 6EU, UK
| | - Lisa M Bromfield
- School of Agriculture, Policy and Development, University of Reading, Reading, Berkshire, RG6 6EU, UK
| | - Shinichi Nakagawa
- Evolution and Ecology Research Centre, School of Biological and Environmental Science, University of New South Wales, Sydney, NSW, 2052, Australia
- Department of Biological Sciences, University of Alberta, CW 405, Biological Sciences Building, Edmonton, AB, T6G 2E9, Canada
| | - Robbie D Girling
- School of Agriculture, Policy and Development, University of Reading, Reading, Berkshire, RG6 6EU, UK
- Centre for Sustainable Agricultural Systems, Institute for Life Sciences and the Environment, University of Southern Queensland, Toowoomba, QLD, 4350, Australia
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Boff S, Ayasse M. Exposure to sublethal concentration of flupyradifurone alters sexual behavior and cuticular hydrocarbon profile in Heriades truncorum, an oligolectic solitary bee. INSECT SCIENCE 2024; 31:859-869. [PMID: 37602924 DOI: 10.1111/1744-7917.13268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 07/11/2023] [Accepted: 07/25/2023] [Indexed: 08/22/2023]
Abstract
The aboveground oligolectic bee, Heriades truncorum, is a particularly good model for studying the impact of pesticides on sexual communication, since some aspects of its mating behavior have previously been described. We have tested (1) the interference of the pesticide flupyradifurone on male precopulatory behavior and male mating partner preferences, (2) the way that the pesticide interferes in male quality assessment by the female, and (3) the effects of the pesticide on the chemical compounds in the female cuticle. We exposed bees of both sexes to a sublethal concentration of flupyradifurone. Various behaviors were registered in a mating arena with two females (one unexposed and one exposed) and one male (either unexposed or exposed). Unexposed males were quicker to attempt to mate. Treatment also impacted precopulatory behavior and male quality assessment by females. Males approached unexposed females more quickly than insecticide-exposed ones. Females exposed to insecticide produced lower amounts of some cuticular hydrocarbons (sex pheromone candidates) and appeared less choosy than unexposed females. Our findings suggest that insecticide exposure affects sexual communication, playing a role both in male preference and in male quality assessment by the female.
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Affiliation(s)
- Samuel Boff
- Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany
| | - Manfred Ayasse
- Institute of Evolutionary Ecology and Conservation Genomics, Ulm University, Ulm, Germany
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Jiang NJ, Dong X, Veit D, Hansson BS, Knaden M. Elevated ozone disrupts mating boundaries in drosophilid flies. Nat Commun 2024; 15:2872. [PMID: 38605003 PMCID: PMC11009341 DOI: 10.1038/s41467-024-47117-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/19/2024] [Indexed: 04/13/2024] Open
Abstract
Animals employ different strategies to establish mating boundaries between closely related species, with sex pheromones often playing a crucial role in identifying conspecific mates. Many of these pheromones have carbon-carbon double bonds, making them vulnerable to oxidation by certain atmospheric oxidant pollutants, including ozone. Here, we investigate whether increased ozone compromises species boundaries in drosophilid flies. We show that short-term exposure to increased levels of ozone degrades pheromones of Drosophila melanogaster, D. simulans, D. mauritiana, as well as D. sechellia, and induces hybridization between some of these species. As many of the resulting hybrids are sterile, this could result in local population declines. However, hybridization between D. simulans and D. mauritiana as well as D. simulans and D. sechellia results in fertile hybrids, of which some female hybrids are even more attractive to the males of the parental species. Our experimental findings indicate that ozone pollution could potentially induce breakdown of species boundaries in insects.
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Affiliation(s)
- Nan-Ji Jiang
- Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany
- Next Generation Insect Chemical Ecology, Max Planck Centre, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany
| | - Xinqi Dong
- Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany
| | - Daniel Veit
- Max Planck Institute for Chemical Ecology, Hans-Knöll Straße 8, D-07745, Jena, Germany
| | - Bill S Hansson
- Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany
- Next Generation Insect Chemical Ecology, Max Planck Centre, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany
| | - Markus Knaden
- Department of Evolutionary Neuroethology, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany.
- Next Generation Insect Chemical Ecology, Max Planck Centre, Max Planck Institute for Chemical Ecology, Hans-Knöll-Straße 8, D-07745, Jena, Germany.
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Torto B, Tchouassi DP. Chemical Ecology and Management of Dengue Vectors. ANNUAL REVIEW OF ENTOMOLOGY 2024; 69:159-182. [PMID: 37625116 DOI: 10.1146/annurev-ento-020123-015755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/27/2023]
Abstract
Dengue, caused by the dengue virus, is the most widespread arboviral infectious disease of public health significance globally. This review explores the communicative function of olfactory cues that mediate host-seeking, egg-laying, plant-feeding, and mating behaviors in Aedes aegypti and Aedes albopictus, two mosquito vectors that drive dengue virus transmission. Aedes aegypti has adapted to live in close association with humans, preferentially feeding on them and laying eggs in human-fabricated water containers and natural habitats. In contrast, Ae. albopictus is considered opportunistic in its feeding habits and tends to inhabit more vegetative areas. Additionally, the ability of both mosquito species to locate suitable host plants for sugars and find mates for reproduction contributes to their survival. Advances in chemical ecology, functional genomics, and behavioral analyses have improved our understanding of the underlying neural mechanisms and reveal novel and specific olfactory semiochemicals that these species use to locate and discriminate among resources in their environment. Physiological status; learning; and host- and habitat-associated factors, including microbial infection and abundance, shape olfactory responses of these vectors. Some of these semiochemicals can be integrated into the toolbox for dengue surveillance and control.
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Affiliation(s)
- Baldwyn Torto
- International Centre of Insect Physiology and Ecology, Nairobi, Kenya; ,
| | - David P Tchouassi
- International Centre of Insect Physiology and Ecology, Nairobi, Kenya; ,
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Dalbosco Dell'Aglio D, Rivas-Sánchez DF, Wright DS, Merrill RM, Montgomery SH. The Sensory Ecology of Speciation. Cold Spring Harb Perspect Biol 2024; 16:a041428. [PMID: 38052495 PMCID: PMC10759811 DOI: 10.1101/cshperspect.a041428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
In this work, we explore the potential influence of sensory ecology on speciation, including but not limited to the concept of sensory drive, which concerns the coevolution of signals and sensory systems with the local environment. The sensory environment can influence individual fitness in a variety of ways, thereby affecting the evolution of both pre- and postmating reproductive isolation. Previous work focused on sensory drive has undoubtedly advanced the field, but we argue that it may have also narrowed our understanding of the broader influence of the sensory ecology on speciation. Moreover, the clearest examples of sensory drive are largely limited to aquatic organisms, which may skew the influence of contributing factors. We review the evidence for sensory drive across environmental conditions, and in this context discuss the importance of more generalized effects of sensory ecology on adaptive behavioral divergence. Finally, we consider the potential of rapid environmental change to influence reproductive barriers related to sensory ecologies. Our synthesis shows the importance of sensory conditions for local adaptation and divergence in a range of behavioral contexts and extends our understanding of the interplay between sensory ecology and speciation.
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Affiliation(s)
- Denise Dalbosco Dell'Aglio
- School of Biological Science, University of Bristol, Bristol BS8 1TQ, United Kingdom
- Smithsonian Tropical Research Institute, Gamboa 0843-03092, Panama
| | - David F Rivas-Sánchez
- School of Biological Science, University of Bristol, Bristol BS8 1TQ, United Kingdom
| | - Daniel Shane Wright
- Faculty of Biology, Division of Evolutionary Biology, LMU Munich, 82152 Planegg-Martinsried, Germany
| | - Richard M Merrill
- Smithsonian Tropical Research Institute, Gamboa 0843-03092, Panama
- Faculty of Biology, Division of Evolutionary Biology, LMU Munich, 82152 Planegg-Martinsried, Germany
| | - Stephen H Montgomery
- School of Biological Science, University of Bristol, Bristol BS8 1TQ, United Kingdom
- Smithsonian Tropical Research Institute, Gamboa 0843-03092, Panama
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Kozlov MV. Phenotypic Diversity of a Leafroller Archips podana (Lepidoptera, Tortricidae) Does Not Change along an Industrial Pollution Gradient. INSECTS 2023; 14:927. [PMID: 38132600 PMCID: PMC10743578 DOI: 10.3390/insects14120927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Morphological polymorphism offers rich opportunities for studying the eco-evolutionary mechanisms that drive the adaptations of local populations to heterogeneous and changing environments. In this study, I explore the association between pollution load, abundance of large fruit-tree tortrix Archips podana and its within-species diversity (expressed in the presence of apical and/or lateral prongs on the phallus in male genitalia) across 26 study sites located 0.5 to 31 km from the industrial city of Lipetsk in central Russia. The Shannon diversity index, calculated from the frequencies of four morphs, correlated neither with the distance to the nearest industrial polluter (a proxy of pollution load) nor with the number of moths captured by pheromone traps (a measure of population abundance). The statistical power of the correlation analysis was sufficient (67%) to detect a medium effect (i.e., Pearson correlation coefficient with an absolute value of 0.40), if it existed. I conclude that the four phenotypes of A. podana do not differ in tolerance to industrial pollution and similarly respond to pollution-induced environmental disturbance. This is the first study of industrial pollution impacts on within-species diversity of insects expressed in the discrete traits of their male genitalia.
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Affiliation(s)
- Mikhail V Kozlov
- Department of Biology, University of Turku, 20014 Turku, Finland
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Alves DA, George EA, Kaur R, Brockmann A, Hrncir M, Grüter C. Diverse communication strategies in bees as a window into adaptations to an unpredictable world. Proc Natl Acad Sci U S A 2023; 120:e2219031120. [PMID: 37279263 PMCID: PMC10268221 DOI: 10.1073/pnas.2219031120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
Communication is a fundamental feature of animal societies and helps their members to solve the challenges they encounter, from exploiting food sources to fighting enemies or finding a new home. Eusocial bees inhabit a wide range of environments and they have evolved a multitude of communication signals that help them exploit resources in their environment efficiently. We highlight recent advances in our understanding of bee communication strategies and discuss how variation in social biology, such as colony size or nesting habits, and ecological conditions are important drivers of variation in communication strategies. Anthropogenic factors, such as habitat conversion, climate change, or the use of agrochemicals, are changing the world bees inhabit, and it is becoming clear that this affects communication both directly and indirectly, for example by affecting food source availability, social interactions among nestmates, and cognitive functions. Whether and how bees adapt their foraging and communication strategies to these changes represents a new frontier in bee behavioral and conservation research.
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Affiliation(s)
- Denise A. Alves
- Department of Entomology and Acarology, Luiz de Queiroz College of Agriculture, University of São Paulo, Lausanne,13418-900Piracicaba, Brazil
| | - Ebi A. George
- Department of Ecology and Evolution, Biophore, University of Lausanne, Bristol1015, Switzerland
| | - Rajbir Kaur
- School of Biological Sciences, University of BristolBS8 1TQ, United Kingdom
| | - Axel Brockmann
- National Centre for Biological Sciences – Tata Institute of Fundamental Research, Bengaluru560065, India
| | - Michael Hrncir
- Department of Physiology, Bioscience Institute, University of São Paulo05508-090São Paulo, Brazil
| | - Christoph Grüter
- School of Biological Sciences, University of BristolBS8 1TQ, United Kingdom
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