One like all? Behavioral response range of native and invasive amphipods to neonicotinoid exposure

Environmental Pollution, Journal Year: 2024, Volume and Issue: 356, P. 124235 - 124235

Published: May 25, 2024

Native and invasive species often occupy similar ecological niches environments where they face comparable risks from chemical exposure. Sometimes, are phylogenetically related to native species, e.g. may come the same family have potentially sensitivities environmental stressors due phylogenetic conservatism similarity. However, empirical studies that aim understand nuanced impacts of chemicals on full range closely rare, yet would help comprehend patterns current biodiversity loss turnover. Behavioral sublethal endpoints increasing ecotoxicological interest. Therefore, we investigated behavioral responses (i.e., change in movement behavior) four dominant amphipod Rhine-Main area (central Germany) when exposed neonicotinoid thiacloprid. Moreover, beyond species-specific responses, interactions (e.g. parasitation with Acanthocephala) play a crucial role shaping behavior, considered these infections our analysis. Our findings revealed distinct baseline behaviors thiacloprid Notably, Gammarus fossarum exhibited biphasic changes hyperactivity at low concentrations decreased higher concentrations. Whereas pulex, roeselii Dikerogammarus villosus, showed no or weaker responses. This partly explain why G. disappears chemically polluted regions while other persist there certain degree. But it also shows potential pre-exposure habitat influence because habituation occurs, be harmful individuals habitat. The observed were further influenced by acanthocephalan parasites, which altered behavior enhanced response results underscore intricate diverse nature among highlighting their unique vulnerabilities anthropogenically impacted freshwater ecosystems.

Language: Английский

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Long‐term effects of widespread pharmaceutical pollution on trade‐offs between behavioural, life‐history and reproductive traits in fish

Journal of Animal Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 26, 2024

Abstract In our rapidly changing world, understanding how species respond to shifting conditions is of paramount importance. Pharmaceutical pollutants are widespread in aquatic ecosystems globally, yet their impacts on animal behaviour, life‐history and reproductive allocation remain poorly understood, especially the context intraspecific variation ecologically important traits that facilitate species' adaptive capacities. We test whether a pharmaceutical pollutant, fluoxetine (Prozac), disrupts trade‐off between individual‐level (co)variation behavioural, freshwater fish. exposed progeny wild‐caught guppies ( Poecilia reticulata ) three field‐relevant levels (mean measured concentrations: 0, 31.5 316 ng/L) for 5 years, across multiple generations. used 12 independent laboratory populations repeatedly quantified activity risk‐taking behaviour male guppies, capturing both mean behaviours within individuals exposure treatments. also key (body condition, coloration gonopodium size) assessed post‐copulatory sperm (sperm vitality, number velocity) known be under strong sexual selection polyandrous species. Intraspecific these was analysed using comprehensive, multivariate statistical approach. Fluoxetine had dose‐specific (mean) effect trait guppies: low pollutant altered body condition increased size, but reduced velocity. At individual level, behavioural plasticity by eroding within‐individual behaviour. between‐individual correlations pace‐of‐life syndrome traits: it triggered emergence (e.g. condition) size vitality), collapsed other size). Our results reveal chronic global can affect phenotypic at population levels, even alter among such manner. discuss need integrate analyses association with fully understand animals human‐induced environmental change.

Language: Английский

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Anthropogenic impacts at the interface of animal spatial and social behaviour

Philosophical Transactions of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 379(1912)

Published: Sept. 4, 2024

Human disturbance is contributing to widespread, global changes in the distributions and densities of wild animals. These anthropogenic impacts on wildlife arise from multiple bottom-up top-down pathways, including habitat loss, resource provisioning, climate change, pollution, infrastructure development, hunting our direct presence. Animal behaviour an important mechanism linking these disturbances population outcomes, although behavioural pathways are often complex can remain obscured when different aspects studied isolation one another. The spatial–social interface provides a lens for understanding how animal’s spatial social environments interact determine its phenotype (i.e. measurable characteristics individual), phenotypes feed back reshape environments. Here, we review studies animal at understand predict human affects movement, distribution intraspecific interactions, with consequences conservation populations ecosystems. By mechanisms better design management interventions mitigate undesired disturbance. This article part theme issue ‘The interface: theoretical empirical integration’.

Language: Английский

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Development of a gradual hypoxia chamber for assessing copper toxicity on air-breathing behavior in Lymnaea stagnalis

Toxicology Mechanisms and Methods, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 8

Published: Jan. 7, 2025

Behavioral endpoints are of increasing interest in toxicology because their sensitivity, but require clear guidance for experimental design. This study describes the design a hypoxia chamber use with pond snails, Lymnaea stagnalis. Studies assessing switch from water- to air-breathing hypoxic conditions have previously utilized methods that neglect intricacies animal behavior such as handling stress and acclimation. The provides linear decline dissolved oxygen, against which surfacing can be precisely measured. maximum biomass snails suitable chamber, nitrogen-driven deoxygenation curve is not altered by snails' own metabolism, was established greater than 10 adult snails. capacity most analysis softwares below accurately tracking individuals at once, indicating this likely limitation. size determined amount time each episode aerial respiration was, smaller spending more air-breathing. A proof-of-principle experiment using acute copper exposure (0 – 60 µg/L) yielded concentration-response curve, concentrations inhibiting described present an improved framework response presented manner allowing further modification meet unique research needs.

Language: Английский

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Behavioral responses to climate change and chemical pollution

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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