Effects of a temperate heatwave on diel rhythms of insect activity: a comparison across habitats

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Янв. 12, 2025

ABSTRACT The increasing frequency and intensity of heatwave events in temperate climates threatens to alter behavioural rhythms ectothermic animals, such as insects. However, it is poorly understood how heatwaves affect daily activity patterns insects, whether shaded microclimates can moderate these responses. We investigated impacts a on the diel profile insect activity, comparing effects across open, tree-covered hedged habitats. Using yellow pan traps, was monitored from 07:00 19:00 ten non-consecutive days, including two during heatwave. Insect counts exhibited unimodal relationship with temperature. During open habitat significant (∼81.9%) reduction compared ‘non-heatwave’ field-days, one before after Smaller, non-significant reductions were observed (38.3%) (17.8%) non-heatwave days approximated relationship, GLMM-estimated peaking around 15:00; by contrast, bimodal profile, predicted highest morning evening. Such heatwave-induced deformations patterns, modelled interactions between time-of-day, all three types. findings suggest that markedly decrease levels, whilst shade-providing vegetational features may reduce this effect, are affected landscape-wide. As become more frequent, preservation trees hedges landscapes likely crucial support resilience wider ecosystem functioning.

Язык: Английский

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Butterfly diversity in relation to the CORINE land cover of the Culuccia Peninsula (Sardinia, Italy)

Journal of Insect Conservation, Год журнала: 2025, Номер 29(1)

Опубликована: Фев. 1, 2025

Язык: Английский

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Effects of a temperate heatwave on diel rhythms of insect activity: A comparison across habitats

Ecological Entomology, Год журнала: 2025, Номер unknown

Опубликована: Апрель 4, 2025

Abstract The increasing frequency and intensity of heatwave events in temperate climates threaten to alter behavioural rhythms ectothermic animals, such as insects. However, it is poorly understood how heatwaves affect daily activity patterns insects, whether shaded microclimates can moderate these responses. We investigated the impacts a on diel profile insect activity, comparing effects across open, tree‐covered, hedged habitats. Using yellow pan traps, was monitored from 07:00 AM PM ten non‐consecutive days, including two during heatwave. Insect counts exhibited unimodal relationship with temperature. On open habitat significant (81.9%) reduction compared ‘non‐heatwave’ one before after Smaller, non‐significant reductions were observed tree‐covered (32.3%) (17.8%) rhythm non‐heatwave days approximated relationship, model‐estimated peaking around 03:00 PM; by contrast, bimodal profile, predicted highest morning evening. Such heatwave‐induced deformations patterns, modelled interactions between time day, all three types. findings suggest that markedly decrease levels, whilst shade‐providing vegetational features may reduce this effect, are affected landscape‐wide. As become more frequent, preservation trees hedges landscapes likely crucial support resilience wider ecosystem functioning.

Язык: Английский

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Habitat associations of day-flying Lepidoptera and their foodplants within nature reserves in Bedfordshire, UK

Journal of Insect Conservation, Год журнала: 2024, Номер 28(5), С. 891 - 908

Опубликована: Фев. 17, 2024

Abstract Species often associate with specific habitat characteristics, resulting in patchy distributions, whereby they only occupy a proportion of available habitat. Understanding which characteristics species require is valuable tool for informing conservation management. We investigated the associations eleven day-flying Lepidoptera larvae and their foodplants within calcareous grassland reserves Bedfordshire, UK, across two scales relevant to land managers target species: reserve (cardinal aspect, vegetation type) foodplant patch scale (foodplant height density). whether ecological traits (habitat specialism, as defined at national-scale, overwintering life stage) influenced strength associations. At scale, we found variation species, that overwinter non-adult stages having more restricted associations, indicating may be vulnerable environmental change. Associations were generally stronger type than can manipulated easily by managers. Seven had similar foodplants, implying management benefit will also larvae. However, remaining four different alternative approaches. associated could used inform effective fine-scale Implications insect conservation: Diverse imply topographic are supporting diverse assemblages butterflies foodplants.

Язык: Английский

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Conserving Lepidoptera in a changing world: a special issue on the ecology and conservation of butterflies and moths

Journal of Insect Conservation, Год журнала: 2024, Номер unknown

Опубликована: Сен. 21, 2024

Язык: Английский

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