The effects of urbanisation on ecological interactions

Current Opinion in Insect Science, Год журнала: 2022, Номер 52, С. 100922 - 100922

Опубликована: Апрель 28, 2022

Cities are expanding worldwide and urbanisation is considered a global threat to biodiversity. Urban ecology has provided important insights on how urban environmental changes might affect individuals, populations, species; however, we know little about the ecological impacts of alter species interactions. Species interactions backbone communities play crucial role in population community dynamics generation, maintenance structure Here, I review studies identify key mechanistic pathways through which processes could antagonistic mutualistic among species. More specifically, focus insect predation, parasitoidism herbivory, competition, host-pathogen interactions, pollination. furthermore knowledge gaps that require additional research attention suggest future directions may help shed light mechanisms will thus aid conservation management cities.

Язык: Английский

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Acute toxicity and bioaccumulation of common urban metals in Bombus impatiens life stages

The Science of The Total Environment, Год журнала: 2024, Номер 915, С. 169997 - 169997

Опубликована: Янв. 11, 2024

Metal contamination is ubiquitous in urban areas and represents a risk to arthropod species. Bees are exposed metals while foraging within contaminated landscapes from multiple sources. Eliminating the of bee exposure complex, requires an understanding how bees become contaminated, accumulate bodies, this influences their health. We selected Bombus impatiens, common eastern bumble bee, as our focal species because it most frequently encountered United States greenspaces. The aims study were quantify lethal concentration limit (LC

Язык: Английский

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More losses than gains in ground-nesting bees over 60 years of urbanization

Urban Ecosystems, Год журнала: 2020, Номер 24(2), С. 233 - 242

Опубликована: Июль 6, 2020

Язык: Английский

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Urban native vegetation remnants support more diverse native bee communities than residential gardens in Australia's southwest biodiversity hotspot

Biological Conservation, Год журнала: 2021, Номер 265, С. 109408 - 109408

Опубликована: Дек. 21, 2021

Язык: Английский

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Reproductive patterns of solitary cavity-nesting bees responsive to both local and landscape factors

Urban Ecosystems, Год журнала: 2021, Номер 24(6), С. 1271 - 1280

Опубликована: Фев. 22, 2021

Язык: Английский

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Urban intensity gradients shape community structure, life‐history traits and performance in a multitrophic system

Insect Conservation and Diversity, Год журнала: 2024, Номер 17(2), С. 243 - 258

Опубликована: Март 1, 2024

Abstract Urban ecosystems are formed by pronounced socio‐ecological gradients, which distinct from other and can simultaneously filter promote taxa, ultimately affecting their interactions. However, the strength of effect filtering facilitation across different trophic levels could vary among biotic abiotic factors. Here, we investigate effects habitat amount, temperature host‐enemy interactions in shaping communities cavity‐nesting bees wasps natural enemies. We installed trap‐nests 80 sites distributed along urban intensity gradients five European cities (Antwerp, Paris, Poznan, Tartu Zurich). quantified species richness abundance hosts enemies, as well two performance traits (survival parasitism) life‐history (sex ratio number offspring per nest for hosts). analysed importance variables using generalised linear models multi‐model inference. found that amount was main driver multiple host responses, with larger amounts resulting higher a probability survival brood cells hosts. Local resources proxies shaped both indicate uses existing vegetation between wasps. Temperature had minor role Biotic were enemy community structure, enemies being strongly affected availability, is, direct density‐dependence Overall, our study highlights food webs, on through responses subsequent consequences As prepare to tackle global change, strategies make it possible maintain mitigate overheating emerge key adaptation biodiversity conservation.

Язык: Английский

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Designing biodiverse urban gardens: ecological planning through computational techniques for pollinator promotion

Urban Ecosystems, Год журнала: 2025, Номер 28(2)

Опубликована: Фев. 18, 2025

Язык: Английский

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Host associations of Brazilian Darwin wasps: current knowledge and the IchHostBR dataset

The Science of Nature, Год журнала: 2025, Номер 112(2)

Опубликована: Фев. 27, 2025

Язык: Английский

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Checking in at bee hotels: trap-nesting occupancy and fitness of cavity-nesting bees in an urbanised biodiversity hotspot

Urban Ecosystems, Год журнала: 2023, Номер 26(5), С. 1381 - 1395

Опубликована: Июнь 7, 2023

Abstract With urbanisation leading to loss of nesting resources, and increasing public interest in helping bees, bee hotels (trap-nests) are becoming popularised. However, their success is relatively understudied. The influence habitat type determining occupancy emergence also poorly known. Over two years across 7 bushland remnant residential garden sites, trap-nests were installed completed nests collected monthly over spring-summer. Bees appeared take a month find the trap-nests, irrespective they installed. A small percentage (13% 6% years) tubes occupied, but this was within range other trap-nesting studies. Smaller 4 mm diameter had higher rate than 10 tubes. An impressive number − 24 species – occupied trap-nests. Representation however dominated by five species. composition (species relative abundances) cavity-nesting bees differed greatly between those using compared with observed field. Bushland remnants tended have more male body size emerged larger habitat. Unexpectedly native total flower diversity reduced hotel occupancy, whereas parameters positively fitness. Overall installing can provide additional resources for urbanised areas, providing high proportions flora vicinity should enhance fitness them.

Язык: Английский

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Pollen analysis of cavity‐nesting bees (Hymenoptera: Anthophila) and their food webs in a city

Ecological Entomology, Год журнала: 2021, Номер 47(2), С. 146 - 157

Опубликована: Окт. 15, 2021

1. Urban areas can host speciose bee communities due partially to the species‐rich combination of both native and alien plant species found in these landscapes. However, intensively‐constructed zones, it could be expected record a low diversity used by bees because high proportion paved surfaces areas. 2. We investigated influence urbanisation on cavity‐nesting bee‐plant community interaction network structures medium‐sized city. The floral nesting females cell provisioning was retrieved from pollen content obtained trap‐nests collected 11 sites located an urban landscape gradient. 3. Eighty types belonging 20 families were identified 155 samples analysed. At least seven all sampling points. analysis revealed positive green type richness, although null model also selected as best model. Likewise, metrics but connectance not influenced any variables. 4. Our findings demonstrated that notwithstanding richness similar. networks modular, asymmetric, highly specialised. adaptation present environments presence explore diverse flora may indicate local variation had little their interactions with plants.

Язык: Английский

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