How urbanization is driving pollinator diversity and pollination – A systematic review

Biological Conservation, Journal Year: 2019, Volume and Issue: 241, P. 108321 - 108321

Published: Nov. 28, 2019

Language: Английский

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Agriculturally dominated landscapes reduce bee phylogenetic diversity and pollination services

Science, Journal Year: 2019, Volume and Issue: 363(6424), P. 282 - 284

Published: Jan. 18, 2019

Land-use change threatens global biodiversity and may reshape the tree of life by favoring some lineages over others. Whether phylogenetic diversity loss compromises ecosystem service delivery remains unknown. We address this knowledge gap using extensive genomic, community, crop datasets to examine relationships among land use, pollinator structure, production. Pollinator communities in highly agricultural landscapes contain 230 million fewer years evolutionary history; was strongly associated with reduced yield quality. Our study links landscape-mediated changes structure natural disruption services. Measuring conservation success species counts alone fail protect functions full from which they are derived.

Language: Английский

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Supporting Bees in Cities: How Bees Are Influenced by Local and Landscape Features

Insects, Journal Year: 2021, Volume and Issue: 12(2), P. 128 - 128

Published: Feb. 2, 2021

Urbanization is a major anthropogenic driver of decline for ecologically and economically important taxa including bees. Despite their generally negative impact on pollinators, cities can display surprising degree biodiversity compared to other landscapes. The pollinating communities found within these environments, however, tend be filtered by interacting local landscape features that comprise the urban matrix. Landscape exert variable influence pollinators across taxa, which ultimately affects community composition in such way contributes functional trait homogenization reduced phylogenetic diversity. Although previous results are not easily generalizable, bees displaying characteristics as polylectic diet, cavity-nesting behavior, later emergence appear most abundant different examined cities. To preserve particularly vulnerable species, notably specialists have become underrepresented city communities, green spaces like parks gardens been potential refuges. Such scattered matrix vary pollinator resource availability. Therefore, ensuring optimized imperative. This review examines how affect addition ways manipulated promote greater abundance

Language: Английский

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Forests are critically important to global pollinator diversity and enhance pollination in adjacent crops

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2023, Volume and Issue: 98(4), P. 1118 - 1141

Published: March 6, 2023

ABSTRACT Although the importance of natural habitats to pollinator diversity is widely recognized, value forests pollinating insects has been largely overlooked in many parts world. In this review, we ( i ) establish global diversity, ii explore relationship between forest cover and mixed‐use landscapes, iii highlight contributions forest‐associated pollinators pollination adjacent crops. The literature shows unambiguously that native support a large number forest‐dependent species are thus critically important diversity. Many taxa require or benefit greatly from resources restricted forests, such as floral provided by plants (including wind‐pollinated trees), dead wood for nesting, tree resins, various non‐floral sugar sources (e.g. honeydew). landscape‐scale studies generally conclusion enhance findings often complicated spatial scale, focal taxa, landscape context, temporal type, disturbance history, external stressors. While some loss can be beneficial enhancing habitat complementarity, too much result near‐elimination species. There strong evidence multiple crop types substantially increase yields habitats, at least within foraging ranges involved. also suggests may have enhanced future given their role mitigating negative effects pesticides climate change. questions remain about amount configuration required promote services neighbouring habitats. However, it clear current body knowledge any effort preserve woody including protection individual trees, will help maintain critical they provide.

Language: Английский

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The effects of urbanization on pollinators and pollination: A meta‐analysis

Ecology Letters, Journal Year: 2023, Volume and Issue: 26(9), P. 1629 - 1642

Published: June 22, 2023

Urbanization is increasing worldwide, with major impacts on biodiversity, species interactions and ecosystem functioning. Pollination an function vital for terrestrial ecosystems food security; however, the processes underlying patterns of pollinator diversity services they provide in cities have seldom been quantified. Here, we perform a comprehensive meta-analysis 133 studies examining effects urbanization pollinators pollination. Our results confirm widespread negative richness abundance, Lepidoptera being most affected group. Furthermore, responses were found to be trait-specific, below-ground nesting solitary Hymenoptera, spring flyers more severely by urbanization. Meanwhile, promote non-native pollinators, which may exacerbate conservation risks native species. Surprisingly, despite diversity, pollination service measured as seed set enhanced non-tropical likely due abundant generalists managed therein. We emphasize that local flowering plants could mitigate diversity. Overall, demonstrate varying magnitudes multiple moderators urban help guide actions biodiversity sustainable future.

Language: Английский

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The State of Bee Monitoring in the United States: A Call to Refocus Away From Bowl Traps and Towards More Effective Methods

Annals of the Entomological Society of America, Journal Year: 2020, Volume and Issue: 113(5), P. 337 - 342

Published: April 28, 2020

Abstract Effective monitoring is necessary to provide robust detection of bee declines. In the United States and worldwide, bowl traps have been increasingly used monitor native bees purportedly detect However, a suite flaws that make them poorly equipped bees. We outline drawbacks traps, as well other passive sampling methods. emphasize current methods do not changes in abundance. then propose future approaches improve efforts, which include improving our understanding efficacy methods, novel molecular nest censusing, mark-recapture, focal plant taxa, range contractions. Overall, we hope highlight deficiencies state monitoring, with an aim stimulate research into existing promote meaningful data can declines without squandering limited resources.

Language: Английский

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Urbanization Shapes the Ecology and Evolution of Plant-Arthropod Herbivore Interactions

Frontiers in Ecology and Evolution, Journal Year: 2019, Volume and Issue: 7

Published: Aug. 16, 2019

Urbanization is quickly changing natural and agricultural landscapes, with consequences for the herbivorous arthropods dwelling in or near cities. Here, we review evidence effects of urbanization on ecology evolution plant-herbivore interactions. We first summarize how abiotic factors associated affect arthropods. Next, explore affects interactions, by considering urban environments may disrupt top-down bottom-up ecological processes that herbivory. Abiotic changes environment, such as heat island effect, have caused shifts phenology some Other areas, including water availability, pollution, habitat fragmentation, resulted to physiology, behavior, population abundance. Native species richness tends decline however, abundance appear be specific. These suggest could both adaptive non-adaptive their host plants environments. However, interactions dramatically altered if either are unable tolerate Thus, while can physiologically acclimate genetically adapt biotic cause many decline. conclude suggestions future research advance our understanding alters

Language: Английский

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Functional ecology of wild bees in cities: towards a better understanding of trait-urbanization relationships

Biodiversity and Conservation, Journal Year: 2020, Volume and Issue: 29(9-10), P. 2779 - 2801

Published: June 8, 2020

Abstract A functional ecological understanding of urban wild bee communities is growing importance especially in regard to biodiversity conservation, ecosystem service maintenance and effective conservation programmes. In this paper, we review summarize the published literature aiming inform future research investigations field ecology. Specifically, we: (1) which trait-based analyses have been carried out on bees cities thus far; (2) species traits considered; (3) evaluate any consistent trait–environment relationships (i.e. urbanization) across studies; (4) synthesize findings limitations recommendations. We reviewed 48 studies based a systematic Web Knowledge search. found trait characteristics for ‘nesting type’, ‘diet’, ‘body size’, ‘sociality’ ‘phenology’ studies. More than one third were descriptive majority located gardens temperate Europe North America, calling more from underrepresented geographic regions entire spectrum habitat types. Of these studies, only five analyzed diversity indices three applied statistics relate urbanization factors. Future should consider statistics, could incorporate networks examine network shifts gradients. Our suggests that lack generalizable information about yet, making recommendations challenging. Therefore, propose considers methodological develop comparable comprehensive how affects ecology link with specific measures.

Language: Английский

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Landscape and local site variables differentially influence pollinators and pollination services in urban agricultural sites

PLoS ONE, Journal Year: 2019, Volume and Issue: 14(2), P. e0212034 - e0212034

Published: Feb. 13, 2019

Urbanization has detrimental effects on biodiversity and ecosystem functioning, as agricultural semi-natural habitats are converted into landscapes dominated by built features. Urban sites a growing component of urban have potential to serve source conservation service provisioning in areas. In 19 sites, we investigated how surrounding land cover local site variables supported bees pollination services. We found the abundance differentially responded landscape scale depending body size nesting habit. Large-bodied bees, Bombus Apis species, were positively associated with increasing amounts impervious cover, while small-bodied soil Halictus species increased proportion flower area, variable, increased. Bee richness declined levels bee community composition changed along gradient cover. Pollination services, measured at each using sentinel cucumber plants, hardscape, To improve services our results suggest planning strategies should minimize large spatial scales managers focus locally incorporating floral resources, which increases food resources especially for smaller species. Local design coupled regional can advance success agriculture, benefiting creating opportunities pollinator landscapes.

Language: Английский

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Wild bees as winners and losers: Relative impacts of landscape composition, quality, and climate

Global Change Biology, Journal Year: 2021, Volume and Issue: 27(6), P. 1250 - 1265

Published: Jan. 12, 2021

Wild bees, like many other taxa, are threatened by land-use and climate change, which, in turn, jeopardizes pollination of crops wild plants. Understanding how factors interact is critical to predicting managing pollinator populations ensuring adequate services, but most studies have evaluated either or effects, not both. Furthermore, bee species incredibly variable, spanning an array behavioral, physiological, life-history traits that can increase decrease resilience change. Thus, there likely benefit, while others suffer, from changing land use, few documented taxon-specific trends. To address these knowledge gaps, we analyzed a long-term dataset occurrences Maryland, Delaware, Washington DC, USA, examining different genera functional groups respond landscape composition, quality, factors. Despite large body literature documenting effects on this study, emerged as the main drivers wild-bee abundance richness. For communities spring summer/fall, temperature precipitation were more important predictors than topography. However, relationships varied substantially between groups. In Northeast past trends future predictions show with warmer winters, intense winter spring, longer growing seasons higher maximum temperatures. almost all our analyses, conditions associated lower bees. Wild-bee richness results mixed, including neutral positive predicted patterns. region undoubtedly broadly, poses significant threat communities.

Language: Английский

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