Mitigating the Effects of Habitat Loss on Solitary Bees in Agricultural Ecosystems

Agriculture, Journal Year: 2020, Volume and Issue: 10(4), P. 115 - 115

Published: April 5, 2020

Solitary bees and other wild pollinators provide an important ecosystem service which can benefit both the agricultural economy sustainability of many native ecosystems. Many solitary bees, however, are experiencing decreases in their populations ranges, resulting overall loss pollinator species richness areas. Several interacting factors have been implicated this decline, including increased pesticide use, climate change, pathogens, but habitat remains one primary drivers. The widespread conversion natural habitats into landscapes has decreased availability adequate nesting sites floral diversity for bee species. Large monocultures with intensive production systems often cannot support (particularly short foraging ranges) necessary to ensure pollination animal-pollinated crops. Diversifying through incorporation wildflower plantings, as well preservation remaining habitats, may offer a solution, it shown increase abundance nearby In review article, we discuss various effects on different ways mitigate such order conserve landscapes.

Language: Английский

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The managed-to-invasive species continuum in social and solitary bees and impacts on native bee conservation

Current Opinion in Insect Science, Journal Year: 2021, Volume and Issue: 46, P. 43 - 49

Published: Feb. 2, 2021

Language: Английский

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Biodiversity in residential gardens: a review of the evidence base

Biodiversity and Conservation, Journal Year: 2023, Volume and Issue: 32(13), P. 4155 - 4179

Published: Aug. 19, 2023

Abstract Residential gardens are a principal component of urban green infrastructure throughout the world and their potential positive contributions to biodiversity increasingly recognised. But characteristics reflect needs, values interests individual households. The present review summarises evidence from studies garden published in scientific literature, describes major themes identifies important knowledge gaps. A search Web Science database identified 408 articles on residential (1981–2022), with numbers increasing over time strong bias towards Europe (32.1%) North America (23.8%). Plants invertebrates were most frequently studied, species diversity was often correlated size habitat complexity. Botanic composition vegetation cover positively associated abundance fauna. Non-native plants contributed substantially plant some indicated benefits other linked functional attributes. Intensive management including frequent lawn mowing, fertiliser pesticide application, more formal, ‘neater’ appearance reduced biodiversity. However, results varied amongst studies, for example relation impacts mowing frequency diversity. There general paucity experimental different regimes few replicated tests recommended ‘wildlife-friendly practices’. Several importance connectivity infra-structure dispersal ecosystem functioning. Emerging threats include replacement by development, conversion hard surfaces declining plot sizes. Managing these challenges maximising value requires greater engagement policymakers planners, partnerships between public bodies private households co-ordinate local initiatives.

Language: Английский

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Interest exceeds understanding in public support of bee conservation

Frontiers in Ecology and the Environment, Journal Year: 2017, Volume and Issue: 15(8), P. 460 - 466

Published: Sept. 5, 2017

Recent analyses suggesting that certain populations of bees may be declining have led to a variety conservation efforts, many which rely on public support and participation. However, little is known about the public's knowledge bee diversity. We carried out survey measure understanding diversity found although 99% respondents believed are critical or important, only 14% were able guess within 1000 actual number species in US . Furthermore, when reviewing selection photographs depicting various insects, unable discern from non‐bees. Our findings show even as scientific research has rapidly expanded, remains largely uninformed subject, especially with regard wealth In light fact efforts require substantial support, any programs aimed at stopping mitigating population declines will need include outreach education measures.

Language: Английский

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Building height matters: nesting activity of bees and wasps on vegetated roofs

Israel Journal of Ecology and Evolution, Journal Year: 2015, Volume and Issue: 62(1-2), P. 88 - 96

Published: June 16, 2015

Vegetated, “green” infrastructure, including terraces, balconies, and vegetated roofs walls are increasingly common in urban landscapes, elevating habitat into novel contexts above ground. Highly mobile species, like bees wasps, often seen foraging on green but whether nesting opportunities facilitated is not known. Cavity-nesting wasps that provision brood human-made trap nests were monitored over three years 29 non-vegetated Toronto, Canada. The study identified 27 species rooftops found building height was negatively correlated with the abundance of cells provisioned nests, positively number unfinished nests. A decline space area within a 600 m radius around each rooftop resulted decreasing richness abundance. Although introduced bee, Megachile rotundata (Fabricius) occupied more sites than any other bee or wasp (27.6%) most abundant amounting to half (48.9%) all reared, native 73% reared. spider-collecting Trypoxylon collinum Smith (11.4%), aphid-collecting Psenulus pallipes (Panzer) occurred at (24.1%). For pollination pest controlling services they provide, should be considered design roofs. Evidence here suggests surrounding ground level impact diversity Efforts supporting their populations using target low- mid-rise buildings (<5 levels).

Language: Английский

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Reflections on, and visions for, the changing field of pollination ecology

Ecology Letters, Journal Year: 2018, Volume and Issue: 21(8), P. 1282 - 1295

Published: July 3, 2018

Abstract Since the launch of Ecology Letters in 1998, field Pollination has changed considerably its focus. In this review, we discuss major discoveries across past two decades. We quantitatively synthesise frequency by which different concepts and topics appeared peer‐reviewed literature, as well connections between these topics. then look forward to identify pressing research frontiers opportunities for additional integration future. find that there been a shift towards viewing plant–pollinator interactions networks understanding how global drivers influence plants, pollinators ecosystem service pollination. Future include moving macroecological view interactions, ecological intensification urbanisation will pollination, considering other such plant–microbe–pollinator networks, causes consequences extinctions. is poised advance our basic evolutionary factors shape plant–animal create applied knowledge informs conservation decision making.

Language: Английский

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Decline of six native mason bee species following the arrival of an exotic congener

Scientific Reports, Journal Year: 2020, Volume and Issue: 10(1)

Published: Oct. 30, 2020

Abstract A potential driver of pollinator declines that has been hypothesized but seldom documented is the introduction exotic species. International trade often involves movement many insect pollinators, especially bees, beyond their natural range. For agricultural purposes or by inadvertent cargo shipment, bee species successfully establishing in new ranges could compete with native bees for food and nesting resources. In Mid-Atlantic United States, two Asian mason ( Osmia taurus O. cornifrons ) have become recently established. Using pan-trap records from US, we examined catch abundance six over span fifteen years (2003–2017) to estimate changes. All showed substantial annual declines, resulting cumulative losses ranging 76–91% since 2003. Exotic fared much better, stable increasing 800% We characterize areas niche overlap may lead competition between , discuss how disease spillover enemy release this system result patterns document.

Language: Английский

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Beyond the Decline of Wild Bees: Optimizing Conservation Measures and Bringing Together the Actors

Insects, Journal Year: 2020, Volume and Issue: 11(9), P. 649 - 649

Published: Sept. 22, 2020

Wild bees are facing a global decline mostly induced by numerous human factors for the last decades. In parallel, public interest their conservation increased considerably, namely through scientific studies relayed in media. spite of this broad interest, lack knowledge and understanding subject is blatant reveals gap between awareness understanding. While extensively studied, information on measures often scattered literature. We now beyond precautionary principle experts calling effective actions to promote wild bee diversity enhancement environment quality. review, we draw general up-to-date assessment methods, as well efficiency current projects that try fill gaps optimize measures. Targeting bees, focused our attention (i) protection restoration habitats, (ii) anthropogenic (iii) implementation made tools, (iv) how deal with invasive alien species, finally (v) communicate efficiently accurately. This review can be considered needed catalyst implement concrete qualitative conversation bees.

Language: Английский

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Bee hotels host a high abundance of exotic bees in an urban context

Acta Oecologica, Journal Year: 2020, Volume and Issue: 105, P. 103556 - 103556

Published: May 1, 2020

Language: Английский

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Multi‐scalar drivers of biodiversity: local management mediates wild bee community response to regional urbanization

Ecological Applications, Journal Year: 2019, Volume and Issue: 29(3)

Published: March 20, 2019

Abstract It is critical to understand the specific drivers of biodiversity across multiple spatial scales, especially within rapidly urbanizing areas, given distinct management recommendations that may result at each scale. However, patterns and interactions between are often only measured modeled a single In this study, we assessed bee community composition three time periods in 20 grassland agriculture sites located two major metroplexes. We examined how local environmental variables surrounding landscape impact abundance, richness, evenness, including comparisons groups with different nesting strategies body sizes. collected nearly 13,000 specimens identified 172 species. found levels regional land use differentially impacted abundance diversity depending on habitat management. Specifically, sites, richness was greater increasing landscape‐level seminatural habitat, while similar landscapes regardless cover. Bee evenness both site types declined heterogeneity, due an increase rare species but not agricultural further indicating driven by interaction quality composition. additionally supported higher abundances, small‐bodied below‐ground bees, abundances aboveground large‐bodied Increased bare ground were significantly related metrics diversity, belowground richness. Local floral also increases overall as well small bees. Overall, suggest managers can support conserving areas soil promoting native latter highly urban spaces. Our results provide first documentation significant impacting insect communities systems, conservation practices depend critically scales.

Language: Английский

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