The conservation value of urban green space habitats for Australian native bee communities

Biological Conservation, Journal Year: 2015, Volume and Issue: 187, P. 240 - 248

Published: May 27, 2015

Language: Английский

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Landscape impacts on pollinator communities in temperate systems: evidence and knowledge gaps

Functional Ecology, Journal Year: 2016, Volume and Issue: 31(1), P. 26 - 37

Published: Nov. 18, 2016

Summary This review assesses current knowledge about the interplay between landscape and pollinator communities. Our primary aim is to provide an evidence base, identify key gaps in highlight initiatives that will help develop improve strategies for conservation. Human‐dominated landscapes (such as arable land urban environments) can have detrimental impacts on communities but these negative effects be ameliorated by proximity semi‐natural habitat corridors. There also suggest increased heterogeneity configuration play important role maintenance of diverse Landscape characteristics direct communities, influence abundance richness through interaction with other drivers such changing climate or chemical inputs management. The majority existing literature focuses specific hymenopteran groups, there a lack information impact changes non‐bee taxa. Research needed effectiveness management interventions pollinators multiple year observations are required both rural initiatives. Current policies monitoring schemes could contribute data plug knowledge, thus enabling greater understanding relationships populations. would turn design mitigation adaptation A lay summary available this article.

Language: Английский

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Opportunities and threats for pollinator conservation in global towns and cities

Current Opinion in Insect Science, Journal Year: 2020, Volume and Issue: 38, P. 63 - 71

Published: Jan. 28, 2020

Urban expansion is considered to be one of the main threats global biodiversity yet some pollinator groups, particularly bees, can do well in urban areas. Recent studies indicate that both local and landscape-level drivers influence communities, with floral resources amount impervious cover landscape affecting abundance, richness community composition. intensification, chemicals, climate change increased honey bee colony densities all negatively affect pollinators. Maintaining good areas habitat for pollinators, such as those found allotments (community gardens) domestic gardens, improving management approaches greenspace highly urbanised (e.g. by increasing nesting sites) will benefit conservation. Opportunities conservation exist via multiple stakeholders including policymakers, residents, planners architects.

Language: Английский

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A global review of determinants of native bee assemblages in urbanised landscapes

Insect Conservation and Diversity, Journal Year: 2022, Volume and Issue: 15(4), P. 385 - 405

Published: Feb. 10, 2022

Abstract Loss of natural habitat through land‐use change threatens bees. Urbanisation is a major, increasing form, loss, and novel, pervasive form disturbance known to impact bee diversity abundance in variety often inconsistent ways. We conducted comprehensive, semi‐quantitative review, involving 215 studies, on responses bees urban landscapes, local landscape variables proposed influence diversity. Urban areas tend be favourable for compared with agricultural ones, but areas, host more abundant populations yet fewer species. Factors associated including changes foraging resources nesting substrate types availability, contribute abundance, species richness, composition native assemblages. However, the conclusions studies vary greatly because difference ecological traits bees, habitats surveyed, geographic region, as well noise data resulting from inconsistencies sampling methodology, definitions ‘urban’ ‘natural’. Identifying what biotic abiotic features cityscapes promote or threaten persistence critical. provide comprehensive evaluation how (both aggregate according their guild) have responded environment, identify gaps knowledge ecology, make recommendations advance our understanding environments conservation diverse communities.

Language: Английский

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Planting gardens to support insect pollinators

Conservation Biology, Journal Year: 2018, Volume and Issue: 34(1), P. 15 - 25

Published: Dec. 29, 2018

Abstract Global insect pollinator declines have prompted habitat restoration efforts, including pollinator‐friendly gardening. Gardens can provide nectar and pollen for adult insects offer reproductive resources, such as nesting sites caterpillar host plants. We conducted a review meta‐analysis to examine how decisions made by gardeners on plant selection garden maintenance influence survival, abundance, diversity. also considered characteristics of surrounding landscapes the impacts natural enemies. Our results indicated that pollinators responded positively high species diversity, woody vegetation, size, sun exposure negatively separation habitats from sites. Within‐garden features more strongly influenced than landscape factors. Growing interest in gardening highlights need better understand gardens contribute conservation some enhance attractiveness usefulness pollinators. Further studies examining reproduction, resource acquisition, enemies comparing with other efforts are needed increase value human‐made

Language: Английский

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Habitat restoration benefits wild bees: A meta‐analysis

Journal of Applied Ecology, Journal Year: 2017, Volume and Issue: 55(2), P. 582 - 590

Published: Sept. 12, 2017

Abstract Pollinator conservation is of increasing interest in the light managed honeybee ( Apis mellifera ) declines, and declines some species wild bees. Much work has gone into understanding effects habitat enhancements agricultural systems on bee abundance, richness pollination services. However, ecological restoration targeting “natural” endpoints (e.g. restoring former fields to historic vegetation types or improving degraded natural lands) bees have received relatively little attention, despite their potential importance for countering loss. We conducted a meta‐analysis evaluate abundance richness, focusing unmanaged communities lands restored increase availability quality. Specifically, we assessed and/or across studies comparing vs. unrestored treatments investigating specific techniques, such as burning, grazing, invasive plant removal seeding. analysed 28 that met our selection criteria: these represented 11 7 techniques. Nearly all restorations associated with were performed without explicit consideration needs other pollinators. The majority targeted community goals, which could potentially ancillary benefits Restoration had overall positive multiple types. Specific actions, tested independently, also tended abundance. Synthesis applications . found strong evidence advances conservation. This important given loss recognized leading factor pollinator decline. responses land management are rarely evaluated non‐agricultural settings so support may be an underappreciated benefit botanically focused management. Future projects explicitly consider more effective at providing nesting, foraging resources. encourage managers design mind.

Language: Английский

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Use of human-made nesting structures by wild bees in an urban environment

Journal of Insect Conservation, Journal Year: 2016, Volume and Issue: 20(2), P. 239 - 253

Published: March 16, 2016

Most bees display an array of strategies for building their nests, and the availability nesting resources plays a significant role in organizing bee communities. Although urbanization can cause local species extinction, many persist urbanized areas. We studied response community to winter-installed human-made structures (bee hotels soil squares, i.e. 0.5 m deep holes filled with soil) sites. investigated colonization pattern these over two consecutive years evaluate effect age type substrates (e.g. logs, stems) provided on colonization. Overall, we collected 54 species. In hotels, gregarious species, Osmia bicornis L. O. cornuta Latr. dominated (over 87 % data). Over 2 years, squares did not affect level same was true respect 'other species'. However, occurred less often raised fewer descendants 1-year old than new ones. Bee affected by texture and, among above-ground bees, only showed preference some substrates, namely Acer sp. Catalpa context increasing declining populations, much attention has focused upon improving floral available while little effort been paid resources. Our results indicate that, addition availability, should be taken into account development urban green areas promote diverse community.

Language: Английский

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Trap nests for bees and wasps to analyse trophic interactions in changing environments—A systematic overview and user guide

Methods in Ecology and Evolution, Journal Year: 2018, Volume and Issue: 9(11), P. 2226 - 2239

Published: July 26, 2018

Abstract Trap nests are artificially made nesting resources for solitary cavity‐nesting bees and wasps allow easy quantification of multiple trophic interactions between bees, wasps, their food objects natural enemies. We synthesized all trap nest studies available in the ISI Web Science ™ to provide a comprehensive overview research identify common practical challenges promising future directions. have been used on continents across climate zones publication numbers increased exponentially since first 1950s. Originally detailed exploratory history observations, now also an established method hypothesis‐driven ecology assess environmental changes. potential monitoring by assessing interaction networks groups involved. While pollen collection or prey hunting has often addressed, with enemies were included almost half publications, surprisingly few quantified response anthropogenic By simultaneously revealing multitude interactions, broaden our understanding how species influenced manifold changes, which pressing topics ecological research. To foster use studies, we offer guidance solutions.

Language: Английский

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Cavity-nest boxes for solitary bees: a century of design and research

Apidologie, Journal Year: 2016, Volume and Issue: 48(3), P. 311 - 327

Published: Oct. 31, 2016

Language: Английский

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From potential to practical: conserving bees in urban public green spaces

Frontiers in Ecology and the Environment, Journal Year: 2019, Volume and Issue: 17(3), P. 167 - 175

Published: March 4, 2019

The documentation of many rare or declining bee species in urban green spaces has led to a recent focus on cities as conservation targets. However, for pollinator succeed long term, we argue that the opinions and values local community members must be prioritized more explicitly. In our experience, is difficult achieve when aesthetic safety concerns residents are not reconciled with goals habitat designs practitioners. Similarly, from ecology perspective, questions concerning optimal design management practices habitats remain unresolved. It hope frank discussion challenges associated public will inspire thoughtful consideration how best implement new initiatives cities.

Language: Английский

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