Landscape composition influences pollinators and pollination services in perennial biofuel plantings

Bennett, Ashley B.; Isaacs, Rufus

doi:10.1016/j.agee.2014.04.016

Cited by 73 publications

(45 citation statements)

References 54 publications

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“…Research investigating bee communities within non-pollinator dependent crops is rare; however recent studies in corn, soybean, biofuel crops (corn, switchgrass, mixed prairie species) [11,12,13,101,102], and now potato fields (this study) are improving understanding of bee diversity in non-pollinator dependent crops. Bee abundance and richness is typically lower in intensive crops relative to more diversified habitats [101], however a substantial number of bee species remain in these landscapes.…”

Section: Discussionmentioning

confidence: 99%

“…Some stem-nesting species such as Ceratina and Hylaeus remain in low abundance relative to semi-natural areas, although they can be abundant in switchgrass biofuel crops [101]. The bulk of individuals are hyper-generalist foragers that visit flowers across many plant families, including Melissodes bimaculatus , Agapostemon virescens , and Lasioglossum spp., which dominate the few studies identifying bee species in non-pollinator-dependent crop systems [11,12,101,102]. Melissodes bimaculatus , honey bees, and halictid bees, in particular Lasioglossum , are known to use floral resources such as corn and grass pollen [103,104] that are typically avoided by other bees in the region.…”

Section: Discussionmentioning

confidence: 99%

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Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Buchanan

Gibbs

Komondy

et al. 2017

Insects

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We conducted a bee survey in neonicotinoid-treated commercial potato fields using bowl and vane traps in the 2016 growing season. Traps were placed outside the fields, at the field edges, and 10 and 30 m into the fields. We collected 756 bees representing 58 species, with Lasioglossum spp. comprising 73% of all captured bees. We found seven Bombus spp., of which B. impatiens was the only known visitor of potato flowers in our region. The majority of the bees (68%) were collected at the field edges and in the field margins. Blue vane traps caught almost four-times as many bees and collected 30% more species compared to bowl traps. Bee communities did not differ across trap locations but they were different among trap types. We tested B. impatiens visitation to neonicotinoid treated and untreated potato flowers in field enclosures. The amount of time bees spent at flowers and the duration of visits were not significantly different between the two treatments. Our results demonstrate that a diverse assemblage of bees is associated with an agroecosystem dominated by potatoes despite the apparent lack of pollinator resources provided by the crop. We found no difference in B. impatiens foraging behavior on neonicotinoid-treated compared to untreated plants.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Buchanan

Gibbs

Komondy

et al. 2017

Insects

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“…; Senapathi et al . ) or regional studies from the US (Jha & Kremen ; Bennett & Isaacs ; Connelly, Poveda & Loeb ). While the studies above explore spatial context from an anthropogenic viewpoint (i.e.…”

Section: Assessing Landscape‐level Impacts On Pollinatorsmentioning

confidence: 99%

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

et al. 2016

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Summary1. 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 knowledge and highlight initiatives that will help develop and improve strategies for pollinator conservation. 2. Human-dominated landscapes (such as arable land and urban environments) can have detrimental impacts on pollinator communities but these negative effects can be ameliorated by proximity to semi-natural habitat and habitat corridors. There is also evidence to suggest that increased landscape heterogeneity and landscape configuration can play an important role in the maintenance of diverse pollinator communities. 3. Landscape characteristics have direct impacts on pollinator communities, but can also influence abundance and richness through interaction with other drivers such as changing climate or increased chemical inputs in land management. 4. The majority of existing literature focuses on specific hymenopteran groups, but there is a lack of information on the impact of landscape changes on non-bee taxa. Research is also needed on the effectiveness of management interventions for pollinators and multiple year observations are required for both urban and rural initiatives. 5. Current policies and monitoring schemes could contribute data that will plug gaps in knowledge, thus enabling greater understanding of relationships between landscapes and pollinator populations. This would in turn help design mitigation and adaptation strategies for pollinator conservation.

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“…Nevertheless, evidence about the decline of insect pollinators, have accumulated worldwide during the past three decades (Kosior et al 2007;Grixti et al 2009;Carvalheiro et al 2013;Nieto et al 2015). Multiple causes are involved, but one of the primary factors concerns modifications of the landscape matrix (Hendrickx et al 2007;Goulson et al 2010;Bennett and Isaacs 2014), especially destruction, fragmentation and degradation of habitats (Rathcke and Jules 1993;Fahrig 2003;Harris and Johnson 2004). These modifications induce shifts or decreases in the quantity and quality of the floral resources available for pollinators in terms of the abundance of flowering plant species and their relative quantity and composition of nectar and pollen rewards (Biesmeijer et al 2006;Kleijn and Raemakers 2008).…”

Section: Introductionmentioning

confidence: 98%

Early spring floral foraging resources for pollinators in wet heathlands in Belgium

et al. 2015

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In temperate regions, foraging resources for pollinating insects are particularly important in early spring, especially for social insects like bumblebees that are initiating colonies. Heathlands, protected open habitats under EU law, provide floral resources (pollen and nectar) for a range of pollinating insects. In early spring, in Belgian heathlands, only two floral resources are available: willows Salix spp. (Salicaceae) and bilberry Vaccinium myrtillus (Ericaceae). Our objective was to assess whether these two plant species provide quantitative and qualitative resources during early spring. We examined the springtime activity of flower visitors on both S. x multinervis and V. myrtillus flowers in relation to sugar concentration and composition in nectar as well as composition of polypeptides and amino acids in pollen. The chemical composition of pollen differed significantly between the two plant species. Salix x multinervis offered pollen with higher polypeptide and essential amino acid contents than V. myrtillus. However, nectar quantities of V. myrtillus flowers were relatively high compared to S. x multinervis. During the overlapping flowering period of the two plant species, flower visitors seemed to favor high quality and easily accessible pollen of S. x multinervis species and visited V. myrtillus mainly for nectar resources.

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Landscape composition influences pollinators and pollination services in perennial biofuel plantings

Cited by 73 publications

References 54 publications

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

Bee Community of Commercial Potato Fields in Michigan and Bombus impatiens Visitation to Neonicotinoid-Treated Potato Plants

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

Early spring floral foraging resources for pollinators in wet heathlands in Belgium

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