Woodland and floral richness boost bumble bee density in cranberry resource pulse landscapes

Pfeiffer, Vera W; Silbernagel, Janet; Guédot, Christelle; Zalapa, Juan

doi:10.1007/s10980-019-00810-1

Cited by 19 publications

(21 citation statements)

References 58 publications

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“…Our nding that Bombus diversity was highest in agricultural landscapes differs from other studies that suggest diversity is negatively impacted by high proportions of agriculture, particularly monocultures, due to a lack of diverse landscapes, reduced availability of oral resources, increased use of agrochemicals, and frequent soil disturbances (e.g., tilling, seeding, and harvest practices) restricting nesting locations (Vanbergen et al 2013;Pfeiffer et al 2019;Grocock and Evenden 2020). This may be due to our surveyed corn and alfalfa elds being relatively small (mean of 22 acres) and in close proximity to other crop types (e.g., corn, alfalfa, wheat, and barley) in comparison to other regions of the U.S. where agricultural elds are more expansive (Plourde et al 2013).…”

Section: Discussioncontrasting

confidence: 82%

Land-Use and Climate Drive Shifts in Bombus Assemblage Composition

Christman

Spears

Strange

et al. 2021

Preprint

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ContextPollinators play pivotal roles in maintaining agricultural and natural plant communities, yet some bee populations are declining. The conversion of agricultural and semi-natural lands for urban use has reduced bee abundance and diversity. Meanwhile, climate change has affected bee distributions and led to disruption of plant-pollinator synchrony, impacting ecosystem processes. However, how these factors co-occur to influence bee assemblages is poorly understood.ObjectivesWe linked differences in bumble bee (Bombus) diversity to landscape composition and climate in agroecosystems in order to understand their co-occurring effects.MethodsWe evaluated Bombus assemblages in relation to the proportion of agricultural, semi-natural, and urban landscapes and interannual variation in temperature, precipitation, and relative humidity in Utah agroecosystems from 2014 to 2018.ResultsBombus species richness and diversity was highest in agricultural landscapes characterized by low temperatures and high relative humidity during the growing season, and lowest in urban areas with high temperatures and low relative humidity. Ongoing and future urbanization and climate change may therefore lead to reduced Bombus diversity in Utah. Although some historically uncommon species, such as B. pensylvanicus, may thrive under future land-use and climate scenarios, others (e.g., B. sylvicola, B. californicus, and B. occidentalis) are at increased risk of extirpation due to loss of suitable habitat.ConclusionsContinually monitoring Bombus populations will help document shifts in assemblages and potential consequential impacts to ecosystem services. These findings emphasize that management strategies moving forward should consider the effect of co-occurring factors as opposed to single factors in order to foster future resiliency of Bombus populations.

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Section: Discussioncontrasting

confidence: 82%

Land-Use and Climate Drive Shifts in Bombus Assemblage Composition

Christman

Spears

Strange

et al. 2021

Preprint

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“…Three articles in this special section (Jones et al 2019;Pfeiffer et al 2019;Miljanic et al 2018) moved beyond tests of landscape composition, to also examine the effects of landscape configuration on pollinators. This is of critical importance, because if such configuration effects are revealed, it suggests a path toward planning agricultural and natural landscapes to minimize the effect of pollinator habitat loss via changes to landscape pattern (Hadley and Betts 2012).…”

Section: About This Special Issuementioning

confidence: 99%

“…This is of critical importance, because if such configuration effects are revealed, it suggests a path toward planning agricultural and natural landscapes to minimize the effect of pollinator habitat loss via changes to landscape pattern (Hadley and Betts 2012). Pfeiffer et al (2019) tested for the independent effects of landscape configuration on bumble bee colony density and representation. Bumble bees are critical pollinators in the cranberry farming system examined.…”

Section: About This Special Issuementioning

confidence: 99%

The landscape ecology of pollination

2019

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“…Gene flow can be analyzed at different temporal depths. First-generation migrants may indicate short-term movement during the most recent season including the direction of exchange [62,63], while genetic assignment tests are indicative of movements in the recent past [64,65]. Genetic differentiation fst, considered a genetic measure indicative of historic processes (i.e., >20 generations), can be used to identify movement paths at greater temporal depths [66].…”

Section: Data Space and Time Scale For Movementmentioning

confidence: 99%

“…Applied to a connectivity assessment, the information drawn from such clustering algorithms indicates how the genetic composition may vary across a landscape [68]. In addition, many genetic studies normally account for more detailed population metrics such as genetic diversity or population size [63,69,70].…”

Section: Data Space and Time Scale For Movementmentioning

confidence: 99%

Contribution of Connectivity Assessments to Green Infrastructure (GI)

Bolliger

Silbernagel

2020

IJGI

Self Cite

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A major goal of green infrastructure (GI) is to provide functional networks of habitats and ecosystems to maintain biodiversity long-term, while at the same time optimizing landscape and ecosystem functions and services to meet human needs. Traditionally, connectivity studies are informed by movement ecology with species-specific attributes of the type and timing of movement (e.g., dispersal, foraging, mating) and movement distances, while spatial environmental data help delineate movement pathways across landscapes. To date, a range of methods and approaches are available that (a) are relevant across any organism and movement type independent of time and space scales, (b) are ready-to-use as standalone freeware or custom GIS implementation, and (c) produce appealing visual outputs that facilitate communication with land managers. However, to enhance the robustness of connectivity assessments and ensure that current trends in connectivity modeling contribute to GI with their full potential, common denominators on which to ground planning and design strategies are required. Likewise, comparable, repeatable connectivity assessments will be needed to put results of these scientific tools into practice for multi-functional GI plans and implementation. In this paper, we discuss use and limitations of state-of-the-art connectivity methods in contributing to GI implementation.

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Woodland and floral richness boost bumble bee density in cranberry resource pulse landscapes

Cited by 19 publications

References 58 publications

Land-Use and Climate Drive Shifts in Bombus Assemblage Composition

Land-Use and Climate Drive Shifts in Bombus Assemblage Composition

The landscape ecology of pollination

Contribution of Connectivity Assessments to Green Infrastructure (GI)

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