Results 71 to 80 of about 89,176 (260)

Proximity to wind turbines altered plant–pollinator dynamics in prairie and sagebrush ecosystems in Wyoming, USA

open access: yesNordic Journal of Botany, EarlyView.
Wind turbines influence several abiotic conditions in the environments they are sited in and may influence the behavior and movement of insect pollinators. It is unknown how operating turbines influence plant–pollinator interactions. To investigate if pollination dynamics could be affected by the presence of wind turbines, we recorded videos of ...
Michelle Weschler   +2 more
wiley   +1 more source

Oxidative Stability and Rheological Features in Recycled Composites Based on Postconsumer Polypropylene and Antioxidant‐Loaded Silicas

open access: yesPolymer Engineering &Science, EarlyView.
Role of antioxidant supported on MCM‐41 and nano‐silica in enhancing oxidation induction time (OIT) and nucleation performance. ABSTRACT Plastic recycling efforts are hindered by the reduction of material properties in recyclates stemming from oxidative degradation of their polymeric chains.
Enrique Blázquez‐Blázquez   +4 more
wiley   +1 more source

No trade-off between learning speed and associative flexibility in bumblebees: a reversal learning test with multiple colonies [PDF]

open access: yes, 2012
Potential trade-offs between learning speed and memory-related performance could be important factors in the evolution of learning. Here, we test whether rapid learning interferes with the acquisition of new information using a reversal learning paradigm.
Raine, Nigel E.   +8 more
core   +1 more source

SYN‐A, a naturally derived synergist, restores pyrethroid efficacy against cabbage stem flea beetle but negatively impacts its parasitoid Microctonus brassicae

open access: yesPest Management Science, EarlyView.
SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos   +2 more
wiley   +1 more source

Insect pollinators of haskap (Lonicera caerulea L.: Caprifoliaceae) in subarctic Canada

open access: yesOpen Agriculture, 2019
Recently, the Yukon has seen a large growth in agricultural activity. Crops of commercial interest for local consumption and the export market include domestic berries, especially haskap (Lonicera caerulea L.).
Leung Maria C.-Y., Forrest Jessica R.K.
doaj   +1 more source

Bumble bees (Bombus spp) along a gradient of increasing urbanization. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND: Bumble bees and other wild bees are important pollinators of wild flowers and several cultivated crop plants, and have declined in diversity and abundance during the last decades.
Karin Ahrné   +2 more
doaj   +1 more source

Development and Evaluation of a Low‐Cost, Semi‐Automated Camera Trap for Surveying Bumble Bee Communities

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Camera traps are emerging as a useful tool for noninvasive insect monitoring; however, it remains unclear how to lure diurnal insects to traps, how to detect them upon arrival, and how camera‐based methods compare to conventional sampling. We developed a low‐cost, open‐source camera trap to monitor wild bumble bees in agricultural fields. We found that
Michael P. Getz   +4 more
wiley   +1 more source

Impacts of the Use of Nonnative Commercial Bumble Bees for Pollinator Supplementation in Raspberry

open access: yes, 2011
Evidence for pollinator declines has led to concern that inadequate pollination services may limit crop yields. The global trade in commercial bumble bee (Bombus spp.) colonies provides pollination services for both glasshouse and open-field crops.
S N Jennings (16200008)   +15 more
core   +1 more source

Reconciling Goffman and Disability Studies: “Interactional” and “Structural” Stigma in the Lives of Parents of Learning‐Disabled Adults

open access: yesSymbolic Interaction, EarlyView.
Erving Goffman cuts a divisive figure in disability studies. Some criticize his conception of “stigma” as deviance‐focused and as ignoring structural forces that shape personal encounters. Others praise his recognition of stigma as an interactional phenomenon.
Gareth M. Thomas
wiley   +1 more source

Effects of climate on intra- and interspecific size variation in bumble-bees

open access: yes, 2005
1. In contrast to other social bees, bumble-bees exhibit considerable size variation within the worker caste. This size variation has not been adequately explained, although it is known that larger workers tend to be foragers and smaller bees spend more ...
Peat, J.   +11 more
core   +1 more source

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