Results 51 to 60 of about 32,052 (317)

Larval oral exposure to thiacloprid: Dose-response toxicity testing in solitary bees, Osmia spp. (Hymenoptera: Megachilidae)

open access: yesEcotoxicology and Environmental Safety, 2021
Risk assessment of pesticides involves ecotoxicological testing. In case pesticide exposure to bees is likely, toxicity tests are performed with honey bees (Apis mellifera), with a tiered approach, for which validated and internationally accepted test ...
Gregor Claus   +4 more
doaj   +1 more source

The contributions of flower strips to wild bee conservation in agricultural landscapes can be predicted using pollinator habitat suitability models

open access: yesEcological Solutions and Evidence, 2023
Sowing flower strips along field edges is a widely adopted method for conserving pollinating insects in agricultural landscapes. To maximize the effect of flower strips given limited resources, we need spatially explicit tools that can prioritize their ...
Markus A. K. Sydenham   +10 more
doaj   +1 more source

The Impact of Different Biotopes and Management Practices on the Burden of Parasites in Artificial Nests of Osmia spp. (Megachilidae) Bees

open access: yesDiversity, 2022
The decline in pollinator insect abundance and diversity is increasing on a global scale. Major threats are the byproducts of numerous negative environmental pressures acting individually or in combination.
Ivana Tlak Gajger   +5 more
doaj   +1 more source

Ten Bee Species New to Green Roofs in the Chicago Area [PDF]

open access: yes, 2018
Green roofs increasingly provide habitat for many insects in urban environments. Pollinators such as bees may utilize foraging and nesting resources provided by green roofs but few studies have documented which species occur in these novel habitats. This
Ascher, John S   +2 more
core   +2 more sources

Are Botanical Biopesticides Safe for Bees (Hymenoptera, Apoidea)?

open access: yesInsects, 2023
The recent global decline in insect populations is of particular concern for pollinators. Wild and managed bees (Hymenoptera, Apoidea) are of primary environmental and economic importance because of their role in pollinating cultivated and wild plants ...
Roberto Catania   +5 more
doaj   +1 more source

Growers can do something to attract bees to orchards [PDF]

open access: yes, 2016
Far more solitary bees than social bumblebees and honeybees were caught in pan traps in apple trees in 2016. Virtually all the solitary bees were ground nesting bees. Solitary bees require nesting sites and the fruit growers can do something to increase
Hansted, L., Madsen, Henning Bang
core  

Parasitism of \u3ci\u3eAncistrocerus Antilope\u3c/i\u3e (Hymenoptera: Eumenidae) by Leucospis Affinis (Hymenoptera: Leucospididae) [PDF]

open access: yes, 2017
The chalcid wasp Leucospis affinis has been known to parasitize only megachilid bees. Its rare occurrence as a parasite of the eumenid wasp Ancistrocerus antilope indicates that eumenid wasps may be a large resource this chalcid is not ...
Cowan, David P
core   +2 more sources

Role of Wadsley Defects and Cation Disorder to Enhance MoNb12O33 Diffusion

open access: yesAdvanced Energy Materials, EarlyView.
Wadsley‐Roth niobates are high‐rate capable and durable anode materials for lithium‐ion batteries. Defect‐tailoring of MoNb12O33 is shown to substantially enhance lithium diffusion. Computational models were used to separate the effects of cation disorder and Wadsley defects to identify that both led to the occupation of fast diffusion sites at lower ...
CJ Sturgill   +10 more
wiley   +1 more source

Integrative Genomics Reveals the Genetics and Evolution of the Honey Bee’s Social Immune System [PDF]

open access: yes, 2019
Social organisms combat pathogens through individual innate immune responses or through social immunity—behaviors among individuals that limit pathogen transmission within groups.
Currie, Rob   +12 more
core   +1 more source

Leafcutter Bees (Hymenoptera: Megachilidae) as Pollinators of Pigeon Pea (Cajanus cajan (L.) Millsp., Fabaceae): Artificial Trap Nests as a strategy for their conservation

open access: yesSociobiology, 2022
Solitary bees of the family Megachilidae are the key pollinators of pigeon pea. Artificial trap nests were used to study nesting parameters, such as occupancy rate, nest establishment time, and building pattern during the vegetative and flowering stages
Amala Udayakumar   +1 more
doaj   +1 more source

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