Results 31 to 40 of about 26,708 (242)

Pesticide Exposure Assessment Paradigm for Solitary Bees [PDF]

open access: yesEnvironmental Entomology, 2018
Current pesticide risk assessment for bees relies on a single (social) species, the western honey bee, Apis mellifera L. (Hymenoptera: Apidae). However, most of the >20,000 bee species worldwide are solitary. Differences in life history traits between solitary bees (SB) and honey bees (HB) are likely to determine differences in routes and levels of ...
Sgolastra F.   +9 more
openaire   +2 more sources

Wild Bee Pollen Diets Reveal Patterns of Seasonal Foraging Resources for Honey Bees

open access: yesFrontiers in Ecology and Evolution, 2018
Western honey bees (Apis mellifera) are dominant crop pollinators, and access to summer forage is a critical factor influencing colony health in agricultural landscapes.
Thomas James Wood   +2 more
doaj   +1 more source

Notes on the Nests of \u3ci\u3eAugochloropsis metallica fulgida\u3c/i\u3e and \u3ci\u3eMegachile mucida\u3c/i\u3e in Central Michigan (Hymenoptera: Halictidae, Megachilidae) [PDF]

open access: yes, 2017
Notes on the nesting biology of two ground-nesting species are provided from Central Michigan. A single nest of Augochloropsis metallica fulgida was excavated on 12 July 2014 in Shiawassee County. There were two female nest inhabitants.
Gibbs, Jason
core   +2 more sources

Effects of heat shocks, heat waves, and sustained warming on solitary bees

open access: yesFrontiers in Bee Science
Along with higher average temperatures, global climate change is expected to lead to more frequent and intense extreme heat events, and these different types of warming are likely to differ in their effects on bees. Although solitary bees comprise >75%
Kaleigh A. Vilchez-Russell   +1 more
doaj   +1 more source

Environmental Display Can Buffer the Effect of Pesticides on Solitary Bees

open access: yesInsects, 2020
Environmental quality (e.g., diversity of resource availability, nesting sites, environmental display) plays an important role in an animal’s life. While homogeneous environments can restrict organisms from developing activities such as food seeking ...
Samuel Boff, Josué Raizer, Daniela Lupi
doaj   +1 more source

Male Sleeping Aggregation of Melissodes (Ecplectica) nigroaenea (Smith, 1854) (Hymenoptera, Apidae, Eucerini) in Brazilian Cerrado

open access: yesSociobiology, 2022
Bee males are sometimes found forming sleeping aggregations on stems of bushes or trees to sleep at night, but there is no complete understanding of the reasons for this behaviour.
Wagner Pereira Silva   +1 more
doaj   +1 more source

Protecting an Ecosystem Service: Approaches to Understanding and Mitigating Threats to Wild Insect Pollinators [PDF]

open access: yes, 2016
Insect pollination constitutes an ecosystem service of global importance, providing significant economic and aesthetic benefits as well as cultural value to human society, alongside vital ecological processes in terrestrial ecosystems.
Arce, AN   +26 more
core   +1 more source

Brain microRNAs among social and solitary bees [PDF]

open access: yesRoyal Society Open Science, 2019
ABSTRACT Evolutionary transitions to a social lifestyle in insects are associated with lineage-specific changes in gene expression, but the key nodes that drive these regulatory changes are unknown. We examined the relationship between social organization and lineage-specific microRNAs (miRNAs). Genome scans across 12 bee species showed
Karen M. Kapheim   +6 more
openaire   +5 more sources

Wild bee toxicity data for pesticide risk assessments [PDF]

open access: yes, 2019
Pollination services are vital for agriculture, food security and biodiversity. Although many insect species provide pollination services, honeybees are thought to be the major provider of this service to agriculture. However, the importance of wild bees
Lewis, Kathleen, Tzilivakis, John
core   +2 more sources

Solitary Bees

open access: yesScientific American, 1984
For most people the beehive and the intricate social organization of the honeybees that populate it are the hallmark of bee life. In reality more than 85 percent of the some 20,000 bee species are not social but solitary. Each female independently mates, makes her own nest of about 10 brood cells, stocks the cells with food for the young, lays an egg ...
openaire   +1 more source

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