Results 101 to 110 of about 158,284 (274)

Measures to support populations of solitary bees in agroecosystems

, 2021
Solitary bees participate in the pollination of crops. According to our field\nsurvey, this involves 88 species of solitary bees in spring, mainly mining bees\n(Andrenidae) and sweat bees (Halictidae) nesting in the soil.
Šlachta, Martin
core  

Foraging energetics reveals late‐summer challenges for pollinators across two British cities

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Foraging bees often work within fine energetic margins, but recent work has shown that foraging conditions can vary markedly across the year. Despite the importance of seasonality for pollinator foraging, most work in this area has relied on indirect approaches. However,
Ciaran Harris, Francis L. W. Ratnieks, Nicholas J. Balfour   +2 more
wiley   +1 more source

Reproductive Senescence in the Pollinator, Megachile rotundata

Insects
The disposable soma theory posits that organisms allocate limited resources between reproduction, maintenance, and growth, resulting in trade-offs, particularly as they age.
Jacob B. Pithan, Brooke L. Kohler, Arun Rajamohan, Kendra J. Greenlee   +3 more
doaj   +1 more source

No evidence for environmental filtering of cavity-nesting solitary bees and wasps by urbanization using trap nests. [PDF]

Ecol Evol, 2022
Xie G, Sookhan N, Carscadden KA, MacIvor JS.   +3 more
europepmc   +1 more source

Increased overwintering temperature reduces reproductive success of the solitary bee species Osmia bicornis

Scientific Reports
Solitary wild bees play a key role as pollinators of wild plants and crops, but they are increasingly at risk from anthropogenic global change, such as climate warming.
Sarah Müller, Jana Collatz, Henning Richter, Robert Zboray, Matthias Albrecht   +4 more
doaj   +1 more source

Nutritional stress exacerbates impact of a novel insecticide on solitary bees' behaviour, reproduction and survival. [PDF]

Proc Biol Sci, 2022
Knauer AC, Alaux C, Allan MJ, Dean RR, Dievart V, Glauser G, Kiljanek T, Michez D, Schwarz JM, Tamburini G, Wintermantel D, Klein AM, Albrecht M.   +12 more
europepmc   +1 more source

Mortal relationality: waria family care and the ethics of dying in Bali Relationnalité mortelle : soins familiaux des waria et éthique des mourants à Bali

Journal of the Royal Anthropological Institute, EarlyView.
Can a good death occur for those who balance on the edges of grievability? In Bali, where death marks a transition within the cycles of reincarnation, a good death depends on the mortuary care performed by intimate others – care that may be foreclosed to those whose lives are shaped by stigma.
Sylvia Tidey
wiley   +1 more source

Comparative temporal response of toxicity for the neonicotinoid clothianidin and organophosphate dimethoate insecticides in two species of solitary bee (Osmia bicornis and Osmia cornuta)

Ecotoxicology and Environmental Safety
Solitary bees provide essential pollination services. Concerns for the decline of these wild bee species have led to calls for their inclusion in pesticide risk assessment. Solitary bees differ from honey bees in their physiology and ecology and this may
Helen Hesketh, Jan Baas, Elma Lahive, Alexander G. Robinson, David J. Spurgeon, Matthew S. Heard   +5 more
doaj   +1 more source

Endothermy and thermoregulation in solitary bees

, 1990
This thesis examines the roles of endothermy and body size in the thermal biology of solitary bees (Hymenoptera: Apoidea) within the species Anthophora plumipes (Anthophoridae) Amegilla sapiens (Anthophoridae) and Creightonellafrontalis (Megachilidae), within the genus Anthophora, and over the Apoidea as a whole.
openaire   +1 more source

Susceptibility of solitary bees to agrochemicals highlights gaps in bee risk assessment

Environmental Toxicology and Pharmacology
Ground-nesting solitary bees are the most abundant bee species in the xeric areas of the world, but the effects of agrochemicals on them have been little studied. Herein, we evaluated the topical toxicity of an insecticide, a herbicide, and an essential oil on Mediterranean ground-nesting bees (Andrena impunctata, A. nigroolivacea, A.
Roberto Catania, Rodrigo Cupertino Bernardes, Marta Bonforte, Lívia Maria Negrini Ferreira, Maria Augusta Pereira Lima, Dariusz Teper, Lucia Zappala, Gaetana Mazzeo   +7 more
openaire   +3 more sources