Results 111 to 120 of about 26,708 (242)

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

AutoPollS: A tool for automated monitoring of pollinators using deep learning

Methods in Ecology and Evolution, EarlyView.
Abstract Deep learning and computer vision hold enormous potential for automated monitoring of biodiversity, including pollinators and other insects. Efficient, scalable monitoring of insect pollinators is crucial given pollinators' role in supporting biodiversity and agricultural productivity amidst declining pollinator populations.
Matthew A.‐Y. Smith, Olivia M. Bernauer, Grace Melone, Brett Graham, Julia Wiessing, Rafael Salas, Jeremy Hemberger, Abhishek Bhattacharyya, Acacia T. S. Tang, Elena Rojas, Joshua San Miguel, Brian J. Spiesman, Claudio Gratton, James D. Crall   +13 more
wiley   +1 more source

Pollinators In Peril: A Systematic Status Review of North American and Hawaiian Native Bees [PDF]

, 2017
While the decline of European honeybees in the United States and beyond has been well publicized in recent years, the more than 4,000 species of native bees in North America and Hawaii have been much less documented. Although these native bees are not as
Kelsey Kopec, Lori Ann Burd
core  

Annual flower strips under the ‘Sweden Blossom’ initiative – how do they perform for pollinators, natural enemies and herbivores?

Agricultural and Forest Entomology, EarlyView.
Pollinator‐targeted annual flower strips increase abundances of pollinators but also natural enemies and herbivores. Natural enemies and herbivores disperse in a taxon‐specific manner into nearby crops. Pest control by ground‐dwellers slightly increases in crop areas near the flower strips.
Neus Rodríguez‐Gasol, Ola Lundin, Elodie Chapurlat, Mattias Hammarstedt, Mattias Jonsson, Johan A. Stenberg, Maria Viketoft   +6 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

Injustice, relational violence, and the foster system

American Journal of Political Science, EarlyView.
Abstract Political theorists have not paid sustained attention to the foster system or treated it as a political institution. Despite this, scholars and social movement advocates have identified the system as a site of social and political injustice. This paper develops an account of racial, class, and relational injustice in the contemporary US foster
Emma Ebowe
wiley   +1 more source

Trace Element Patterns in Juvenile Wild Chimpanzee Dentitions

Archaeometry, EarlyView.
ABSTRACT Trace elements are used to infer mammalian early‐life diets, environmental toxins, dispersal patterns, stress histories, and weaning ages. Here, we employ laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS) to reveal elemental patterns in our closest living relatives, chimpanzees.
Tanya M. Smith, Manish Arora, Maya Bharatiya, Nicole Leonard, Jian‐xin Zhao, Christine Austin   +5 more
wiley   +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

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

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