Results 41 to 50 of about 8,742 (201)

First detection of the larval chalkbrood disease pathogen Ascosphaera apis (Ascomycota: Eurotiomycetes: Ascosphaerales) in adult bumble bees. [PDF]

PLoS ONE, 2015
Fungi in the genus Ascosphaera (Ascomycota: Eurotiomycetes: Ascosphaerales) cause chalkbrood disease in larvae of bees. Here, we report the first-ever detection of the fungus in adult bumble bees that were raised in captivity for studies on colony ...
Sarah A Maxfield-Taylor, Alija B Mujic, Sujaya Rao   +2 more
doaj   +1 more source

Using respiratory physiology techniques in assessments of pesticide effects on bees

Julius-Kühn-Archiv, 2018
The determination of sub-lethal effects of pesticides on beneficial insects is challenging topic because the vast number of different possible endpoints. Traditionally measured endpoints reflect the basic outcome but do not give any information about the
Karise, Reet, Raimets, Risto, Dreyersdorff, Gerit, Mänd, Marika   +3 more
doaj   +1 more source

Repellency of insecticides and the effect of thiacloprid on bumble bee colony development in red clover (Trifolium pratense L.) seed crops

Acta Agriculturae Scandinavica. Section B, Soil and Plant Science, 2019
The study intended to compare repellency of three insecticides on bumble bees and honey bees in Norwegian red clover (Trifolium pratense L.) seed crops, and to examine effects of thiacloprid on bumble bee colony development in the field.
Lars T. Havstad, John I. Øverland, Silja Valand, Trygve S. Aamlid   +3 more
doaj   +1 more source

Identities, concentrations, and sources of pesticide exposure in pollen collected by managed bees during blueberry pollination

Scientific Reports, 2021
Bees are critical for crop pollination, but there is limited information on levels and sources of pesticide exposure in commercial agriculture. We collected pollen from foraging honey bees and bumble bees returning to colonies placed in blooming ...
Kelsey K. Graham, Meghan O. Milbrath, Yajun Zhang, Annuet Soehnlen, Nicolas Baert, Scott McArt, Rufus Isaacs   +6 more
doaj   +1 more source

Reproductive stages in lowbush blueberry (Vaccinium angustifolium) occur earlier with increasing temperature

American Journal of Botany, EarlyView.
Abstract Premise Climate change is altering the timing of many plant phenological events, yet most studies focus on flowering, with less attention given to later reproductive stages such as fruit development and ripening. Vaccinium angustifolium (lowbush blueberry) is an important perennial berry species that may be sensitive to these changes.
Jenna Floyd, Elise Cadiou, Alain G. Belliveau, Zoe A. Panchen, Terrell T. Roulston, Zoë Migicovsky   +5 more
wiley   +1 more source

Effects of climate change on phenologies and distributions of bumble bees and the plants they visit

Ecosphere, 2016
Surveys of bumble bees and the plants they visit, carried out in 1974 near the Rocky Mountain Biological Laboratory in Colorado, were repeated in 2007, thus permitting the testing of hypotheses arising from observed climate change over the intervening 33‐
Graham H. Pyke, James D. Thomson, David W. Inouye, Timothy J. Miller   +3 more
doaj   +1 more source

Bumble bee nest thermoregulation: a field study

Journal of Apicultural Research, 2023
Careful control of brood temperature is important for successful colony development in social insects. Six bumble bee colonies of six common Central European species (B. hypnorum, B. hortorum, B. argillaceus, B. pascuorum, B. humilis, B. sylvarum) were continuously monitored for several weeks.
Anton Gradišek, Jani Bizjak, Aleksej Popovski, Janez Grad   +3 more
openaire   +2 more sources

Orchard netting impacts on biodiversity leading to cascading effects at the ecosystem level

Biological Reviews, EarlyView.
ABSTRACT Agriculture must ensure food production without further compromising the ecosystem functions upon which it depends. Agricultural practices should therefore avoid harming farmland biodiversity, especially of taxa that supply the key ecosystem services (e.g.
Corrado Alessandrini, Karan Sethi, Emanuela Granata, Ekaterina Mogilnaia, Valeria Vitangeli, Giovanni Zanfei, Chiara Fedrigotti, Paolo Biella, Dino Scaravelli, Luigi Marchesi, Péter Batáry, Diego Rubolini, Paolo Pedrini, Mattia Brambilla   +13 more
wiley   +1 more source

Species composition and elevational distribution of bumble bees (Hymenoptera, Apidae, Bombus Latreille) in the East Himalaya, Arunachal Pradesh, India [PDF]

ZooKeys, 2019
The East Himalaya is one of the world’s most biodiverse ecosystems. However, very little is known about the abundance and distribution of many plant and animal taxa in this region.
Martin Streinzer, Jharna Chakravorty, Johann Neumayer, Karsing Megu, Jaya Narah, Thomas Schmitt, Himender Bharti, Johannes Spaethe, Axel Brockmann   +8 more
doaj   +3 more sources

Gender, violence, and killing: Revisiting femicide, and the overlooked realities of male victimization

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract The term femicide, widely used in reference to the “killing of a woman because she is a woman,” has been questioned on the ground that it implies unequal dignity of men and women victims of gender related death. This position called for an analysis of the terminology used to describe and define the various forms of killing of women and men. We
Giuseppe Benagiano, Kristina Gemzell‐Danielsson, Marwan Habiba, Sekaren Shantha‐Kumari   +3 more
wiley   +1 more source