Results 61 to 70 of about 8,757 (213)

Colony‐level pollen collection reflects visitation of managed bumble bees (Bombus impatiens) in strawberry fields and surrounding landscapes without reducing pollen limitation

Agricultural and Forest Entomology, EarlyView.
We extracted pollen from colony beeswax to quantify season‐long, colony‐level resource use and tested how managed Bombus impatiens visitation and Rosaceae pollen collection relate to landscape context and strawberry pollination. Increased managed bumble bee visitation was not influenced by surrounding landcover, did not reduce pollen limitation and ...
Leeah I. Richardson, Olivia Miller, David Sossa, Aaron Iverson, Scott McArt, Katja Poveda, Heather Grab   +6 more
wiley   +1 more source

The dual crisis: Climate change simultaneously drives pollinator decline and Pest outbreaks

Agricultural and Forest Entomology, EarlyView.
Climate change acts as an asymmetric ecological filter, favouring r‐selected pest traits (rapid reproduction, generalism) while disadvantaging K‐selected pollinators. For every 1°C of warming, bee species richness declines ~25% since the 1990s, while pest‐induced crop losses increase by 10%–25%. A network‐centric approach integrating climate‐responsive
Diriba Fufa Serdo
wiley   +1 more source

The Effect of Foraging on Bumble Bees, Bombus terrestris, Reared under Laboratory Conditions

Insects, 2020
Bumble bees are important pollinators broadly used by farmers in greenhouses and under conditions in which honeybee pollination is limited. As such, bumble bees are increasingly being reared for commercial purposes, which brings into question whether ...
Pavel Dobeš, Martin Kunc, Jana Hurychová, Alena Votavová, Olga Komzáková, Pavel Hyršl   +5 more
doaj   +1 more source

Coinvasional disruptions to island pollinator networks

Conservation Biology, EarlyView.
Abstract Biological invasions can adversely affect pollinator diversity by threatening the maintenance of animal‐pollinated plant communities. Although most studies have examined single invasive species, accelerating species introductions driven by global trade highlight the need to understand how multiple co‐occurring invaders jointly influence ...
Marta Quitián, Isaac Planas‐Sitjà, Maki Morooka, Anna Traveset, Simon M. Tierney, Adam L. Cronin   +5 more
wiley   +1 more source

Bumble Bees of Florida

EDIS
This is a general guide to field identification, species description, and biology of the five bumble bee species Bombus spp. found in Florida. This guide to bumble bee identification in Florida would also be usable for coastal South Carolina, Georgia, Alabama, Louisiana, Mississippi, and Arkansas, but it is not comprehensive for the northern ...
Rachel Mallinger, Joel Neylon, T.R. Fasulo, Lionel Stange   +3 more
openaire   +3 more sources

Two Metschnikowia nectar yeast species have similar volatile profiles but elicit differential foraging in bee pollinators

Ecological Entomology, EarlyView.
Yeasts that specialize in flower nectar play an important role in pollination ecology. Metschnikowia reukaufii and Metschnikowia koreensis were the most prevalent nectar yeasts found in our field sites. Bee pollinators exhibited different behavioural responses to nectar yeasts in field experiments. Bees visited more flowers with M.
M. Elizabeth Moore, Lindsey Wilson, Nathan Brandt, Ayako Wada‐Katsumata, Ahmed M. Saveer, Coby Schal, Robert R. Dunn, Rebecca E. Irwin, Caiti Smukowski Heil   +8 more
wiley   +1 more source

The conservation of bumble bees [PDF]

Bee World, 2003
The approximately 250 known species of bumble bee (genus Bombus) are found predominantly in temperate regions of the northern hemisphere. This region also contains much of the world's human population and the most intensive agricultural regions. Probably as a result of this, many bumble bees appear to be undergoing dramatic declines in range.
openaire   +1 more source

Nutritional composition of pollen stores in managed bees across European agro‐ecosystems reveals species‐specific differences but limited pesticide effects

Ecological Entomology, EarlyView.
In the pollen stores of three bee species deployed across 128 European sites, bumble bees harboured lower lipid content and higher protein‐to‐lipid ratios than honey bees and mason bees. Toxicity‐weighted pesticide risk did not alter protein‐to‐lipid ratios, but higher risk was associated with reduced protein and lipid content in the pollen stores of ...
Antoine Gekière, Clément Tourbez, Maryse Vanderplanck, Tomasz Kiljanek, Guillaume Ghisbain, Elif Kardas, Irene Bottero, Marie‐Pierre Chauzat, Elena Cini, Francesca Corvucci, Joachim R. de Miranda, Gennaro Di Prisco, Christophe Dominik, Francesca V. Grillenzoni, Simon Hodge, Anina Knauer, Marion Laurent, Vicente Martínez‐López, Risto Raimets, Janine M. Schwarz, Deepa Senapathi, Giorgia Serra, Giovanni Tamburini, Dimitry Wintermantel, Mark J. F. Brown, Matthias Albrecht, Cecilia Costa, Pilar De la Rúa, Alexandra‐Maria Klein, Marika Mänd, Simon G. Potts, Maj Rundlöf, Oliver Schweiger, Jane C. Stout, Denis Michez   +34 more
wiley   +1 more source

Bumble Bee Watch community science program increases scientific understanding of an important pollinator group across Canada and the USA.

PLoS ONE
In a time of increasing threats to bumble bees (Hymenoptera: Apidae: Bombus), it is important to understand their ecology and distribution. As experts are limited in resources to conduct field surveys, there is potential for community scientists to help.
Victoria J MacPhail, Richard Hatfield, Sheila R Colla   +2 more
doaj   +1 more source

Eusocial bee species are exposed to different toxic element profiles despite foraging within the same landscape

Ecological Entomology, EarlyView.
Bombus terrestris and Apis mellifera colonies sharing the same landscape (<50 m from each other) collected pollen with significantly different heavy metal concentrations. B. terrestris‐collected pollen contained 2–7× higher concentrations of arsenic, chromium, cobalt, lead and tin than A. mellifera‐collected pollen.
Sarah B. Scott, Nynke Blömer, Lynn V. Dicks   +2 more
wiley   +1 more source