Results 51 to 60 of about 7,128 (176)

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

What currency do bumble bees maximize? [PDF]

PLoS ONE, 2010
In modelling bumble bee foraging, net rate of energetic intake has been suggested as the appropriate currency. The foraging behaviour of honey bees is better predicted by using efficiency, the ratio of energetic gain to expenditure, as the currency.
Nicholas L Charlton, Alasdair I Houston
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

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

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

Comparing species richness and abundance of bumble bees between urban and natural areas using a photographic survey approach

Frontiers in Ecology and Evolution
Bumble bees are essential pollinators that provide critical ecosystem services yet, studies are documenting global species declines while recognizing those declines may be understated due to insufficient baseline data.
Janelle MacLeod, Marina Silva-Opps, Javier Sanchez   +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

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

Pesticide risk to managed bees during blueberry pollination is primarily driven by off-farm exposures

Scientific Reports, 2022
When managed bee colonies are brought to farms for crop pollination, they can be exposed to pesticide residues. Quantifying the risk posed by these exposures can indicate which pesticides are of the greatest concern and helps focus efforts to reduce the ...
Kelsey K. Graham, Meghan O. Milbrath, Yajun Zhang, Nicolas Baert, Scott McArt, Rufus Isaacs   +5 more
doaj   +1 more source

Influence of elevation, climate, snowmelt and floral abundance on body size of solitary bees

Ecological Entomology, EarlyView.
We measured body size in bee species from a 10‐year specimen collection from Colorado sub‐alpine meadows (2450–3450 m) and tested effects of elevation and annual snowmelt, climate and floral abundance. 2 out of 4 bee species collected across a broad elevation range showed a decline in body size with higher elevations; the other two showed no effect ...
Lachlan C. Jones, Melanie R. Kazenel, Kristin Conrad, Jane E. Ogilvie, Ian K. Breckheimer, Rebecca E. Irwin   +5 more
wiley   +1 more source