Results 101 to 110 of about 89,176 (260)

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

open access: yesAgricultural 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 Bumble Bees of Florida

open access: yesThe Florida Entomologist, 1923
A. Outer surface of hind tibiae convex and hairy; face of males black Psithyrus. Abdomen of female entirely dark; that of male very variable P. variabilis. AA. Outer surface of hind tibiae of female concave and smooth; face of male usually with yellow -..-....... Bombus. a. Thorax with a distinct black band. b.
openaire   +1 more source

The transcription factor Krüppel homolog 1 is linked to hormone mediated social organization in bees

open access: yesBMC Evolutionary Biology, 2010
Background Regulation of worker behavior by dominant queens or workers is a hallmark of insect societies, but the underlying molecular mechanisms and their evolutionary conservation are not well understood.
Fan Yongliang   +5 more
doaj   +1 more source

The Ideology of Sovereign Money: How Bitcoin Harms Politics

open access: yes
Constellations, EarlyView.
Nanna Lilletvedt Sæten
wiley   +1 more source

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

open access: yesPLoS 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   +2 more
doaj   +1 more source

Immune response impairs learning in free-flying bumble-bees

open access: yes, 2008
Parasites can influence different host behaviours including foraging, mate choice and predator avoidance. Several recent papers have shown reduced learning abilities in infected insects.
A. Phillis (7585373)   +4 more
core   +5 more sources

Tachinidae (Diptera) as Floral Visitors and Pollinators in Natural and Managed Systems

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
We review the roles of bristle flies (Tachinidae) as pollinators in natural and managed systems. We find that most tachinid genera visit flowers and that floral‐adapted mouthparts have evolved repeatedly many times in the family. We review patterns of floral specificity and assess the efficacy of tachinids as pollinators with case studies.
John O. Stireman III   +1 more
wiley   +1 more source

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

open access: yesEcological 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   +8 more
wiley   +1 more source

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

open access: yesEcological 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   +5 more
wiley   +1 more source

Difference and the Liberation of Sufficient Reason

open access: yesEuropean Journal of Philosophy, EarlyView.
Abstract The Principle of Sufficient Reason (PSR) holds that every event and entity can be explained by a sufficient reason or cause. Philosophers have long struggled with the question of the PSR's compatibility with freedom, for if what occurs or exists follows necessarily from its sufficient reason then it seems it could not have been otherwise ...
Louis Matheou
wiley   +1 more source

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