Results 121 to 130 of about 34,476 (278)

Concentrated vulnerabilities in bees: Diet specialists have smaller geographic ranges

open access: yesInsect Conservation and Diversity, EarlyView.
Niche breadth theory predicts a positive association between range size and diet breadth, which could concentrate risk among specialists, but this is not well established for bees. Using global occurrence data (range size) and natural history collection‐derived pollen data (diet breadth), we compared these traits in 633 species from six families and ...
Charles N. Thrift   +4 more
wiley   +1 more source

Native bees (Hymenoptera: Apoidea) and berry polycultures: Studying farmers’ motivations for diversification and the impact of mass floral resources on pollinator communities [PDF]

open access: yes, 2017
Floral resource continuity is an important component in pollinator conservation. Mass blooms early in the season may bolster pollinator communities on sequentially flowering crops by creating a resource pulse in an agricultural landscape.
Hayes, Jen
core   +1 more source

Reliability of the entomovector technology using Prestop-Mix and Bombus terrestris L. as a fungal disease biocontrol method in open field [PDF]

open access: yes, 2016
Botrytis cinerea Pers.: Fr. is a major plant pathogen, and a new approach is needed for its control in strawberry to minimise the increasing use of synthetic fungicides.
Dreyersdorff, Gerit   +7 more
core   +1 more source

Do Laboratory‐Reared Flies Perform Differently as Pollinators? Morphology, Behaviour and Pollination Performance of Eristalis tenax (Syrphidae)

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Flies (Diptera) are important pollinators in global agriculture, yet little is known about how intraspecific trait variation influences their pollination performance. We compared morphological traits, foraging behaviour and pollination‐related performance metrics between laboratory‐reared (hereafter lab‐reared) and wild populations of ...
Abby E. Davis   +8 more
wiley   +1 more source

Foxglove, Digitalis purpurea: An Eco-feast Plant for Bumble Bee Conservation in the Northwestern Himalayas

open access: yesSociobiology
Bumble bees (Bombus spp.) are key pollinators in Himalayan ecosystem, but habitat degradation and floral resource scarcity threaten their population. Foxglove, Digitalis purpurea, an introduced plant with deep corolla, is an important source of pollen ...
Ankita Guleria   +4 more
doaj   +1 more source

The genomes of two key bumblebee species with primitive eusocial organization [PDF]

open access: yes, 2015
Background: The shift from solitary to social behavior is one of the major evolutionary transitions. Primitively eusocial bumblebees are uniquely placed to illuminate the evolution of highly eusocial insect societies.
Amdam, Gro V.   +143 more
core   +17 more sources

Rapid disruption of pollination function by the invasive plant Impatiens glandulifera

open access: yesPlant Biology, EarlyView.
Invasion by Impatiens glandulifera rapidly disrupts pollination of the native plant Stachys sylvatica by altering pollen transport by shared bumblebee pollinators. A short‐term field introduction revealed a dramatic decline in conspecific pollen deposition within 4 days, showing that pollination function can collapse quickly following invasion, even ...
R. Pérez‐Barrales   +3 more
wiley   +1 more source

Identification and analysis of the male labial gland secretions of three species of Bombus (Thoracobombus) (Hymenoptera: Apidae)

open access: yesJournal of Crop Protection, 2014
The males of the three species of bumblebees, Bombus (Thoracobombus) ruderarius (Müller), B. (T.) persicus Radoszkowskiand B. (T.) mesomelas Gerstaecker collected from Vikan village, Qazvin province and their male labial gland secretions were analyzed by
Parisa Abdoli, Alireza Monfared
doaj  

The large carpenter bee Xylocopa augusti (Hymenoptera: Apidae): new record for Chile [PDF]

open access: yes, 2013
The large carpenter bee Xylocopa (Neoxylocopa) augusti Lepeletier de Saint Fargeau, 1841, is here recorded for the first time in Chile. This new record increases to four the number of carpenter bees known for the country.
Allendes, Juan L.   +2 more
core   +4 more sources

Bombus campestris

open access: yes, 2022
Published as part of FIORDALISO, William, REVERTÉ, Sara, WOOD, Thomas, BARBIER, Yvan, RASMONT, Pierre, LEFÈBVRE, Alexandre, LOOCKX, Martin, REESE, Alexandre, RUELLE, Eulalie & MICHEZ, Denis, 2022, Inventaire et conservation des abeilles sauvages (Hymenoptera:, pp.
FIORDALISO, William   +9 more
openaire   +2 more sources

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