Results 21 to 30 of about 101,281 (354)

Factors Affecting Pollinators and Pollination [PDF]

open access: yesPsyche: A Journal of Entomology, 2012
While it has been known for at least a decade that the colony numbers of the managed pollinator, the Western honey bee Apis mellifera, was on the decline, pollinator problemwas not well publicized until the Colony Collapse Disorder (CCD) further ravaged the honey bee population in the United States [1].
Zachary Y. Huang, Tugrul Giray
openaire   +2 more sources

Topical Application of Synthetic Hormones Terminated Reproductive Diapause of a Univoltine Weed Biological Control Agent

open access: yesInsects, 2021
Classical biological control is an important method for controlling invasive alien weeds. Univoltine insects can be highly effective biological control agents of annual weeds because they are well synchronized with their host plant.
Ikju Park, Lincoln Smith
doaj   +1 more source

Using citizen science to monitor pollination services [PDF]

open access: yes, 2015
1. Pollination by insects is a vital ecosystem service and the need for its assessment is increasing in recognition and political pressure, but there are currently no large-scale systematic monitoring schemes in place to measure the direct provision of ...
Ahrné   +34 more
core   +1 more source

The macroeconomic cost of catastrophic pollinator declines [PDF]

open access: yes, 2016
We develop a computable general equilibrium (CGE) approach to assess the macroeconomic impacts of productivity shocks due to catastrophic losses of pollination ecosystem services at global and regional scales.
Bauer, Dana Marie, Sue Wing, Ian
core   +1 more source

Impacts of soil nutrition on floral traits, pollinator attraction, and fitness in cucumbers (Cucumis sativus L.)

open access: yesScientific Reports, 2022
Annual plants allocate soil nutrients to floral display and pollinator rewards to ensure pollination success in a single season. Nitrogen and phosphorus are critical soil nutrients whose levels are altered by intensive land use that may affect plants ...
Anthony D. Vaudo   +4 more
doaj   +1 more source

Mating Stimulates the Immune Response and Sperm Storage-Related Genes Expression in Spermathecae of Bumblebee (Bombus terrestris) Queen

open access: yesFrontiers in Genetics, 2021
Bumblebee queens have remarkable spermathecae that store sperm for year-round reproduction. The spermathecal gland is regarded as a secretory organ that could benefit sperm storage.
Yueqin Guo   +7 more
doaj   +1 more source

Bumble bee queen pheromones are context-dependent

open access: yesScientific Reports, 2021
Queen pheromones have long been studied as a major factor regulating reproductive division of labor in social insects. Hitherto, only a handful of queen pheromones were identified and their effects on workers have mostly been studied in isolation from ...
Margarita Orlova, Etya Amsalem
doaj   +1 more source

Effects of Three Types of Pollen on the Growth and Development of Honey Bee Larvae (Hymenoptera, Apidae)

open access: yesFrontiers in Ecology and Evolution, 2022
Pollen serves as an essential protein source for honey bee larvae. The nutrients in pollen greatly influence larval growth and development. Here, the survival, prepupal weight, developmental stage, pollen digestibility and midgut cells in honey bee (Apis
Chunxiu Pang   +8 more
doaj   +1 more source

Investigations into stability in the fig/ fig-wasp mutualism [PDF]

open access: yes, 2010
Fig trees (Ficus, Moraceae) and their pollinating wasps (Chalcidoidea, Agaonidae) are involved in an obligate mutualism where each partner relies on the other in order to reproduce: the pollinating fig wasps are a fig tree’s only pollen disperser ...
Al-Beidh, Sarah, Al-Beidh, Sarah
core   +1 more source

Review: Pollination, Pollinated and Pollinators Interaction in Pakistan

open access: yesJournal of Bioresource Management, 2014
The agriculture sector is important in the overall economy and export earnings of Pakistan. Pollination is an essential ecosystem service that depends on symbiosis between species, the pollinated and the pollinator. Animal mediated pollination contributes to the sexual production of over 90% species of modern angiosperms.
Irshad, Mohammad, Stephen, Elizabeth
openaire   +3 more sources

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