Results 41 to 50 of about 96,948 (300)

Pollination ecology in the 21st century: key questions for future research [PDF]

open access: yes, 2010
To inspire new ideas in research on pollination ecology, we list the most important unanswered questions in the field. This list was drawn up by contacting 170 scientists from different areas of pollination ecology and asking them to contribute their ...
Jane C. Stout   +205 more
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   +4 more sources

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

Role of insects in the pollination of Acacia nigrescens (Fabaceae) [PDF]

open access: yes, 2006
We examined pollination biology of Acacia nigrescens Oliver, flowering at the end of the dry season in Kruger National Park, South Africa. A. nigrescens produces small quantities of concentrated nectar, and has abundant pollen resources available to ...
S.W. Nicolson   +7 more
core   +1 more source

Social Learning in Bumblebees (Bombus impatiens): Worker Bumblebees Learn to Manipulate and Forage at Artificial Flowers by Observation and Communication within the Colony

open access: yesPsyche: A Journal of Entomology, 2013
Social learning occurs when one individual learns from another, mainly conspecific, often by observation, imitation, or communication. Using artificial flowers, we studied social learning by allowing test bumblebees to (a) see dead bumblebees arranged in
Hamida B. Mirwan, Peter G. Kevan
doaj   +1 more source

The Last Mile: Using Local Knowledge to Identify Barriers to Sustainable Grain Legume Production

open access: yesFrontiers in Ecology and Evolution, 2018
Grain legumes (or pulses–annual leguminous crops that are harvested solely for their dried seeds such as lentils or chickpeas) are essential for sustainable cropping systems.
Barbara M. Smith   +6 more
doaj   +1 more source

Spatiotemporal Variation in Pollination Deficits in an Insect-Pollinated Dioecious Crop

open access: yesPlants, 2021
Inadequate quantity and quality of pollen reaching the stigmas decreases the sexual reproductive output of plants, compromising yield. Still, the current extent of pollen limitation affecting yield (i.e., pollination deficits) is poorly quantified.
Helena Castro   +7 more
doaj   +1 more source

Typology in pollination biology: lessons from an historical critique [PDF]

open access: yes, 2011
Typological schemes that describe putative floral adaptations for pollinators have played a central role in pollination biology. In 1882 the prominent German botanist and Darwinist Hermann Müller commented critically on a precursor of modern versions of ...
Ollerton, Jeff   +6 more
core   +1 more source

Yam (Dioscorea rotundata Poir.) Displays Prezygotic and Postzygotic Barriers to Prevent Autogamy in Monoecious Cultivars

open access: yesAgronomy, 2022
Cultivated yam (D. rotundata) is a staple tuber crop in West Africa whose sexual reproduction control remains largely unknown despite its importance for plant breeding programs. In this paper, we compared self-pollination, intracultivar cross-pollination
Narcisse Denadi   +6 more
doaj   +1 more source

Potential application of the bumblebee foraging recruitment pheromone for commercial greenhouse pollination [PDF]

open access: yes, 2009
Commercial bumblebee colonies are important crop pollinators. Here we assess whether application of artificial foraging recruitment pheromone can increase foraging activity in Bombus terrestris colonies on a relevant timescale for commercial pollination.
Raine, Nigel E.   +11 more
core   +1 more source

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