Results 21 to 30 of about 98,089 (315)

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

Scientific 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, Emily Erickson, Harland M. Patch, Christina M. Grozinger, Junpeng Mu   +4 more
doaj   +1 more source

Using citizen science to monitor pollination services [PDF]

, 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, Bateman, Costanza, Cussans, Dickinson, Dicks, Dougherty, Drayner, Free, Free, Gallai, Garratt, Ghazoul, Goulson, Goulson, Haines-Young, Hanna, Jauker, Kendall, Klein, Kremen, Kremen, Mackechnie, Oberhauser, Osborne, Owen, Potter, Samnegård, Schmeller, Silvertown, Smith, Steffan-Dewenter, Westphal, WHO, Winfree   +34 more
core   +1 more source

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

Frontiers 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, Qi Zhang, Qi Zhang, Xiao Hu, Chunxiu Pang, Chunxiu Pang, Jilian Li, Jiaxing Huang   +7 more
doaj   +1 more source

Preventing a Risk/Risk Trade-off: An Analysis of the Measures Necessary to Increase U.S. Pollinator Numbers [PDF]

, 2017
This Note will proceed in four parts. Part II will discuss the importance of pollinators and the possible reasons for their declining numbers. Part III will delve into the current and proposed actions to increase pollinator populations that are taking ...
Acchiardo Vallejo, Camila
core   +2 more sources

Global Trends in the Status of Bird and Mammal Pollinators [PDF]

, 2015
Biodiversity is declining, with direct and indirect effects on ecosystem func-tions and services that are poorly quantified. Here, we develop the first globalassessment of trends in pollinators, focusing on pollinating birds and mam-mals.
Barnosky, Benning, Biesmeijer, BirdLife International, Borgella, Butchart, Butchart, Butchart, Böhm, Courter, Cronk, De Grammont, Eilers, Fleming, Gallai, Garibaldi, Gerlach, Hadley, Hoffmann, Hoffmann, Howell, Hoyo, IUCN, Kasso, Klein, Kremen, Kunz, Lebuhn, Lewis, McKinney, Mickleburgh, Millennium Ecosystem Assessment, Muchhala, Nicolson, Olesen, Ollerton, Potts, Stuart, Sumner, Tittensor, Velthuis   +40 more
core   +1 more source

Bumble bee queen pheromones are context-dependent

Scientific 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)

Frontiers 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, Chunxiu Pang, Kun Dong, Yueqin Guo, Guiling Ding, Yuming Lu, Zhanbao Guo, Jie Wu, Jiaxing Huang   +8 more
doaj   +1 more source

Enhancement of developmental defects in the boron‐deficient maize mutant tassel‐less1 by reduced auxin levels

Journal of Plant Nutrition and Soil Science, EarlyView., 2023
Abstract Background Plant responses to deficiencies of the micronutrient boron are diverse and go beyond the well‐characterized function of boron in cell wall crosslinking. To explain these phenotypic discrepancies, hypotheses about interactions of boron with various phytohormones have been proposed, particularly auxin.
Michaela S. Matthes, Norman B. Best, Janlo M. Robil, Paula McSteen   +3 more
wiley   +1 more source

An Evaluation of Habitat Uses and Their Implications for the Conservation of the Chinese Bumblebee Bombus pyrosoma (Hymenoptera: Apidae)

Frontiers in Ecology and Evolution, 2021
Bumblebees are important pollinators for many wild plants and crops. However, the bumblebee populations are seriously declining in many parts of the world.
Xiao Hu, Jiyao Liu, Guiling Ding, Muhammad Naeem, Muhammad Naeem, Jilian Li, Fangzhou Ma, Jiaxing Huang, Jiandong An   +8 more
doaj   +1 more source

Pollination services in the UK: how important are honeybees? [PDF]

, 2011
Pollination services are known to provide substantial benefits to human populations and agriculture in particular. Although many species are known to provide pollination services, honeybees (Apis mellifera) are often assumed to provide the majority of ...
Bailey, Alison P., Balcombe, Kelvin G., Breeze, Tom D, Potts, Simon G.   +3 more
core   +1 more source