Results 111 to 120 of about 50,264 (310)

So near and yet so far: Harmonic radar reveals reduced homing ability of nosema infected honeybees [PDF]

open access: yes, 2014
Pathogens may gain a fitness advantage through manipulation of the behaviour of their hosts. Likewise, host behavioural changes can be a defence mechanism, counteracting the impact of pathogens on host fitness.
Clark, Suzanne J.   +6 more
core   +1 more source

Biologia floral e polinização de pimenta malagueta (Capsicum frutescens L., Solanaceae): um estudo de caso = Floral biology and pollination of hot pepper (Capsicum frutescens L., Solanaceae): a case study

open access: yesActa Scientiarum: Biological Sciences, 2007
A antese, a deiscência das anteras, a receptividade do estigma, o padrão de crescimento do tubo polínico e o percentual de vingamento dos frutos de Capsicum frutescens L.
Darci de Oliveira Cruz   +1 more
doaj  

Honeybee rebel workers invest less in risky foraging than normal workers [PDF]

open access: yes, 2018
In eusocial insect colonies, workers have individual preferences for performing particular tasks. Previous research suggests that these preferences might be associated with worker reproductive potential; however, different studies have yielded ...
Kuszewska, Karolina   +2 more
core   +1 more source

Phylogenetic analysis of the trypanosomatid parasite Lotmaria passim in honey bees (Apis mellifera) in Poland

open access: yesJournal of Veterinary Research
Lotmaria passim (L. passim) is a single-celled flagellate which colonises the bee gastrointestinal tract and is highly prevalent in honey bees. This parasite is associated with colony losses.
Iller Maria   +4 more
doaj   +1 more source

bal arisi apis mellifera l zehiri

open access: yesJournal of the Faculty of Agriculture, 1990
OZET Bal arisi (Apis melUfera L.), bal ve ari sutu gibi gida ve ilac olarak buyuk oneme sahip urunleri, kozmetik ve diger bazi sanayilerde buyuk degeri olan balmumu ve propolis gibi maddeleri yapmakta ise de, bu bocegin asil onemi bitkilerde yaptigi tozlasmadan kaynaklanmaktadir.
openaire   +2 more sources

Urban landscapes tend to increase the presence of pathogenic protozoa, microsporidia and viruses, but likely decrease the abundance of viruses in wild bees and wasps

open access: yesInsect Science, EarlyView.
• The bees Anthophora plumipes and Osmia cornuta had a higher occurrence probability of the neogregarine protozoan Apicystis bombi in more fragmented urban areas.• In the bee Halictus scabiosae and wasp Polistes dominula, hotter urban areas increased the likelihood of occurrence of viruses.• The viruses were found to be replicative in the samples, and ...
Andrea Ferrari   +2 more
wiley   +1 more source

The diversity and floral hosts of bees at the Archbold Biological Station, Florida (Hymenoptera: Apoidea) [PDF]

open access: yes, 2002
A list is provided of 113 species of bees and their 157 known floral hosts at the Archbold Biological Station(ABS), a 2105 ha site on the Lake Wales Ridge in Highlands County in south-central Florida.
Deyrup, Mark   +2 more
core   +1 more source

Wild bee toxicity data for pesticide risk assessments [PDF]

open access: yes, 2019
Pollination services are vital for agriculture, food security and biodiversity. Although many insect species provide pollination services, honeybees are thought to be the major provider of this service to agriculture. However, the importance of wild bees
Lewis, Kathleen, Tzilivakis, John
core   +2 more sources

Effect of pollination of strawberry by Apis mellifera L. and Chrysoperla carnea S. on quality of the fruits

open access: yesNova Scientia, 2014
Se evaluó la contribución de Apis mellifera L. y Chrysoperla carnea S. como polinizadores del cultivo de la fresa, utilizando flores primarias de la variedad Festival en un experimento realizado en Irapuato, Guanajuato, México.
Iván Interiano Zapata   +5 more
doaj  

CONTRIBUCIÓN AL CONOCIMIENTO DE ESPECIES APIBOTÁNICAS EN DOS REGIONES DE MEZQUITAL, DGO., MEX.

open access: yesEpistemus, 2019
Se reportan 115 especies, en 98 géneros de 38 familias botánicas que son fuente de alimento para las abejas (Apis mellifera L.), presentes en dos regiones del municipio del Mezquital, Dgo. y una descripción breve del tipo de vegetación en relación a las
David Ramírez Noya   +1 more
doaj   +1 more source

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