Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Hannelie Human"'
Publikováno v:
South African Journal of Science, Vol 120, Iss 1/2 (2024)
Externí odkaz:
https://doaj.org/article/8bf1b40dbf5f4f70b9e74eb963843dd7
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract Honey bees process nectar into honey by active evaporation on the tongue and passive evaporation involving nest ventilation and fanning behaviour, as well as enzymatic action. The elimination of excess water from nectar carries considerable
Externí odkaz:
https://doaj.org/article/f62f7967bc70470eb9e22de1894b47e9
Publikováno v:
PLoS ONE, Vol 11, Iss 6, p e0156584 (2016)
Over a decade, declines in honey bee colonies have raised worldwide concerns. Several potentially contributing factors have been investigated, e.g. parasites, diseases, and pesticides. Neonicotinoid pesticides have received much attention due to thei
Externí odkaz:
https://doaj.org/article/447ee01ed6cb4340882d570f88e4c09e
Autor:
Susan W. Nicolson, Esther Elizabeth Du Rand, Hannelie Human, Christian Walter Werner Pirk, Christian Stutzer
Publikováno v:
Apidologie
Apidologie, 2020, 51 (1), pp.94-106. ⟨10.1007/s13592-019-00718-4⟩
Apidologie, 2020, 51 (1), pp.94-106. ⟨10.1007/s13592-019-00718-4⟩
International audience; AbstractNutritional stress due to habitat transformation and loss is one of several factors contributing to current declines in global bee populations. Bees obtain protein from pollen, which in honeybees is consumed and digest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06573a4767c7ef150c3914ad5c484f8b
https://hal.archives-ouvertes.fr/hal-03042822/file/13592_2019_Article_718.pdf
https://hal.archives-ouvertes.fr/hal-03042822/file/13592_2019_Article_718.pdf
Publikováno v:
Journal of Insect Physiology. 108:25-30
For two decades, neonicotinoid insecticides have been extensively used worldwide. Targeting neuronal receptors, they have deleterious effects on the behaviour and physiology of many insects. Bees are exposed to these insecticides in pollen and nectar
Publikováno v:
Journal of Insect Physiology. 107:302-308
Pollen, the main protein source for honey bees, is mixed with regurgitated nectar or honey during collection and then stored as ‘bee bread’ before its consumption, mainly by young nurse workers. It has been suggested that storage of pollen improv
Autor:
Salome Smit, Christian Walter Werner Pirk, Mervyn Beukes, Hannelie Human, Zeno Apostolides, Susan W. Nicolson, Esther Elizabeth Du Rand
Publikováno v:
Insect Biochemistry and Molecular Biology. 82:41-51
Despite potential links between pesticides and bee declines, toxicology information on honey bee larvae (Apis mellifera) is scarce and detoxification mechanisms in this development stage are virtually unknown. Larvae are exposed to natural and synthe
Autor:
Robin M. Crewe, Ursula Strauss, Hannelie Human, Vincent Dietemann, Christian Walter Werner Pirk
Publikováno v:
Parasitology. 143:374-387
SUMMARYVarroa destructor is considered the most damaging parasite affecting honeybees (Apis mellifera L.). However, some honeybee populations such as the savannah honeybee (Apis mellifera scutellata) can survive mite infestation without treatment. It
Publikováno v:
Journal of Insect Physiology. 69:74-79
The effects of pesticides on honeybee larvae are less understood than for adult bees, even though larvae are chronically exposed to pesticide residues that accumulate in comb and food stores in the hive. We investigated how exposure to a plant alkalo
Autor:
Hannelie Human, Ursula Strauss, Vincent Dietemann, Robin M. Crewe, Christian Walter Werner Pirk
Publikováno v:
Experimental and Applied Acarology. 65:89-106
The devastating effects of Varroa destructor Anderson & Trueman on European honeybee colonies (Apis mellifera L.) have been well documented. Not only do these mites cause physical damage to parasitised individuals when they feed on them, they also tr