Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Hayo H. W. Velthuis"'
Autor:
Katja Hogendoorn, Hayo H. W. Velthuis
Publikováno v:
Bee World. 94:2-7
Bees are known mainly by one eccentric species, the honey bee, and many people do not realize that there are some 20,000 species of bees, most of them living solitarily. Although honey bees and oth...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0126c929f014840f3d7a997d0392eef
https://doi.org/10.1080/0005772x.2017.1304866
https://doi.org/10.1080/0005772x.2017.1304866
Autor:
Hayo H. W. Velthuis, Jan van der Blom
Publikováno v:
Ethology. 79:281-294
The development of about 20 relatively small nests of Xylocopa pubescens was studied. After the first offspring had become adult, these nests reached a social stage in which there was only one egg-layer per nest. Freshly emerged (teneral) adults eat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35d3aadf47976f4439539f2046b27e9a
https://doi.org/10.1111/j.1439-0310.1988.tb00717.x
https://doi.org/10.1111/j.1439-0310.1988.tb00717.x
Autor:
Adriaan van Doorn, Hayo H. W. Velthuis
Publikováno v:
Apidologie. 37:421-451
D'un point de vue historique, le developpement de la technique d'elevage des bourdons (Bombus spp.) se caracterise par trois phases. Durant la 1 re phase, les reines ont ete attirees dans des domiciles artificiels et diverses techniques ont ete utili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f298fbdcd6024e20ff8abfefbdfdd97
https://doi.org/10.1051/apido:2006019
https://doi.org/10.1051/apido:2006019
Publikováno v:
Apidologie. 37:222-239
The stingless bee Melipona bicolor is facultatively polygynous, a unique character among the bees. Polygynous colonies were not more productive than monogynous colonies. During the process of provisioning and oviposition of cells (POP) a queen may be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::992375f23aba608cf6a67a5934e20faf
https://doi.org/10.1051/apido:2006025
https://doi.org/10.1051/apido:2006025
Publikováno v:
Apidologie. 36:169-185
Female behaviour in social Hymenoptera and the queen-worker conflict with respect to male production have been the focus of many studies. Although male production is an investment that is in conflict with investment in colony size, males play a vital
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ca4eedbab669382d8add278fff91d20
https://doi.org/10.1051/apido:2005014
https://doi.org/10.1051/apido:2005014
Publikováno v:
Behavioral Ecology. 15(1):71-82
Patterns of sex allocation in bumblebees have been enigmatic and difficult to interpret in either a Fisherian context or in a kinselection perspective. We gathered data on several hundred laboratory-reared colonies of the bumblebee Bombus terrestris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4545248d573933ed2bd11bc471468983
http://hdl.handle.net/10.1093/beheco/arg087
http://hdl.handle.net/10.1093/beheco/arg087
Publikováno v:
Insectes Sociaux. 50:127-133
In pollen-storing bumblebees, the rate at which workers nourish larvae has been proposed to be the main factor influencing caste differentiation since workers feed prospective queens more frequently and longer than worker larvae during the last insta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1119dd1d5deea22d197a61b1fbfe358
https://doi.org/10.1007/s00040-003-0639-7
https://doi.org/10.1007/s00040-003-0639-7
Publikováno v:
Physiological Entomology. 26:300-305
Queen-laid eggs of Melipona bees stand upright on their larval food, in part because the upper part of the egg is covered with a water-repellent layer of fatty acids and C21 to C29 hydrocarbons. The lower, wettable portion does not have these materia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6ad351b1c30ef7110bc3c32b9bfe305
https://doi.org/10.1046/j.0307-6962.2001.00249.x
https://doi.org/10.1046/j.0307-6962.2001.00249.x
Publikováno v:
Physiological Entomology. 26:254-259
As in many other stingless bees, Melipona bicolor bicolor Lepeletier (Apidae: Meliponinae) workers lay two morphologically distinct types of eggs: slender ones that have a typical patterned chorion, and larger ones that lack this pattern. In this pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38c110dff998c0c001b3af06bc23efef
https://doi.org/10.1046/j.0307-6962.2001.00241.x
https://doi.org/10.1046/j.0307-6962.2001.00241.x
Publikováno v:
Netherlands Journal of Zoology. 49:251-261
The Dufour’s gland is found closely associated with the sting apparatus of all female hymenopterans, playing multiple roles among bees. In some species of Bombus the gland may be involved in production of nestmate recognition pheromones, but in B.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a172a6e44e0361d0fe92c76a4933c7f
https://doi.org/10.1163/156854299505722
https://doi.org/10.1163/156854299505722