Zobrazeno 1 - 10
of 63
pro vyhledávání: '"H. Randall Hepburn"'
Autor:
Vincent Dietemann, Huo-Qing Zheng, Colleen Hepburn, H Randall Hepburn, Shui-Hua Jin, Robin M Crewe, Sarah E Radloff, Fu-Liang Hu, Christian W W Pirk
Publikováno v:
PLoS ONE, Vol 3, Iss 1, p e1412 (2008)
Contests mediate access to reproductive opportunities in almost all species of animals. An important aspect of the evolution of contests is the reduction of the costs incurred during intra-specific encounters to a minimum. However, escalated fights a
Externí odkaz:
https://doaj.org/article/dc084f80c02f4cc6ac8d669c186d67f7
Publikováno v:
Conservation Genetics Resources. 10:755-760
The cavity-nesting honeybee, Apis nigrocincta, only inhabits the tropical forests of Sulawesi, Sangihe and Mindanao Islands, which are designated as biodiversity hotspots and one of the important areas for biological conservation. In the present stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1eb6a6377c2536be83173bc5a398b07
https://doi.org/10.1007/s12686-017-0922-y
https://doi.org/10.1007/s12686-017-0922-y
Publikováno v:
Journal of Economic Entomology. 106:1958-1963
The content of 10-hydroxy-trans-2-decenoic acid (10-HDA), a marker compound in royal jelly (RJ), is the most important criterion in grading RJ for commercial trade and varies with its origin. To identify the effect of geographical origin on 10-HDA co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::722daa855ebb419ecfc754523d8f2cb6
https://doi.org/10.1603/ec13035
https://doi.org/10.1603/ec13035
Autor:
Ahmed A. Al-Ghamdi, Mebrat Hailu, Mohammad Javed Ansari, H. Randall Hepburn, Nuru Adgaba, Awraris Getachew Shenkute, Sarah E. Radloff
Publikováno v:
Journal of Apicultural Research. 52:184-189
SummaryUnlike honey bees in temperate regions, those in tropical Africa exhibit a strong tendency towards continuous brood rearing rather than storing honey, which is a behaviour that lowers both the productivity and commercial value of African bees.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::39ac7ce9aad242ace3b412b9ef074de0
https://doi.org/10.3896/ibra.1.52.5.02
https://doi.org/10.3896/ibra.1.52.5.02
Autor:
H. Randall Hepburn, Sarah E. Radloff
Publikováno v:
Apidologie
Apidologie, Springer Verlag, 2011, 42 (3), pp.293-300. ⟨10.1007/s13592-011-0024-x⟩
Apidologie, Springer Verlag, 2011, 42 (3), pp.293-300. ⟨10.1007/s13592-011-0024-x⟩
International audience; The geographical distributions of the dwarf honeybees, Apis andreniformis and Apis florea, are defined and mapped. The analysis is based primarily on data in the literature for both species and that on the relevant Quaternary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd2c2404d6f124e3bfd3bbf95037f8c0
https://doi.org/10.1007/s13592-011-0024-x
https://doi.org/10.1007/s13592-011-0024-x
Publikováno v:
Journal of Experimental Biology. 213:1659-1664
SUMMARYComb building in mixed-species colonies of Apis cerana and Apis mellifera was studied. Two types of cell-size foundation were made from the waxes of these species and inserted into mixed colonies headed either by an A. cerana or an A. mellifer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::299018b00cbf25dd2285a34b0f78ba2f
https://doi.org/10.1242/jeb.035626
https://doi.org/10.1242/jeb.035626
Autor:
Ken Tan, Viktor Kuznetsov, Soesilawati Hadisoesilo, H. Randall Hepburn, Michael S. Engel, Sarah E. Radloff, Colleen Hepburn, Stefan Fuchs
Publikováno v:
Apidologie
Apidologie, Springer Verlag, 2010, 41 (6), ⟨10.1051/apido/2010008⟩
Apidologie, Springer Verlag, 2010, 41 (6), ⟨10.1051/apido/2010008⟩
International audience; Multivariate morphometric analyses of Apis cerana Fabricius, 1793 across its full geographical range were performed. Principal components plots did not reveal distinct morphoclusters. Further substructuring of the principal co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c16d893237b9a162c770a9aa363eee03
https://doi.org/10.1051/apido/2010008
https://doi.org/10.1051/apido/2010008
Publikováno v:
Apidologie. 41:129-134
It was determined that 300 Cape workers, Apis mellifera capensis (collected from each of 6 colonies at each of 5 localities about 200 km apart along an 800 km transect in the Western and Eastern Cape Provinces, South Africa) was the sample size requi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53f9e18920ecff11d18809e384b9d03a
https://doi.org/10.1051/apido/2009054
https://doi.org/10.1051/apido/2009054
Autor:
H. Randall Hepburn, Christian Walter Werner Pirk, Ming-Xian Yang, Ken Tan, Sarah E. Radloff, Yushen Yu
Publikováno v:
Apidologie. 40:184-191
We studied the effects of mixed honeybee colonies of Apis mellifera and Apis cerana on the intraspecific and interspecific recognition of female brood stages in the honeybees A. cerana and A. mellifera by transferring brood combs between queenright c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65ca9cc2c8ec6f4cd2a2ada4d6bbdb2f
https://doi.org/10.1051/apido/2009003
https://doi.org/10.1051/apido/2009003
Autor:
Rika Raffiudin, Tri Atmowidi, Stefan Fuchs, Soesilawati Hadisoesilo, H. Randall Hepburn, Wirian Susanti, Colleen Hepburn, Sarah E. Radloff
Publikováno v:
Apidologie. 39:495-503
Multivariate morphometric analyses were performed on workers of Apis koschevnikovi from throughout their distribution in Malaysia, Borneo and Indonesia. Principal component analysis showed one morphocluster comprising bees from Kalimantan Indonesia,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a996acc06a61e391e0b976cc4b508830
https://doi.org/10.1051/apido:2008029
https://doi.org/10.1051/apido:2008029