Results 181 to 190 of about 16,850 (210)
Some of the next articles are maybe not open access.
Isolation and characterization of chitin from bumblebee (Bombus terrestris)
International Journal of Biological Macromolecules, 2007Insect chitin possessing shell-like structure was prepared from the bumblebee corpses by a consequent treatment with 1M HCl and 1M NaOH. The bumblebee chitin was compared with crustacean (shrimp) chitin by using elemental analysis, Fourier-transform infrared (FT-IR) and solid-state (13)C cross-polarization magic angle spinning nuclear magnetic ...
Juraj, Majtán +5 more
openaire +2 more sources
Insectes Sociaux, 2010
Host–parasite systems are characterised by coevolutionary arms races between host and parasite. Parasites are often the driving force, as they replicate much faster than their hosts and have shorter generation times and larger population sizes, resulting in higher mutation rates per time interval.
S. Erler, H. M. G. Lattorff
openaire +1 more source
Host–parasite systems are characterised by coevolutionary arms races between host and parasite. Parasites are often the driving force, as they replicate much faster than their hosts and have shorter generation times and larger population sizes, resulting in higher mutation rates per time interval.
S. Erler, H. M. G. Lattorff
openaire +1 more source
Development and Reproductive Strategies in Bombus Terrestris Colonies
Behaviour, 1988The development and the reproductive output of 26 Bombus terrestris colonies were investigated. Four important points in colony development are distinguished. These are: a) the start of egg laying by the queen, leading to the beginning of the eusocial phase, the emergence of the first workers; b) the moment which we term the switch point, at which the ...
M.J. Duchateau, H.H.W. Velthuis
openaire +1 more source
2021
???????????????? ?????????? ?????????????????????? ?????????????????????????? ?????????????????????????? ???????????????? ?????????????????? ?????????? (Apis mellifera) ?????? ???????????????????? ???????????????? ?????????????? ???????????? Bombus terrestris ?????? ???????????? ?????????????? ???????????? ???????????????????? ??????????.
openaire +1 more source
???????????????? ?????????? ?????????????????????? ?????????????????????????? ?????????????????????????? ???????????????? ?????????????????? ?????????? (Apis mellifera) ?????? ???????????????????? ???????????????? ?????????????? ???????????? Bombus terrestris ?????? ???????????? ?????????????? ???????????? ???????????????????? ??????????.
openaire +1 more source
Bombus arısı (Bombus terrstris) yetiştiriciliği üzerine araştırmalar
2020Tez (Doktora) -- Çukurova Üniversitesi, Adana, 1997.
openaire +2 more sources
Homing ability of the bumblebee, Bombus terrestris [PDF]
, 2008 The ability of bumblebees to locate their nest site following artificial displacement was investigated. Bombus terrestris (Hymenoptera: Apidae) workers were marked with numbered tags and displaced up to 15 km from their nest. Bees returned from distances of up to 9.8 km, with the proportion of bees returning declining with distance of the release site ...
openaire
The Bombus-terrestris bee optimization algorithm for feature selection
Applied Intelligence, 2022Jafar Tanha, Zahra Zarei
openaire +2 more sources
Acetamipridin Bombus (Bombus terrestris L.) Arılarında Kuluçka Gelişimi Üzerine Etkisi
2020Son yıllarda yabani ve yönetilen arıların populasyonlarının azalışında tarımda kullanılan pestisitlerin etkisinin olduğu bilinmektedir. Acetamiprid etken maddeli bitki koruma ürünleri örtü altı yetiştiricilikte zararlı böceklerle mücadelede yaygın şekilde kullanılmaktadır.
BULUŞ, İsmail Yaşhan +3 more
openaire +1 more source
Multiple stressors interact to impair the performance of bumblebee Bombus terrestris colonies
Journal of Animal Ecology, 2021Ignasi Bartomeus +2 more
exaly