Results 271 to 280 of about 27,849 (292)

Isolation and characterization of chitin from bumblebee (Bombus terrestris)

International Journal of Biological Macromolecules, 2007
Insect 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 ...
Ján Gróf, Jozef Šimúth, Katarína Bíliková, Juraj Majtan, Oskar Markovič, Grigorij Kogan   +5 more
openaire   +3 more sources

Bombus arısı (Bombus terrstris) yetiştiriciliği üzerine araştırmalar

2020
Tez (Doktora) -- Çukurova Üniversitesi, Adana, 1997.
openaire   +2 more sources

The Social Structure of Bombus terrestris Colonies: A Review

2019
The honeybee queen maintains her dominance over her workers by producing pheromones which inhibit oogenesis in workers. In bumblebees the level of social organization changes during the lifetime of a colony, which is started by a solitary queen who is able to dominate the firsts of her offspring, but who loses her dominance after some time when many ...
openaire   +2 more sources

Teppeki, selective insecticide about Bombus terrestris.

Communications in agricultural and applied biological sciences, 2010
At a time when a highly controversial debate about the causes of the widespread deaths of bees is taking place all over Europe, which accused the agriculture and its practices with particular reference to the harmful effects of some insecticides, it seems important to point out as another insecticide, the Teppeki, can be selective about bumble and have
FANIGLIULO, Angela, PACELLA, Rosa, COMES, Soccorsa, CRESCENZI, Aniello, FILÌ V.   +4 more
openaire   +1 more source

Juvenile hormone functions as a metabolic rate accelerator in bumble bees (Bombus terrestris)

Hormones and Behavior, 2021
H. Shpigler, Tali Magory Cohen, Einat Ben-Shimol, Roi Ben-Betzalel, E. Levin   +4 more
semanticscholar   +1 more source

Foraging Distances of Bombus muscorum, Bombus lapidarius, and Bombus terrestris (Hymenoptera, Apidae)

Journal of Insect Behavior, 2000
Kerstin Walther-Hellwig, Robert Frankl
openaire   +2 more sources

Acute oral toxicity and risks of four classes of systemic insecticide to the Common Eastern Bumblebee (Bombus impatiens)

Chemosphere, 2022
Ryan Prosser, Nigel E Raine
exaly  

A sequence complementarity-based approach for evaluating off-target transcript knockdown in Bombus terrestris, following ingestion of pest-specific dsRNA

Journal of Pest Science, 2020
C. N. Taning, Shunhua Gui, K. De Schutter, Mona Jahani, N. Castellanos, O. Christiaens, G. Smagghe   +6 more
semanticscholar   +1 more source

Decline of bumble bees (Bombus) in the North American Midwest

Biological Conservation, 2009
Jennifer C Grixti, Sydney A Cameron, Colin Favret   +2 more
exaly  

RNA virus spillover from managed honeybees (Apis mellifera) to wild bumblebees (Bombus spp.)

PLoS ONE, 2019
Samantha A Alger, Alison K Brody
exaly