Results 191 to 200 of about 20,144 (219)

Development and Reproductive Strategies in Bombus Terrestris Colonies

Behaviour, 1988
The 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

?????????????? ?????????????????? ?????????? ?? ?????????????????????????? ????????????????, ?????????????????? ???? ?????????? ?????????? Bombus terrestris ?? ?????????????? ???????????? Apis mellifera

2021
???????????????? ?????????? ?????????????????????? ?????????????????????????? ?????????????????????????? ???????????????? ?????????????????? ?????????? (Apis mellifera) ?????? ???????????????????? ???????????????? ?????????????? ???????????? Bombus terrestris ?????? ???????????? ?????????????? ???????????? ???????????????????? ??????????.
openaire   +1 more source

Bombus arısı (Bombus terrstris) yetiştiriciliği üzerine araştırmalar

2020
Tez (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  

Acetamipridin Bombus (Bombus terrestris L.) Arılarında Kuluçka Gelişimi Üzerine Etkisi

2020
Son 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, UZUN, Asiye, DEMİRÖZER, Ozan, GÖSTERİT, Ayhan   +3 more
openaire   +1 more source

The Bombus-terrestris bee optimization algorithm for feature selection

Applied Intelligence, 2022
Jafar Tanha, Zahra Zarei
openaire   +2 more sources

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

Journal of Insect Behavior, 2000
Kerstin Walther-Hellwig, Robert Frankl
openaire   +1 more source

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   +1 more source

Novel microsatellite DNA loci for Bombus terrestris (Linnaeus, 1758)

Molecular Ecology Resources, 2009
Eckart Stolle, Paul Schmid-Hempel, Robin Moritz   +2 more
exaly  

Intraspecific Variation of the Cephalic Labial Gland Secretions in Bombus terrestris (L.) (Hymenoptera: Apidae)

Chemistry and Biodiversity, 2008
Irena Valterová, Pierre Rasmont, Audrey Coppée   +2 more
exaly