Predator foraging behavior in response to perception and learning by its prey: interactions between orb-spinning spiders and stingless bees

1994 ◽  
Vol 35 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Catherine L. Craig
Keyword(s):  
Foraging Behavior ◽  
Stingless Bees ◽  
Predator Foraging

Foraging behavior of individual workers and foraging dynamics of colonies of three Sumatran stingless bees

1985 ◽  
Vol 27 (2) ◽  
pp. 373-392 ◽  
Author(s):  
Tamiji Inoue ◽  
Siti Salmah ◽  
Idrus Abbas ◽  
Erniwati Yusuf
Keyword(s):  
Foraging Behavior ◽  
Stingless Bees

scholarly journals Effects of combined fungicide in stingless bees Scaptotrigona bipunctata

2021 ◽  
Vol 10 (1) ◽  
pp. e53710112029
Author(s):  
Tamiris de Oliveira Diniz ◽  
Naiara Climas Pereira ◽  
Breno Gabriel da Silva ◽  
William Cristian da Silva Pizzaia ◽  
Fernanda Giovana Martins de Oliveira ◽  
...  
Keyword(s):  
Biological Control ◽  
Foraging Behavior ◽  
Chromatin Structure ◽  
Stingless Bees ◽  
Morphological Analysis ◽  
Insect Pests ◽  
Morphological Changes ◽  
Chromatin Condensation ◽  
Brain Cells ◽  
Internal Morphology

Locker is a fungicide used in different crops for biological control, affecting both insect pests and pollinators, such as bees. This study aimed to evaluate toxicity and establish the lethal concentration (LC50) of the fungicide Locker in stingless bees Scaptotrigona bipunctata, investigating changes in brain cells chromatin structure and in midgut morphology. This agrochemical is a combined fungicide that contains three active ingredients: benzimidazole, triazole and strobilurin. Adult forage bees were orally exposed to the following concentrations: 1.7 mg a.i./L; 2.55 mg a.i./L; 3.4 mg a.i./L and 4.25 mg a.i./L of fungicide, and submitted to histochemical and morphological analysis 24, 48 and 72 hours after ingestion. The analysis of S. bipunctata brain cells showed changes in chromatin condensation in all treatments. There were also several morphological changes in the midgut at all concentrations and exposure times. Thus, the fungicide Locker significantly affected bee survival, inducing changes in their internal morphology, which can lead to alterations in their activities, directly interfering in their foraging behavior and survival.

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