The effects of urban land use gradients on wild bee microbiomes

Frontiers in Microbiology, Journal Year: 2022, Volume and Issue: 13

Published: Nov. 17, 2022

Bees and their microbes interact in complex networks which bees form symbiotic relationships with bacteria fungi. Microbial composition abundance affect bee health through nutrition, immunity, fitness. In ever-expanding urban landscapes, land use development changes habitats floral resource availability, thus altering the sources of that wild need to establish microbiome. Here, we implement metabarcoding bacterial 16S fungal ITS regions characterize diversity microbiome 58 small carpenter bees, Ceratina calcarata, across gradients (study area 6,425 km2). By categorizing development, green space, precipitation, temperature variables as indicators habitat city, found can predict microbial diversity. was also vary gradients, certain such Acinetobacter Apilactobacillus overrepresented less locations Penicillium more abundant developed areas. Environmental features may lead differences microbe interactions, co-occurrences between fungi varied percent exemplified by correlation Methylobacterium Sphingomonas being prevalent areas higher development. Surrounding landscapes change landscape alter they have As such, centres should consider impact growing cities on pollinators' protect from effects anthropogenic activities.

Language: Английский

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Environmental Effects on Bee Microbiota

Microbial Ecology, Journal Year: 2023, Volume and Issue: 86(3), P. 1487 - 1498

Published: April 26, 2023

Language: Английский

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Lactobacillus melliventris promotes hive productivity and immune functionality in Bombus terrestris performance in the greenhouse

Insect Science, Journal Year: 2023, Volume and Issue: 31(3), P. 911 - 926

Published: Oct. 13, 2023

Abstract Bumblebees are important pollinators in agricultural ecosystems, but their abundance is declining globally. There an urgent need to protect bumblebee health and pollination services. possess specialized gut microbiota with potential be used as probiotics help defend at‐risk populations. However, evidence for probiotic benefits on bumblebees lacking. Here, we evaluated how supplementation Lactobacillus melliventris isolated from affected the colony development of Bombus terrestris . This native strain colonized robustly persisted long‐term bumblebees, leading a significantly higher quality offspring. Subsequently, tyrosine pathway was upregulated brain fat body, while Wnt mTOR pathways were downregulated. Notably, field experiment greenhouse revealed L. led 2.5‐fold increase survival rate more than 10% number flowers visited, indicating better condition ability conditions. Our study represents first screening use member, , strains hive supplement breeding, which may practical approach improve immunity health.

Language: Английский

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Effects of glyphosate and glyphosate‐based herbicide on learning and memory of the buff‐tailed bumblebee (Bombus terrestris)

Entomologia Experimentalis et Applicata, Journal Year: 2024, Volume and Issue: 172(4), P. 324 - 333

Published: Feb. 3, 2024

Abstract The decline of insect pollinators is a global concern, and the use pesticides has been identified as potential cause for it. Glyphosate‐based herbicides (GBHs) are world's most used pesticides, but until recent years they have claimed to be safe non‐target organisms, such pollinators. Using controlled arena experiments, we investigated effects on learning long‐term memory buff‐tailed bumblebees, Bombus terrestris (L.) (Hymenoptera: Apidae), single field‐realistic dose glyphosate, both in its pure form commercial herbicide (Roundup Gold) containing active ingredient (a.i.) glyphosate other co‐formulants. We found that caused deterioration ability bumblebees 10‐color discrimination experiment; glyphosate‐treated bees discriminated colors over 10% worse than untreated control bees. However, commercially GBH had no observable effect despite fact this contained same amount form. These findings shed light risks associated with agrochemicals previously considered emphasize need comprehensive risk assessments including evaluations cognitive functions Therefore, propose future pesticide testing should incorporate broader ensure safety agricultural landscapes.

Language: Английский

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Antibiotic-altered gut microbiota explain host memory plasticity and disrupt pace-of-life covariation for an aquatic snail.

PubMed, Journal Year: 2024, Volume and Issue: 18(1)

Published: Jan. 8, 2024

Language: Английский

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