Effects of native forest and human-modified land covers on the accumulation of toxic metals and metalloids in the tropical bee Tetragonisca angustula

Barbosa, Marcela de Matos; Fernandes, Ana Carolina Coelho; Alves, Rafael Souza Cruz; Alves, Denise A.; Barbosa, Fernando; Batista, Bruno Lemos; Ribeiro, Milton Cézar; Carneiro, María Fernanda Hornos

doi:10.1016/j.ecoenv.2021.112147

Cited by 5 publications

(2 citation statements)

References 105 publications

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“…Disturbance and habitat fragmentation caused by human activities had demonstrated negative effects on nest occurrence and species diversity of stingless bee species in Kenya (Kiatoko et al 2017). It was recently shown that land use change increases the amount of toxic metals and metalloids that are bioaccumulated by T. angustula (Barbosa et al 2021). A study by Brown and Albrecht (2001) demonstrated that the species richness of stingless bees, which ranged from 1 to 5 species, is inversely related to distance to the forest and directly related to percent forest cover.…”

Section: Deforestationmentioning

confidence: 99%

The stingless bees (Hymenoptera: Apidae: Meliponini): a review of the current threats to their survival

et al. 2022

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Pollination by insects is an essential service for the conservation of plant biodiversity, since it increases the rate of fertilization of flowers and therefore increases the quality and quantity of seeds and fruits. In tropical regions, native plants depend heavily on stingless bees as pollinators since before the introduction of the European honey bee Apis mellifera. However, like for many other insect species worldwide, anthropogenic actions represent a true threat to stingless bee populations. In this article, we review the works that evaluated the potential negative impacts of human activities on populations of stingless bees. The studies constitute a strong body of evidence that stingless bee populations are at risk of decline around the world due to threats including habitat loss, agrochemicals, competition for resources, climate change, and the introduction of exotic species, including pathogens.

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Section: Deforestationmentioning

confidence: 99%

The stingless bees (Hymenoptera: Apidae: Meliponini): a review of the current threats to their survival

et al. 2022

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“…A dynamic ecosystem that connects upstream and downstream is a sub-watershed (Hadi & Shrestha, 2011;Harini et al, 2016;Rawat et al, 2018). Land use depends on the capability and location of the land (Kurowska et al, 2020;Chen et al, 2021;Matos et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Forest Land Change Assessment of Karang Mumus Sub-Watershed Area

Endayani¹,

Stefano²,

Fathiah³

et al. 2023

jtfm

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Karang Mumus watershed is an important area as a port and gateway to the inland of East Kalimantan, causing the trade sector and water transportation services in this city to be very developed. Traders and immigrants from various regions who came in, stopped by, performed business, and stayed have caused the riverbanks to develop into economic and trade centers. One of the issues in the Karang Mumus sub-watershed is the conversion of forest area to agricultural land. With the improper use of agrotechnology and soil conservation, agricultural operations result in erosion and reduced land yield. This study aims to evaluate the Karang Mumus sub-potential watersheds to support land capability by using the overlay method (geoprocessing) of a geographic information system (GIS) based on criteria for classifying land capabilities and a data analysis approach. The findings revealed that the Karang Mumus sub-land watersheds primarily are categorized as land capacity class III, with a moderate erosion limiting factor that covers 15,864 ha (50.45%). The remaining areas are categorized into land capability classes IV and VI, with class IV having a severe slope limiting factor and class VI having a severe slope limiting factor with a fairly strong soil sensitivity to erosion, covering 8,751.14 ha (27.83%) and 6,829.85 ha (21.72%), respectively. Class III land is recommended for agricultural cultivation, application of appropriate agro-technology, and soil and water conservation. This study recommends that class IV and VI lands area are used for community forests or plantation forests managed by government agencies involved in the forest area stabilization center (BPKH) Region IV Samarinda.

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Sex-specific element accumulation in honey bees (Apis mellifera)

Zarić,

Brodschneider,

Goessler

2024

Environ Sci Pollut Res

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Honey bees are social insects that show division of labor and sexual dimorphism. Female honey bees differentiate in two different castes, queens or worker bees, while males are called drones. Worker bees have different tasks in the hive including collection of food, its processing, caring for brood, protecting the hive, or producing wax. The drones’ only role is to mate with a virgin queen. Many studies have dealt with differences in physiology, behavior, and morphology of workers and drones. This is the first study that demonstrates differences in element accumulation and composition between workers and drones honey bees. Using inductively coupled plasma mass spectrometry, we found that worker honey bees have higher concentrations of most elements analyzed. Drones had higher concentrations of elements essential to bees, Na, P, S, Zn, Cu, and especially Se (2.2 × higher), which is known to be important for sperm quality and fertility in many animals. Until now higher Se content was not observed in male insects. These differences can be attributed to different environmental exposure, reproductive role of drones, but mostly to the food workers and drones consume. Worker bees feed on bee bread, which is rich in minerals. Drones are fed food pre-processed by worker bees.

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Effects of native forest and human-modified land covers on the accumulation of toxic metals and metalloids in the tropical bee Tetragonisca angustula

Cited by 5 publications

References 105 publications

The stingless bees (Hymenoptera: Apidae: Meliponini): a review of the current threats to their survival

The stingless bees (Hymenoptera: Apidae: Meliponini): a review of the current threats to their survival

Forest Land Change Assessment of Karang Mumus Sub-Watershed Area

Sex-specific element accumulation in honey bees (Apis mellifera)

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