Agriculturally dominated landscapes reduce bee phylogenetic diversity and pollination services
Land-use change threatens global biodiversity and may reshape the tree of life by favoring some lineages over others. Whether phylogenetic diversity loss compromises ecosystem service delivery remains unknown. We address this knowledge gap using extensive genomic, community, and crop datasets to examine relationships among land use, pollinator phylogenetic structure, and crop production.
Varroa destructor feeds primarily on honey bee fat body tissue and not hemolymph
Varroa destructor causes considerable damage to honey bees and subsequently the field of apiculture through just one process: feeding. For five decades, we have believed that these mites consume hemolymph like a tick consumes blood, and that Varroa cause harm primarily by vectoring viruses.
There’s an entire industry built around dieting. Most of its products are intended to help people lose weight, gain muscle, or live longer.
But as the global human population steadily climbs, scientists are scrambling to devise a diet plan that can feed 10 billion people by 2050. www.nationalgeographic.com/commission-report
Abstract: Objective Cardiovascular disease (CVD) is a leading cause of mortality and morbidity in the USA. The role of occupational exposures to chemicals in the development of CVD has rarely been studied even though many agents possess cardiotoxic properties. We therefore evaluated associations of self-reported exposures to organic solvents, metals and pesticides in relation to CVD prevalence among diverse Hispanic/Latino workers. […]
Summary: Public health experts have found there is sufficient evidence that prenatal exposure to widely used insecticides known as organophosphates puts children at risk for neurodevelopmental disorders.
Leading researchers call for a ban on widely used insecticides.
Use of organophosphates has lessened, but risks to early brain development still too high.
In vitro evaluation of genomic damage induced by glyphosate on human lymphocytes
Glyphosate is an important broad-spectrum herbicide used in agriculture and residential areas for weed and vegetation control, respectively. In our study, we analyzed the in vitro clastogenic and/or aneugenic effects of glyphosate by chromosomal aberrations and micronuclei assays. Human lymphocytes were exposed to five glyphosate concentrations: 0.500, 0.100, 0.050, 0.025, and 0.0125 μg/mL, where 0.500 μg/mL represents the established acceptable daily intake value, and the other concentrations were tested in order to establish the genotoxicity threshold for this compound.