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Aspects of the natural history of Phrynus barbadensis (Pocock, 1893) (Amblypygi: Phrynidae)

Information on preys and predators of the amblypygids is scarce, largely disperse and sometimes overlooked by the arachnologist. Phrynus barbadensis is a Neotropical whip spider widely distributed, but its natural history is poorly known. The main purpose of this contribution deals with preys, predators, reproductive effort and microhabitat preferences of P. barbadensis in a...

Aspects of the natural history of Phrynus barbadensis (Pocock, 1893) (Amblypygi: Phrynidae)

Information on preys and predators of the amblypygids is scarce, largely disperse and sometimes overlooked by the arachnologist. Phrynus barbadensis is a Neotropical whip spider widely distributed, but its natural history is poorly known. The main purpose of this contribution deals with preys, predators, reproductive effort and microhabitat preferences of P. barbadensis in a...

Up-regulated pathways in response to Deformed Wing Virus infection in Apis mellifera (Hymenoptera: Apidae)

Transmission of viruses by Varroa destructorAnderson & Trueman to bees has been identifed as one of the main threats to Apis mellifera L. colonies. It has also been suggested that synergistic parasite-pathogen interaction mediated by A. mellifera immunity can drive the collapse of honey bee colonies. We analyzed the relationship between deformed wing virus (DWV) viral load and...

Abscisic acid enhances the immune response in Apis mellifera and contributes to the colony fitness

The primary food of adult honey bees (Apis mellifera) is honey prepared by bees from nectar, provided by plants in order to stimulate the bee’s pollination service. Nectar consists of carbohydrates, amino acids and water, as well as other minor compounds whose proportion varies among plant species and whose biological implications in the honey bee physiology require intense...

A new formulation of oxalic acid for Varroa destructor control applied in Apis mellifera colonies in the presence of brood

An organic product based on oxalic acid was evaluated for use in Varroa control under spring/summer climatic conditions in Argentina. The formulation consists of four strips made of cellulose impregnated with a solution based on oxalid acid. Forty-eight beehives were used to assess the product efficacy. Residues of the product were also tested in honey, bees, and wax. Each trial...

Success and failure in human spermatogenesis as revealed by teratozoospermic RNAs

We are coming to appreciate that at fertilization human spermatozoa deliver the paternal genome alongside a suite of structures, proteins and RNAs. Although the role of some of the structures and proteins as requisite elements for early human development has been established, the function of the sperm-delivered RNAs remains a point for discussion. The presence of RNAs in...