Results: 262

Phylogeny of the Trichogramma endosymbiont Wolbachia, an alpha-proteobacteria (Rickettsiae)

Braz. j. biol; 78 (3), 2018
Abstract Wolbachia (Hertig) endosymbionts are extensively studied in a wide range of organisms and are known to be transmitted through the egg cytoplasm to the offsping. Wolbachia may cause several types of reproductive modifications in arthropods. In Trichogramma species, parthenogenesis-inducing Wolbac...

Reproductive dynamics of Lycengraulis grossidens (Clupeiformes: Engraulidae) and Platanichthys platana (Clupeiformes: Clupeidae) in a subtropical coastal lagoon

Braz. j. biol; 78 (3), 2018
Abstract We evaluated the reproductive dynamics of two fish species, Lycengraulis grossidens and Platanichthys platana, in a subtropical freshwater coastal lagoon (Peri Lagoon) in Brazil. Samples were collected from nine sites every two months from June 2008 to April 2012. Different fishing methods were ...

The life cycle of Neotropical ground beetle, Abaris basistriata (Coleoptera: Carabidae) reared on different substrates

Braz. j. biol; 78 (3), 2018
Abstract Carabids are recognized worldwide as biological control agents of agricultural pests. The objective was to compare the life cycle of Abaris basistriata Chaudoir (Coleoptera: Carabidae) on three substrates: soil, fine vermiculite, or paper napkins. The biological cycle of A. basistriata presented...

Detección de Chlamydia abortus en pérdidas reproductivas de bovinos en la provincia de La Pampa, Argentina

Rev. argent. microbiol; 50 (3), 2018
Las pérdidas reproductivas constituyen una causa importante de pérdida económica en el ganado bovino, aunque en más del 50% de los casos la etiología es desconocida. Las especies de la familia Chlamydiaceae han sido asociadas con abortos en bovinos y otras espeChlamydia abortus; cies animales, pero ...

Dilemas bioéticos y jurídicos de la reproducción asistida en la sociedad actual en España

Rev. latinoam. bioét; 18 (1), 2018
Resumen Este trabajo analiza algunos problemas jurídicos y bioéticos que no están resueltos por la legislación aplicable a la reproducción asistida, uno de los campos más controvertidos de la medicina y la biotecnología humana. Se centra especialmente en el ámbito de los nuevos modelos familiares...

Reproductive cycle of Mytella guyanensis (Lamarck, 1819) in a Marine Reserve (RESEX Bay of Iguape), Bahia, Brazil

Braz. j. biol; 78 (2), 2018
Abstract Mytella guyanensis, consumed and commercialized in coastal regions of Brazil, is one of several bivalve species of socioeconomic interest for coastal communities. Besides serving as a source of income and subsistence for these communities, it also contributes to their food security as it is a so...

Reproductive Biology of Varronia curassavica Jacq. (Boraginaceae)

An. acad. bras. ciênc; 90 (1), 2018
ABSTRACT Varronia curassavica, a subshrubby medicinal species associated with restinga in the Atlantic Forest, has been exploited by local people and the pharmaceutical industry. Indeed, restingas have experienced a continuous process of degradation, and thus, with species and ecosystem both at risk, eff...

Fish movement in an Atlantic Forest stream

Neotrop. ichthyol; 16 (1), 2018
Given the importance of fish movement to the dynamics and maintenance of stream dwelling fish communities from the Atlantic Forest, we analysed patterns of fish movement in a coastal stream from Southeastern Brazil, using mark-recapture technique. Displacement distance of each species were presented and ...

Reproductive biology of the eyespot skate Atlantoraja cyclophora (Elasmobranchii: Arhynchobatidae) an endemic species of the Southwestern Atlantic Ocean (34ºS - 42ºS)

Neotrop. ichthyol; 16 (2), 2018
Atlantoraja cyclophoraé uma patim endémica para a plataforma continental do Sudoeste do Oceano Atlântico (22ºS-47ºS) e uma espécie de captura acessória na pesca comercial de arrasto de fundo. As relações morfométricas, o tamanho na maturidade e o ciclo reprodutivo desta espécie foram analisado...

Control humanitario de poblaciones animales. Experiencia Control de gatos de exterior en Bogotá

Introducción: el bienestar animal es un asunto de interés público y político que incluye aspectos científicos, éticos, económicos, y comerciales entre otros; por ello, es multifacético y complejo, y se hace imprescindible sustentar su aplicación en bases científicas y objetivas. Objetivo: la ...