Resumo As coleções biológicas são bibliotecas de espécimes que representam a principal fonte de informação sobre a biodiversidade de uma região. Estes arquivos históricos permitem estudos de taxonomia, fisiologia e ecologia, entre outros, que são fundamentais para promover medidas de conservação ambiental. Neste artigo destacamos as coleções entomológicas, que podem ser geradas sem afetar as suas populações. Do mesmo modo, as coleções sem fins científicos são um problema que ameaça os insectos escassos e vistosos. Concluímos que a divulgação e exposição de coleções biológicas é um dos pontos de partida para a conservação da biodiversidade do planeta.

Resumen Las colecciones biológicas son bibliotecas de especímenes que representan la principal fuente de información sobre la biodiversidad de una región. Estos archivos históricos permiten realizar estudios de taxonomía, fisiología y ecología, entre otros, que son fundamentales para impulsar medidas de conservación medioambiental. En este artículo hacemos énfasis en las colecciones entomológicas, que pueden ser generadas sin afectar sus poblaciones. Asimismo, las colecciones sin fines científicos son una problemática que amenaza a vistosos y escasos insectos. Concluimos que la divulgación y exhibición de las colecciones biológicas es uno de los puntos de partida para la conservación de la biodiversidad del planeta.

Abstract Biological collections are libraries of specimens that represent the main source of information about the biodiversity of a region. These historical archives allow us to carry out studies of taxonomy, physiology and ecology, among others, which are fundamental when promoting measures for environmental conservation. In this article we emphasize the entomological collections that can be generated without affecting their populations. Likewise, collections with no scientific purpose are a problem that threatens the attractive and scarce insects. We conclude that the divulgation and exhibition of biological collections is one of the starting points for the conservation of the planet's biodiversity.

Abstract The pampas deer is an endangered species, from which reproductive biology little is known. We aimed to describe and compare the reproductive seasonal patterns of adult and yearling pampas deer stags throughout the year, including morphological traits, testosterone concentration, sperm morphology and cryoresistance pattern changes. Six adult (AS) and five yearling (YS) stags were captured with anesthetic darts once in winter, spring, summer and autumn to study morphological variables, serum testosterone and semen. Adult males were heavier, their neck girth tended to be greater and their testosterone concentration was higher than in YS. Animals were heavier in summer and autumn. Neck girth and testosterone concentration were greater in autumn. Scrotal circumference, testicular volume and gonado-somatic index varied with seasons, decreasing from winter to spring, increasing in summer and remaining in greater values in autumn. Sperm quality had maximum values from summer to winter. However, the cryoresistance ratio of motility score was greater in spring. In conclusion, in the captivity conditions, pampas deer stags seems to present a light seasonal reproductive pattern, with maximum testis size, testosterone secretion and fresh semen quality in autumn. Nevertheless, sperm cryoresistance ratio seemed to remain stable along the year. Although YS were still growing, they achieved similar semen quality than AS.