Description of the immature stages of Platycoelia puncticollis (Scarabaeidae: Rutelinae: Anoplognathini), DNA barcode and a key for the third instar larvae of the genus

Se describen la larva del tercer estadio y la pupa de Platycoelia puncticollis. Se presentan nuevos datos sobre la biología, genética y distribución de esta especie en Colombia y una clave para la identificación de las larvas del tercer estadio de las especies conocidas para el género Platycoelia Dejean (Coleoptera: Scarabaeidae). Se reporta, por primera vez para la especie, un fragmento de 658 pb del gen COI (código de barras de ADN) mitocondrial.The third instar larvae and the pupae of Platycoelia puncticollis are described. New data on the biology, genetics, and distribution of this species in Colombia are reported and a key to identification of third instar larvae of the known species of Platycoelia Dejean (Coleoptera: Scarabaeidae) is provided. A 658 bp fragment of the mitochondrial COI (DNA barcode) gene is reported for the first time for the species.Fil: Neita Moreno, Jhon. Instituto Alexander Von Humboldt; ColombiaFil: Castro Vargas, María Isabel. Instituto Alexander Von Humboldt; ColombiaFil: Ibarra Polesel, Mario Gabriel. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas y Naturales y Agrimensura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; ArgentinaFil: Pulido Santacruz, Paola. Instituto Alexander Von Humboldt; Colombi

Las cercas vivas : herramienta clave para la conservación de la biodiversidad en un paisaje rural de la cordillera central de los Andes Colombianos

Las cercas vivas son elementos del paisaje rural que han recibido una atención especial por el papel que desempeñan en los sistemas productivos y la función que pueden desarrollar para el mantenimiento de la diversidad nativa de plantas y animales. En este estudio se evaluó el efecto de la composición florística, estructura y contexto espacial en el que se encuentran las cercas vivas, sobre el uso y la riqueza de la comunidad de aves, en el Municipio de Aranzazu, Caldas, Colombia.Live fences are elements in rural landscapes that have received particular attention due to the role that they play in productive systems and their importance for native biodiversity maintenance. The effect of live fence attributes such as floristic composition, structure, and connection to forest fragments on bird species richness and use of fences was evaluated in a study area located in the municipality of Aranzazu, Caldas, Colombia.Biólogo (a)Pregrad

Data from: Extinction as a driver of avian latitudinal diversity gradients

The role of historical factors in driving latitudinal diversity gradients is poorly understood. Here we used an updated global phylogeny of terrestrial birds to test the role of three key historical factors – speciation, extinction and dispersal rates – in generating latitudinal diversity gradients for eight major clades. We fit a model that allows speciation, extinction and dispersal rates to differ, both with latitude and between the New and Old World. Our results consistently support extinction (all clades had lowest extinction where species richness was highest) as a key driver of species richness gradients across each of eight major clades. In contrast, speciation and dispersal rates showed no consistent latitudinal patterns across replicate bird clades, and thus are unlikely to represent general underlying drivers of latitudinal diversity gradients

All_birds_MaxCladeCredTree

Maximum Clade Credibility tree (MCC) from 1000 time-calibrated Bayesian posterior phylogenies of all birds evenly sampled from the Bayesian posterior distribution of trees provided by Jetz et al. (2012). Including the large Neotropical family Furnariidae (Derryberry et al. 2011). MCC tree was calculated in TreeAnnotator v 2.1.3 (implemented in BEAST; Heled and Bouckaert 2013) using median node ages

Bayesian_sample_1000_posterior_trees

Bayesian sample of 1000 posterior phylogenies of all birds evenly sampled from the Bayesian posterior distribution of trees provided by Jetz et al. (2012). Including the large Neotropical family Furnariidae (Derryberry et al. 2011)