Results: 10

Linking toxicity and predation in a venomous arthropod: the case of Tityus fuhrmanni (Scorpiones: Buthidae), a generalist predator scorpion

Background: Scorpions are arachnids that have a generalist diet, which use venom to subdue their prey. The study of their trophic ecology and capture behavior is still limited compared to other organisms, and aspects such as trophic specialization in this group have been little explored. Methods: In or...

The first report of massive infestation with Lipoptena Cervi (Diptera: Hippoboscidae) in Roe Deer (Capreolus Capreolus) in Iasi county, N-E of Romania

Investigations of four roe deer corpses were carried out from May until October 2014, in the Veterinary Forensic Laboratory and in the Parasitic Diseases Clinic, in the Iasi Faculty of Veterinary Medicine. The roe deer were harvested by shooting during the trophy hunting season. The clinical examination ...

Predation of Piaractus mesopotamicus and Oreochromis niloticus larvae by Pantala flavescens with different length classes

Acta sci., Biol. sci; 33 (4), 2011
The experiment had as objective to study the survival of Piaractus mesopotamicus and Oreochromis niloticus larvae subject to predation by Pantala flavescens larvae with different length classes. We used 120 larvae of P. mesopotamicus, 120 of O. niloticus, and also 24 larvae of Pantala flavescens, distrib...

The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays

Neotrop. ichthyol; 7 (3), 2009
One hunting tactic of freshwater rays (Potamotrygonidae), termed "undulate the disc and stir substrate", is here reported to attract cichlids at two sites in the upper Paraná River. The ray species involved in such association are Potamotrygon falkneri and P. motoro, whose activity attract four cichlid ...

Behavior of prey links midwater and demersal piscivorous reef fishes

Neotrop. ichthyol; 7 (1), 2009
Pelagic and demersal guilds of piscivorous fishes are linked by a variety of biological and physical processes that mediate interactions with common prey species. Understanding the behaviors of predators and prey can provide insight into the conditions that make such linkages possible. Here we report on ...

Stirring, charging, and picking: hunting tactics of potamotrygonid rays in the upper Paraná River

Neotrop. ichthyol; 7 (1), 2009
Hunting tactics of potamotrygonid freshwater rays remain unreported under natural conditions. Three main foraging tactics of Potamotrygon falkneri and P. motoro are described here based on underwater observations in the upper Paraná River. Both species displayed similar behaviors. The most common tactic...

Etnografia e manejo de recursos naturais pelos índios Deni, Amazonas, Brasil

Acta amaz; 39 (1), 2009
São raros os estudos envolvendo o uso múltiplo de recursos naturais por populações amazônicas. Este trabalho apresenta um panorama de como os índios Deni, habitantes da região de interflúvio entre dois dos maiores afluentes de água branca da bacia amazônica, os rios Juruá e Purus, utilizam dos...

Educación ambiental para el trópico de Cochabamba: texto del alumno octavo de primaria

El curso de educación medioambiental busca ser un juego, pero al mismo tiempo quiere ser un espacio donde aprendas y conozcas, cada día más, los elementos del medio ambiente donde vives. Vas a aprender mucho acerca de los animales de la región, el provecho de los bosques, ¿por qué hay inundaciones?...

Educación ambiental para el trópico de Cochabamba: texto del alumno sexto de primaria

El presente documento contiene: Introducción a la ecología y sus elementos. Las plantas en la comunidad. El suelo, diferencias según su aspecto físico y químico. Los suelos necesitan nutrientes: plantas, microorganismos, agua, aire y abonos. El agua como medio de subsistencia de los animales, las pl...

Educación ambiental para el trópico de Cochabamba: guía del maestro

Buscando evitar los impactos ambientales a la flora, fauna, suelo y al aire, el presente documento, como parte de las metas establecidas por el Proyecto "Jatun Sach'a" para establecer una cultura forestal en el Trópico de Cochabamba, busca ser un aporte al uso adecuado y a la conservación de sus recurs...