DUGi

Estudi sobre el comportament i vulnerabilitat a la depredació en Tibicina quadrisignata (cicadidae) en zones cremades i no cremades per l’incendi de l’Alt Empordà 2012

http://dugi.udg.edu/item/http:@@@@hdl.handle.net@@2072@@296456

Tibicina quadrisignata is a specie that lives underground the main part of its life, but at the moment it gets the adult stage it moves to an aerial environment. To achieve reproduction success, the male emits an specific sound to attract females. While they are singing, they exposes themselves to their predators. If life in this situation can be dangerous, when the environment conditions change it can pose a bigger risk to be exposed to the predators. This study has been conducted in a forest area of Alt Emporda burned on 2012, specifically in the municipality of La Jonquera, trying to find out how much a change on their environment could impact the life of grasshoppers, focusing the impact study on the changes of exposure in front their predators. The methodology used in this study has been divided in two parts. The first one consists in collecting data from the field, where some of the members of the Animal Biology Workgroup took pictures and collect data of the specie. And the second part where the author of this study analyze the vulnerability of the Tibicina quadrisignata of being haunted in a burned forest area instead of a common forest area. To do so, the author performed a test where the subjects were asked to find the grasshoppers in a total of 38 pictures taken on different kinds of field environments and gathering statistical times of every subject. The main purpose of this study is to get specific results of the impact and vulnerability of the specie in two completely different environments