Mostrando ítems 1-10 de 20
Jara Chiquito, Juan Luis (Fecha de defensa: 2023-01-13)
[cat] La vespeta del castanyer, Dryocosmus kuriphilus Yasumatsu (Hymenoptera: Cynipidae) és una espècie cedidògena originària de l'est de la Xina, que ataca tots els arbres del gènere Castanea (Fagaceae) ...
Velasquez Vacca, Adriana (Fecha de defensa: 2023-03-21)
[eng] Hawaiian green turtles Chelonia mydas were heavily exploited for their fat, meat and eggs by the Polynesians in the pre-contact era and continued to be commercially exploited until 1978 when they ...
Gómez Bellver, Carlos Miguel (Fecha de defensa: 2023-03-03)
[cat] OBJECTIUS PRINCIPALS: Les invasions biològiques són la conseqüència principal d'activitats antròpiques que en el cas de les plantes corresponen a diverses causes, principalment: el transport ...
Buchaillot, Maria Luisa (Fecha de defensa: 2023-02-10)
[eng] Personal food security means that they have physical and economic access to sufficient, safe, and quality food. On the other hand, there are three main causes of food insecurity: 1. the high ...
Mosquera Vintimilla, Pablo (Fecha de defensa: 2023-04-19)
[eng] High-mountain tropical lakes in the South American continent are located in the upper part of the Andes range in the equatorial zone (Venezuela, Colombia, Ecuador, Peru, and Bolivia), altitudinally, ...
Ubach Permanyer, Andreu (Fecha de defensa: 2023-01-10)
[eng] The current context of global change is causing many threats to biodiversity worldwide, and the profound and rapid transformations of the environment have led to a severe insect decline. Because ...
Nuez Rodriguez, Ignasi (Fecha de defensa: 2023-06-26)
[spa] Los tiburones y en general los peces condrictios se encuentran entre los organismos más amenazados del planeta, siendo los efectos derivados de la interacción con actividades pesqueras, como la ...
Guardiola Ripoll, Maria (Fecha de defensa: 2023-07-26)
[eng] Schizophrenia is a severe psychiatric disorder affecting around 24 million people worldwide. While we begin to disentangle the biological actors implicated in the origin of the disorder, the precise ...
Badia Boher, Jaume Adrià (Fecha de defensa: 2023-09-15)
[eng] In this thesis, we took advantage of recent advances in the degree of sophistication and flexibility of population models to study the population dynamics and conservation of long-lived species. ...
Hamdane, Yassine (Fecha de defensa: 2023-09-14)
[eng] The main driving force behind crop research is to ensure food security. Climate change, which affects most crops and increases the risk of disease and famine, is addressed in this notion. The Food ...