Gustavo Tejera

Member at Canary Islands' Ornithology and Natural History Group (GOHNIC)

Do islands harbour less diverse disease communities than mainland? The island biogeography theory predicts more diverse communities on mainland than on islands due to more niches, more diverse habitats and availability of greater range of hosts. We compared bacteria prevalences of Campylobacter, Chlamydia and Salmonella in cloacal samples of a smal...

The project MISTIC SEAS I selected common species and Management Units (MUs) in European Macaronesia islands (Azores, Madeira and the Canary Islands) and defined thresholds and environmental targets to help determine the Good Environmental Status (GES) of this MUs following the requirements of the Marine Strategy Framework Directive (MSFD). MISTIC...

La importancia de conocer los impactos y amenazas que puedan afectar a la biodiversidad de un espacio como un Parque Nacional es fundamental para garantizar la conservación del mismo. Para ello se deben establecer medidas de conservación que vayan actualizándose con el tiempo y en el caso del uso del dron, es un claro ejemplo de un elemento nuevo d...

Plastic debris and garbage are the cause of the death of thousands of birds through ingestion, poisoning, starvation or entangled, being the marine species the most affected with this problem (Beaumont et al., 2019). Recently, several research and articles show a growth of bird species that use plastic waste to make their nests (Thompson et al., 2...

Se ha querido integrar la información disponible sobre el uso de los UAS como herramienta de conservación e investigación y los efectos nocivos documentados sobre la avifauna. Conociendo las ventajas y desventajas , y estableciendo como referencia el principio de precaución, se establecen una serie de recomendaciones para volar con seguridad. Con e...

The increase of the tourism and urbanization of vast areas of dunes and beaches has been accompanied by an increase in the level of disturbances to many shorebirds, especially on those species which depend on such habitats to breed. The European Kentish plover (Charadrius alexandrinus) population is declining, also in the Canarian archipelago, one...

El siguiente documento forma parte de la elaboración del Plan de Conservación del Chorlitejo patiengro en Canarias junto a su Memoria Económica. Ambos documentos han sido desarrollados para la Dirección General de Lucha contra el Cambio Climático y Medio Ambiente del Gobierno de Canarias. Una vez finalizado su revisión y evaluación por parte de las...

Insular wildlife is more prone to extinction than their mainland relatives. Thus, a basic understanding of non-natural mortality sources is the first step in the development of conservation management plans. The Canary Islands are an important tourist destination due to their unique climate and rich scenery and biodiversity. During the last few dec...

Model assumptions and validations. (DOCX)

Species, locations (UTM 28R coordinates) and dates of roadkills found on Lanzarote, Canary Islands (November 2010-October 2011). (CSV)

Number of carcasses (roadkills) found on Lanzarote, Canary Islands (November 2010-October 2011). Mortality was estimated by considering carcass removal time (PT) and probability of observer detectability (D) of each species according to bibliography [52]. (DOCX)

Tejera, G. & Rodríguez, B. Quantifying the importance for waterbirds of an urban rocky coastal site in Lanzarote, Canary Islands. Wader Study Group Bull. 121(1): 1–8. We present the results of monthly censuses of waterbirds in a rocky coastal sector of the city of Arrecife, Lanzarote (Canary Islands). Spatial and temporal changes both in species ab...