Aurelio Martín

• University of La Laguna

Islands tend to have lower species richness, more endemic species, and more pronounced extinction rates than mainland ecosystems. It makes island biota particularly vulnerable to habitat degradation, hunting and invasive species. As a consequence, many species have gone extinct on islands worldwide, especially on oceanic islands. The loss of these...

The common chaffinch (Fringilla coelebs) is the extant avian species with the highest level of differentiation across North Atlantic archipelagos. Such a degree of diversification has been traditionally recognised within the subspecies category, with one endemic subspecies occurring in Azores (F. c. moreletti), one in Madeira (F. c. maderensis), an...

Zusammenfassung Die Gesprenkelte Kanareneidechse, Gallotia intermedia, ist eine für Teneriffa endemische Art. Sie kommt in zwei getrennten Populationen vor, eine im Nordwesten der Insel (in den Klippen von Los Gigantes) und eine in der Nähe der Südspitze (Klippen von Guaza). Die Populationen sind jeweils recht klein, 280 ‒ 460 beziehungsweise circa...

RESUMEN Se recopilan y discuten las referencias históricas y científicas acerca de la pasada pre-sencia de las palomas endémicas Columba bollii y C. junoniae en Gran Canaria. Las eviden-cias indican que ambas palomas habitaron en la isla. Palabras clave: Columba bollii, Columba junoniae, Gran Canaria, Islas Canarias. ABSTRACT Historical and scienti...

We present data to confirm that the island of La Palma harbours the first established feral population of ferrets Mustela furo on the Canary Islands in the Atlantic Ocean. It is not known when the species was introduced but individuals occasionally lost during hunting appear to have become established sometime in the previous 2 decades. Sightings o...

En este trabajo investigamos el estatus, la distribución y la dieta del halcón Falco eleonorae en los islotes al norte de Lanzarote (Islas Canarias), en los meses comprendidos entre julio y octubre de 2000 y 2001. La población canaria actual (≈200 parejas nidificantes) es tres veces superior a la estimada previamente. Sin embargo, su distribución p...

Feral cats are directly responsible for a large percentage of global extinctions, particularly on islands. We reviewed feral cat eradication programs with the intent of providing information for future island conservation actions. Most insular cat introductions date from the nineteenth and twentieth centuries, whereas successful eradication program...

Discovery of a new population of Gallotia intermedia, an endemic, giant lizard from Tenerife (Canary Islands), with important implications for its conservation.

In the last 8 years, we have intensively studied the distribution, habitat, abundance, and breeding of this species. Most of the information supplied on these subjects is completely new. For instance, Columba junoniae has been found on El Hierro island, its Canarian distribution has been mapped to single kilometre squares, nests have been finally f...

We describe the results of a survey of breeding seabirds carried out between 2000 and 2002 in the northern islets of Lanzarote, Canary Islands, with particular emphasis on their status and distribution. For White-faced Storm-petrel Pelagodroma marina, Madeiran Storm-petrel Oceanodroma castro, Lesser Black-backed Gull Larus [fuscus] graellsii and Ye...

Trabajos de restauración ecológica de los islotes del archipiélago Chinijo y el risco de Famara

We describe the external morphology of a new giant lizard found alive on La Gomera Island (Canarian Archipelago), which had been previously described from subfossil bones. Adult size (SVL 135-190 mm) is comparable with the two largest living species (G. simonyi and G. stehlini) of the genus. It differs from the other species of Gallotia in the low...

We describe a new species of Gallotia from Tenerife (Canary Islands). This lizard is intermediate in size between the two smaller (G. atlantica and G. galloti) and the two larger (G. simonyi and G. stehlini) species. Furthermore, it differs from the two similar larger Gallotia in the number of supratemporal scales (mode 4 instead of mode 2), usuall...

Breeding success and nest predation effects on the two Canarian endemic pigeons, Bolle's Laurel Pigeon Columba bollii and White-tailed Laurel Pigeon C. junoniae, were studied during 1995 in five zones of laurel forest on Tenerife Island. Nest predation was the more important cause of nesting failure of both species (88%), but principally affecting...

This paper pré-sents the results of a census of the Canarian Houbara, which covered for the first time the total area occupied by this subspecies. Houbaras were detected only in Fuerteventura, Lanzarote and Graciosa. A total of 379 birds were recorded (33 from vehicles, 16 outside the transects, and a minimum of 330 inside the censusing belt), from...

A Houbara survey of Lanzarote and the small island of Graciosa, during December 1993, resulted in a total count of 146 birds and an estimated total population of about 400 Houbaras. These numbers are higher than found on most previous surveys of Fuerteventura, considered as the main stronghold of this subspecies, and indicate that the Houbara popul...

http://library.wur.nl/WebQuery/groenekennis/512692

Material complementario a la colección de diapositivas sobre la fauna canaria dirigida al profesorado y alumnado de enseñanza media, que incluye un comentario de los principales rasgos ecológicos y biogeográficos de los grandes grupos representativos de la fauna canaria correspondiente a cada fotografía de la mencionada colección. Se estructura en...