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Las Palmas de Gran Canaria, Spain

Giunchi D.,University of Pisa | Caccamo C.,University of Pisa | Mori A.,University of Pisa | Fox J.W.,Natural Environment Research Council | And 4 more authors.
Journal of Ornithology | Year: 2015

The identification of year-round geographical ranges and the quantification of the degree of migratory connectivity are fundamental to the successful conservation of migratory bird populations. The Stone-curlew Burhinus oedicnemus is a species of conservation concern in Europe, but its ecology and behaviour are relatively poorly investigated. In particular, its migratory behaviour and the locations of the wintering ranges of most European populations are not known in detail because of a lack of specific studies and the scarcity of ringing recoveries. This study aimed to identify the wintering areas of a Stonecurlew population breeding in the Taro River Regional Park (Parma, northern Italy) by integrating the information obtained from ringing recoveries (n = 2), geolocators (n = 7), and GPS data loggers (n = 2). Furthermore, we compared two approaches to inferring the location of an assumed stationary bird using geolocator data. The different sources were quite coherent, indicating that tagged Stonecurlews did not leave the Mediterranean basin throughout the year and passed the winter in Sardinia or in Tunisia. The recorded wintering sites coincided with areas where breeding (and possibly resident) populations are reported, further emphasising the importance of these areas for the conservation of the species throughout the annual cycle. To our knowledge, our study represents the first thorough analysis performed to uncover the movements of a Mediterranean population of Stone-curlews. Furthermore, it proves the great potential of the tracking devices used in this work to provide information on the migration and nonbreeding sites of elusive species, for which the application of mark–recapture/re-sighting techniques is hindered by profound limitations. © Dt. Ornithologen-Gesellschaft e.V. 2015.

Otero-Ferrer F.,University of Las Palmas de Gran Canaria | Herrera R.,Servicio de Biodiversidad | Lopez A.,University of Santiago de Compostela | Socorro J.,University of Las Palmas de Gran Canaria | And 2 more authors.
Journal of Fish Biology | Year: 2015

Morphometric and genetic analyses confirmed the first records of the West African seahorse Hippocampus algiricus at Gran Canaria Island (north-east Atlantic Ocean), and also the first evidence of interspecific hybridization in seahorses. These results provide additional data on the distribution of H. algiricus that may help to establish future conservation strategies, and uncover a new potential sympatric scenario between H. algiricus and Hippocampus hippocampus. © 2015 The Fisheries Society of the British Isles.

Luque A.A.,Autonomous University of Madrid | Barrajon A.,Nuzas | Remon J.M.,Edif Galia Center | Moreno D.,Edif Galia Center | Moro L.,Servicio de Biodiversidad
Marine Biodiversity Records | Year: 2012

We report the occurrence in the inner fishing port of the Málaga harbour (southern Spain) of an established population of the gastropod Marginella glabella, native on West African Atlantic coasts of Morocco to Senegal and also present at the Canary Islands. This is the third gastropod species with a tropical Atlantic origin found as an established population in the Mediterranean. In spite of its presumably scarce self-dispersal ability due to its direct development, it should be considered an invasive species since it is potentially able to spread out from the area currently occupied and preys voraciously on autochthonous gastropods. It is suggested that this species was introduced during the 1990s as within port discarded by-catch of Málaga-based trawlers, which at that time were fishing on the Atlantic coast off Morocco and the Canary-Saharian bank. © 2012 Marine Biological Association of the United Kingdom.

Martin-Garcia L.,University of La Laguna | Herrera R.,Servicio de Biodiversidad | Moro-Abad L.,Servicio de Biodiversidad | Sangil C.,Smithsonian Tropical Research Institute | Barquin-Diez J.,University of La Laguna
Harmful Algae | Year: 2014

This study presents the ecological niche and the potential distribution of Lyngbya majuscula in the Canary Islands (Spain) based on a bloom of this species on the eastern side of the Canarian Archipelago, in the Marine Reserve of La Graciosa (MRG). This finding represents the first L. majuscula bloom recorded in waters around the Canary Islands and this side of the Atlantic Ocean. The modeled suitability map revealed a potential distribution of L. majuscula in rocky and sandy habitats within shallow and sheltered areas exposed to sedimentation; where L. majuscula blooms had not previously been reported. The L. majuscula bloom detected in MRG is affecting rocky and sandy communities in this area. The possible expansion of these blooms may have harmful effects on important communities in the Canary Islands, including some of high ecological importance such as the Cymodocea nodosa meadows. Results of the L. majuscula distribution model presented here can be used to develop management strategies that avoid or minimize the risk of future bloom occurrences or expansions and their negative effects on the environment. The causes of L. majuscula blooms in MRG are being investigated. © 2014 Elsevier B.V.

Mori A.,University of Pisa | Mori A.,CNR Institute of Ecosystem Study | Baldaccini N.E.,University of Pisa | Baratti M.,CNR Institute of Ecosystem Study | And 9 more authors.
Ibis | Year: 2014

The Eurasian Stone-curlew is a species of conservation concern in Europe. We investigate for the first time the extent of population structure among populations sampled from six geographical areas, representing four subspecies inhabiting the western part of the species' distribution. Neither mitochondrial nor nuclear markers fully supported current subspecies boundaries. However, both markers support significant differentiation of the Canary Island populations from those sampled from the Mediterranean. Further work is needed to establish the taxonomic status of this potentially distinct Macaronesian taxon. More broadly, further genetic research is required to design and implement an effective conservation plan for this species. Ibis © 2014 British Ornithologists' Union1563 July 2014 10.1111/ibi.12164 Short Communication SHORT COMMUNICATIONS © 2014 British Ornithologists' Union.

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