Listar Biología Animal - (BA) por fecha de publicación
Mostrando ítems 1-20 de 229
-
Modelling the distribution of Bonelli’s eagle in Spain: implications for conservation planning.
(2005-11-07)Bonelli’s eagle, Hieraaetus fasciatus , has recently suffered a severe population decline and is currently endangered. Spain supports about 70% of the European population. We used stepwise logistic regression on a set of ... -
Nest light environment and potential risk of cuckoo parasitism.
(2007-04-01)Brood parasitism represents a significant cost in reproduction; thus, natural selection should favor the evolution of host defenses, which in turn may favor evolution of more sophisticated techniques by the parasite to ... -
Modelling chorotypes of invasive vertebrates in mainland Spain.
(Wiley, 2007-09-24)We investigated the existence of chorotypes – assemblages of species with similar geographical ranges – of invasive species in a host territory, and their potential use to advocate similar control or management strategies ... -
First Record of a comunal roost of Short-toed Eagles Circaetus gallicus during migration at the Strait of Gibraltar
(2010)Communal roosting and its adaptive function for birds have been widely studied. Both juveniles and adults of social bird species normally concentrate in communal roosts, and the protection of these sites may be of conservation ... -
Finessing atlas data for species distribution models
(Wiley Open Access, 2011)Aim The spatial resolution of species atlases and therefore resulting model predictions are often too coarse for local applications. Collecting distribution data at a finer resolution for large numbers of species requires ... -
Fuzzy chorotypes as a conceptual tool to improve insight into biogeographic patterns.
(Oxford Academic, 2011-10-05)Chorotypes—statistically significant groups of coincident distribution areas—constitute biogeographic units that are fuzzy by nature. This quality has been referred to in the literature but has not been analyzed in depth ... -
Weak relationship between risk assessment studies and recorded mortality in wind farms
(Wiley. British Ecological Society, 2012)Wind farms generate little or no pollution. However, one of their main adverse impacts is bird mortality through collisions with turbine rotors. Environmental impact assessment (EIA) studies have been based on observations ... -
Integrating fuzzy logic and statistics to improve the reliable delimitation of biogeographic regions and transition zones
(2013)This study uses the amphibian species of the Mediterranean basin to develop a consistent procedure based on fuzzy sets with which biogeographic regions and biotic transition zones can be objectively detected and reliably ... -
Estimating how inflated or obscured effects of climate affect forecasted species distribution
(San Francisco, CA : Public Library of Science, 2013-01-11)Climate is one of the main drivers of species distribution. However, as different environmental factors tend to co-vary, the effect of climate cannot be taken at face value, as it may be either inflated or obscured by ... -
Combined Effects of the North Atlantic Oscillation and the Arctic Oscillation on Sea Surface Temperature in the Alborán Sea
(San Francisco, CA : Public Library of Science, 2013-04-18)We explored the possible effects of the North Atlantic Oscillation (NAO) and Arctic Oscillation (AO) on interannual sea surface temperature (SST) variations in the Albora´n Sea, both separately and combined. The probability ... -
New measures for assessing model equilibrium and prediction mismatch in species distribution models.
(Wiley, 2013-06-19)Models based on species distributions are widely used and serve important purposes in ecology, biogeography and conservation. Their continuous predictions of environmental suitability are commonly converted into a binary ... -
Updating known distribution models for forecasting climate change impact on endangered species
(San Francisco, CA : Public Library of Science, 2013-06-28)To plan endangered species conservation and to design adequate management programmes, it is necessary to predict their distributional response to climate change, especially under the current situation of rapid change. ... -
MYOCARDIAL STRUCTURE AND VASCULARIZATION OF THE HEART VENTRICLE IN HOLOCEPHALI: IMPLICATIONS FOR HEART EVOLUTION
(2013-07-25)It has been classically assumed that the ventricle of the primitive vertebrate heart is composed of spongy myocardium, supplied exclusively by oxygen-poor, luminal blood. This idea is on two facts: (1) extant agnathans ... -
The bulbus arteriosus of the holocephalan heart
(2013-07-25)Previous work has shown that the outflow tract of the elasmobranch heart, namely the cardiac portion intercalated between the ventricle and the ventral aorta, does not consist of a single component, the conus arteriosus, ... -
DISTRIBUTION OF PIGMENT CELLS IN THE HEART OF THE RABBITFISH, CHIMAERA MONSTROSA (CONDRICHTHYES: HOLOCEPHALI)
(2013-07-25)The study of extracutaneous cells producing and storing melanin is of interest because it may provide valuable information about the presence of neural crest elements in internal organs and tissues. Here we report, for ... -
Is the bulbus arteriosus of fish homologous to the mamalian intrapericardial thoracic arteries?
(2013-07-26)Two major findings have significantly improved our understanding of the embryology and evolution of the arterial pole of the vertebrate heart (APVH): 1) a new embryonic presumptive cardiac tissue, named second heart field ... -
Pigmentation of the heart in the bichir, polypterus senegalus.
(2013-07-26)The presence of melanin-containing cells in the heart has been documented in tetrapods, but not in fish. It has been even suggested that dark pigmented cells are exclusively associated with hearts having two atria and ... -
The anatomical components of the cardiac outflow tract of the bichir, polypterus senegalus. Evolutionary significance
(2013-07-26)In chondrichthyans and actinopterygians, the outflow tract of the heart, namely, the cardiac portion intercalated between the ventricle and the ventral aorta, consists of two anatomical components: conus arteriosus and ... -
Diversidad morfológica y desarrollo embrionario del tracto de salida cardiaco de los Condrictios
(Universidad de Málaga, Servicio de Publicaciones y Divulgación Científica, 2014)La presente Tesis versa sobre la morfología del tracto de salida del corazón en los Condrictios. En ella se describe la anatomía esta región cardiaca en el galeomorfo (Galeus atlanticus). Asimismo se refieren los principales ... -
Evaluación del efecto barrera de las vías de transporte andaluzas al desplazamiento de la fauna como respuesta al cambio climático
(Rafael Cámara, 2014)Se evaluó el posible efecto barrera de las infraestructuras viarias de Andalucía al desplazamiento de las distribuciones futuras que previsiblemente tendrán que efectuar 20 especies amenazadas de tetrápodos no voladores ...