Departament d'Ecologia Evolutiva i de la Conducta: Enviaments recents
Ara mostrant els elements 81-99 de 99
Adaptive responses of animals to climate change are most likely insufficient
Biological responses to climate change have been widely documented across taxa and regions, but it remains unclear whether species are maintaining a good match between phenotype and environment, i.e. whether observed trait ...
Diet assessments as a tool to control invasive species: comparison between Monk and Rose-ringed parakeets with stable isotopes
Food is a main limiting factor for most populations. As a consequence, knowledge about the diet of invasive alien species determines the design of control measures. The Monk and Rose-ringed parakeets are two typical species ...
Diet to tissue discrimination factors for the blood and feathers of the monk parakeet (Myiopsitta monachus) and the ring–necked parakeet (Psittacula krameri)
Diet to tissue discrimination factors for the blood and feathers of the monk parakeet (Myiopsitta monachus) and the ring–necked parakeet (Psittacula krameri). Stable isotope analyses (SIAs) have been widely used in recent ...
Do invasive mosquito and bird species alter avian malaria parasite transmission?
Alien mosquito and vertebrate host species may create novel epidemiological scenarios for the transmission of pathogens naturally circulating in the invaded area. The exotic Monk parakeet (Myiopsitta monachus) has established ...
Beak morphology predicts apparent survival of crossbills: due to selective survival or selective dispersal?
Dozens of morphologically differentiated populations, subspecies and species of crossbills (genus Loxia) exist. It has been suggested that this divergence is due to variation in the conifer cones that each population ...
The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae)
Aim Nest building is widespread among animals. Nests may provide receptacles for eggs, developing offspring and the parents, and protect them from adverse environmental conditions. Nests may also indicate the quality of ...
Microsatellite characterisation and sex-typing in two invasive parakeet species, the monk parakeet Myiopsitta monachus and ring-necked parakeet Psittacula krameri
Invasive species can have wide-ranging negative impacts, and an understanding of the process and success of invasions can be vital to determine management strategies, mitigate impacts and predict range expansions of such ...
En memòria de Roser Nos: una breu història d’algú que va estimar i potenciar l’ornitologia
Roser Nos ens ha deixat un rastre poc ortodox de complicitat amb l’ornitologia. Una cerca a les xarxes web no serviria per dimensionar correctament l’impacte que va tenir sobre l’estudi dels ocells. Aquesta breu semblança ...
45 anys d’ornitologia de muntanya i el Grup Bages d’Anellament
En aquest article s’aporten dades històriques sobre l’origen i el tarannà del Grup Bages d’Anellament (GBA) i del paper que aquest ha jugat en l’estudi de l’ornitologia de muntanya. Alhora, completa alguns aspectes sobre ...
La llucareta i els pins: els anys de gran productivitat de la pinassa com a oportunitat per a una reproducció extemporània
Aquest article, a més de mostrar la importància dels pins en el cicle biològic de la llucareta Carduelis citrinella, té com objectiu posar en relleu el paper que té la pinassa Pinus nigra en la hivernada de l’espècie i en ...
Barcelona naturalista: descubriendo la ciudad más allá del cemento
Parada 1: La Estación de Campo de Can Catà del MCNB y los estudios de Ecología Evolutiva, por Joan Carles Senar Parada 2: Érase una vez… la historia geológica de Barcelona, por Iria Díaz-Ontiversos y Yael Díaz-Acha Parada ...
Natural epigenetic variation within and among six subspecies of the house sparrow, Passer domesticus
Epigenetic modifications can respond rapidly to environmental changes and can shape phenotypic variation in accordance with environmental stimuli. One of the most studied epigenetic marks is DNA methylation. In the present ...
Assessing the assessments: evaluation of four impact assessment protocols for invasive alien species
ABSTRACTAimEffective policy and management responses to the multiple threats posedby invasive alien species (IAS) rely on the ability to assess their impacts beforeconclusive empirical evidence is available. A plethora of ...
Cuándo viene el público al museo: ¿cuando quiere o cuando queremos?
El objectivo de este estudio es evaluar la afluencia de visitantes que acuden al Museo de Zooología e Barcelona, intentando conocer: 1. Si existe algun tipo de dinámica en la afluencia del público individual 2. Si la ...
Estimating age‐dependent survival when juveniles resemble females: invasive ring‐necked parakeets as an example
Many species only show sexual dimorphism at the age of maturity, such that juveniles typically resemble females. Under these circumstances, estimating accurate age‐specific demographic parameters is challenging. Here, we ...
Antipredator behavioural compensation of proactive personality trait in male Eurasian siskins
Many animals show behavioural syndromes (i.e. suites of correlated behaviours across multiple situations). These behavioural correlations, however, imply limitations in the behavioural plasticity of individuals when facing ...
Selection based on the size of the black tie of the great tit may be reversed in urban habitats
A standard approach to model how selection shapes phenotypic traits is the analysis of capture–recapture data relating trait variation to survival. Divergent selection, however, has never been analyzed by the capture–recapture ...
