Search results for "FALC"

More than 30 years of studies and conservation on lesser kestrel in Europe: where do we will go from there?

2021

Our ecological knowledge on the lesser kestrel is today wide, but the reasons for the research are many and varied, leading to an unequal representation and coverage of the issues addressed, which in addition can be more or less directly related to the conservation of the species. For these reasons, I decided to review all the work done so far, to identify the strengths and weaknesses of research applied to the conservation of this species.

Spatial analysis of lanner falcon habitat preferences: Implications for agro-ecosystems management at landscape scale and raptor conservation

2014

Abstract Sicily hosts the largest European population of the endangered lanner falcon, a poorly known species which needs conservation planning based on habitat preferences. A distribution model on 10 × 10 km cells of Sicily was described using Generalized Linear Models and variation partitioning methods. This modelling approach extracted explanatory factors, pure and joint effects of greatest influence from subsets of variables controlled for multi-collinearity and spatial autocorrelation. Analytical cartography used the environmental favourability function to assess habitat preferences, and the insecurity index estimated the degree to which lanner falcon occupancy is represented in the Na…

Do not disturb the family: roles of colony size and human disturbance in the genetic structure of lesser kestrel

2015

Dispersal and philopatry are fundamental processes influencing the genetic structure and persistence of populations, and might be affected by isolation and habitat perturbation. Habitat degradation induced by human activities could have detrimental consequences on the genetic structure of populations. Therefore, it is crucial to understand the role of human impact in promoting or disrupting the genetic structure. Here, we conducted a genetic analysis using 12 polymorphic microsatellite markers of 70 lesser kestrels Falco naumanni from 10 breeding colonies of two subpopulations in Sicily (southern Italy). Genetic differentiation between the two subpopulations was negligible, and linear dista…

Food for flight: pre-migratory dynamics of the Lesser Kestrel Falco naumanni.

2014

Capsule The post-reproductive stage of Lesser Kestrel is crucial for migratory fuelling and survival. Aims To describe the summer pre-migratory ecology of the Lesser Kestrel in Sicily and review existing data in Southern Europe. Methods We identified the main summer roosts and then made roost counts every ten days from 2010 to 2012. We used case-sensitive modelling procedures to detect biases in counts (generalized linear mixed models), assess the annual population trends from 2005 to 2012 (TRends and Indices for Monitoring); and to model habitat preferences (generalized linear model). We sampled pellets to describe the birds’ diet during the peak month prior to migration. Results We discov…

Context-dependent foraging habitat selection in a farmland raptor along an agricultural intensification gradient

2021

Abstract Gradients of agricultural intensification in agroecosystems may determine uneven resource availability for predators relying on these man-made habitats. In turn, these variations in resource availability may affect predators’ habitat selection patterns, resulting in context-dependent habitat selection. We assessed the effects of gradients of landscape composition and configuration on habitat selection of a colonial farmland bird of prey, the lesser kestrel (Falco naumanni), relying on 76 GPS-tracked nestling-rearing individuals from 10 populations scattered along an agricultural intensification gradient. Analyses were conducted considering two ecological levels of aggregation (the …

Interactive effects of micro- and macro-habitat features on reproductive success of lesser kestrels (Falco naumanni)

2015

La temática mitológica en los epigramas de Falcó

2015

Este trabajo analiza diversos aspectos relacionados con el empleo de la temática mitológica en los epigramas de Jaime Juan Falcó. Entre los dedicados en exclusiva a esta temática se hallan algunos del género ecfrástico y otros de personajes habituales en la poesía de la época como Narciso, Hero y Leandro o el Amor como personificación de Cupido. Por otra parte, en el uso de la mitología como recurso literario, Falcó aplica los términos de la religión pagana a la cristiana. This work analyzes the different ways in which mithology topics are used in the epigrams by Jaime Juan Falcó. In the group of poems dealing merely with it, some compositions belonging to the ekphrastic genre and some othe…

Evidencias de un recubrimiento de magnetita artificial en el armamento íbero

2011

A metallographic study of two pre-roman Iberian arms, affected by a cremation process, revealed the presence of an outer magnetite layer, providing highly protective properties. This layer is extraordinarily tenacious and of very homogeneous thickness, indicating an intentional manufacturing process rather than an accidental formation during the severe heating/cooling cycles the artefact suffered. Up to date, the intentional production of these types of layers has been attributed to a welding process of three different metallic sheets, here an alternative model is proposed, allowing, as could be simulated in the laboratory, the virtually exclusive formation of a magnetite coating.<br>…

Che cosa è la mafia

2016

L'introduzione critica al classico testo di Gaetano Mosca "Che cosa è la mafia" viene messa a confronto con la discussa interpretazione del odierno fenomeno mafioso data dal giudice Giovanni Falcone con la tesi della non esistenza del terzo livello rintracciabile invece nella ottocentesca analisi di Mosca.

Data from: Climate determinants of breeding and wintering ranges of lesser kestrels in Italy and predicted impacts of climate change

2017

Climate warming would theoretically create conditions for the breeding range expansion of pseudo-steppe Mediterranean and long-distance migrant species and provide the possibility for these to overwinter in the same breeding areas. However, contemporary changes in rainfall regimes might have negative effects on the climate suitability and in turn, shrink species potential range. The lesser kestrel Falco naumanni is highly sensitive to rainfall oscillations and has recently extended its Italian breeding range towards northern latitudes and increasing its wintering records. We modelled the effects of temperature and rainfall on current and future climate suitability for lesser kestrels in bot…