5 research outputs found

    First documented case of Tawny Pipit Anthus campestris nest parasitism by common cuckoo Cuculus canorus in Spanish steppes

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    Primo caso documentato di parassitismo di un nido di calandro Anthus campestris da parte del cuculo Cuculus canorus nelle steppe spagnole. Il parassitismo interspecifico della covata o del nido è un comportamento riproduttivo relativamente comune negli uccelli. Attraverso questa tattica riproduttiva, i parassiti di cova evitano i costi associati all’allevamento e al mantenimento dei pulcini deponendo le uova nei nidi della specie ospite nella quale sono specializzati. Il cuculo (Cuculus canorus) segue questa strategia di parassitismo di cova. Le femmine di cuculo depongono le uova nei nidi di altre specie di uccelli, imitando la forma, le dimensioni e il colore delle uova della specie ospite. In questo lavoro riportiamo il primo caso documentato di parassitismo di nidi di calandro da parte del cuculo in habitat steppici spagnoli, dove finora non sono stati registrati casi di parassitismo su questa speci

    Patrones de coexistencia y competencia en una comunidad de paseriformes esteparios: estructura y calidad del hábitat e interacciones bióticas como factores moduladores del nicho ecológico

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    Tesis Doctoral inédita leída en la Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Ecología. Fecha de Lectura: 26-05-2023El desarrollo de las investigaciones ha sido posible gracias a los proyectos “Conservación de la alondra ricotí Chersophilus duponti y su hábitat en Soria (España)” (Life-Ricotí LIFE15-NAT-ES-000802) financiado por la Comisión Europea y “Del pastor al dron: usos tradicionales y nuevas tecnologías para la conservación del hábitat de una especie amenazada, la alondra ricotí Chersophilus duponti” (BBVA-Dron Ricotí) financiado por la Fundación BBVA. Los trabajos se han llevado a cabo gracias al apoyo de la Red de Excelencia REMEDINAL 3CM (S2013/MAE-2719

    Wind farm noise shifts vocalizations of a threatened shrub-steppe passerine

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    Wind energy has experienced a notable development during the last decades, driving new challenges for animal communities. Although bird collisions with wind turbines and spatial displacement due to disturbance have been widely described in the literature, other potential impacts remain unclear. In this study, we addressed the effect of turbine noise on the vocal behaviour of a threatened shrub-steppe passerine highly dependent on acoustic communication, the Dupont's lark Chersophilus duponti. Based on directional recordings of 49 calling and singing males exposed to a gradient of turbine noise level (from 15 up to 51 dBA), we tested for differences in signal diversity, redundancy, and complexity, as well as temporal and spectral characteristics of their vocalizations (particularly the characteristic whistle). Our results unveiled that Dupont's lark males varied the vocal structure when subject to turbine noise, by increasing the probability of emitting more complex whistles (with increased number of notes) and shifting the dominant note (emphasizing the longest and higher-pitched note). In addition, males increased duration and minimum frequency of specific notes of the whistle, while repertoire size and signal redundancy remain constant. To our knowledge, this is the first study reporting multiple and complex responses on the vocal repertoire of animals exposed to turbine noise and unveiling a shift of the dominant note in response to anthropogenic noise in general. These findings suggest that the Dupont's lark exhibits some level of phenotypic plasticity, which might enable the species to cope with noisy environments, although the vocal adjustments observed might have associated costs or alter the functionality of the signal. Future wind energy projects must include fine-scale noise assessments to quantify the consequences of chronic noise exposureThis work was supported by the European Commission (Life-Ricotí project LIFE15-NAT-ES-000802); the BBVA Foundation (BBVA-Dron Ricotí project); and the Community of Madrid (project REMEDINAL-3). DL also acknowledges a postdoctoral grant provided by Community of Madrid (2020-T1/AMB-20636, Programa de Atraccion ´ de Talento investigador, Spain

    Rediscovering Public Administration. Creating images from University

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    Con un enfoque novedoso, este libro recoge las originales aportaciones que un grupo de universitarios españoles han elaborado acerca de la Administración pública en España. El objetivo es transmitir conocimientos desde el ámbito académico a cualquier ciudadano, para alentar la reflexión con criterio nuestras administraciones, sus cambios y sus previsibles dinámicas. También se dirige especialmente al funcionario, que no deja de ser una parte representativa de la sociedad, como una oportunidad para repensar su propia labor y desempeño en los servicios que ofrecen, que garantizan el bienestar de toda la ciudadanía.This book collects, with a novel focus, the original contributions that a group of Spanish university students have produced about Public Administration in Spain. Its goal is to transmit knowledge from the academic sphere to any citizen, in order to encourage a discerning reflection on our administration, its changes and its foreseeable dynamics. It is also aimed to the public servant, who is a representative part of society, as an opportunity to rethink his own labour and performance on the provided services that guarantee the welfare of society.Avec une nouvelle approche, ce livre recueille les contributions originales élaborées par un groupe d’universitaires espagnols à propos de l’Administration Publique en Espagne. Le but est de diffuser des connaissances à n’importe quel citoyen, depuis le cercle académique, afin d’encourager la réflexion sur nos administrations, leurs changements et leurs dynamiques prévisibles. De la même manière, le livre se dirige particulièrement au fonctionnaire, qui n’arrête pas d’être une partie représentative de la société, ainsi qu’une opportunité pour repenser à son propre travail et à son accomplissement sur les services qu’il accomplit, lesquels garantissent le bien-être à toute la citoyenneté.Der vorliegende Text stellt kein Buch zum Gebrauch da, weder in seinem Kern noch in seiner Verfassung, da es beabsichtigt, das positive Konzept der Öffentlichen Verwaltung angesichts von Stereotypen und Vorurteilen wieder herzustellen. Und in der Art der Verfassung, weil aus einer Liste von „vieltalentierten“ Mitteln, oder Bildern, zusammengestellt ist, welche von Studenten erarbeitet wurden, die in der Gesellschaft engagiert sind.Instituto Nacional de Administración PúblicaDepto. de Ciencia Política y de la AdministraciónFac. de Ciencias Políticas y SociologíaTRUEpu
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