Carlos Ciudad

Carlos Ciudad
Grupo Tragsatec · Quality Management, Environmental Assessment and Biodiversity

PhD in Biology

About

49
Publications
8,554
Reads
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686
Citations
Introduction
Biologist and GIS analyst. I do research in Ecology, Conservation Biology, GIS and Remote Sensing, Forestry, Landscape Connectivity, Ecotoxicology and Biodiversity Monitoring. I have a broad interest in ecology applied to conservation issues. Teaching experience, environmental fieldwork specialist and author of scientific publications and technical reports.
Additional affiliations
September 2020 - September 2020
Grupo Tragsatec
Position
  • Technician
Description
  • Development of methodologies for species monitoring in the Natura 2000 network.
March 2019 - June 2020
SEO/Birdlife
Position
  • Technician
Description
  • Biologist and GIS analyst in the project LIBERA Science.
December 2014 - December 2018
Universidad Politécnica de Madrid
Position
  • PostDoc Position
Description
  • Researcher in "Forest management to promote brown bear habitat connectivity and availability in the Cantabrian Range: methodological developments and spatially explicit decision-support guidelines " (National R&D&I Plan) and "WOODNET" (BiodivERsA) projects.
Education
February 2014 - April 2015
ESRI España, Universidad Católica San Antonio de Murcia
Field of study
  • Master GIS Online, Geographic Information Science and Cartography
January 2004 - May 2011
Universidad de León
Field of study
  • Ecology
September 1997 - February 2002
IE University
Field of study
  • Biology

Publications

Publications (49)
Article
Full-text available
In this study we have established a monitoring scheme to determine the presence and distribution of widely used pharmaceuticals, pesticides, organophosphate esters (OPEs) and perfluoroalkyl substances (PFAS) in water bodies from Important Bird and Biodiversity Areas (IBAs) from Spain. The monitoring scheme included the georeferenced sampling of roc...
Chapter
https://atlasaves.seo.org/ave/pico-mediano/
Technical Report
Full-text available
El presente informe analiza el grado de relación entre los embalses más importantes de España y la conservación de los espacios protegidos de la Red Natura 2000. Tras analizar 1.092 embalses (en España existen aproximadamente 1.200 grandes embalses), concluimos que el 53% de los mismos está directamente relacionado con la Red Natura 2000, e incluso...
Chapter
Full-text available
JUSTIFICACIÓN CATEGORÍA Y CRITERIOS: Puesto que no se han desarrollado censos específicos, estandarizados y periódicos del pico mediano a nivel estatal, no se cuenta con información básica sobre distribución o abundancia de la especie que permita evaluar adecuadamente su estado de conservación. Los estudios realizados hasta el momento, con diferent...
Technical Report
Full-text available
Este análisis, el primero de sus características realizado en España, supone un primer paso para dimensionar el alcance de la contaminación difusa en el medio natural, tanto la presente como la pasada, y su impacto sobre el conjunto de la biodiversidad. El estudio se enmarca dentro del Proyecto LIBERA que, desde 2017, desarrolla SEO/BirdLife en a...
Book
Full-text available
This document, which has been published within the framework of the POCTEFA Habios project, aims to be a reference manual helping practitioners, technicians and planners to conciliate forest activities and the conservation of the Middle Spotted Woodpecker (Dendrocoptes medius). This bird is specialized in mature deciduous and marcescent forests tha...
Article
Full-text available
Connectivity assessments and corridor delineation are key contributions to landscape management and biodiversity conservation. We examined the influence of three potentially crucial factors on the results of connectivity analyses, using the two subpopulations of the endangered brown bear in the Cantabrian Range (NW Spain) as a case study. First, we...
Article
Full-text available
During 2019 and 2020 a sampling campaign to identify microplastics was carried out in 157 streams and rivers in mainland Spain. The sampling was done by applying a sampling methodology developed by HyT, (Hombre y Territorio Association) within the framework of the LIBERA Project, and was concomitant with a pollutant monitoring in IBA (Important Bir...
Article
Ecological theory and recent empirical studies show that the persistence of spatially structured populations – those composed of spatially separated local populations connected by dispersal – may require the maintenance of pools of floaters (nonbreeding but sexually mature individuals) that rescue small local populations from extinction by replacin...
Cover Page
Full-text available
Our woodpecker study on the buffer effect of floaters by reinforcing colonisation has been published by Animal Conservation. Here the cover page and issue information
Book
Full-text available
Restrictions and active measures to enhance Middle-spotted Woodpecker conservation and minimise impact from forestry activities.
Technical Report
Full-text available
Protocolo metodológico para la planificación, la toma de muestras, el análisis y la identificación de microplásticos en ríos. Desarrollado dentro del convenio de la Asociación Hombre y Territorio (HyT) con el proyecto LIBERA de SEO/BirdLife en alianza con Ecoembes.
Article
Full-text available
Monitoring forest–agriculture mosaics is crucial for understanding landscape heterogeneity and managing biodiversity. Mapping these mosaics from remotely sensed imagery remains challenging, since ecological gradients from forested to agricultural areas make characterizing vegetation more difficult. The recent synthetic aperture radar (SAR) Sentinel...
Article
Full-text available
Los estudios de selección de recursos aportan gran cantidad de información sobre el comportamiento de los animales y su relación con el territorio. Son capaces de identificar cómo influyen diferentes factores ecológicos (como las cubiertas y usos del suelo) sobre los animales; es decir, permiten inferir qué prefieren o qué los beneficia en mayor me...
Article
Full-text available
Habitat selection models for woodland species usually consider forest attributes derived from land cover maps, such as an area covered by forests or distance to forest edge, but canopy cover is less frequently used as a predictor. We evaluated the effect of including forest canopy cover data in habitat selection models for woodland species using th...
Article
Full-text available
The conservation or creation of ecological corridors is a key to support species persistence in fragmented landscapes. However, little guidance exists on where to concentrate the restoration measures to improve corridor quality and functionality. Focusing on the emblematic Iberian lynx Lynx pardinus as the target species, and using a resistance sur...
Poster
Full-text available
Movement ecology has shown to be a raising discipline that can provide a better understanding of multiple ecological processes, from individual foraging decisions to dispersal or migration. However, while recent technical advances have led to a plethora of migration studies, the use of detailed movements of individuals on natal dispersal – i.e., a...
Article
Full-text available
Los esfuerzos de conservación sobre las poblaciones del amenazado lince ibérico (Lynx pardinus) y la reintroducción de ejemplares para expandir las poblaciones hacia sus áreas de distribución histórica hacen necesario evaluar la potencialidad del territorio para albergar poblaciones estables y para facilitar el movimiento de individuos entre ellas....
Chapter
Full-text available
Update. A comprehensive review of the natural history of the Middle Spotted Woodpecker Dendropicos medius in Spain.
Article
The high extinction risk of small populations is commonly explained by reductions in fecundity and breeder survival associated with demographic and environmental stochasticity. However, ecological theory suggests that population extinctions may also arise from reductions in the number of floaters able to replace the lost breeders. This can be parti...
Article
Spatial resolution of environmental data may influence the results of habitat selection models. As high-resolution data are usually expensive, an assessment of their contribution to the reliability of habitat models is of interest for both researchers and managers. We evaluated how vegetation cover datasets of different spatial resolutions influenc...
Article
Full-text available
Context Multi-scale approaches to habitat modeling have been shown to provide more accurate understanding and predictions of species-habitat associations. It remains however unexplored how spatial and temporal variations in habitat use may affect multi-scale habitat modeling. Objectives We aimed at assessing how seasonal and temporal differences in...
Article
Cavity shortage limits secondary cavity-nesting birds (SCN) assemblages in intensively-managed forests with few cavities, but whether cavity availability limits SCN in cavity-rich forests remains unclear. To address this issue, we used a replicated before-after-control-impact design in which the availability of cavities was experimentally reduced a...
Article
Despite extensive research on the effects of habitat fragmentation, the ecological mechanisms underlying colonization and extinction processes are poorly known, but knowledge of these mechanisms is essential to understanding the distribution and persistence of populations in fragmented habitats. We examined these mechanisms through multiseason occu...
Article
Full-text available
Secondary cavity-nesting birds (SCN), which cannot create their own breeding cavities, are expected to be influenced by habitat alteration caused by forest management practices, but the mechanisms underlying the distribution pattern of SCN subjected to different management systems are poorly known. To improve our knowledge on these mechanisms, we e...
Article
Despite its relevance for the persistence of populations, the ecological mechanisms underlying habitat use decisions of juvenile birds are poorly understood. We examined postfledging habitat selection of radio-tracked juvenile middle spotted woodpeckers Dendrocopos medius at multiple hierarchically-nested spatial scales in NW Spain. At the landscap...
Article
Twelve polymorphic microsatellite loci were developed for Dendrocopos medius. Polymorphism was assessed for 27 individuals from the southwesternmost population of this woodpecker species. The number of alleles per locus ranged from three to seven, with observed heterozygosity values from 0.444 to 0.852. Genotypic frequencies conformed to Hardy-Wein...
Article
Full-text available
We examined the demographic response of Middle Spotted Woodpeckers (Dendrocopos medius) to habitat fragmentation in an 880-km(2) study area in the Cantabrian Mountains (northwest Spain), 2000-2005. We used a set of reproductive parameters to examine 26-72 nests in 10-14 habitat patches. Fifty-nine of 72 nests (81.9%) were successful (i.e., at least...
Article
Despite its relevance for the dynamics of populations, the ecological mechanisms underlying juvenile and adult survival are poorly known in most bird species. This study focuses on the effect of habitat fragmentation on early post-fledging, first-year and adult survival of the middle spotted woodpecker Dendrocopus medius by combining data of radio-...
Article
Anthropogenic changes in forest structure threats the persistence of numerous organisms. In Spain, Pyrenean oak (Quercus pyrenaica) forests are mainly subjected to three sylvopastoral management systems which determine variations in the forest structure: (i) "young forests" subjected to frequent disturbance by fires and clear-cuttings; (ii) "Pyrene...

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Projects

Projects (5)
Project
The main objective of this study is to develop a sampling and analytical protocol to determine the impact of contaminants on Important Bird and Biodiversity Areas (IBAs) from Spain. For that purpose we analyze the presence and abundance of macropollutants, microplastics, organic micropollutants and heavy metals related to agricultural, industrial and urban activities in 140 IBAs.
Project
Study the distribution, abundance, habitat selection, survival and dispersal movements of the middle spotted woodpecker (Dendrocoptes medius) and the black woodpecker (Dryocopus martius) in Izki and Aiako Harria Natural Parks (Basque Country, Spain). Propose management actions for the long-term conservation of these woodpecker populations.
Project
This project is based on the use of multi-scale habitat selection models to study the current and potential distribution of endangered carnivores (Iberian lynx -Lynx pardinus- and brown bear - Ursus arctos) and identify strategic corridors for restoring landscape connectivity between populations.