Papers by Francisco S Tortosa
Avian Conservation and Ecology, 2022
Research Square (Research Square), Sep 28, 2022
Bird Conservation International
Olive groves in the Mediterranean basin have undergone a tremendous increase during the last two ... more Olive groves in the Mediterranean basin have undergone a tremendous increase during the last two decades, with most of the new olive groves being planted on arable land. This conversion may affect habitat suitability for steppe birds, which are associated with arable land and other open-land habitats, such as natural pastures. In this work, we evaluate the presence of new olive groves in the distribution of the Great Bustard Otis tarda and the Little Bustard Tetrax tetrax in Southern Spain (the largest olive oil production zone in the world), and we compare the percentage of different land uses in 2000 and 2018 using data provided by the Corine Land Cover. From 2000 to 2018, new olive groves occupied 2.14 and 2.61% of the distribution areas of the Great Bustard and the Little Bustard, respectively. The decrease in arable land and the increase in permanent crops were the main drivers of the landscape composition changes during the study period. The fragmentation index of arable land ...
Frontiers in Marine Science
Fisheries bycatch is a primary driver of population declines in marine megafauna. These captures ... more Fisheries bycatch is a primary driver of population declines in marine megafauna. These captures not only have environmental impacts, they also have economic consequences for fishers such as direct losses when repairing fishing gear. Therefore, evaluating the fishers’ perception of bycatch and comparing it with data from scientific fisheries observers might provide a broader view of the current situation these species face. To do this, we obtained data concerning the bycatch of 1,838 sea turtles between 2008-2018 in the Eastern Pacific Ocean as well as informative surveys from 421 artisanal fishers surveyed in 2020. There is a discrepancy between the bycatch observed and the fishers’ perceptions of it. The observers’ results identified that high rates of incidental capture of sea turtles are associated with the mahi mahi fishery that occurs during winter and is a shallow set fishery using fish as bait. The olive ridley turtle was the main species affected by bycatch. According to th...
European Journal of Entomology, 2021
Animal Biodiversity and Conservation, 2017
Animal Biodiversity and Conservation, 2017
Journal of Coastal Conservation, 2020
Agronomy, 2020
Cover crops can be an effective means to protect soil and reduce risks of erosion in olive groves... more Cover crops can be an effective means to protect soil and reduce risks of erosion in olive groves. However, for this protection to be significant, the vegetation must attain a significant amount of ground cover, which is estimated to be at least 30% during the rainy season. In olive groves on degraded soils, which occupy large surface areas in the olive-growing areas of the Mediterranean region, the establishment of cover crops may be an arduous challenge, particularly in areas with a high density of rabbits. In this study, we have selected two olive orchards with scarce natural vegetation located in Andalusia (southern Spain), in which rabbit populations intensively forage the cover crops, to test whether the self-seeding of an unpalatable species corn chamomile (Anthemis arvensis L.; A. arvensis for short) could achieve sufficient coverage for soil protection, in the year following that in which the broadcast-seeding was carried out for the implementation of cover crops. The hand ...
Journal of Personality and Social Psychology, 2004
A bibliometric analysis of the first 36 years (1965-2000) of the Journal of Personality and Socia... more A bibliometric analysis of the first 36 years (1965-2000) of the Journal of Personality and Social Psychology (JPSP) is presented. The authors analyzed the structure of JPSP on the basis of contents and other aspects related to productivity, such as growth in the number of articles and authors, and "invisible colleges." In 2001, JPSP articles were cited over 23,000 times. An increasing number of older, classic articles are cited, suggesting that there are an accumulating number of citations whose influence endures over time. JPSP articles have grown in length, number of studies included, number of references, and number of authors and have become more international with an increasing proportion of authors from outside the United States.The pattern of findings suggests an increasingly complex and mature science.
Este libro compila una serie de investigaciones donde se destaca la importancia de las competenci... more Este libro compila una serie de investigaciones donde se destaca la importancia de las competencias en la docencia universitaria, como el conjunto de habilidades, conocimientos y actitudes que promuevan un entorno de aprendizaje efectivo, requiriendo que el docente sea más allá de un facilitador de contenidos, un integrador por medio de experiencias cotidianas de la formación del estudiante. Esta compilación recoge los seis mejores trabajos de investigación presentados en el Área de Conocimiento Gestión de los Procesos de la Educación Superior del II Congreso Sociedad del Conocimiento: Retos y Perspectivas de la Universidad Tecnológica ECOTEC.
Resumen del poster presentado a la 10th European Vertebrate Pest Management Conference, celebrada... more Resumen del poster presentado a la 10th European Vertebrate Pest Management Conference, celebrada en Sevilla (Espana) del 21 al 25 de septiembre de 2015.
Animal Biodiversity and Conservation, 2013
European rabbit restocking is one of the most frequent actions in hunting estates and conservatio... more European rabbit restocking is one of the most frequent actions in hunting estates and conservation projects in Spain, France and Portugal where rabbit is a keystone species. The aim of this work was to review current knowledge regarding rabbit restocking in accordance with the IUCN (1998) guidelines for re–introduction in order to identify gaps in knowledge and highlight the techniques that improve the overall success rate. Eight of 17 items selected from these guidelines were identified as partly studied or unknown, including important items such as the management and release of captive–reared wild rabbits, the development of transport and monitoring programs, the application of vaccine programs, and post–release long–term studies. Researchers should therefore concentrate their efforts on bridging these knowledge gaps, and wildlife managers should consider all the factors reviewed herein so as to establish accurate management guidelines for subsequent rabbit restocking programs.
Animal Biodiversity and Conservation, 2014
In recent decades, the abundance and distribution of certain big game species, particularly red d... more In recent decades, the abundance and distribution of certain big game species, particularly red deer (Cervus elaphus) and wild boar (Sus scrofa), have increased in south central Spain as a result of hunting management strategies. The high density of these ungulate species may affect the abundance of epigeous invertebrates. We tested the relationships between big game abundance and biodiversity, taxon richness, the biomass of invertebrates and their frequency on nine hunting estates and in comparison to ungulate exclusion areas. Ungulate exclusion itself affected invertebrate richness, since lower values were found in the open plots, whereas the highest differences in invertebrate diversity between fenced and open plots was found in areas with high wild boar density. Where wild boar densities were high, the number of invertebrates decreased, while where they were low, red deer had a positive effect on invertebrate abundance. Fenced plots thus seemed to provide refuge for invertebrate...
Coral Reefs, 2020
Hard coral coverage contributes to increasing the structural complexity of coral reefs, provides ... more Hard coral coverage contributes to increasing the structural complexity of coral reefs, provides biological resources and drives biological and ecological interactions among reef organisms. Declines in the structural complexity and coral diversity of tropical reefs, due to the influence of anthropogenic activities, have been reported around the world in recent decades; however, coral reefs on the continental coast of Ecuador have been poorly studied. From September 2017 to April 2018, the method of permanent belt transects and quadrats was used to assess the status of coral (percentage of live, dead and fractured coral) to determine the contribution of derelict fishing gear to the process of coral fracture, which causes loss of structural complexity on two marginal coral-rocky reefs in the central coast of Manabi-Ecuador: Perpetuo Socorro and Ureles. Three geomorphological zones [crest (5–7 m depth), slope (7–10 m depth) and bottom (10–13 m depth)] were assessed. Results show that the crest zone in Ureles reef was highly affected by the entanglement of nets compared with Perpetuo Socorro, and identify derelict fishing gear as a key driver in the process of the fracturing and fragmentation of coral. Seasonal and site-associated factors also had a significant effect on the structural complexity of the reef studied. Destruction of coral in the crest zones drastically affects invertebrate and fish communities. We recommend a periodical assessment to measure the loss of structural complexity plus the implementation of a recovery program for the reefs studied that involves the education, active participation and collaboration of artisanal fishermen, governmental organizations and universities.
Spanish Journal of Agricultural Research, 2020
Aim of study: To identify the environmental variables that affect the Cicadomorpha communities an... more Aim of study: To identify the environmental variables that affect the Cicadomorpha communities and the role played by cover crops in olive groves by comparing olive orchards with cover crop to those with bare ground.Area of study: Córdoba, Spain.Material and methods: Two study plots, one with cover crop and the other with bare ground, were delimited in three areas of olives orchards. Three passive samplings (May, June and July) were performed in each study plot to estimate the abundance and the species richness of potential Cicadomorphas vectors of Xylella fastidiosa. In each sampling, eight yellow sticky traps (22 × 35 cm) were randomly distributed in each study plot (n = 144 traps).Main results: The Cicadomorpha communities were mainly affected by landscape variables (such as the total surface and the distance to remnants of natural vegetation) and environmental variables (such as the temperature, moisture or ETo), whereas cover crops played a secondary role in the abundance of th...
Ecological Indicators, 2020
Uploads
Papers by Francisco S Tortosa