Joan Real

Joan Real
University of Barcelona | UB · Department of Evolutive Biology, Ecology and Environmental Sciences

PHD Biology

About

105
Publications
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Introduction
Skills and Expertise
Additional affiliations
January 2001 - July 2017
University of Barcelona
Position
  • Professor (Full)

Publications

Publications (105)
Article
Full-text available
Globally, vultures are one of the most threatened of all groups of birds. European vulture populations are benefited by several anthropogenic food sources such as landfills. Current European Union directives aim to decrease the amount of organic matter dumped in landfills, reducing this important food source for some vulture species. In this contex...
Article
Full-text available
An unexpected human-wildlife conflict between vultures and livestock has emerged in Europe during the last two decades. Farmers attributed changes in vulture behavior, due to food shortages caused by sanitary regulations, to increasing livestock interactions ('vulture attacks'). To disentangle this conflict, we analyzed 683 farmer complaints betwee...
Article
Full-text available
The selection of the many biological indicators described in scientific literature is rarely based on systematic or clear-cut processes, and often takes into account only a single or very few taxa, or even disregards the complex interactions that exist between the components of biodiversity. In certain cases, the particular context of a site–for ex...
Chapter
https://atlasaves.seo.org/ave/buho-real/
Article
Morphometric methods of sex differentiation may be cheap, simple, quick, and reliable alternatives to molecular approaches. However, there are still important uncertainties regarding the use of morphometric methods in birds, particularly regarding their applicability to different populations and environmental conditions. Between 2004 and 2019, we s...
Article
Full-text available
Reintroductions are becoming a popular tool to prevent extinctions, although their overall success rate is low. Assessing the efficiency and cost‐effectiveness of different reintroduction strategies may help identify and promote efficient practices. Captive‐breeding is widely used in animal reintroductions, although concerns have been raised about...
Article
Forestry practices based on fire prevention and biomass acquisition for energetic purposes may have negative effects on biodiversity. To ensure that forest management is compatible with biodiversity conservation, the identification and use of surrogate species such as forest-dwelling raptors is known to be effective. In this study, we analyse nest...
Article
Full-text available
Reducing greenhouse gas emissions is a global priority. To meet this goal, the Spanish government is planning 89 GW of wind and solar photovoltaic energy in the draft of the National Integrated Energy and Climate Plan (PNIEC) for 2021–2030 (1). Despite the Spanish government's efforts to prevent a speculative bubble in the secondary market, there a...
Preprint
Understanding the environmental drivers of demographic processes is a prerequisite for providing the evidence-based conservation guidance and management actions required to address management goals at population level. Human activities, to which most species are not adapted, are having an ever-increasing impact on the environment. Most policies and...
Article
Full-text available
Non-natural mortality is a major threat to animal conservation worldwide. Its origins are extremely diverse and include infrastructures that cause animal casualties. Its effects are widely felt and so prioritization criteria are necessary when implementing mitigation actions. Most of the threats causing non-natural mortality have in common the fact...
Article
We monitor pollutant accumulation and investigate associated changes at the physiological level within the population of an obligate avian scavenger, the Egyptian Vulture (Neophron percnopterus), from Catalonia (NE Spain). This population is expanding its range, presumably because of the use of human waste disposal sites as food resource. We hypoth...
Technical Report
En present document hi trobem tot allò referent a les metodologies, les escales de seguiment i els protocols de seguiment específics dels indicadors de la biodiversitat. Cal destacar que aquests són les metodologies i protocols a data de 15 de març i, per tant, poden estar sotmesos a canvis donat que alguns encara no s'han implementat i/o que un co...
Article
Farmland birds have suffered notable declines in Europe in recent decades, mainly due to agricultural intensification and climate change. Organic farming, which has been shown to enhance biodiversity, is increasingly being put into practice in European vineyards. Nevertheless, no previous studies have reported significant positive responses in avia...
Chapter
Full-text available
The pilot Biodiversity Monitoring Centre of Mediterranean Mountains was set up in Sant Llorenç del Munt Nature Park by Barcelona Provincial Council and the University of Barcelona in 2016. Its purpose is to foster long-term biodiversity monitoring using species, habitat and ecological process indicators against a backdrop of local and global change...
Article
Some domestic waste disposal sites (DWDS) accumulate enormous amounts of food that humans discard. This food resource is exploited by different species whose population dynamics have as a result been altered. The effects of feeding on human waste on individual health parameters such as body condition are still unknown. Traditionally, body condition...
Article
Full-text available
Natal or prebreeding dispersal is a key driver of the functioning, dynamics, and evolution of populations. Conditions experienced by individuals during development, that is, rearing conditions, may have serious consequences for the multiple components that shape natal dispersal processes. Rearing conditions vary as a result of differences in parent...
Article
Full-text available
Human activities cause changes to occur in the environment that affect resource availability for wildlife. The increase in the human population of cities has led to a rise in the amount of waste deposited in landfills, installations that have become a new food resource for both pest and threatened species such as vultures. In this study we used sta...
Data
Percentage of the contribution of livestock in the diet of Egyptian Vulture nestlings estimated with Bayesian mixing models (SIMMR). Data of each territorial pair but different year is represented with the same number. (TIF)
Data
Mean ± SD ‰ values of δ13C and δ15N obtained for the Egyptian Vulture nestlings included in Bayesian mixing models. It is specified the number of territory and the number of years that each territory was sampled (n). (DOCX)
Data
Contribution of different food components to the diet of Egyptian Vulture nestlings obtained with conventional diet analysis. (DOCX)
Technical Report
Full-text available
Les àrees d’implementació al Parc Natural de Sant Llorenç del Munt i serra de l’Obac. El Centre de Monitoratge de la Biodiversitat en Muntanyes Mediterrànies
Technical Report
Full-text available
In 2016, the Pilot Centre for the Monitoring of the Biodiversity of Mediterranean Mountains was created in the Natural Park of Sant Llorenç del Munt, promoted by the Diputació de Barcelona and the University of Barcelona. The objective is the promotion of long-term monitoring of biodiversity through indicators of species, habitats and ecological pr...
Article
Full-text available
Human activities provide food resources for animals that are predictable in space and/or time. These resources, sometimes referred to as predictable anthropogenic food subsidies (PAFS), can be either the result of human-generated waste or provided intentionally, sometimes as a conservation measure. Some PAFS, including landfills, are used by common...
Article
Full-text available
Species ranges often change in relation to multiple environmental and demographic factors. Innovative behaviours may affect these changes by facilitating the use of novel habitats, though this idea has been little explored. Here we investigate the importance of behaviour during range change, using a 25-year population expansion of Bonelli’s eagle i...
Article
Full-text available
Animal body condition refers to the health and physiological state of individuals, and multiple parameters have been proposed to quantify this key concept. Food intake is one of the main determinants of individual body condition and much debate has been generated on how diet relates to body condition. We investigated this relationship in free-livin...
Article
Full-text available
Identifying the priority habitats of endangered species is crucial to implementing effective conservation actions. We characterise the key habitats used by Bonelli's Eagle Aquila fasciata, an umbrella and flagship species that is endangered in Mediterranean countries. We radio-tracked 17 breeding individuals (10 males and 7 females) in Catalonia (N...
Article
Full-text available
1. Mortality caused by power lines is a conservation problem for many vulnerable bird species. Many large species are especially threatened by electrocution as they frequently perch on pylons leading to electrocution that typically causes death. Electrocution mitigation measures have been implemented to protect several species; however, a resulting...
Research
Full-text available
Detailed faunistic study of Collserola natural parc in 1986. Write in catalan
Article
Understanding the mechanisms that shape animal population dynamics is of fundamental interest in ecology, evolution and conservation biology. Food supply is an important limiting factor in most animal populations and may have demographic consequences. Optimal foraging theory predicts greater consumption of preferred prey and less diet diversity whe...
Article
Full-text available
The Egyptian Vulture Neophron percnopterus is a threatened species throughout its worldwide range. The Iberian Peninsula holds 50% of its global population, which has declined by 25% over the last 20 years. Despite this negative global trend, an increase in the number of individuals over the last 25 years has been observed in Catalonia, where it ha...
Article
Full-text available
Inter-individual diet variation within populations is likely to have important ecological and evolutionary implications. The diet-fitness relationships at the individual level and the emerging population processes are, however, poorly understood for most avian predators inhabiting complex terrestrial ecosystems. In this study, we use an isotopic ap...
Article
Population viability analysis (PVA) has become a basic tool of current conservation practice. However, if not accounted for properly, the uncertainties inherent to PVA predictions can decrease the reliability of this type of analysis. In the present study, we performed a PVA of the whole western European population (France, Portugal and Spain) of t...
Book
Full-text available
Beech forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of a management of forest habitats handbooks . The manuals compile information about numerous aspects that affect the current status and dynamics of hab...
Book
Full-text available
Pinus pinea forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynamics...
Article
Full-text available
Population viability analysis (PVA) has become a basic tool of current conservation practice. However, if not accounted for properly, the uncertainties inherent to PVA predictions can decrease the reliability of this type of analysis. In the present study, we performed a PVA of the whole western European population (France, Portugal and Spain) of t...
Article
Diet analyses are central to the study of avian trophic ecology, and stable isotope analyses have made an increasing contribution in the last two decades. Few isotopic studies have assessed the diet of raptor species, which are more frequently analysed by conventional diet methods such as pellet analysis. In this study, we compare prey consumption...
Article
Full-text available
1. A long-standing question in ecology is how natural populations respond to a changing environment. Emergent optimal foraging theory-based models for individual variation go beyond the population level and predict how its individuals would respond to disturbances that produce changes in resource availability. 2. Evaluating variations in resource u...
Book
Full-text available
Pinus uncinata forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynam...
Article
Full-text available
Bonelli's Eagle (Aquila fasciata) is one of the most endangered raptor species in Europe due to high adult and subadult mortality rates, habitat loss, and a decrease in populations of its most important prey, European rabbits (Oryctolagus cuniculus) and Red-legged Partridges (Alectoris rufa). During the breeding season of 2008, we studied the diet...
Book
Full-text available
Scots pine forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynamics...
Article
Survival typically contributes most to population trends in long-lived birds and its accurate estimation is therefore vital for population management and conservation. We evaluated the effects of age, territoriality and reproduction on survival in Bonelli’s Eagle Aquila fasciata through multistate capture-mark-recapture analyses on a long-term data...
Article
Survival is a key life-history trait in animals. However, most methods of survival estimation require substantial human and economic investment in the long term, particularly in species occurring in low densities, the case of most endangered species. An alternative to traditional recapture (CR) methods is estimation of adult survival based indirect...
Article
One of the main factors involved in the decline in the European wild rabbit in the Iberian Peninsula is the loss of suitable habitats caused by abandonment of agricultural and grazing activities. Nowadays, Mediterranean landscapes suffer from wildfires that affect extensive areas and produce considerable habitat changes. However, little is known ab...
Book
Full-text available
Pinus nigra subsp. salzmannii forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current s...
Article
Full-text available
ABSTRACT Bird electrocution on power lines is an important conservation problem that affects many endangered species. We surveyed 3,869 pylons in the Barcelona Pre-littoral Mountains (Catalonia, NE Spain) and collected 141 carcasses of electrocuted birds, mainly raptors and corvids. Univariate analysis indicated that metal pylons with pin-type insu...
Article
Full-text available
Power line casualties are considered one of the main causes of mortality in the endangered Bonelli home range use, being reduced in kernel 80%, kernel 95% and MCP respectively to 0.421, 0.114 and 0.032 times in comparison to risk associated to the 50% kernel area. In addition, the risk of collision increased in open habitats (around 1.5 times highe...
Book
Full-text available
Aleppo pine forests. Habitats Management Handbooks. In the framework of a cooperation agreement between the "Diputació de Barcelona" and the "Obra Social de la Caixa" has been carried out the preparation of the management of forest habitats handbooks. The manuals compile information about numerous aspects that affect the current status and dynamics...
Article
Bonelli's Eagle Aquila fasciata is one of the rarest birds of prey in Europe, where it has suffered a significant decline in recent decades. We present information on the home-ranges and spatial parameters of 18 Bonelli's Eagles radiotracked in 2002-2006 in Catalonia (northeast Spain) and describe the home-range probability kernel, distances moved,...
Article
Full-text available
Power line casualties are considered one of the main causes of mortality in the endangered Bonelli's Eagle Hieraaetus fasciatus, although little is known about factors involved in collisions with wires and their consequences at population level. We studied 18 radio-tracked individuals to determine the risk of collision with power lines at two spati...
Article
Full-text available
Recruitment is an essential component of the life history and population dynamics of bird species. We provide comprehensive information on the determinants of territorial recruitment in populations of the endangered Bonelli's Eagle (Aquila fasciata). Field work was based on a long-term study of two Populations located in the northwest of this speci...
Article
Full-text available
Aim To explore the influence of an emerging infectious disease (EID) affecting a prey species on the spatial patterns and temporal shifts in the diet of a predator over a large geographical scale. We reviewed studies on the diet of Bonelli’s eagles (Hieraaetus fasciatus) in order to determine the repercussions of the reduction in the density of its...