Jose Jimenez

Jose Jimenez
Spanish National Research Council | CSIC · Instituto de Investigación en Recursos Cinegéticos

Engineer, PhD in Environmental Sciences

About

118
Publications
64,668
Reads
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676
Citations
Introduction
Jose Jimenez currently works at the Instituto de Investigación en Recursos Cinegéticos, Spanish National Research Council (CSIC). Jose does research in Ecology. Their main topic study is large carnivores conservation.
Additional affiliations
August 1995 - November 2014
Government of Spain
Position
  • Vocal Asesor

Publications

Publications (118)
Article
Full-text available
• The estimation of abundance of wildlife populations is an essential part of ecological research and monitoring. Spatially explicit capture–recapture (SCR) models are widely used for abundance and density estimation, frequently through individual identification of target species using camera‐trap sampling. • Generalized spatial mark–resight (Gen‐S...
Article
The role that apex predators play in ecosystem functioning, disease regulation and biodiversity maintenance is increasingly debated. However, the positive impacts of their presence in terrestrial ecosystems, particularly in human-dominated landscapes, remain controversial. Limited experimental insights regarding the consequences of apex predator re...
Article
Conventional approaches for the assessment of population abundance or trends are usually based on a single source of information, such as counts or changes in demographic parameters. However, these approaches usually neglect some of the information needed to properly understand the population as a whole, such as assessments of the non‐breeding prop...
Article
Full-text available
1. Spatial capture-recapture (SCR) models have increasingly been used as a basis for combining capture-recapture data types with variable levels of individual identity information to estimate population density and other demographic parameters. Recent examples are the unmarked SCR (or spatial count model), where no individual identities are availab...
Article
Full-text available
The capercaillie Tetrao urogallus - the world's largest grouse- is a circumboreal forest species, which only two remaining populations in Spain: one in the Cantabrian mountains in the west and the other in the Pyrenees further east. Both have shown severe declines, especially in the Cantabrian population, which has recently been classified as “Crit...
Conference Paper
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La nueva revolución en inteligencia artificial, liderada por los modelos de aprendizaje profundo, promete ayudar en multitud de tareas complejas que realizan los humanos. El fototrampeo es una de las herramientas no invasivas más utilizadas para el seguimiento de las especies animales, especialmente para los mamíferos terrestres. Debido a la elevad...
Article
Full-text available
The conservation of animal populations often requires the estimation of population size. Low density and secretive behaviour usually determine scarce data sources and hampers precise abundance estimations of carnivore populations. However, joint analysis of independent scarce data sources in a common modeling framework allows unbiased and precise e...
Book
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Results of the 2019 national census of Pin-tailed Sandgrouse (Pterocles achata) and Black-bellied Sandgrouse (Pterocles orientalis) in Spain
Article
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Many farmland bird populations are declining, and their negative trends are often associated with changes in land-use or farming practices, including the use of agrochemicals. The red-legged partridge (RLP) is a Mediterranean farmland game species of high socio-economic importance whose populations are thought to have declined sharply since the mid...
Article
Full-text available
Knowing the distribution of expanding carnivore species is paramount for identifying and addressing potential human–wildlife conflicts. Occupancy models are useful tools to estimate the distribution and the probability of detection of wildlife species. In this study, we used these models with an empirical dataset to compare different survey methods...
Article
Human activities are changing ecosystems and their trophic structures across the globe and tropical forests are one of the main affected. Large carnivores can have a key role in the maintenance of biodiversity through direct and indirect effects at lower trophic levels, which are the result of predation and competition. In this sense, it is expecte...
Article
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In reintroduction projects, an analysis of dispersal, exploratory movements and territorial behavior of the species concerned offers valuable information on the adaptive management of threatened species and provides a basis for the management of future reintroductions. This is the case of the Iberian lynx (Lynx pardinus) an endemic and endangered s...
Chapter
Full-text available
Transcurridos 14 años del primer censo nacional sobre la especie, en 2019, con la inestimable colaboración de las comunidades autónomas y miles de voluntarios, se ha vuelto a repetir el trabajo que actualiza la situación poblacional de la especie.
Chapter
Full-text available
Transcurridos 14 años del primer censo nacional sobre la especie, en 2019, con la inestimable colaboración de las comunidades autónomas y miles de voluntarios, se ha vuelto a repetir el trabajo que actualiza la situación poblacional de la especie.
Article
Birds striking aircraft cause substantial economic loss worldwide and, more worryingly, human and wildlife fatalities. Designing effective measures to avoid fatal bird strikes requires in‐depth knowledge of the characteristics of this incident type and the flight behaviors of the bird species involved. The characteristics of bird strikes involving...
Article
The jaguar is listed as endangered in Mexico. However, population estimates and conservation initiatives have relied on data obtained from Protected Areas (PA) covered by humid tropical forests of southern Mexico. In this context, the objectives were: 1) to estimate jaguar density for the last wilderness ecoregion of central-western Mexico, 2) quan...
Article
Full-text available
The restoration of Iberian lynx (Lynx pardinus) populations in Extremadura (Southwestern Spain) have been carried out since 2014. One of the measures to ensure the success of this program is to examine the effects that diseases may have on reintroduction. Since diseases may be greatly located at certain sites because of the specific ecological requ...
Chapter
Full-text available
Monitoring of the brown bear population in the Cantabrian Mountains has been undertaken using annual counts of the number of female bears with cubs of the year. However, the increase in the bear population and its distribution range over the past 25 years make applying this technique ever less reliable, above all in the western subpopulation. Conse...
Article
Expertos en derecho ambiental y conservación de especies amenazadas analizan en el siguiente artículo las más de cien sentencias penales dictadas en España a los envenenadores de fauna salvaje. Sus conclusiones y recomendaciones deberían ser tenidas muy en cuenta para mejorar la lucha contra el veneno en el medio natural.
Article
Predation is a key factor in prey population dynamics and could impact population recovery. One common means employed to recover prey populations is that of translocations, but most fail owing to high predation during the early stages. We tested whether conditioned odor aversion can reduce predation during animal translocations by using the predati...
Article
Full-text available
Peters’s squirrel, Sciurus oculatus, is an endemic species distributed in fragmented populations in Central Mexico, which is one of the most densely populated areas in Mexico. No study has estimated the abundance of this species yet, and the effects of human-environmental factors on its abundance and distribution are unknown. Understanding the role...
Article
Reliability of population size and density estimates is one of the most contentious issues when evaluating the conservation status of species. Non-invasive DNA monitoring, combined with spatially explicit capture-recapture approaches (SCR), is recurrently presented as a reliable procedure to achieve accurate, precise and feasible estimates. However...
Article
Full-text available
El uso ilegal del veneno es una de las principales amenazas para la conservación de especies, particularmente de carroñeros y depredadores. Aunque no existe información fiable sobre el impacto real del veneno en España, entre 1992 y 2013 se ha estimado que podrían haber muerto unos 185.000 animales entre aves y mamíferos. A pesar del elevado número...
Article
Full-text available
The predation of young tortoise is considered a major cause of mortality for many tortoise species. The predation by common ravens has been identified as being responsible for significant decreases in tortoise populations. Mediterranean spur-thighed tortoise hatchlings and juveniles in Maamora forest (Morocco) were studied in order to describe the...
Article
Full-text available
Knowledge of population dynamics of threatened species in the wild is key to effective conservation actions. However, at present, there are many examples of endangered animals for which their current situation is unknown, and not just in remote areas and less developed countries. We have explored this topic by studying the paradigmatic case of the...
Article
Translocations are an increasing feature of threatened species conservation plans, but the impact of removal of individuals on the source population is seldom studied. Using computational Population Dynamics P System models and the Pyrenean Bearded Vulture population as a case study we looked at: the effect on the source population of alternative s...
Data
Corrigendum to "Generalized spatial mark–resight models with incomplete identification: An application to red fox density estimates"
Article
Conservation regulations are increasingly recognized as important elements of the available toolkit for effective biodiversity conservation. However, the full integration of evidence when designing these tools is still scarce, which limits the effectiveness of these legal instruments. Increasing concern is emerging on the compatibility between leis...
Article
Lethal interactions between members of the carnivore guild are well represented in literature. In the Iberian lynx, interspecific killing (without prey consumption) of some mesocarnivores, such as the Egyptian mongoose, genet, and red fox, has been reported. Although vaguely documented, evidence suggests feral cats fall victim to interactions with...
Article
Full-text available
Inaccurate estimates of animal populations may lead to flawed management interventions, therefore, it is essential to understand the status and population trend of a species in order to plan its management efficiently. Aerial surveys are considered a useful method for estimating the population size of large conspicuous animals inhabiting large area...
Article
Full-text available
Mediterranean wetlands show remarkable seasonal and annual variations in their hydroperiod, i.e. the period during which they are inundated. Climate change-induced hydroperiod reductions have been shown to affect marshland birds but more studies are needed to understand this process in Mediterranean wetlands. The present study shows the demographic...
Data
This RData file contains all the objects needed for fitting Bayesian Spatial Capture-Recapture models using R and Nimble (June) from the article: Romairone, J., Jimenez, J., Luque-Larena, J. J., & Mougeot, F. (2018). Spatial capture-recapture design and modelling for the study of small mammals. PLoS One, 13(6), e0198766. If any technical advice is...
Data
This RData file contains all the objects needed for fitting Bayesian Spatial Capture-Recapture models using R and Nimble (May) from the article: Romairone, J., Jimenez, J., Luque-Larena, J. J., & Mougeot, F. (2018). Spatial capture-recapture design and modelling for the study of small mammals. PLoS One, 13(6), e0198766. If any technical advice is n...
Article
Full-text available
Spatial capture-recapture modelling (SCR) is a powerful analytical tool to estimate density and derive information on space use and behaviour of elusive animals. Yet, SCR has been seldom applied to the study of ecologically keystone small mammals. Here we highlight its potential and requirements with a case study on common voles (Microtus arvalis)....
Article
Full-text available
Lack of reliable information on the status of species often leads managers to exclusively rely on experiential knowledge, opinions or perceptions, usually derived from personnel associated with natural resource management agencies. Yet, the accuracy of these sources of information remains largely untested. We approached this challenge, which is par...
Article
Full-text available
Decision-makers in wildlife policy require reliable population size estimates to justify interventions, to build acceptance and support in their decisions and, ultimately, to build trust in managing authorities. Traditional capture-recapture approaches present two main shortcomings, namely, the uncertainty in defining the effective sampling area, a...
Data
Supplementary Information from the article: Toward reliable population estimates of wolves by combining spatial capture-recapture models and non-invasive DNA monitoring. It includes simulation studies for SCR estimates under a non-independent Poisson process, scripts and results.