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Guillermo López

Guillermo López
Independent Researcher · Coordination

PhD

About

74
Publications
20,729
Reads
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1,436
Citations
Introduction
Guillermo López currently works at the Coordination, Agencia de Medio Ambiente y Agua de Andalucía. Guillermo does research in Ecology, Parasitology and Virology. Their current project is 'Life+IBERLINCE Recovery of the historical distribution for Iberian Lynx (Lynx pardinus) in Spain and Portugal. (LIFE10NAT/ES/570)'.
Additional affiliations
October 2003 - February 2007
Doñana Biological Station
Position
  • PhD Student
March 2007 - December 2013
Agencia de Medio Ambiente y Agua de Andalucía
Position
  • Iberian lynx LIFE conservation project
January 2004 - January 2013
Education
September 2004 - December 2010
Autonomous University of Madrid
Field of study
  • Biology
September 1996 - September 2003
Complutense University of Madrid
Field of study
  • Veterinary medicine

Publications

Publications (74)
Article
Full-text available
Clinical infection and death caused by bluetongue virus infection has been reported in the Eurasian lynx. Bluetongue virus surveillance in the Iberian lynx revealed widespread and repeated exposure to serotypes 1 and 4 in wild and captive populations of this species. This exposure is possibly from a spillover event from sympatric ruminants.
Article
Full-text available
During the Pleistocene and Holocene, the geographical range of Lynx pardinus included the Iberian Peninsula, southern France and possibly the Italian Peninsula. In historic times, the Iberian lynx distribution was restricted to the dry-summer-climate areas of the Iberian Peninsula. The distribution range between the 16th and the 20th centuries infe...
Article
Full-text available
An ambitious conservation programme to save the Iberian lynx from extinction conducted several reintro-ductions aiming to restore its historical range. The urgency due to the delicate conservation status prompted translocating captive-born and wild individuals, while preventing an early assessment of how both groups combined their space-use and dif...
Article
Full-text available
Feline leukemia virus (FeLV) infection is considered one of the most serious disease threats for the endangered Iberian lynx (Lynx pardinus) Over 14 years (2008–2021), we investigated FeLV infection using point-of-care antigen test and quantitative real-time TaqMan qPCR for provirus detection in blood and tissues in lynxes from Andalusia (Southern...
Chapter
The Iberian lynx (Lynx pardinus) is a trophic-specialist, medium-sized felid that inhabits Spain and Portugal. With less than 100 individuals in 2002, the IUCN listed the species as Critically Endangered. As of then, comprehensive conservation measures were implemented resulting in more than 700 individuals by 2015. The Iberian lynx was then downli...
Article
Full-text available
Hepatitis E virus (HEV) is an emerging zoonotic pathogen in Europe. In the Iberian Peninsula, wild boar (Sus scrofa) is considered the main wildlife reservoir of HEV. This wild ungulate shares habitat and resources with other potential HEV carriers in Iberian Mediterranean ecosystems, although information about the role of such sympatric species in...
Poster
Full-text available
By 2007, the critically endangered Iberian lynx (Lynx pardinus) comprised less than 250 individuals secluded in two nuclei: Doñana and Sierra Morena (Andalusia, Spain). The small and inbred Doñana nucleus suffered devastating consequences from a feline leukaemia virus (FeLV) outbreak that year. The effects of infectious diseases seemed to have a pr...
Article
The creation of new populations through reintroductions in their former range is still necessary for the long-term conservation of the Iberian lynx ( Lynx pardinus ). A large-scale assessment of habitat suitability is a necessary prerequisite for evaluating the possibility of carrying out lynx reintroductions. We modelled habitat suitability for th...
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
The feline immunodeficiency virus is a lentivirus that infects felids worldwide. It may induce a profound immunodysfunction in domestic cats, while wild felids seem less prone to disease. During routine health check monitoring of the endangered Iberian lynx populations, 465 samples from 311 individuals were tested between 2004 and 2017. All of them...
Article
Full-text available
Prediction of Iberian lynx road–mortality in southern Spain: a new approach using the MaxEnt algorithm. In recent years, the Iberian lynx (Lynx pardinus) has experienced a significant increase in the size of its population and in its distribution. The species currently occupies areas in which it had been extinct for decades and new road mortality b...
Article
According to literature, female Iberian lynx (Lynx pardinus) start reproducing at 3 years of age. In more recent years, females breeding at 2 years have been recorded in wild populations. Here, however, we describe the first breeding record for a one-year-old female Iberian lynx. This finding was obtained by camera-trapping data, provided by the ye...
Article
Full-text available
Mountains are well-suited systems to disentangle the factors driving distribution of parasites due to their heterogeneity of climatic and habitat conditions. However, the information about the relative importance of environmental factors governing the distribution of avian haemosporidians on temperate mountains is very limited. The main goal of the...
Article
Full-text available
To document the biochemical and pathologic features of vitamin D intoxication in lynx and to characterize mineral metabolism in healthy lynx, blood samples were obtained from 40 captive lynx that had been receiving excessive (approximately 30 times the recommended dose) vitamin D3 in the diet, and from 29 healthy free ranging lynx. Tissue samples (...
Article
Full-text available
At the turn of the 21st century, <100 Iberian lynx (Lynx pardinus) individuals were found to occur in Southern Spain. Research conducted when the species was that scarce identified Mediterranean scrubland as its breeding habitat. In recent years, the population has grown both in number of individuals and occupied surface. Here, we describe the use...
Article
To mitigate the conflict derived from Iberian lynx (Lynx pardinus) predation on livestock, a prevention and compensation program has been implemented to compensate farmers for poultry and lambs killed by Iberian lynx. Although the majority of the attacks were carried out on poultry, the predation of lambs in extensive flocks leads to greater econom...
Article
Full-text available
El sexado en mano en especies cuyos caracteres sexuales secundarios son prácticamente iguales en ambos sexos (especies monomórficas), puede resultar muy difícil fuera de la época reproductora. Como solución a este problema, y dado que el uso de variables individuales (bien morfométricas, de colorimetría, etc.) puede resultar insuficiente para sexar...
Article
Full-text available
Plumage coloration plays an important role in intra and inter-sexual competition in birds. Many of the yellow, orange, or red colors present in birds are carotenoid dependent. Carotenoids cannot be synthetized de novo by birds and consequently should be obtained through their diet, and access to carotenoids may differ between individuals and specie...
Article
Full-text available
The conservation of endangered species requires accurate data, and knowledge of cause-specific mortality rates is one of the most important issues. In recent years conservation programs for the critically endangered Iberian lynx Lynx pardinus have been developed on the basis of mortality data derived 30 years ago from the small Doñana population. T...
Article
Full-text available
Earlier migration in males than in females is the commonest pattern in migrating passerines and is positively related to size dimorphism and dichromatism. The early arrival of males is a costly trait that may confer reproductive advantages in terms of better territories and/or mates. Given the physiological cost of migration, early migrants are tho...
Article
Full-text available
Most studies on felid depredation of livestock have focused on big cats, and little attention has been paid to this type of conflict in smaller species. The medium-sized Iberian lynx (Lynx pardinus) is not thought to be affected by conflict with humans. However, parallel to an increase in the range of the Iberian lynx in Andújar-Cardeña, an increas...
Article
Full-text available
Recent studies have indicated the existence of an extensive trans-genomic trans-mural co-metabolism between gut microbes and animal hosts that is diet-, host phylogeny- and provenance-influenced. Here, we analyzed the biodiversity at the level of small subunit rRNA gene sequence and the metabolic composition of 18 Mbp of consensus metagenome sequen...
Data
A neighbor-joining tree of the proteobacterial SSU rRNA gene sequences representing the largest clostridia families affiliated with the phylum Firmicutes. (JPG)
Data
A neighbor-joining tree of the proteobacterial SSU rRNA gene sequences affiliated with the phylum Firmicutes. The number of sequences in each identity cluster is specified. (JPG)
Data
Small subunit (SSU) rRNA length distribution identified in raw (unassembled) sequences after direct pyrosequencing of the extracted DNA from lynx fecal samples. Sequences with a length ≥ 200 nucleotides are shown. (JPG)
Data
Overview of the prokaryotic diversity of SSU rRNA tag sequences extracted from the lynx distal gut pyrosequences. (JPG)
Data
A neighbor-joining tree of non-proteobacterial SSU rRNA gene sequences. The number of sequences in each identity cluster is specified. (JPG)
Data
General features of the lynx gut metagenome sequences. (DOC)
Data
Complete information regarding gene prediction and the annotation and taxonomic classification of lynx gut metagenome sequences. Panel ‘General features’ includes, total length of the metagenome, number of hypothetical, conserved hypothetical and functional conserved proteins, number of contigs, ORFs, tRNAs, RNAs, GC content and contig length distr...
Data
Complete information regarding the hierarchical clustering of the lynx gut metagenome and other gut metagenomes based on functional composition. The metagenomes used for comparative analysis are specifically shown. Panel ‘List’ includes the list of metagenomes used for comparative analysis; Panel ‘Subset 2nd Class’ includes the comparative analysis...
Data
Presence of glycoside hydrolases (GHs) in the lynx metagenome sample compared to that found in the metagenomes of other representative herbivores and carnivores. Panel ‘GH distribution’ includes the total number and the relative percentage of different GHs in the metagenomes as well as the putative function associated to each GH protein family (bas...
Data
Location of the Guarrizas Iberian lynx reintroduction area. (JPG)
Poster
Full-text available
The critically endangered Iberian lynx (Lynx pardinus) is considered the most endangered cat in the world (IUCN 2002). During the Twentieth Century, its populations suffered a dramatic decrease, and by 2002 less than 100 individuals survived in two isolated populations in Andalusia (Southern Spain): Sierras de Andújar-Cardeña and Doñana National Pa...
Article
Full-text available
Over the last 2 years surveys of the population of the Iberian lynx Lynx pardinus in Doñana National Park and its surroundings in Spain have produced estimates of a total population of 5–6 in fragmented patches. The population was estimated to be 26 adults in 22–23. Use of camera trapping and other field methods during 24–28 allowed us to determine...
Article
Full-text available
With only about 350 individuals, the Iberian lynx Lynx pardinus continues to be the world’s most endangered felid. Ongoing conservation measures include both in-situ and ex-situ conservation programmes. As part of the first Iberian lynx reintroduction programme, two captive-born individuals were released in the wild in the 2010-2011 season for the...
Conference Paper
Full-text available
A principios del siglo XXI la población de lince ibérico se había quedado reducida a menos de 160 individuos localizados únicamente en 2 poblaciones: Andújar-Cardeña y Doñana. Los principales factores limitantes de la especie eran la escasez de alimento y la elevada mortalidad no natural. En vista de esto, dentro del marco de los programas de conse...
Article
Full-text available
Studies of signalling and sexual selection in birds are increasingly focussing on the regulation of the expression of carotenoid-based ornaments. Brighter coloured ornaments are preferred during mate choice and are thought to signal resistance to parasites, immune capacity and health status. As the colouration of integuments is a dynamic trait, cha...
Article
Full-text available
West Nile virus (WNV) is a neurotropic mosquito-transmitted flavivirus that in Eurasia, Africa, and the Americas primarily affects birds and secondarily other vertebrates. WNV has caused frequent massive episodes of wild bird mortality during its expansion throughout the Americas, and has become a regulating factor in the population dynamics of man...
Article
Full-text available
The Iberian lynx is the most endangered felid species. During winter/spring 2006/7, a feline leukemia virus (FeLV) outbreak of unexpected virulence killed about 2/3 of the infected Iberian lynxes. All FeLV-positive animals were co-infected with feline hemoplasmas. To further characterize the Iberian lynx FeLV strain and evaluate its potential virul...
Article
Full-text available
Sexual selection may play an important role in the evolution of carotenoid-based signals. According to the parasite-mediated sexual selection hypothesis, organism health, parasite resistance and the expression of ornaments are linked. While some studies have analysed the expression of male carotenoid-based ornaments in relation to parasites and imm...
Article
Full-text available
Based on both radio-tracking and photo-trapping data, we present in this paper the first evidence of a non-parental male infanticide in the Iberian lynx. This paper is focused on the behaviour of 3 Iberian lynxes [one resident male (RM); one resident female (RF), and one incoming male (IM)] of the Doñana population, recorded in the spring of 2007....
Article
Full-text available
Tesis doctoral inédita. Universidad Autónoma de Madrid, Facultad de Ciencias, Departamento de Ecología . Fecha de lectura: 29-11-2010
Article
Canine distemper virus (CDV) is a morbillivirus that is the etiological agent of one of the most important viral diseases affecting canids and an expanding range of other carnivores. Using real-time RT-PCR, CDV RNA was detected in organs of an Iberian lynx (Lynx pardinus) found dead in the Doñana National Park, Southwestern Andalusia, Spain. This f...
Article
The Iberian lynx (Lynx pardinus) is considered the most endangered felid species in the world. To date, less than 200 animals remain in the wild. Low numbers and genetic uniformity may contribute to render this species particularly susceptible to infectious diseases. Different pathogens have been identified in Iberian lynxes; including several feli...
Article
Exotic species can have devastating effects on recipient environments and even lead to the outbreak of emergent diseases. We present here several hidden effects that the introduction of goats has had on the Lesser Short-toed Lark, Calandrella rufescens, the commonest native bird inhabiting the island of Fuerteventura (Canary Islands). Vegetation st...
Article
Full-text available
The Iberian lynx (Lynx pardinus) is considered the most endangered felid species in the world. In order to save this species, the Spanish authorities implemented a captive breeding program recruiting lynxes from the wild. In this context, a retrospective survey on prevalence of selected feline pathogens in free-ranging lynxes was initiated. We syst...
Article
Full-text available
The feline leukemia virus (FeLV) is a retrovirus that affects domestic cats all over the world. Its pathogenic effects generally include anemia, immunosuppression or tumors. Dissemination over populations is linked to cat sociality, because the virus is transmitted by direct contact. Although the domestic cat is its common host, FeLV infection has...
Chapter
Full-text available
In order to determine the importance of various infectious agents as potential threats to Iberian lynx conservation, 77 free-ranging animals were screened for presence of 14 feline pathogens between November, 2003 and September, 2007. Evidence of presence of 13 out of 14 infectious agents was found: antibodies to feline calicivirus (FCV) were detec...
Chapter
Full-text available
The Feline Leukemia Virus (FeLV) is a retrovirus that affects domestic cats all over the world, occasionally affecting other felid species. Its pathogenic effects generally include anemia, immunosuppression and tumors. In the Iberian lynx (Lynx pardinus), sporadic contact has been detected since the virus began to be monitored in the population, al...
Chapter
Full-text available
Conservation actions for the endangered Iberian lynx require the integration of expertise and veterinary skills into an interdisciplinary effort. Veterinary actions are overseen by the Iberian Lynx Health Advisory Group (GAAS). These actions involve developing and implementing working protocols (manuals), anesthetizing animals, collecting samples,...
Article
The rapid range expansion of West Nile Virus has raised interest in understanding the population dynamics and dispersal patterns of emerging infectious diseases by wildlife. We analyzed different ecological and evolutionary factors related to West Nile Virus neutralizing antibody prevalence in 72 bird species sampled in southern Spain. Prevalence o...
Article
Full-text available
West Nile virus (WNV) is a bird flavivirus capable of infecting horses and humans that is transmitted by blood-sucking vectors. In Europe and Africa, sporadic infections and outbreaks causing human illness and deaths have occurred and have led to 2 mutually nonexclusive hypotheses regarding the circulation of WNV in Europe: (1) the occurrence of en...
Article
Protozoan coccidia are one of the most common intestinal parasites in birds. Ordinary coccidian detection and quantification techniques have proved to be inaccurate for wild passerines due to the existence of marked oocyst shedding rhythms throughout the day. Previous studies have suggested that these rhythms should be taken into account when analy...
Article
Full-text available
Several studies have highlighted the association between bird song and parasite load, but there is no evidence regarding the relationships among pathogens and alarm or distress calls, which are used in antipredator strategies. We analyzed the association between virus infection and the distress calls of lesser short-toed lark (Calandrella rufescens...
Poster
Full-text available
The Iberian lynx (Lynx pardinus) is classified as critically endangered by the IUCN with only two remaining isolated metapopulations (Doñana and Sierra Morena). Conservation measures implemented to save the species from extinction include the development of safe and efficient anaesthesia protocols for in situ and exsitu situations. The combination...
Article
Young individuals of many passerines undergo a partial moult and replace most of their body feathers and a variable number of coverts and minor wing feathers. In many species, this moult generates perceptible coloration differences, which may act as status signals. This study analyses how the extent of partial moult is related to different estimato...
Article
Full-text available
Between January 2002 and November 2003, 50% (n = 395) of short-toed larks (Calandrella rufescens) and 28% (n = 139) of Berthelot's pipits (Anthus berthelotti) examined on the islands of Fuerteventura and Lanzarote, Canary Islands, had gross lesions compatible with avian pox. However, Spanish sparrows (Passer hispaniolensis, n = 128) and trumpeter f...
Article
Full-text available
In predator–prey interactions, both interactors may benefit from sharing information about prey vulner-ability. We examined the relationship between calls used to discourage close predators (distress calls) and the health condition of the caller to test whether these signals are reliable indicators of prey quality. The structure of calls from captu...

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