Jose Martin

Jose Martin
Spanish National Research Council | CSIC · Departamento de Ecología Evolutiva - MNCN

Professor

About

424
Publications
67,566
Reads
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12,241
Citations
Additional affiliations
August 2008 - present
Spanish National Research Council
Position
  • Professor
June 2006 - July 2008
Consejo Superior de Investigaciones Científicas - CSIC
Position
  • Researcher
August 2000 - June 2006
Consejo Superior de Investigaciones Científicas - CSIC
Position
  • Research Tenure
Education
October 1982 - June 1987

Publications

Publications (424)
Article
Predation may have profound effects on prey animal phenotypes. Among the different traits considered, the relationship between coloration and antipredatory behaviour has been studied in depth in lizards. However, studies that address the relationships between dorsal patterns and tail coloration with escape behaviour in polymorphic lizards are absen...
Article
Behavioral responses to predation risk are critical for survival but as antipredator behavior is costly, prey animals should flexibly modulate their optimum defensive responses by considering both costs and benefits, which are partly influenced by the individual characteristics of the prey. Turtles have the shell as a morphological structure that m...
Article
Carotenoid-based sexual ornaments are widespread, but the role of carotenoids as honest signalers in the trade-off between coloration and antioxidant protection remains controversial. It has been suggested that the function of carotenoids might not be an antioxidant per se, but that colorful carotenoids may indirectly reflect the levels of nonpigme...
Article
Full-text available
Arid climates are characterized by a summer drought period to which animals seem adapted. However, in some years, the drought can extend for unusually longer periods. Examining the effects of these current extreme weather events on biodiversity can help to understand the effects of climate change, as models predict an increase in drought severity....
Conference Paper
Sexual signals play a key role during sexual selection processes, in particular during mate competition for mates in polygynous species. Through these traits, individuals communicate their ability to overcome successfully agonistic interactions by revealing relevant attributes to maximise their reproductive success. During the rutting season, male...
Article
Dichlorodiphenyltrichloroethane (DDT) is a pesticide that was commonly used for decades worldwide. The use of DDT was banned decades ago in Europe due to its high toxicity and persistence in the environment, bioaccumulation in living organisms and biomagnification through food webs. However, monitoring using both invasive and non‐invasive methods h...
Article
Full-text available
Melanin is the basis of coloration in many animals, and although it is often used in communication, thermoregualtion or camouflage, melanin has many other physiological functions. For example, in polluted habitats, melanin can have a detoxifying function. Melanic coloration would help to sequester in the skin the heavy metals contaminants from insi...
Article
Full-text available
Animal coloration results from pigments, nanostructures, or the cosmetic use of natural products, and plays a central role in social communication. The role of cosmetic coloration has traditionally been focused in scenarios of sexual selection, but it could also take place in other contexts. Here, by using spotless starlings (Sturnus unicolor) as a...
Preprint
Chemical signals play an important role in intraspecific and interspecific communication of many mammals, We described the chemicals found in fresh feces of adult wolves by means of analyses using gas chromatography-mass spectrometry (GC-MS) of samples collected from wild breeding groups. We identified 56 compounds in the feces, mainly heterocyclic...
Article
Full-text available
Soil degradation may have strong negative consequences for soil biodiversity, but these potential effects are understudied and poorly understood. Concentration of nesting seabirds may be a source of soil pollution by heavy metals, which are incorporated into the food chain and may have toxicological effects in vertebrates, especially in fossorial a...
Conference Paper
En mamíferos poligínicos, la señalización juega un papel decisivo en la inversión en el comportamiento sexual, mediando la intensidad de las peleas entre machos y clave durante la elección de pareja por parte de las hembras. Durante la época de celo, los machos de ciervo muestran un parche oscuro visible en el pelaje de la zona ventral. Recientemen...
Article
The species-specific components of animal signals can facilitate species recognition and reduce the risks of mismatching and interbreeding. Nonetheless, empirical evidence for species-specific components in chemical signals is scarce and mostly limited to insect pheromones. Based on the proteinaceous femoral gland secretions of 36 lizard species (L...
Article
Foraging strategies aim to maximize the amount of food obtained while minimizing searching costs. To reduce these costs, animals use different strategies based on the use of personal or social information to exploit food patches. At the same time, the social attraction for food resources could increase competition intensity for them. Prior experien...
Article
Investing in the current reproduction requires diverting energy resources from other metabolic functions, which may compromise future reproduction and lifespan. To solve this trade-off, an individual may consider its labile state to decide how much to invest in current reproduction. We tested experimentally whether the “state quality” of male rock...
Article
Full-text available
Chemical signals in animals stimulate different links and relationships. In lizards, chemical signals play an essential role in reproductive and social communication. Although lizard species inhabit tropical ecosystems in great diversity, the chemical composition of the femoral gland secretions that tropical lizards use for communication is poorly...
Article
Full-text available
To understand the spread of parasite and the persistence of infection in an ecological environment, it is essential to investigate their transmission possibilities. Vertical transmission of pathogens from mother to offspring is a fundamental opportunity, notwithstanding a relatively under-researched topic, especially in wildlife animals. We studied...
Article
The tendency to aggregate during the larval stage is widespread and highly variable among anuran species. Several studies have highlighted the link between tadpole group density and their activity level, confirming that, usually, living in groups brings several antipredator benefits. However, nearly all studies have focused on the average behaviour...
Article
Full-text available
Background In polygynous mammals, signalling may play a decisive role in mating behavior, mediating the intensity of male fights and female mate choice. During the rutting season, male red deer may show a visible dark patch in their ventral fur. Recently, this patch has been suggested to act as a flexible sexual signal, due to its relationships wit...
Article
The uropygial gland of birds produces an oily secretion with different functions, mainly related to plumage protection. In addition, the volatile compounds of this secretion may act as chemical signals that provide information to conspecifics, but it is also possible that those compounds may further attract hematophagous insect vectors such as thos...
Article
Full-text available
When selecting optimal habitats, animals should rely on detecting environmental cues that indicate the suitability of a given site. In fossorial animals, restrictions of the underground environment might limit the opportunities for habitat selection. However, field observations of some fossorial amphisbaenian reptiles indicate that microhabitat occ...
Article
Full-text available
Background The movement and spatial ecology of an animal depends on its morphological and functional adaptations to its environment. In fossorial animals, adaptations to the underground life help to face peculiar ecological challenges, very different from those of epigeal species, but may constrain their movement ability. Methods We made a long-te...
Article
Organisms can gain information about predation risks from their parents, their own personal experience, and their conspecifics and adjust their behavior to alleviate these risks. These different sources of information can, however, provide conflicting information due to spatial and temporal variation of the environment. This raises the question of...
Article
Full-text available
Kin recognition is a phenomenon with an important function in maintaining cohesive social groups in animals. Several studies have examined parent–offspring recognition in species with direct parental care. Few studies have, however, explored parent–offspring recognition in animals that, at best, only show apparent indirect parental care, such as so...
Article
Full-text available
Animals often face situations that require quantity discrimination for decision-making. Differentiating between more and less amounts might be adaptative in different contexts such as in social relationships, navigation, or foraging. However, feeding close to conspecifics might change foraging behavior decisions due to changes in predation risk per...
Article
Full-text available
Signal divergence and sensory preferences may lead to sexual isolation and eventually promote speciation between animal populations. However, few studies have quantified the degree of chemical signal divergence and scent-mediated sexual isolation in lizard populations. Geographic and ecological variations among populations of the whiptail lizard As...
Article
Full-text available
Color polymorphism defies evolutionary expectations as striking phenotypic variation is maintained within a single species. Color and other traits mediate social interactions, and stable polymorphism within a population is hypothesized to be related to correlational selection of other phenotypic traits among color morphs. Here, we report on a previ...
Article
Full-text available
Aggression is one of the most frequently studied behavioural traits across a wide range of taxa; however, most studies evaluate aggressive behaviour in a social context, in which aggressive interactions between conspecifics are motivated by resource control (offensive or social aggression). However, in an antipredator context, the primary role of a...
Article
Chemical signals play a decisive role in communication in many mammal species. In red deer (Cervus elaphus), the dark ventral patch has recently been described as a male chemical signal involved in intrasexual competition. Morphological special-izations of the hair of this area might contribute to retaining the volatile compounds found here. In thi...
Article
Full-text available
Females often have chromatic patterns that differ from those of males. The evolution and function of female coloration is less known than those of males. Female ornaments can result from non-adaptive intersexual genetic correlation, but they may also signal female quality, health state, or potential fecundity. We examined whether the spectral chara...
Article
In many animals, chemosensation acts as a first line of defence against snake predators. However, in spite of their obvious importance, the chemical nature of cues used by prey to detect snakes remains to be discovered. Here, we analyse which neutral lipids, extracted with n-hexane, are present in the skin of the European adder (Vipera berus) using...
Article
An essential part of foraging ecology is to understand the processes of detection, recognition and discrimination of prey, as well as the sensorial modalities involved. Often, predators do not rely on a single sensory system but on multiple interacting senses. Specifically, lizards mainly use vision and vomerolfaction for prey pursuit. Here, we use...
Article
Full-text available
Maintaining social relationships depends on the ability to recognize partners or group members against other individuals. This is especially important in animals with relatively stable social groups. The amphisbaenian Trogonophis wiegmanni is a semi blind fossorial reptile that spends its entire life underground where it interacts with mates and so...
Article
Full-text available
Mechanisms affecting consistent interindividual behavioral variation (i.e., animal personality) are of wide scientific interest. In poikilotherms, ambient temperature is one of the most important environmental factors with a direct link to a variety of fitness‐related traits. Recent empirical evidence suggests that individual differences in boldnes...
Article
Although chemical interactions play an essential role in lizard social behavior, the chemical composition of the femoral gland secretions that many lizards use for communication is known for only a few species, mainly European Lacertids. The tegu lizard, Salvator merianae, is the only species of the Teiidae family for which there is available infor...
Article
Parasites can manipulate their hosts to increase their transmission success. Avian malaria parasites (Plasmodium) are thought to alter the cues such as host odour, used by host-seeking mosquitoes. Bird odour is affected by secretions from the uropygial gland and may play a role in modulating vector-host interactions. We tested the hypothesis that m...
Article
Sexual signals can be evolutionarily stable if they are condition dependent or costly to the signaler. One of these costs may be the trade-off between maintaining the immune system and the elaboration of ornaments. Experimental immune challenges in captivity show a reduction in the expression of sexual signals, but it is not clear whether these det...
Article
Full-text available
Individual recognition (IR) plays an important role in modulating social interactions of several animal species. IR may work at two fundamental levels: at class-level (CIR), if it allows group membership identification (e.g. familiar/unfamiliar), or at individual-level (true IR; TIR), if it allows uniquely recognizing conspecifics. Direct and indir...
Article
Full-text available
The expression of male sexual traits, which is stimulated by testosterone, entails significant costs for individuals. Consequently, natural selection is expected to favour the modulation of sexual trait development according to the balance between its costs and benefits. The proportion of rivals in a population may affect this balance by increasing...
Article
Studies of animal communication have documented myriad rapid, context-dependent changes in visual and acoustic signal design. In contrast, relatively little is known about the capacity of vertebrate chemical signals to rapidly respond, either plastically or deterministically, to changes in context. Four years following an experimental introduction...
Article
Among the scincid lizards inhabiting the Mediterranean region, the Ocellated skink (Chalcides ocellatus) and the little-known and endangered Chafarinas' skink (Chalcides parallelus) co-occur in sympatry at the Chafarinas Islands (NW Africa). Although both species are present in the archipelago, C. ocellatus is spread in the three islands, but C. pa...
Article
One way that maternal effects may benefit the offspring is by informing them about the characteristics of the environment. Through gestation, environmentally induced maternal effects might promote in the offspring-specific behavioral responses like dispersal or residence according to their new habitat characteristics. Females of the Carpetan rock l...
Article
Testosterone secretion may regulate the reproductive effort and the development of sexual traits, but it may also involve costs at the immunological and metabolic levels. However, the evidence for this trade‐off in wild populations is scarce. Similarly, cortisol also plays an important role in mediating the reproductive and immune functions. In thi...
Article
Full-text available
Retreat selection can be a complex process to understand due to the effects of multiple biotic and abiotic factors. The control of these variables through experimental studies may help to explain the factors that affect microhabitat selection. We experimentally examined whether retreat-site selection by two fossorial Mexican earthsnakes (Conopsis b...
Article
Full-text available
Differences in both stable and labile state variables are known to affect the emergence and maintenance of consistent interindividual behavioral variation (animal personality or behavioral syndrome), especially when experienced early in life. Variation in environmental conditions experienced by gestating mothers (viz. nongenetic maternal effects) i...
Conference Paper
La testosterona promueve la expresión de caracteres sexuales secundarios en machos en muchas especies. Sin embargo, los rasgos sexuales conllevan costes y se espera que la selección favorezca la modulación de su desarrollo de acuerdo a un balance entre costes y beneficios. La proporción de machos rivales en una población puede afectar a este equili...
Article
The maintenance of optimal body temperatures has profound consequences on all aspects of ectotherms life history, like fitness and performance, and has been the subject of research for decades. In contrast, for reptiles, comparatively less is known on the potential effects of water balance on physiology, ecology and behaviour. In recent years, seve...
Article
Full-text available
Sexual signals serve as an honest indicator of individual quality, reflecting either developmental and/or maintenance costs. A possible underlying physiological mechanism is oxidative stress, which could mediate energy trade-offs between sexual signals and other quality traits. In ectotherms, thermal performance acts as a key indicator of individua...
Conference Paper
Sexual signals are decisive during intrasexual competition and can contribute to determinate the male access to mates among the species. In Iberian male red deer, sexual traits are probably important in many contexts, as dominance is such a critical aspect of social behaviour. Steroid hormones are also related to these sexual characters. Social cos...
Poster
Ecotourism is a trendy activity that, even if can be responsible with the protection of the environment, produces inevitable negative consequences and impacts in nature. For example, the presence of people hiking could be considered as an increase in predation risk by many animals. The encounter between people and animals could trigger costly antip...
Article
Full-text available
During the mating season, Iberian red deer males (Cervus elaphus hispanicus) present a large visible dark ventral area in their abdomen. This characteristic dark-haired area is formed by the impregnation of the hair with sprayed urine and gland secretions and contains volatile compounds that can be used in intraspecific communication. Here, we used...
Article
Chemical communication plays an essential role in several social and reproductive behaviors of many animals. In lizards, the main sources of semiochemicals are femoral or pre‐anal gland secretions and feces. In male lizards Psammodromus algirus, there are age‐related differences in the chemical composition of femoral gland secretions and in the rep...
Article
Disturbances caused by roads or urbanization can have a significant impact on wildlife populations. However, it remains unclear whether these human activities can be stressors for wild populations of reptiles. We analyzed and compared plasma corticosterone and fecal corticosterone metabolites in male and female spiny tailed lizards (Uromastyx acant...
Article
Full-text available
When encountering predators, prey animals often signal their ability to fight or flee to discourage the predator from an attack or pursuit. A key requirement for evolutionary stability of these predator-deterrent signals is that they convey honest information on the prey’s fighting or fleeing performance. In this study, we investigate the enigmatic...
Article
Female Carpetan rock lizards (Iberolacerta cyreni) might assess the quality of males from their chemical signals. Females select areas scent marked by males with secretions containing high proportions of provitamin D to ensure mating with high-quality males. However, an alternative explanation might be that females are not choosing a mate, but that...
Preprint
Full-text available
Many field studies of ecology or conservation require individual identification of the animals, and for this, several marking techniques have been developed. However, no specific labeling technique has been tested for fossorial reptiles, such as amphisbaenians. We describe the use of Passive Integrated Transponder (PIT) tags as a long-term labeling...
Data
Lipophilic compounds found in P. liolepis femoral pore secretions from two populations in the Midi-Pyrenees. (DOC)
Data
Factor loadings for the PCA on ventral coloration of Podarcis liolepis lizards. (DOCX)
Data
Factor scores for the PCA on ventral coloration of Podarcis liolepis lizards. (DOCX)
Data
Summary statistics (mean + SE) for ventral and dorsal coloration in P. liolepis lizards. (DOCX)
Data
Factor scores for the PCA on dorsal coloration of Podarcis liolepis lizards. (DOCX)
Data
Lipophilic compounds found in P. liolepis femoral pore secretions from two populations in the Midi-Pyrenees. (DOCX)