Luca Corlatti

Luca Corlatti
Stelvio National Park · Scientific Research and Monitoring

PhD Evolutionary Biology

About

70
Publications
21,372
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
833
Citations
Introduction
Senior Wildlife Ecologist at the Stelvio National Park, Italy, and Affiliate Professor of Wildlife Ecology at the University of Freiburg, Germany. I'm interested in the behavior, ecology and management of mountain wildlife, with a preference for sexual selection, population dynamics and abundance estimation. Current projects involve chamois, red deer and marmots.
Additional affiliations
December 2021 - present
University of Freiburg
Position
  • Professor
October 2021 - present
Stelvio National Park
Position
  • Senior Wildlife Ecologist
June 2017 - September 2021
University of Freiburg
Position
  • PostDoc Position

Publications

Publications (70)
Article
Full-text available
Weaponry in ungulates may be costly to grow and maintain, and different selective pressures in males and females may lead to sex-biased natural survival. Sexual differences in the relationship between weapon growth and survival may increase under anthropogenic selection through culling, for example because of trophy hunting. Selection on weaponry g...
Article
Full-text available
In polygynous mating systems, reproductive skew depends on the ability of males to monopolize females, which in turn may promote the development of contrasting traits in the two sexes. Although dominant individuals normally enjoy a higher reproductive success (RS) than subordinates, the use of genetic markers has shown that behavioural observations...
Article
Mammalian Biology j o u r n a l h o m e p a g e : w w w . e l s e v i e r . d e / m a m b i o a b s t r a c t Many polygynous ungulates show higher mortality of males than of females, because of the intense male–male competition during the rut and the costs associated with the development of sexual-size dimorphism. In the weakly dimorphic Alpine ch...
Article
Alternative mating tactics (AMTs) may show different trade-offs between current reproduction and survival; however, the proximate mechanisms underlying this pattern remain unclear. Among them, the relationship between reproductive effort and parasite resistance mediated by hormonal secretion has received increasing attention. We monitored 19 marked...
Article
ABSTRACT • Despite it being the most abundant mountain dwelling ungulate of Europe and the Near East, the taxonomy, systematics and biology of the chamois are still imperfectly known. Although neither species of chamois is at risk, several subspecies are threatened (Rupicapra rupicapra cartusiana, Rupicapra rupicapra tatrica and Rupicapra rupicapra...
Article
Full-text available
Mountain regions are hotspots of biodiversity, and are particularly sensitive to human activities and global changes. Characterizing biodiversity using trait-based approaches may improve the understanding of the evolutionary and mechanistic basis of ecological patterns in species distribution. The investigation of trait-environment relationships, h...
Article
Full-text available
Obtaining reliable estimates of population abundance is of utmost importance for wildlife research andmanagement. To this aim, camera-traps are increasingly used, as this method has the advantage of being non-invasive and allows for continuous monitoring. Camera traps can be used to estimate abundance in combinationwith traditional capture-recaptur...
Article
Full-text available
In camera trap studies, attractants may be used to increase detection probabilities of wildlife, which may help to improve estimates of abundance and occupancy. Using a semi-experimental approach, we investigated if a commercial, strawberry scented lure increased detection probability and visiting time duration in red fox Vulpes vulpes, and the pot...
Article
Full-text available
Hair cortisol concentration (HCC) has recently gained popularity as an easy-to-measure biomarker of long-term stress in wild and domestic animals. Hair integrates cortisol over long time periods within a single sample and it can be collected non- invasively, which makes its use particularly interesting for wildlife studies. Interpreting HCC values,...
Poster
Full-text available
The loss of biodiversity is a major conservation concern of the last decades, with a key role played by invasive alien species that can cause dramatic changes to native ecosystems, altering habitats and reducing or eliminating endemic species. The aoudad or Barbary sheep (Ammotragus lervia Pallas, 1777) is a north-African ungulate commercialised an...
Article
Full-text available
The chamois Rupicapra spp. is the most abundant mountain ungulate of Europe and the Near East, where it occurs as two species , the northern chamois R. rupicapra and the southern chamois R. pyrenaica. Here, we provide a state-of-the-art overview of research trends and the most challenging issues in chamois research and conservation, focusing on tax...
Article
Full-text available
Understanding the drivers of species distribution ranges and population genetic structure can help predict species' responses to global change, while mitigating threats to biodiversity through effective conservation measures. Here, we combined species habitat suitability through time with process‐based models and genomic data to investigate the rol...
Article
Full-text available
Fecal cortisol metabolites (FCMs) are widely used to track stress responses in wildlife and captive species. Rules of thumb suggest that samples should be collected as soon as possible after defecation, to avoid decay of FCMs. To date, however, only a few studies investigated the stability of defecated FCMs over time, and most of them were conducte...
Article
Full-text available
Uptake and use of energy are of key importance for animals living in temperate environments that undergo strong seasonal changes in forage quality and quantity. In ungulates, energy intake strongly affects body mass gain, an important component of individual fitness. Energy allocation among life-history traits can be affected by internal and extern...
Article
Full-text available
Staphylococcus aureus is a pathogen that can affect multiple host species. Evidence of transmission between humans and animals and among different animal species has been reported in recent years. In this study, we investigated 284 free‐living red deer (Cervus elaphus) in the Central Italian Alps to assess the prevalence and molecular characteristi...
Article
Full-text available
The interaction between wild and domestic ungulates may have positive or negative effects. Cattle grazing, for example can preserve open space and improve forage quality but also decrease forage availability and favor disease transmission. Consequently, multiple patterns of space use can be expected between wild ungulates and livestock. Here, we in...
Article
Full-text available
Regression modeling is a workhorse of statistical ecology that allows to find relationships between a response variable and a set of explanatory variables. Despite being one of the fundamental statistical ideas in ecological curricula, regression modeling can be complex and subtle. This paper is intended as an applied protocol to help students unde...
Article
Full-text available
Climate change is known to affect key life history traits, such as body mass, reproduction, and survival in many species. Animal populations inhabiting mountain habitats are adapted to extreme seasonal environmental conditions, but are also expected to be especially vulnerable to climate change. Studies on mountain ungulates typically focus on popu...
Article
Full-text available
Sympatric species with similar niches compete for common resources, often resulting in spatio-temporal avoidance. To date, little is known about the spatio-temporal interactions of ungulates in forested habitats. Using camera traps, we investigated the spatio-temporal responses of alpine chamois to the presence of red deer in the mountain forests o...
Article
Full-text available
Heterogeneity in resource availability and quality can trigger spatial patterns in the expression of sexually selected traits such as body mass and weaponry. While relationships between habitat features and phenotypic quality are well established at broad geographical scales, information is poor on spatial patterns at finer, intrapopulation scales....
Article
Full-text available
Investigating the impact of ecological factors on sex-and age-specific vital rates is essential to understand animal population dynamics and detect the potential for interactions between sympatric species. We used block count data and autoregressive linear models to investigate variation in birth rate, kid survival, female survival, and male surviv...
Chapter
Full-text available
The chamois is the most abundant mountain ungulate of Europe. Although the taxonomy of the genus has been subject to continuous revisions since the beginning of the twentieth century, currently two species are recognized: the Northern chamois Rupicapra rupicapra, and the Southern chamois Rupicapra pyrenaica. In this chapter we follow this classific...
Article
Full-text available
In polygynous ungulates, males may achieve fertilization through the use of alternative reproductive tactics (ARTs), discrete phenotypic variations evolved to maximize fitness. ARTs are often associated with different male spatial strategies during the rut, from territoriality to female-following. Although variation in space use patterns of rutting...
Article
Full-text available
The Northern chamois (Rupicapra rupicapra) is a weakly polygynous species widely distributed in the mountain regions of Europe and the Near East. The Balkan chamois (R. r. balcanica) occurs in the mountain regions of southeastern Europe, and its ecology and behavior during the rut are largely unknown, making it one of the most understudied subspeci...
Article
Full-text available
Shiga toxin-producing E. coli (STEC) are zoonotic foodborne pathogens of outmost importance and interest has been raised in recent years to define the potential zoonotic role of wildlife in STEC infection. This study aimed to estimate prevalence of STEC in free-ranging red deer (Cervus elaphus) living in areas with different anthropization levels a...
Article
Full-text available
Reliable and cost-effective monitoring tools to track population size over time are of key importance for wildlife management and conservation. Deterministic cohort analysis may be used to this aim, especially in hunted populations, but it requires that all mortality events are recorded and that individual age at death is known exactly. In this stu...
Article
Full-text available
Bird species richness has often been used as an indicator of urbanisation effects on biodiversity in North America and Europe, but similar studies are rare in rapidly urbanising regions in the tropics. Here we assess the effect of different urban environmental factors on local resident bird species richness at different spatial extents in South Asi...
Conference Paper
After a strong demographic decline before World War II, wild boar (Sus scrofa) populations are expanding and the species is now the second-most abundant ungulate in Europe. This increase raises concerns due to wild boar impact on agriculture and natural ecosystems and as potential vector of disease transmissions. The population expansion is the res...
Article
Full-text available
Knowledge of population trends is of key importance for sustainable management of wildlife and finding reliable and cost–effective monitoring methods is therefore of great interest. In two populations of Alpine chamois Rupicapra rupicapra, we collected data on mortality from 12424 individuals hunted or found dead and population size data based on g...
Technical Report
Full-text available
Rupicapra rupicapra - IUCN reassessment 2020
Article
Full-text available
The increasing use of remote motion-sensitive photography recently led to an extension of distance sampling (DS) to accommodate camera trap data. Camera trap distance sampling (CTDS) has been proposed as a promising tool to estimate animal abundance, if temporally limited availability for detection is accounted for. However, the performance of CTDS...
Data
Dataset for the tutorial: "Regression models, fantastic beasts and where to find them: An ecologist's perspective"
Article
Full-text available
Black and white face markings in Artiodactyls are thought to be broadly associated with intraspecific communication. Evidence-based studies on the fine-scale mechanisms of signaling, however, are scant. The occurrence of black and white face markings is one of the most distinctive features of the Northern chamois Rupicapra rupicapra. Although their...
Article
Full-text available
Investigating the drivers of diet quality is a key issue in wildlife ecology and conservation. Fecal near infrared reflectance spectroscopy (f-NIRS) is widely used to assess dietary quality since it allows for noninvasive, rapid, and low-cost analysis of nutrients. Samples for f-NIRS can be collected and analyzed with or without knowledge of animal...
Article
In polygynous ungulates, male breeding success is often achieved through alternative reproductive tactics (ARTs). The maintenance of ARTs in this taxon is largely explained by condition-dependent selection, a decision rule in which individuals switch their breeding behaviour on the basis of internal factors such as ageing (status-dependent selectio...
Article
Full-text available
The expression of sexually selected traits in highly dimorphic ungulates may be influenced by environmental quality. Variations in habitat conditions can impose different constraints on the allocation of energy resources to male life-history traits, and possibly alter the female preferences for specific features. Here, we compared the horn growth p...
Article
The chamois is widely perceived as a strictly high-elevation ungulate, though its spatial behavior suggests fairly high phenotypic plasticity and long-range dispersal abilities. Here, we describe and discuss five events of ‘unconventional’ habitat use by chamois, i.e., individuals found swimming in the sea of Croatia and Spain, between 2004 and 201...
Article
Information on spatial behaviour and temporal activity patterns is paramount for the conservation of animal species. This is particularly true for endangered taxa that are threatened by ongoing climatic and environmental changes. The garden dormouse Eliomys quercinus is a native European rodent (family Gliridae), whose populations are declining thr...
Article
Full-text available
The development of horns in Caprinae can be largely influenced by food-limiting factors such as population density and climate, as well as by negative evolutionary responses to size-selective harvesting. In this study, we investigated the effects of population density, environmental covariates and trophy hunting on horn development in a population...
Article
Full-text available
Alternative reproductive tactics (ARTs), discrete phenotypic variations evolved to maximize fitness, may entail different cost-benefit trade-offs. In large mammals, differences in costs associated with ARTs-including energy expenditure and parasite infection-are typically greatest during the breeding season. Nonetheless, physiological and behaviora...
Code
This is the RMarkdown of the paper of Corlatti et al. 2019 EcolEvol "Parasitism and alternative reproductive tactics in Northern chamois"
Code
This is the RMarkdown document for the manuscript “Long-term dynamics of Alpine ungulates suggest interspecific competition” by Corlatti, L., Bonardi, A., Bragalanti, N. & Pedrotti, L.
Article
Full-text available
Background: Poaching is a prominent source of ‘hidden hurdles’, cryptic impacts of human activities that may hinder the conservation of animal populations. Estimating poaching mortality is challenging, as the evidence for illegal killing is not outwardly obvious. Using resighting and recovery data collected on 141 marked red deer Cervus elaphus wit...
Article
Full-text available
Hunting lactating or non-lactating female ungulates is a debated issue because of offspring orphaning. Approaches based on individual-based modelling have been recently applied to investigate potential consequences of random hunting on lactating and non-lactating female chamois, and suggested that this management regime would have no effect on cham...
Article
Full-text available
Estimating animal abundance is essential for research, management and conservation purposes. Although reliable methods exist to estimate absolute density for populations with individually marked animals, robust relative abundance indices (RAIs) may allow to track changes in population size when individual identification is not possible. Their perfo...
Data
Supporting information for Kämmerle et al. Methods for assessing small-scale variation in the abundance of a generalist mesopredator. (DOCX)
Data
Red fox RAIs and model data in three study sessions. (ZIP)
Article
Hybridisation and gene introgression are important sources of diversification, the relevance of which in the evolutionary processes is well recognised. Their fitness consequences in animal populations, however, are not sufficiently well understood, despite hybridisation rates becoming increasingly important worldwide following human‐related activit...
Article
Full-text available
Female reproductive performance is a central component of ungulate population dynamics, and it can be influenced by individual, social, and environmental factors. Researchers have often assumed direct effects of different predictors on reproduction, yet more complex relationships should be considered when investigating temporal variations in life-h...
Article
The dynamics of red deer Cervus elaphus populations has been investigated across different environmental conditions, with the notable exception of the European Alps. Although the population dynamics of mountain-dwelling ungulates is typically influenced by the interaction between winter severity and density, the increase of temperatures and the red...
Article
Full-text available
Obtaining reliable information on animal abundance in mountainous landscapes is challenging. Highly heterogeneous habitats tend to reduce detection probabilities, and the three-dimensional, rugged nature of the terrain poses severe limits to the fulfilment of a number of assumptions underlying several statistical methods. In this study, we compared...
Article
Full-text available
Monitoring changes in animal abundance is a central issue in conservation biology. Population indices may be a valuable support to wildlife managers in coarse-scale survey programs, as they normally represent more intuitive and less expensive monitoring tools if compared with absolute estimates. Reliable indices of relative abundance, however, requ...
Article
Full-text available
Daily activity rhythms in mammals are influenced by a range of biotic and abiotic factors. During warm periods, mountain ungulates living in open areas typically show a bimodal pattern of activity rhythms, with peaks at dawn and dusk. To date, however, little is known about the activity patterns of mountain ungulates living in forested habitats, an...
Article
Full-text available
Population size estimates represent indispensable tools for many research programs and for conservation or management issues. Mountain ungulates in open areas are often surveyed through ground counts that normally underestimate population size. While the use of sample counts is desirable, few studies have compared different probabilistic approaches...
Article
From a life history perspective, glucocorticoids secreted by the neuroendocrine system, integrating different sources of stress through an adaptive feedback mechanism, may have important consequences on individual fitness. Although stress responses have been the object of several investigations, few studies have explored the role of proximate mecha...
Article
Male ungulates in temperate environments often show a severe reduction in time spent foraging during the mating season. Several hypotheses have been put forward to explain this phenomenon but, so far, no study investigated the proximate mechanisms underlying rut-induced hypophagia in ungulates using alternative mating tactics (AMTs). Between the pr...
Article
Foraging behaviour plays a key role in growth, survival and reproduction. Male ungulates in temperate environments show seasonal fluctuations in uptake and use of energy, with summer accumulation of reserves later used to sustain the costs of the mating season. To date, however, very little information is available on the foraging behaviour of indi...
Article
Full-text available
We report the case of an adult female chamois Rupicapra rupicapra within the Gran Paradiso National Park (Italy), showing an abnormal horn-like growth hanging from the skin of the region between the right shoulder and the neck. Similar cases have previously been reported in both domestic and wild animals, including Alpine chamois. The singu-larity...
Article
Males using alternative male mating tactics (AMTs) may express their mating effort in a variety of ways. In polygynous species with limited sexual dimorphism, differences in male aggressiveness may affect mating opportunities. We recorded the behaviour of 8 territorial and 7 nonterritorial male Alpine chamois Rupicapra rupicapra, a weakly dimorphic...
Article
Full-text available
We measured faecal cortisol metabolites of a free-ranging riparian population of red deer to investigate potential effects of season, ambient temperature, precipitations and water level on the annual secretion pattern. Individuals may cope with environmental challenges through the secretion of stress hormones (glucocorticoids) which allows the inte...
Article
Full-text available
We reviewed research on wildlife overpasses in the context of their genetic effectiveness to provide connectivity between population patches that have been isolated by road construction. The potential ecological consequences of such habitat fragmentation include reduction of gene flow between subpopulations and hence an increase in genetic differen...

Network

Cited By

Projects

Project (1)