A5017064136- Avian ecology and behavior
- Bird parasitology and diseases
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Animal Ecology and Behavior Studies
- Fish Ecology and Management Studies
- Species Distribution and Climate Change
- Study of Mite Species
- Ecology and Vegetation Dynamics Studies
- Forest Insect Ecology and Management
- Animal Vocal Communication and Behavior
- Insect and Pesticide Research
- Vector-borne infectious diseases
- Marine animal studies overview
- Forest Ecology and Biodiversity Studies
- Viral Infections and Vectors
- Genetic and phenotypic traits in livestock
- Animal Nutrition and Physiology
- Plant and animal studies
- Rangeland Management and Livestock Ecology
- Bat Biology and Ecology Studies
- Mycorrhizal Fungi and Plant Interactions
- Botany and Plant Ecology Studies
- Forest Management and Policy
- Ecology and biodiversity studies
Swiss Ornithological Institute
2020-2025
Federal Office for the Environment
2014-2016
Google (United States)
2012-2015
Estación Biológica de Doñana
2005-2014
University of Saskatchewan
2011-2014
Université Paris-Sud
2012
Centre National de la Recherche Scientifique
2012
Consejo Superior de Investigaciones Científicas
2008-2009
National Research Council
2007-2008
Research, monitoring and development of preservation strategies for threatened species are often limited by national borders even though a global perspective would be more appropriate. In this study, we collected data on the occurrence beetle, Osmoderma eremita, associated with tree hollows in 2,142 localities from 33 countries Europe where it is or has been present. The larvae develop very few observations have observed dead logs ground. As long as there suitable hollow, appears that O....
In the global scenario of increasing habitat fragmentation, finding appropriate indicators population viability is a priority for conservation. We explored potential learned behaviours, specifically acoustic signals, to predict persistence over time fragmented bird populations. found an association between male song diversity and annual rate change, productivity size, resulting in birds singing poor repertoires populations more prone extinction. This first demonstration that can be predicted...
Individuals of some species differentiate each other on the basis acoustic features their vocalizations, and this can be used in individual‐based population monitoring studies. No research has tested for effectiveness individual marking through voice recognition as compared to traditional methods relying physical marks. We using Dupont's lark Chersophilus duponti a study species. This bird needs attracted with playback order seen (or captured). first demonstrated that territorial calls from...
Exotic species can have devastating effects on recipient environments and even lead to the outbreak of emergent diseases. We present here several hidden that introduction goats has had Lesser Short-toed Lark, Calandrella rufescens, commonest native bird inhabiting island Fuerteventura (Canary Islands). Vegetation structure varied with grazing pressure, indeed, vegetation was all but eradicated from locality greatest goat densities, which also where lowest density Larks recorded. The impact...
Size and isolation of local populations are main parameters interest when assessing the genetic consequences habitat fragmentation. However, their relative influence on erosion remains unclear. In this study, we first analysed how size patches variation Dupont's lark (Chersophilus duponti), an endangered songbird. An information-theoretic approach to model selection allowed us address importance interactions between variables, aspect seldom considered in fragmentation studies, but which...
Symbionts are key elements of ecosystems, by playing important roles in shaping the biology and ecology their hosts. However, factors determining symbiont loads across host species still unclear. Nowadays, we know that intensity prevalence feather mites, most diverse group avian ectosymbionts, differ strongly between species. To understand those differences, studied 17 bird traits two mite community features (species richness composition species) potentially related to interspecific...
Feather mites are arthropods that live on or in the feathers of birds, and among commonest avian ectosymbionts. However, nature ecological interaction between feather birds remains unclear, some studies reporting negative effects their hosts others positive no effects. Here we use a large dataset comprising 20 189 measurements taken from 83 species collected during 22 yr 151 localities seven countries Europe North Africa to explore correlation mite abundance body condition hosts. We...
The European population of Dupont's lark Chersophilus duponti , restricted to Spanish steppe, was estimated be 13,000 pairs in c . 50 populations 1988. There is, however, recent evidence that this number overestimated because the previous use line transects for estimating sizes. In 2002–2004 we surveyed 34 previously known local patches variable size across half its distribution. We found 13 (38%) extinct, and a total only 283–339 territories 17 extant populations, seven which held <5...
Survival is a fundamental parameter in population dynamics with increasing importance the management and conservation strategies of wildlife populations. probability vertebrates usually estimated by live‐encounter data obtained means physical mark–capture–recapture protocols. Non‐invasive acoustic marking relying on individual‐specific features signals has been alternatively applied as technique, especially secretive species. Nevertheless, to date no research compared survival rate estimates...
Understanding why host species differ so much in symbiont loads and how this depends on ecological traits is a major issue the ecology of symbiosis. A first step inquiry to know whether observed differences among are species-specific or more related with host-symbiont environmental conditions. Here we analysed repeatability (R) intensity prevalence feather mites partition within- among-host variance components. We compiled largest dataset far available: 119 Paleartic passerine bird species,...
Artificial nest experiments (ANEs) are widely used to obtain proxies of natural predation for testing a variety hypotheses, from those dealing with variation in life-history strategies assessing the effects habitat fragmentation on persistence bird populations. However, their applicability real-world scenarios has been criticized owing many potential biases comparing rates artificial and nests. Here, we aimed test validity estimates ANEs using novel approach. We related nests population...
Emergent infectious diseases represent a major threat for biodiversity in fragmented habitat networks, but their dynamics host metapopulations remain largely unexplored. We studied large community of pathogens (including 26 haematozoans, bacteria and viruses as determined through polymerase chain reaction assays) highly mainland bird metapopulation. Contrary to recent studies, which have established that the prevalence increase with fragmentation owing crowding habitat-edge effects, analysed...
Comprehending symbiont abundance among host species is a major ecological endeavour, and the metabolic theory of ecology has been proposed to understand what constrains populations. We parameterized equations investigate how bird species' body size their feather mites relate mite according four potential energy (uropygial gland size) space constraints (wing area, total length barbs number barbs). Predictions were compared with empirical scaling across 106 passerine (26,604 individual birds...
Abstract European farmland birds show massive large‐scale population declines due to agricultural intensification. Long‐distance migrants are particularly affected as their populations appear undergo larger than those of residents and short‐distance migrants, raising the question about impact non‐breeding environmental conditions potential on annual survival. The whinchat Saxicola rubetra, an Afro‐Palaearctic migrant inhabiting open habitats, has strongly declined over last decades. Most...
Abstract Senescence has been studied since a long time by theoreticians in ecology and evolution, but empirical support natural population only recently accumulating. One of the current challenges is investigation senescence multiple fitness components study differences between sexes. Until now, studies have more frequently conducted on females than males rather long‐lived short‐lived species. To reach fundamental understanding evolution senescence, it critical to investigate age‐specific...
Abstract Comprehending symbiont abundance among host species is a major ecological endeavour, and the metabolic theory of ecology has been proposed to understand what constraints populations. We parameterized equations predict how bird species’ body size their feather mites relate mite according four potential energy (microbial abundance, uropygial gland size) space (wing area, number barbs). Predictions were compared with empirical scaling from 26,604 birds 106 passerine species, using...
On the basis of studies on longhorn beetles in former coppicewith-standards forests Freiburger Bucht region (SW-Germany),decisions concerning revitalisation coppice forest management from point view species protection should be methodically and realistically substantiated. To this end, treetop inhabiting contrast to those living trunk have been systematically recorded two areas since 1996. This has revealed a great number rare endangered tree-top fauna; importance that inhabit tree trunks...