A5089042214- Animal Behavior and Reproduction
- Avian ecology and behavior
- Plant and animal studies
- Wildlife Ecology and Conservation
- Primate Behavior and Ecology
- Animal Vocal Communication and Behavior
- Animal Ecology and Behavior Studies
- Bird parasitology and diseases
- Species Distribution and Climate Change
- Social Sciences and Policies
- Insect and Pesticide Research
- Rangeland and Wildlife Management
- Bat Biology and Ecology Studies
- Viral Infections and Vectors
- Labor Law and Work Dynamics
- Ecology and biodiversity studies
- Agricultural and Food Production Studies
- Livestock and Poultry Management
- Animal Behavior and Welfare Studies
- Vector-borne infectious diseases
- Human-Animal Interaction Studies
- Family Dynamics and Relationships
- Comparative Animal Anatomy Studies
- Insect and Arachnid Ecology and Behavior
- Historical Economic and Social Studies
Universidad de León
2019-2024
Universidad de León
2021-2023
Instituto de Historia
2021
Universidad de Oviedo
2012-2017
Consejo Superior de Investigaciones Científicas
2014-2017
Universidad de Valladolid
2010-2011
Universidad de Granada
2008-2010
University of Cambridge
2004-2007
Uppsala University
2002-2005
University of Pavia
2002-2004
Avian brood parasites lay eggs in the nests of other birds, which raise unrelated chicks and typically suffer partial or complete loss their own brood. However, carrion crows Corvus corone can benefit from parasitism by great spotted cuckoo Clamator glandarius. Parasitized have lower rates predation-induced failure due to production a repellent secretion chicks, but among that are successful, those with fledge fewer crows. The outcome these counterbalancing effects fluctuates between...
In most cooperative vertebrates, delayed natal dispersal is the mechanism that leads to formation of kin societies. Under this condition, possibility kin-based breeding an unselected consequence patterns can never be ruled out because helpers only help their relatives. Here we show a population carrion crows (Corvus corone corone) fully fits central prediction selection theory should arise among On territory, resident breeders are aided not by nonbreeding retained offspring but also...
Kin-based societies, where families represent the basic social unit, occur in a relatively small number of vertebrate species. In majority avian kin form when offspring prolong their association with parents on natal territory. Therefore, key to understanding evolution birds is understand philopatry (i.e. tendency remain territory). It has been shown that, within populations, strength between and family stability) increases dispersal constrained by external environmental factors, but it...
Abstract Cooperatively breeding birds typically form cohesive and stable groups that live year‐round in all purpose territories where competition for resources is likely to arise. Understanding how group members negotiate over crucial because conflicts may disrupt the stability of ultimately hinder cooperation. However, social relationships within have been largely neglected so far. Here we investigated cooperatively carrion crows ( Corvus corone ) share a food source, by observing dyadic...
Life history theory predicts that mothers should trade off current and future reproductive attempts to maximize lifetime fitness. When breeding conditions are favourable, may either increase investment in the eggs improve quality of offspring or save resources for reproduction as good raising environment is likely compensate a 'bad start'. In cooperatively birds, presence helpers improves so vary number, size response composition group. Here, we show carrion crows Corvus corone corone, where...
The Carrion Crow (Corvus corone) is almost invariably reported as a species breeding unassisted pairs, but population of Crows c. from northern Spain that we have been studying since 1995 regularly exhibits cooperative breeding. Spanish thus demonstrates can vary greatly across populations. Most the territories (73.3%) in were held by cohesive groups, which consisted up to nine birds (mode = 3 birds). proportion fledglings delayed dispersal for one year varied between 12.2 and 47.5%...
Kin–based cooperative breeding, where grown offspring delay natal dispersal and help their parents to rear new young, has a long history in some avian lineages. Family formation helping behaviour extant populations may therefore simply represent the retention of ancestral features, tolerated under current conditions, rather than adaptive process driven by environmental factors. Separating these two possibilities challenges evolutionary biologists because tight coupling that normally exists...
1 The ecological factors that promote delayed dispersal of offspring in cooperatively breeding bird species are poorly understood. While single population studies have supported the view natal is as a consequence lack suitable vacancies (ecological constraints hypothesis), recent theoretical models claim habitat saturation cannot be main factor leading to kin sociality. 2 carrion crow (Corvus corone ssp.) an ideal model investigate ecology dispersal. occurrence sociality highly variable...
In many cooperatively breeding societies, helping effort varies greatly among group members, raising the question of why dominant individuals tolerate lazy subordinates. groups carrion crows Corvus corone , helpers at nest increase breeders' reproductive success, but chick provisioning is unevenly distributed non-breeders, with a gradient that ranges from work as much breeders to others completely refrain visiting nest. Here we show non-breeders represent an insurance workforce fully...
Abstract The Carrion Crow (Corvus corone) is almost invariably reported as a species breeding unassisted pairs, but population of Crows c. from northern Spain that we have been studying since 1995 regularly exhibits cooperative breeding. Spanish thus demonstrates can vary greatly across populations. Most the territories (73.3%) in were held by cohesive groups, which consisted up to nine birds (mode = 3 birds). proportion fledglings delayed dispersal for one year varied between 12.2 and 47.5%...
Hosts may use two different strategies to ameliorate negative effects of a given parasite burden: resistance or tolerance. Although both and tolerance parasitism should evolve as consequence selection pressures owing parasitism, the study evolutionary patterns has traditionally been neglected by animal biologists. Here, we explore geographical covariation between magpies ( Pica pica ) brood great spotted cuckoo Clamator glandarius in nine sympatric populations. We estimated slope regression...
False feeding, where individuals refrain from delivering a food item to begging dependent young, has been described in several cooperative bird and mammal species, but its function is still unclear. feeding suggested represent either deceptive tactic of helpers aimed at showing off provisioning behavior the rest group without paying costs or normal caregivers mediated by trade-off between hunger young caregivers’ own conditions. Here, we employed an experimental approach test whether false...
Wolf management in Spain is remarkably different at regional scales. South of Douro river, wolves are protected, north can be hunted, and culling occurs on both sides. After a formal request to include the Spanish Red List Threatened Species, have been “listed,” but not as vulnerable species. Recreational hunting will no longer wolf option, while still allowed. We describe process raise protection state level, factors that should relevant guide apex-predator management. Restricting lethal...