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Linking seasonal migration and dispersal: A large-scale demographic approach in a wild partially-migratory metapopulation

Descrizione del progetto

Indagare il rapporto tra migrazione e dispersione tra i marangoni dal ciuffo

La migrazione e la dispersione sono due decisioni critiche, comunemente prese sulla scia del cambiamento delle condizioni ecologiche. Tuttavia, si sa molto poco su come potrebbero essere collegate e su come si influenzano a vicenda. Il progetto MIGRADISP, finanziato dall’UE, si propone di quantificare la migrazione e la dispersione stagionali, così come i legami con le condizioni di infanzia e le reti socio-spaziali, in una metapopolazione su larga scala parzialmente migratoria di marangoni dal ciuffo, dove entrambi i movimenti variano considerevolmente tra individuo e individuo. Questo obiettivo sarà raggiunto ricorrendo ad analisi statistiche all’avanguardia che contribuiranno a colmare una lacuna cruciale nell’interazione tra migrazione e dispersione.

Obiettivo

Migration (seasonal movement) and dispersal (movement between birth and first breeding, or between breeding events) are two critical life-history decisions, both taken in response to changing ecological conditions. They could involve similar decision-making processes and covary, thereby profoundly affecting spatio-temporal population dynamics. Yet, we still know remarkably little about how migration and dispersal might be linked and affect each other. While social information (obtained by observing others’ decisions) is known to influence dispersal decisions, we do not know how such information also influences migration. Key outstanding questions are: (1) What is the metapopulation-wide association between individual migration and dispersal? (2) What is the role of early-life social environment in generating such associations? (3) To what degree does cross-season maintenance of social bonds promote concurrent dispersal and migration?

To answer these questions, I will jointly quantify seasonal migration and dispersal, and links to early-life conditions and social-spatial networks, in a large-scale partially migratory metapopulation of European shags where both movements vary substantially among individuals. I will achieve these goals by applying cutting-edge statistical analyses (multi-state mark-recapture models, social networks) to an outstanding 10-year dataset comprising >90,000 year-round field sightings of ~10,000 marked individuals. My success in this novel and challenging project will be ensured by working with internationally recognized experts at world-class institutes, namely Prof. Jane Reid, Centre for Biodiversity Dynamics (NTNU, Norway) and Dr. Francis Daunt, Centre for Ecology & Hydrology (UK). I will thereby acquire all the scientific and professional skills that I require to fill a crucial gap in our understanding of population demography and its interplay with sociality, and ultimately to become a successful independent research leader in ecology.

Campo scientifico (EuroSciVoc)

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Meccanismo di finanziamento

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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(si apre in una nuova finestra) H2020-MSCA-IF-2019

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Coordinatore

NORGES TEKNISK-NATURVITENSKAPELIGE UNIVERSITET NTNU
Contributo netto dell'UE
€ 214 158,72
Indirizzo
HOGSKOLERINGEN 1
7491 Trondheim
Norvegia
Regione
Norge Trøndelag Trøndelag
Tipo di attività
Higher or Secondary Education Establishments
Collegamenti
Costo totale
€ 214 158,72