DOI: 10.20350/digitalcsic/17719
title: Data supporting the article "Temporal and spatial heterogeneity in dispersal and demography of a long-lived philopatric seabird"

description: [Description of methods used for collection/generation of data] - Monitoring of Storm Petrel nests in the Cap d Es Migdia cave. - Capture recapture of adults using hand capture. - Tick counts on chicks (2018 2020). - Recording of breeding success, nest fidelity, and individual recaptures.
description: [Methods for processing the data] - Data cleaning and structuring in R. - GLMMs fitted using the glmmTMB package. - Multievent capture recapture models fitted in E-SURGE. - Population matrix modelling performed in R.
description: 1.Individuals make habitat selection decisions at different moments of their life and in heterogeneous habitats. Understanding the links between environmental changes and demographic patterns during the individuals’ life is therefore critical to predict long term eco-evolutionary dynamics and species persistence. However, fitness and persistence consequences of habitat selection are seldom addressed in demographic studies.
description: 2. We used long-term capture-recapture data of Mediterranean Storm Petrels to investigate how habitat-selection decisions are made at different spatial (i.e. among and within breeding zones) and temporal scales (i.e. natal and breeding fidelity) in a colony characterized by significant variation in habitat quality due to contrasting parasite infestation levels. Specifically, we evaluate whether birds hatched in and/or breeding at different zones experience different (1) fitness components (i.e., breeding success and survival) and (2) fidelity (i.e. natal and breeding fidelity). In addition, we (3) explore the causes, environmental cues and consequences of nest fidelity vs dispersal. Finally, we project (4) how these differences influence population dynamics and persistence (i.e. population growth rate).
description: 3. Our findings reveal that habitat selection decisions have synergistic fitness consequences on multiple temporal and spatial scales considered. Specifically, breeders in the lower quality habitat zone (i.e. high tick infestation) exhibited reduced breeding success, local survival and nest fidelity but remained within their zone. Breeding success of individuals exhibiting nest dispersal marginally increased. Moreover, natal fidelity was lowest at the zone where fitness was highest. Overall, population growth rate at the colony suggests an annual population decline between 6 and 10%. Individuals seem to base their dispersal decision, but not their habitat selection choices on public information. As a result, birds do not experience increased fitness, indicating the potential presence of an evolutionary trap.
description: 4. Understanding the interplay between synergistic and opposing habitat choices is central to understanding species eco-evolutionary dynamics. Further, our results highlight exciting avenues for future research, when aiming to understand the complex and fundamental roles played by heterogeneity in habitat quality in species demography and eco-evolutionary dynamics, with significant implications for species management and conservation strategies. 
description: File List: Tick infestation & chick survival: - 1.Chicks_ticks_Espartar_2018_2020_.rds - 2.Chick_fate_by_MaxNtick_Zone_.rds - 6.1.Nticks_by_zone_pred.rds - 6.2.Chick_fate_by_zone_pred.rds Reproduction & breeding success: - 3.1.BS_experience_2015_2022_.Rds - 6.3.BS_by_zone_pred.rds Nest fidelity & nest dispersal: - 4.Nest_change_storm_petrel_Espartar_2014_2022_.rds - 5.Causes_nest_change.rds - 5.Information_nest_change.rds - 7.Consequences_nest_change.rds - 6.4.Nest_fid_by_zone_pred.rds Demographic projections & population dynamics: - CensusData.rds - param.rds - param_scenario.rds - 6.5.Fig_vital_rates.rds - 6.6.Fig_Observed_lambda.rds