Browsing by Author "Romero-de-Diego, Cristina"

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    How conservation initiatives go to scale
    (2019) Mills, Morena; Bode, Michael; Mascia, Michael B.; Weeks, Rebecca; Gelcich, Stefan; Dudley, Nigel; Govan, Hugh; Archibald, Carla L.; Romero-de-Diego, Cristina; Holden, Matthew; Biggs, Duan; Glew, Louise; Naidoo, Robin; Possingham, Hugh P.
    Although a major portion of the planet's land and sea is managed to conserve biodiversity, little is known about the extent, speed and patterns of adoption of conservation initiatives. We undertook a quantitative exploration of how area-based conservation initiatives go to scale by analysing the adoption of 22 widely recognized and diverse initiatives from across the globe. We use a standardized approach to compare the potential of different initiatives to reach scale. While our study is not exhaustive, our analyses reveal consistent patterns across a variety of initiatives: adoption of most initiatives (82% of our case studies) started slowly before rapidly going to scale. Consistent with diffusion of innovation theory, most initiatives exhibit slow-fast-slow (that is, sigmoidal) dynamics driven by interactions between existing and potential adopters. However, uptake rates and saturation points vary among the initiatives and across localities. Our models suggest that the uptake of most of our case studies is limited; over half of the initiatives will be taken up by <30% of their potential adopters. We also provide a methodology for quantitatively understanding the process of scaling. Our findings inform us how initiatives scale up to widespread adoption, which will facilitate forecasts of the future level of adoption of initiatives, and benchmark their extent and speed of adoption against those of our case studies.
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    Local disconnects in global discourses-The unintended consequences of marine mammal protection on small-scale fishers
    (2021) Davis, Katrina J.; Alfaro-Shigueto, Joanna; Arlidge, William N. S.; Burton, Michael; Mangel, Jeffrey C.; Mills, Morena; Milner-Gulland, E. J.; Palma-Duque, Jose; Romero-de-Diego, Cristina; Gelcich, Stefan
    Global commitments prioritize protection of wildlife and improvements to human wellbeing. Local disconnects in these commitments are rarely acknowledged-or their implications assessed-preventing the development of effective solutions. National and international efforts to protect marine mammals along South America's west coast have contributed to species recovery, but also to conflict between sea lions and small-scale fisheries. To understand the concerns ultimately motivating this conflict, we assessed how 301 coastal small-scale fishers perceive their interactions with South American sea lions (Otaria flavescens). We then reviewed the terrestrial human-wildlife literature to identify potential management solutions to resolve the conflict. We find that fishers are chiefly concerned with increases in sea lion populations, perceive that sea lion interactions have significantly increased over the past 80 years, and report sea lion-driven catch and income losses of >= 26%. We propose solutions to manage conflict that are sensitive to heterogeneity among fisher groups.