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1.
Environ Manage ; 60(2): 165-175, 2017 08.
Artículo en Inglés | MEDLINE | ID: mdl-28600638

RESUMEN

A new geological epoch, the "Anthropocene", has been defined as the period in which humans have had substantial geological and ecological influence on the planet. A positive future for this epoch can be referred to as the "good Anthropocene" and would involve effective management strategies and changes in human behavior that promote the sustainability and restoration of ecosystems. Recreational fisheries hold significant social, cultural, and economic value and can generate many benefits when managed sustainably and thus be an integral part of a "good Anthropocene". Here, we list ten commandments to facilitate persistence and long-term sustainability of recreational fisheries in the "good Anthropocene". This list includes fostering aquatic stewardship, promoting education, using appropriate capture gear, adopting evidence-based management approaches, promoting the concept of resilience, obtaining and using effort data in management, embracing the ecosystem approach, engaging in multilevel collaboration, enhancing accessibility, and embracing optimism. When used singly, or simultaneously, these ten commandments will contribute to the harmonization of sustainable fish populations and angling practices, to create recreational fisheries' "bright spots".


Asunto(s)
Conservación de los Recursos Naturales/métodos , Ecosistema , Explotaciones Pesqueras/organización & administración , Recreación , Animales , Conservación de los Recursos Naturales/economía , Conservación de los Recursos Naturales/tendencias , Conducta Cooperativa , Ecología , Explotaciones Pesqueras/economía , Explotaciones Pesqueras/normas , Explotaciones Pesqueras/tendencias , Peces
2.
Ecology ; 104(4): e4004, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36799691

RESUMEN

The negative impacts of non-native species have been well documented, but some non-natives can play a positive role in native ecosystems. One way that non-native plants can positively interact with native butterflies is by provisioning nectar. Relatively little is known about the role of phenology in determining native butterfly visitation to non-native plants for nectar, yet flowering time directly controls nectar availability. Here we investigate the phenological patterns of flowering by native and non-native plants and nectar foraging by native butterflies in an oak savanna on Vancouver Island, British Columbia, Canada. We also test whether native butterflies select nectar sources in proportion to their availability. We found that non-native plants were well integrated into butterfly nectar diets (83% of foraging observations) and that visitation to non-natives increased later in the season when native plants were no longer flowering. We also found that butterflies selected non-native flowers more often than expected based on their availability, suggesting that these plants represent a potentially valuable resource. Our study shows that non-native species have the potential to drive key species interactions in seasonal ecosystems. Management regimes focused on eradicating non-native species may need to reconsider their aims and evaluate resources that non-natives provide.


Asunto(s)
Mariposas Diurnas , Quercus , Animales , Néctar de las Plantas , Ecosistema , Pradera , Flores , Plantas , Colombia Británica
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