Drivers of seedling establishment success in dryland restoration efforts.

• Autores: Shackelford, Nancy; Paterno, Gustavo B.; Winkler, Daniel E.; Erickson, Todd E.; Leger, Elizabeth A.; Svejcar, Lauren N.; Breed , Martin F.; Faist, Akasha M.; Harrison, Peter A.; Curran, Michael F.; Peri, Pablo Luis; Suding, Katharine L.
• Año de publicación: 2021
• Idioma: inglés
• Tipo de recurso: artículo
• Fuente: Nature Ecology & Evolution 5 (9) : 1283-1290. (2021)
• Materia: Climate Change; Restoration; Drylands; Seedlings; Plants; Decision Making; Cambio Climático; Restauración; Tierras de Secano; Plántulas; Plantas; Toma de Decisiones; Degraded; Global Data; Degradación; Datos Globales
• Institución: Instituto Nacional de Tecnología Agropecuaria

Restoration of degraded drylands is urgently needed to mitigate climate change, reverse desertification and secure livelihoods for the two billion people who live in these areas. Bold global targets have been set for dryland restoration to restore millions of hectares of degraded land. These targets have been questioned as overly ambitious, but without a global evaluation of successes and failures it is impossible to gauge feasibility. Here we examine restoration seeding outcomes across 174 sites on six continents, encompassing 594,065 observations of 671 plant species. Our findings suggest reasons for optimism. Seeding had a positive impact on species presence: in almost a third of all treatments, 100% of species seeded were growing at first monitoring. However, dryland restoration is risky: 17% of projects failed, with no establishment of any seeded species, and consistent declines were found in seeded species as projects matured. Across projects, higher seeding rates and larger seed sizes resulted in a greater probability of recruitment, with further influences on species success including site aridity, taxonomic identity and species life form. Our findings suggest that investigations examining these predictive factors will yield more effective and informed restoration decision-making.
EEA Santa Cruz
Fil: Shackelford, Nancy. University of Victoria. School of environmental Studies; Canadá.
Fil: Shackelford, Nancy. University of Colorado. Ecology and evolutionary biology; Estados Unidos
Fil: Paterno, Gustavo B. Universidade Federal do rio Grande do Norte. Departamento de ecología; Brasil.
Fil: Paterno, Gustavo B. Technical University of Munich. Department of ecology and ecosystem management. Restoration ecology research Group; Alemania
Fil: Winkler, Daniel E. Southwest biological Science Center. US Geological Survey; Estados Unidos
Fil: Erickson, Todd E. The University of Western Australia School of biological Sciences; Australia.
Fil: Erickson, Todd E. Kings park Science. Department of biodiversity Conservation and Attractions; Australia.
Fil: Leger, Elizabeth A. University of Nevada. Department of Biology; Estados Unidos
Fil: Svejcar, Lauren N. Eastern Oregon Agricultural research Center. USDA Agricultural research Service; Estados Unidos
Fil: Breed , Martin F. Flinders University. College of Science and engineering; Australia.
Fil: Faist, Akasha M. New Mexico State University. Department of Animal and range Sciences; Estados Unidos
Fil: Harrison, Peter A. University of Tasmania. School of Natural Sciences and ArC training. Centre for Forest Value; Australia.
Fil: Curran, Michael F. University of Wyoming. Program in ecology; Estados Unidos
Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina.
Fil: Peri, Pablo Luis. Universidad Nacional de la Patagonia Austral; Argentina.
Fil: Peri, Pablo Luis. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Suding, Katharine L. University of Colorado. Ecology and evolutionary biology; Estados Unidos
Fil: Suding, Katharine L. University of Colorado. Institute of Arctic and Alpine research; Estados Unidos