Rapid upwards spread of non-native plants in mountains across continents

• Autores: Iseli, Evelin; Chisholm, Chelsea; Lenoir, Jonathan; Haider, Sylvia; Seipel, Tim; Barros, Ana Agustina; Hargreaves, Anna L.; Kardol, Paul; Lembrechts, Jonas J.; McDougall, Keith; Alexander, Jake M.; Rashid, Irfan; Rumpf, Sabine B.; Arévalo, José Ramón; Cavieres González, Lohengrin Alexis; Daehler, Curtis; Dar, Pervaiz A.; Endress, Bryan; Jakobs, Gabi; Jiménez, Alejandra; Küffer, Christoph; Mihoc, Maritza; Milbau, Ann; Morgan, John W.; Naylor, Bridgett J.; Ratier Backes, Amanda; Reshi, Zafar A.; Rew, Lisa J.; Righetti, Damiano; Shannon, James M.; Valencia, Graciela; Walsh, Neville; Wright, Genevieve T.; Alexander, Jake M.
• Año de publicación: 2023
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: plantas invasoras; cambio climatico; montaña; disturbios antropicos
• Institución: Consejo Nacional de Investigaciones Científicas y Técnicas

High-elevation ecosystems are among the few ecosystems worldwide that are not yet heavily invaded by non-native plants. This is expected to change as species expand their range limits upwards to fill their climatic niches and respond to ongoing anthropogenic disturbances. Yet, whether and how quickly these changes are happening has only been assessed in a few isolated cases. Starting in 2007, we conducted repeated surveys of non-native plant distributions along mountain roads in 11 regions from 5 continents. We show that over a 5- to 10-year period, the number of non-native species increased on average by approximately 16% per decade across regions. The direction and magnitude of upper range limit shifts depended on elevation across all regions. Supported by a null-model approach accounting for range changes expected by chance alone, we found greater than expected upward shifts at lower/mid elevations in at least seven regions. After accounting for elevation dependence, significant average upward shifts were detected in a further three regions (revealing evidence for upward shifts in 10 of 11 regions). Together, our results show that mountain environments are becoming increasingly exposed to biological invasions, emphasizing the need to monitor and prevent potential biosecurity issues emerging in high-elevation ecosystems.
Fil: Iseli, Evelin. Eidgenossische Technische Hochschule zurich (eth Zurich);
Fil: Chisholm, Chelsea. Eidgenossische Technische Hochschule zurich (eth Zurich);
Fil: Lenoir, Jonathan. Universite de Picardie Jules Verne (universite de Picardie Jules V);
Fil: Haider, Sylvia. Martin Luther University Halle-Wittenberg; Alemania
Fil: Seipel, Tim. University of Montana; Estados Unidos
Fil: Barros, Ana Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Hargreaves, Anna L.. McGill University; Canadá
Fil: Kardol, Paul. Sveriges Lantbruksuniversitet (slu);
Fil: Lembrechts, Jonas J.. Universiteit Antwerp; Bélgica
Fil: McDougall, Keith. No especifíca;
Fil: Alexander, Jake M.. Eidgenossische Technische Hochschule zurich (eth Zurich);
Fil: Rashid, Irfan. University of Kashmir; India
Fil: Rumpf, Sabine B.. Universidad de Basilea; Suiza
Fil: Arévalo, José Ramón. University of La Laguna; España
Fil: Cavieres González, Lohengrin Alexis. Universidad de Concepción; Chile
Fil: Daehler, Curtis. University of Hawaii at Manoa; Estados Unidos
Fil: Dar, Pervaiz A.. No especifíca;
Fil: Endress, Bryan. University of Oregon; Estados Unidos
Fil: Jakobs, Gabi. No especifíca;
Fil: Jiménez, Alejandra. Universidad de Concepción; Chile
Fil: Küffer, Christoph. Eastern Switzerland University of Applied Sciences; Suiza
Fil: Mihoc, Maritza. Universidad de Concepción; Chile
Fil: Milbau, Ann. No especifíca;
Fil: Morgan, John W.. La Trobe University; Australia
Fil: Naylor, Bridgett J.. No especifíca;
Fil: Ratier Backes, Amanda. Martin Luther University Halle-Wittenberg; Alemania
Fil: Reshi, Zafar A.. University of Kashmir; India
Fil: Rew, Lisa J.. University of Montana; Estados Unidos
Fil: Righetti, Damiano. Technical University of Denmark; Dinamarca
Fil: Shannon, James M.. La Trobe University; Australia
Fil: Valencia, Graciela. Universidad de Concepción; Chile
Fil: Walsh, Neville. No especifíca;
Fil: Wright, Genevieve T.. No especifíca;
Fil: Alexander, Jake M.. No especifíca;