Temperature explains variable spread rates of the invasive woodwasp Sirex noctilio in the Southern Hemisphere

Autor: M. Victoria Lantschner, Andrew M. Liebhold, Jeffrey R. Garnas, Philip Croft, Juan C. Corley, Angus J. Carnegie, José M. Villacide
Rok vydání: 2013
Předmět:
Zdroj: Biological Invasions. 16:329-339
ISSN: 1573-1464
1387-3547
DOI: 10.1007/s10530-013-0521-0
Popis: The frequency of introductions of non-indigenous forest insects into new habitats is increasing worldwide, often with profoundly adverse consequences on natural and plantation forest ecosystems. Understanding rates and patterns of spread of invasive forest insects is important for predicting when and where these species will expand their geographical range, with the potential to improve mitigation strategies. The woodwasp Sirex noctilio is a damaging invasive forest insect that kills numerous species of Pinus. Despite encountering highly variable eco-climatic conditions, S. noctilio has arrived and established in exotic pine forest production areas throughout the Southern Hemisphere. In this study, we compiled historical records of S. noctilio invasion to compare spread rates among eight contrasting eco-climatic regions in the Southern Hemisphere and to explore how spread rate is predicted by landscape variation in climate, habitat characteristics, and anthropogenic effects. Spread rates for S. noctilio varied considerably among the invaded regions, ranging from 12 to 82 km per year. Among regions, spread rates of S. noctilio increased with increasing mean annual temperature and isothermality. We hypothesize that temperature may directly or indirectly influence S. noctilio population growth and dispersal, thereby influencing spread rates. Fil: Lantschner, María Victoria. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte; Argentina Fil: Villacide, José María. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte; Argentina Fil: Garnas, Jeffrey R.. University of Pretoria, Forestry and Agricultural Biotechnology Institute; Sudáfrica Fil: Croft, Philip. Institute for Commercial Forestry Research; Sudáfrica Fil: Carnegie, Angus J.. Forest Science Centre, NSW Department of Primary Industries; Australia Fil: Liebhol, Andrew M.. Northern Research Station; Estados Unidos Fil: Corley, Juan Carlos. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte; Argentina
Databáze: OpenAIRE
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