Evolutionary history predicts high‐impact invasions by herbivorous insects

Ecology and Evolution

卷:9

Kamal J. K. Gandhi¹  Ruth A. Hufbauer²  Ashley N. Schulz³  Travis D. Marsico³  Matthew P. Ayres⁴  Jessica Gurevitch⁵  Kenneth F. Raffa⁶  Daniel R. Uden⁷  Craig R. Allen⁸  Nathan P. Havill⁹  Patrick C. Tobin¹⁰  Angela M. Mech¹⁰  Kathryn A. Thomas¹¹  Daniel A. Herms¹²  Andrew M. Liebhold¹³ 

[1] D.B. Warnell School of Forestry and Natural Resources University of Georgia Athens Georgia;

[2] Department of Bioagricultural Science and Pest Management Colorado State University Fort Collins Colorado;

[3] Department of Biological Sciences Arkansas State University Jonesboro Arkansas;

[4] Department of Biological Sciences Dartmouth College Hanover New Hampshire;

[5] Department of Ecology and Evolution Stony Brook University Stony Brook New York;

[6] Department of Entomology University of Wisconsin Madison Wisconsin;

[7] Nebraska Cooperative Fish and Wildlife Unit Department of Agronomy and Horticulture School of Natural Resources University of Nebraska‐Lincoln Lincoln Nebraska;

[8] Nebraska Cooperative Fish and Wildlife Unit School of Natural Resources U.S. Geological Survey University of Nebraska‐Lincoln Lincoln Nebraska;

[9] Northern Research Station USDA Forest Service Hamden Connecticut;

[10] School of Environmental and Forest Sciences University of Washington Seattle Washington;

[11] Southwest Biological Science Center U.S. Geological Survey Tucson Arizona;

[12] The Davey Tree Expert Company Kent Ohio;

[13] USDA Forest Service Northern Research Station Morgantown West Virginia;

关键词: evolutionary history;    herbivore;    invasive insect;    non‐native species;    risk assessment;   

DOI  :  10.1002/ece3.5709

来源: DOAJ

【 摘 要 】

Abstract A long‐standing goal of invasion biology is to identify factors driving highly variable impacts of non‐native species. Although hypotheses exist that emphasize the role of evolutionary history (e.g., enemy release hypothesis & defense‐free space hypothesis), predicting the impact of non‐native herbivorous insects has eluded scientists for over a century. Using a census of all 58 non‐native conifer‐specialist insects in North America, we quantified the contribution of over 25 factors that could affect the impact they have on their novel hosts, including insect traits (fecundity, voltinism, native range, etc.), host traits (shade tolerance, growth rate, wood density, etc.), and evolutionary relationships (between native and novel hosts and insects). We discovered that divergence times between native and novel hosts, the shade and drought tolerance of the novel host, and the presence of a coevolved congener on a shared host, were more predictive of impact than the traits of the invading insect. These factors built upon each other to strengthen our ability to predict the risk of a non‐native insect becoming invasive. This research is the first to empirically support historically assumed hypotheses about the importance of evolutionary history as a major driver of impact of non‐native herbivorous insects. Our novel, integrated model predicts whether a non‐native insect not yet present in North America will have a one in 6.5 to a one in 2,858 chance of causing widespread mortality of a conifer species if established (R2 = 0.91) Synthesis and applications. With this advancement, the risk to other conifer host species and regions can be assessed, and regulatory and pest management efforts can be more efficiently prioritized.

【 授权许可】

Unknown