Incorporation of an invasive plant into a native insect herbivore food web

PeerJ

article

Menno Schilthuizen¹  Lúcia P. Santos Pimenta²  Youri Lammers¹  Peter J. Steenbergen²  Marco Flohil⁵  Nils G.P. Beveridge¹  Pieter T. van Duijn¹  Marjolein M. Meulblok¹  Nils Sosef¹  Robin van de Ven¹  Ralf Werring¹  Kevin K. Beentjes⁷  Kim Meijer³  Rutger A. Vos¹  Klaas Vrieling²  Barbara Gravendeel¹  Young Choi²  Robert Verpoorte²  Chris Smit³  Leo W. Beukeboom³ 

[1] Endless Forms group, Naturalis Biodiversity Center;Institute for Biology Leiden, Leiden University;Groningen Institute for Evolutionary Life Sciences, University of Groningen;Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais;ServiceXS;University of Applied Sciences Leiden;Biodiversity Discovery group, Naturalis Biodiversity Center;IBED, University of Amsterdam;Natural Products Laboratory, Leiden University

关键词: Adaptation;    Exotic plants;    Insect herbivores;    Prunus serotina;    Secondary metabolites;   

DOI  :  10.7717/peerj.1954

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

The integration of invasive species into native food webs represent multifarious dynamics of ecological and evolutionary processes. We document incorporation of Prunus serotina (black cherry) into native insect food webs. We find that P. serotina harbours a herbivore community less dense but more diverse than its native relative, P. padus (bird cherry), with similar proportions of specialists and generalists. While herbivory on P. padus remained stable over the past century, that on P. serotina gradually doubled. We show that P. serotina may have evolved changes in investment in cyanogenic glycosides compared with its native range. In the leaf beetle Gonioctena quinquepunctata, recently shifted from native Sorbus aucuparia to P. serotina, we find divergent host preferences on Sorbus- versus Prunus-derived populations, and weak host-specific differentiation among 380 individuals genotyped for 119 SNP loci. We conclude that evolutionary processes may generate a specialized herbivore community on an invasive plant, allowing prognoses of reduced invasiveness over time. On the basis of the results presented here, we would like to caution that manual control might have the adverse effect of a slowing down of processes of adaptation, and a delay in the decline of the invasive character of P. serotina.

【 授权许可】

CC BY