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CABI Book Chapter

Environmental impact of invertebrates for biological control of arthropods: methods and risk assessment.

Book cover for Environmental impact of invertebrates for biological control of arthropods: methods and risk assessment.


This book, intended for the scientific community involved in biological control and integrated pest management, commercial companies producing biological control agents, risk assessors and regulatory authorities, compiles the current methodologies used for assessing the environmental impacts of invertebrate biological control agents and guidelines in performing science-based risk assessments requi...

Chapter 5 (Page no: 78)

Risks of interbreeding between species used in biological control and native species, and methods for evaluating their occurrence and impact.

Insect species introduced or augmented for biological control of insect pests may interbreed with native species, which may change fitness or cause evolution, which may in turn alter abundances. By 'interbreeding', we mean any reproductive interactions between species. We review the literature on factors affecting the likelihood of interbreeding between insect species and the impacts when these occur. We discuss phylogenetic relatedness, geographical distribution, spatial and temporal barriers to mating, mate recognition, copulation and sperm use, hybrid inviability and sterility, hybrid speciation, reproductive character displacement and introgression. We concentrate on the risks from introduced species, but we also address the risks from augmentation of native species. We propose methods for pre-introduction or pre-augmentation assessment of the likelihood and potential impact of interbreeding between native species and insects used in biological control. Finally, we propose methods for evaluating the occurrence and impact of interbreeding after insect species are introduced or augmented.

Other chapters from this book

Chapter: 1 (Page no: 1) Current status and constraints in the assessment of non-target effects. Author(s): Babendreier, D. Bigler, F. Kuhlmann, U.
Chapter: 2 (Page no: 15) Selection of non-target species for host specificity testing. Author(s): Kuhlmann, U. Schaffner, U. Mason, P. G.
Chapter: 3 (Page no: 38) Host specificity in arthropod biological control, methods for testing and interpretation of the data. Author(s): Lenteren, J. C. van Cock, M. J. W. Hoffmeister, T. S. Sands, D. P. A.
Chapter: 4 (Page no: 64) Measuring and predicting indirect impacts of biological control: competition, displacement and secondary interactions. Author(s): Messing, R. Roitberg, B. Brodeur, J.
Chapter: 6 (Page no: 98) Assessing the establishment potential of inundative biological control agents. Author(s): Boivin, G. Kölliker-Ott, U. M. Bale, J. Bigler, F.
Chapter: 7 (Page no: 114) Methods for monitoring the dispersal of natural enemies from point source releases associated with augmentative biological control. Author(s): Mills, N. J. Babendreier, D. Loomans, A. J. M.
Chapter: 8 (Page no: 132) Risks of plant damage caused by natural enemies introduced for arthropod biological control. Author(s): Albajes, R. Castañé, C. Gabarra, R. Alomar, Ò.
Chapter: 9 (Page no: 145) Methods for assessment of contaminants of invertebrate biological control agents and associated risks. Author(s): Goettel, M. S. Inglis, G. D.
Chapter: 10 (Page no: 166) Post-release evaluation of non-target effects of biological control agents. Author(s): Barratt, B. I. P. Blossey, B. Hokkanen, H. M. T.
Chapter: 11 (Page no: 187) Molecular methods for the identification of biological control agents at the species and strain level. Author(s): Stouthamer, R.
Chapter: 12 (Page no: 202) The usefulness of the ecoregion concept for safer import of invertebrate biological control agents. Author(s): Cock, M. J. W. Kuhlmann, U. Schaffner, U. Bigler, F. Babendreier, D.
Chapter: 13 (Page no: 222) Statistical tools to improve the quality of experiments and data analysis for assessing non-target effects. Author(s): Hoffmeister, T. S. Babendreier, D. Wajnberg, E.
Chapter: 14 (Page no: 241) Principles of environmental risk assessment with emphasis on the New Zealand perspective. Author(s): Abdul Moeed Hickson, R. Barratt, B. I. P.
Chapter: 15 (Page no: 254) Environmental risk assessment: methods for comprehensive evaluation and quick scan. Author(s): Lenteren, J. C. van Loomans, A. J. M.
Chapter: 16 (Page no: 273) Balancing environmental risks and benefits: a basic approach. Author(s): Bigler, F. Kölliker-Ott, U.