Abstract
A central question in invasion ecology is how non-native species develop sustainable populations from small numbers of introduced founders. As biotic resistance, propagule pressure and trophic subsidises affect the outcomes of introductions of non-native fish, their individual and combined effects were tested in experimental mesocosms using the model species Pseudorasbora parva, a highly invasive fish in Europe. Their effects were measured as the number of 0+ P. parva present per treatment at the end of one reproductive season. The control started with 8 mature individuals (equal sex ratio). There were seven treatments, comprising propagule pressure (16 individuals), biotic resistance (presence of a coexisting fish) and trophic subsidies (daily release of fishmeal pellets), and their combinations. Compared to the control, biotic resistance resulted in significantly reduced 0+ fish numbers, with stable isotope analysis (δ13C, δ15N; SIA) suggesting this was due to facultative piscivory by the coexisting fish. There were significantly elevated 0+ fish numbers in the trophic subsidy, with SIA suggesting the diet of co-existing fish now primary comprised the subsidy. There was no significant difference in 0+ fish number between the control and propagule pressure treatment. Whilst the effect of biotic resistance on 0+ fish number was reduced slightly with propagule pressure and also when the trophic subsidy was available, there were significantly increased numbers of 0+ fish present in the treatment where they acted in combination. Thus, their effects appeared synergistic, overcoming the biotic resistance and enabling greater numbers of 0+ P. parva to survive until the end of the reproductive season.
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Andreou D, Feist SW, Stone D, Bateman K, Gozlan RE (2011) First occurrence and associated pathology of Sphaerothecum destruens in cyprinids. Dis Aquat Org 95:145–151
Barney JN, Whitlow TH (2008) A unifying framework for biological invasions: the state factor model. Biol Invasions 10:259–272
Basic T, Britton JR, Jackson MC, Reading P, Grey J (2014) Angling baits and invasive crayfish as important trophic subsidies for a large cyprinid fish. Aquat Sci. doi:10.1007/s0002701403707
Britton JR (2012) Testing strength of biotic resistance against an introduced fish: interspecific competition or predation through facultative piscivory. PLoS ONE 7:e31707
Britton JR, Gozlan RE (2013) How many founders for a biological invasion? Predicting introduction outcomes from propagule pressure. Ecology 94:2558–2566
Britton JR, Pegg J, Gozlan RE (2011) Quantifying imperfect detection in an invasive pest fish and the implications for conservation management. Biol Conserv 144:2177–2181
Brown JE, Stepien CA (2008) Ancient divisions, recent expansions: phylogeography and population genetics of the round goby Apollonia melanostoma. Mol Ecol 17:2598–2615
Byun C, de Blois S, Brisson J (2014) Interactions between abiotic constraint, propagule pressure, and biotic resistance regulate plant invasion. Oecologia. doi:10.1007/s004420143188z
Catford JA, Jansson R, Nilsson C (2009) Reducing redundancy in invasion ecology by integrating hypotheses into a single theoretical framework. Divers Distrib 15:22–40
Clark GF, Johnston EL (2009) Propagule pressure and disturbance interact to overcome biotic resistance of marine invertebrate communities. Oikos 118:1679–1686
Clark GF, Johnston EL (2011) Temporal change in the diversity invasibility relationship in the presence of a disturbance regime. Ecol Lett 14:52–57
Dossena M, Yvon-Durocher G, Grey J, Montoya JM, Perkins DM, Trimmer M, Woodard G (2012) Warming alters community size structure and ecosystem functioning. Proc R Soc Lond B Bio 279:3011–3019
Gozlan RE, St-Hilaire S, Feist SW, Martin P, Kent ML (2005) Biodiversity: disease threat to European fish. Nature 435:1046
Gozlan RE, Whipps C, Andreou D, Arkush K (2009) Identification of a rosette-like agent as Sphaerothecum destruens, a multi-host fish pathogen. Int J Parasitol 39:1055–1058
Gozlan RE, Andreou D, Asaeda T, Beyer K, Bouhadad R, Burnard D, Caiola N, Cakic P, Djikanovic V, Esmaeili HR et al (2010) Pancontinental invasion of Pseudorasbora parva: towards a better understanding of freshwater fish invasions. Fish Fish 11:315–340
Grey J, Waldron S, Hutchinson R (2004) The utility of carbon and nitrogen isotope analyses to trace contributions from fish farms to the receiving communities of freshwater lakes: a Pilot Study in Esthwaite Water, UK. Hydrobiologia 524:253–262
Jackson M, Allen R, Pegg J, Britton JR (2013) Do trophic subsidies affect the outcome of introductions of a nonnative freshwater fish? Freshw Biol 58:2144–2153
Korsu K, Huusko A, Muotka T (2009) Does the introduced brook trout (Salvelinus fontinalis) affect growth of the native brown trout (Salmo trutta)? Naturwissenschaften 96:347–353
Leung B, Mandrak NE (2007) The risk of establishment of aquatic invasive species: joining invasibility and propagule pressure. Proc R Soc Biol 274:2603–2609
Levine JM, Adler PB, Yelenik SG (2004) A meta-analysis of biotic resistance to exotic plant invasions. Ecol Lett 7:975–989
Lockwood JL, Cassey P, Blackburn T (2005) The role of propagule pressure in explaining species invasions. Trends Ecol Evol 20:223–228
Lockwood JL, Cassey P, Blackburn T (2009) The more you introduce the more you get: the role of colonization pressure and propagule pressure in invasion ecology. Divers Distrib 15:904–910
Olsson K, Stenroth P, Nyström P, Graneli W (2009) Invasions and niche width: does niche width of an introduced crayfish differ from a native crayfish? Freshw Biol 54:1731–1740
Pollux BJA, Korosi A (2006) On the occurrence of the Asiatic cyprinid Pseudorasbora parva in the Netherlands. J Fish Biol 69:1575–1580
Post DM (2002) Using stable isotopes to estimate trophic position: models, methods, and assumptions. Ecology 83:703–718
R Development Core Team (2013) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3900051070, URL http://www.Rproject.org/
Simberloff D (2009) The role of propagule pressure in biological invasions. Ann Rev Ecol Evol Sys 40:91–102
Simon A, Britton JR, Gozlan RE, van Oosterhout C, Volckaert FAP, Hänfling B (2011) Invasive Pseudorasbora parva in Europe originate from the single introduction of an admixed source population followed by long-distance dispersal. PLoS ONE 6:e18560
Simon A, Britton JR, Gozlan RE, van Oosterhout C, Volckaert FAP, Hänfling B (2014) Human induced stepping stone colonisation of an admixed founder population: the spread of topmouth gudgeon (Pseudorasbora parva) in Europe. Aquat Sci 77:17–25
Spivak AC, Vanni MJ, Mette EM (2011) Moving on up: can results from simple aquatic mesocosm experiments be applied across broad spatial scales? Freshw Biol 56:279–291
Villéger S, Blanchet S, Beauchard O, Oberdorff T, Brosse S (2011) Homogenization patterns of the world’s freshwater fish fauna. Proc Nat Acad Sci 108:18003–18008
Warren RJ, Bahn V, Bradford MA (2012) The interaction between propagule pressure, habitat suitability and density-dependent reproduction in species invasion. Oikos 121:874–881
Acknowledgments
ARN and JRB were supported by the ‘RINSE’ project (Interreg IVA 2 Seas Programme); TNQT was supported by TECHNO, an EU Erasmus Mundus programme.
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Britton, J.R., Tran, T.N.Q. & Ruiz-Navarro, A. Synergistic effects of propagule pressure and trophic subsidies overcome biotic resistance to a non-native fish. Biol Invasions 17, 3125–3131 (2015). https://doi.org/10.1007/s10530-015-0938-8
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DOI: https://doi.org/10.1007/s10530-015-0938-8