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Freedom to move: Arctic caterpillar (Lepidoptera) growth rate increases with access to new willows (Salicaceae)

Published online by Cambridge University Press:  29 April 2016

Christopher J. Greyson-Gaito ,
Matthew A. Barbour ,
Mariano A. Rodriguez-Cabal ,
Gregory M. Crutsinger  and
Gregory H.R. Henry
Christopher J. Greyson-Gaito*
Affiliation:
Department of Zoology and the Biodiversity Research Centre, University of British Columbia, University Blvd, Vancouver, British Columbia, V6T 1Z4, Canada Department of Geography and the Biodiversity Research Centre, University of British Columbia, 1984 West Mall, Vancouver, British Columbia, V6T 1Z2, Canada
Matthew A. Barbour
Affiliation:
Department of Zoology and the Biodiversity Research Centre, University of British Columbia, University Blvd, Vancouver, British Columbia, V6T 1Z4, Canada
Mariano A. Rodriguez-Cabal
Affiliation:
Department of Zoology and the Biodiversity Research Centre, University of British Columbia, University Blvd, Vancouver, British Columbia, V6T 1Z4, Canada Grupo de Ecologia de Invasiones, Instituto de Investigaciones en Biodiversidad y Medioambiente - Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional del Comahue-Av. De los Pioneros, Bariloche Rio Negro, CP 8400, Argentina
Gregory M. Crutsinger
Affiliation:
Department of Zoology and the Biodiversity Research Centre, University of British Columbia, University Blvd, Vancouver, British Columbia, V6T 1Z4, Canada
Gregory H.R. Henry
Affiliation:
Department of Geography and the Biodiversity Research Centre, University of British Columbia, 1984 West Mall, Vancouver, British Columbia, V6T 1Z2, Canada
*
1 Corresponding author (e-mail: chrisgg@alumni.ubc.ca).
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Abstract

Movement between host plants during the growing season is a common behaviour among insect herbivores, although the mechanisms promoting these movements are poorly understood for many systems. Two possible reasons why insect herbivores relocate include compensating for host plant quantity and/or quality changes and the avoidance of natural enemies. The Arctic caterpillar (Gynaephora groenlandica (Wocke); Lepidoptera: Lymantriidae) moves several metres each day, feeds on its patchily distributed host plant, Arctic willow (Salix arctica Pallas; Salicaceae), and has two main natural enemies, the parasitoids Exorista thula Wood (Diptera: Tachinidae) and Hyposoter diechmanni (Nielsen) (Hymenoptera: Ichneumonidae). We physically moved caterpillars between Arctic willows and restricted other caterpillar individuals each to a single willow throughout the active period of Arctic caterpillars. We found that growth rate, herbivory rate, and the proportion of available leaf fascicles eaten were higher for experimentally moved caterpillars. Parasitoid abundances were low and did not differ between experimentally moved and stationary caterpillars. Taken together, our study addresses the bottom–up and top–down controls on insect herbivore movement during the short duration of the growing season in the Arctic. Our results suggest that caterpillars are likely moving to new willow shrubs to access high quality resources.

Information

Type
Behaviour & Ecology
Information
The Canadian Entomologist , Volume 148 , Issue 6 , December 2016 , pp. 673 - 682
Copyright
© Entomological Society of Canada 2016 

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Footnotes

Subject Editor: Chris Schmidt

References

Abràmoff, M.D., Magalhães, P.J., and Ram, S.J. 2004. Image processing with ImageJ. Biophotonics International, 11: 36–42.Google Scholar
Agrawal, A.A. 1999. Induced responses to herbivory in wild radish: effects on several herbivores and plant fitness. Ecology, 80: 1713–1723.CrossRefGoogle Scholar
Barrio, I.C., Schmidt, B.C., Cannings, S., and Hik, D.S. 2013. First records of the Arctic moth Gynaephora groenlandica (Wocke) south of the Arctic Circle: a new alpine subspecies. Arctic, 66: 429–434.Google Scholar
Berg, T.B. 2003. Catechin content and consumption ratio of the collared lemming. Oecologia, 135: 242–249.Google Scholar
Charnov, E.L. 1976. Optimal foraging, the marginal value theorem. Theoretical Population Biology, 9: 129–136.Google Scholar
Cornelissen, J.H.C., Lavorel, S., Garnier, E., Díaz, S., Buchmann, N., Gurvich, D.E., et al. 2003. A handbook of protocols for standardised and easy measurement of plant functional traits worldwide. Australian Journal of Botany, 51: 335–380.CrossRefGoogle Scholar
Cronin, J.T. 2003. Movement and spatial population structure of a prairie planthopper. Ecology, 84: 1179–1188.Google Scholar
Cruz-Rivera, E. and Hay, M.E. 2001. Macroalgal traits and the feeding and fitness of an herbivorous amphipod: the roles of selectivity, mixing, and compensation. Marine Ecology Progress Series, 218: 249–266.Google Scholar
Denno, R.F., Gratton, C., Peterson, M.A., Langellotto, G.A., Finke, D.L., and Huberty, A.F. 2002. Bottom-up forces mediate natural-enemy impact in a phytophagous insect community. Ecology, 83: 1443–1458.Google Scholar
Dethier, V.G. 1989. Patterns of locomotion of polyphagous arctiid caterpillars in relation to foraging. Ecological Entomology, 14: 375–386.Google Scholar
Ellison, G.N. and Gotelli, N.J. 2004. A primer of ecological statistics. Sinauer, Sunderland, Massachusetts, United States of America.Google Scholar
Finidori-Logli, V., Bagnères, A.-G., and Clément, J.-L. 1996. Role of plant volatiles in the search for a host by parasitoid Diglyphus isaea (Hymenoptera: Eulophidae). Journal of Chemical Ecology, 22: 541–558.Google Scholar
Flores, L., Larrañaga, A., and Elosegi, A. 2014. Compensatory feeding of a stream detritivore alleviates the effects of poor food quality when enough food is supplied. Freshwater Science, 33: 134–141.Google Scholar
Greeney, H.F., Dyer, L.A., and Smilanich, A.M. 2012. Feeding by lepidopteran larvae is dangerous: a review of caterpillars’ chemical, physiological, morphological, and behavioral defenses against natural enemies. Invertebrate Survival Journal, 9: 7–34.Google Scholar
Greyson-Gaito, C.J., Barbour, M.A., Rodriguez-Cabal, M.A., Crutsinger, G.M., and Henry, G.H.R. 2015. Effect of movement between Salix arctica individuals on Gynaephora groenlandica caterpillar growth rates at Alexandra Fiord, Nunavut, Canada, 2013 [data file and metadata]. Available from https://www.polardata.ca/pdcsearch/PDCSearch.jsp?doi_id=12515 [accessed 19 March 2016].Google Scholar
Gruner, D.S. 2004. Attenuation of top-down and bottom-up forces in a complex terrestrial community. Ecology, 85: 3010–3022.Google Scholar
Gutbrodt, B., Dorn, S., Unsicker, S.B., and Mody, K. 2012. Species-specific responses of herbivores to within-plant and environmentally mediated between-plant variability in plant chemistry. Chemoecology, 22: 101–111.Google Scholar
Heinrich, B. 1979. Foraging strategies of caterpillars. Oecologia, 42: 325–337.Google Scholar
Henry, G.H.R., Freedman, B., and Svoboda, J. 1986. Vegetated areas and muskox populations in east-central Ellesmere Island. Arctic, 39: 78–81.CrossRefGoogle Scholar
Hulten, E. 1968. Flora of Alaska and neighboring territories. Stanford University Press, Stanford, California, United States of America.Google Scholar
Jackman, S. 2015. pscl: classes and methods for R developed in the Political Science Computational Laboratory, Stanford University. R package version 1.4.9. Department of Political Science, Stanford University, Stanford, California, United States of America.Google Scholar
Johns, R., Ozaki, K., and Tobita, H. 2012. Dietary mixing within the crown of a deciduous conifer enhances the fitness of a specialist sawfly. Animal Behaviour, 84: 1393–1400.Google Scholar
Jones, M.H., MacDonald, S.E., and Henry, G.H.R. 1999. Sex- and habitat-specific responses of a high Arctic willow, Salix arctica, to experimental climate change. Oikos, 87: 129–138.Google Scholar
Karban, R., Karban, C., Huntzinger, M., Pearse, I., and Crutsinger, G. 2010. Diet mixing enhances the performance of a generalist caterpillar, Platyprepia virginalis . Ecological Entomology, 35: 92–99.CrossRefGoogle Scholar
Karban, R. and Myers, J.H. 1989. Induced plant responses to herbivory. Annual Review of Ecology and Systematics, 20: 331–348.Google Scholar
Kessler, A. 2001. Defensive function of herbivore-induced plant volatile emissions in nature. Science, 291: 2141–2144.CrossRefGoogle ScholarPubMed
Kevan, P.G. and Kukal, O. 1993. Corrigendum: a balanced life table for Gynaephora groenlandica (Lepidoptera: Lymantriidae), a long-lived high Arctic insect, and implications for the stability of its populations. Canadian Journal of Zoology, 71: 1699–1701.CrossRefGoogle Scholar
Kukal, O. 1995. Winter mortality and the function of larval hibernacula during the 14-year life cycle of an Arctic moth, Gynaephora groenlandica . Canadian Journal of Zoology, 73: 657–662.Google Scholar
Kukal, O. and Kevan, P.G. 1987. The influence of parasitism on the life history of a High Arctic insect, Gynaephora groenlandica (Wöcke) (Lepidoptera: Lymantriidae). Canadian Journal of Zoology, 65: 156–163.Google Scholar
Lorch, P.D., Sword, G.A., Gwynne, D.T., and Anderson, G.L. 2005. Radiotelemetry reveals differences in individual movement patterns between outbreak and non-outbreak mormon cricket populations. Ecological Entomology, 30: 548–555.Google Scholar
Loxdale, H.D. and Lushai, G. 1999. Slaves of the environment: the movement of herbivorous insects in relation to their ecology and genotype. Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 354: 1479–1495.Google Scholar
Mody, K., Unsicker, S.B., and Linsenmair, K.E. 2007. Fitness related diet-mixing by intraspecific host-plant-switching of specialist insect herbivores. Ecology, 88: 1012–1020.CrossRefGoogle ScholarPubMed
Morehead, S.A. and Feener, D.H. 2000. Visual and chemical cues used in host location and acceptance by a Dipteran parasitoid. Journal of Insect Behavior, 13: 613–625.Google Scholar
Morewood, D.W. 1999. Temperature/development relationships and life history strategies of Arctic Gynaephora species (Lepidoptera: Lymantriidae) and their insect parasitoids (Hymenoptera: Ichneumonidae and Diptera: Tachinidae), with reference to predicted global warming. Ph.D. dissertation University of Victoria, Victoria, British Columbia, Canada. Available from http://www.nlc-bnc.ca/obj/s4/f2/dsk2/ftp02/NQ37356.pdf [accessed 24 March 2016].Google Scholar
Morewood, D.W. and Ring, R.A. 1998. Revision of the life history of the High Arctic moth Gynaephora groenlandica (Wöcke) (Lepidoptera: Lymantriidae). Canadian Journal of Zoology, 76: 1371–1381.CrossRefGoogle Scholar
Muc, M., Freedman, B., and Svoboda, J. 1989. Vascular plant communities of a polar oasis at Alexandra Fiord (79 N), Ellesmere Island, Canada. Canadian Journal of Botany, 67: 1126–1136.Google Scholar
Nykänen, H. and Koricheva, J. 2004. Damage-induced changes in woody plants and their effects on insect herbivore performance: a meta-analysis. Oikos, 104: 247–268.Google Scholar
Palo, R.T. 1984. Distribution of birch (Betula spp.), willow (Salix spp.), and poplar (Populus spp.) secondary metabolites and their potential role as chemical defense against herbivores. Journal of Chemical Ecology, 10: 499–520.Google Scholar
Pearse, I.S., Hughes, K., Shiojiri, K., Ishizaki, S., and Karban, R. 2013. Interplant volatile signaling in willows: revisiting the original talking trees. Oecologia, 172: 869–875.Google Scholar
Puckett, R.T., Calixto, A., Barr, C.L., and Harris, M. 2007. Sticky traps for monitoring Pseudacteon parasitoids of Solenopsis fire ants. Environmental Entomology, 36: 584–588.Google Scholar
R Core Team. 2012. R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. R program version 3.2.4. Available from http://www.R-project.org [accessed 19 March 2016].Google Scholar
Rodriguez-Cabal, M.A., Barrios-Garcia, M.N., Amico, G.C., Aizen, M.A., and Sanders, N.J. 2013. Node-by-node disassembly of a mutualistic network driven by species introductions. Proceedings of the National Academy of Sciences, 110: 16503–16507.Google Scholar
Sime, K.R. 2005. The natural history of the parasitic wasp Trogus pennator (Hymenoptera: Ichneumonidae): host-finding behaviour and a possible host countermeasure. Journal of Natural History, 39: 1367–1380.Google Scholar
Singer, M. and Stireman, J. 2001. How foraging tactics determine host-plant use by a polyphagous caterpillar. Oecologia, 129: 98–105.Google Scholar
Steltzer, H., Hufbauer, R.A., Welker, J.M., Casalis, M., Sullivan, P.F., and Chimner, R. 2008. Frequent sexual reproduction and high intraspecific variation in Salix arctica: implications for a terrestrial feedback to climate change in the High Arctic. Journal of Geophysical Research, 113: 1–11, (G3S10).Google Scholar
Strathdee, A.T. and Bale, J.S. 1998. Life on the edge: insect ecology in Arctic environments. Annual Review of Entomology, 43: 85–106.Google Scholar
Van Dam, N.M, Hadwich, K., and Baldwin, I.T. 2000. Induced responses in Nicotiana attenuata affect behavior and growth of the specialist herbivore Manduca sexta . Oecologia, 122: 371–379.Google Scholar
Várkonyi, G. and Roslin, T. 2013. Freezing cold yet diverse: dissecting a High-Arctic parasitoid community associated with Lepidoptera hosts. The Canadian Entomologist, 145: 193–218.CrossRefGoogle Scholar
Waldbauer, G.P. 1968. The consumption & utilisation of food by insects. Advances in Insect Physiology, 5: 229–288.Google Scholar
Wickham, H. 2009. ggplot2: elegant graphics for data analysis. Springer, New York, New York, United States of America. http://ggplot2.org/book [accessed 19 March 2016].Google Scholar
Wilson, J.W. 1964. Annual growth of Salix arctica in the High-Arctic. Annals of Botany, 28: 71–76.Google Scholar