Biological Invasions

, Volume 15, Issue 2, pp 417–427 | Cite as

Environmental stress alters native-nonnative relationships at the community scale

Original Paper

Abstract

The invasion of natural habitats by nonnative species is affected by both native biodiversity and environmental conditions; however few tests of facilitation between native community members and nonnative species have been conducted along disturbance and stress gradients. There is strong evidence for an increase in facilitation between native plant species with increasing levels of natural environmental stress, however it is unknown whether these same positive interactions occur between nonnative invaders and native communities. I investigated the effects of natural stress on community interactions between native heathland species and nonnative species with two field studies conducted at the landscape and community scale. At the landscape scale of investigation, nonnative species richness was positively related to native species richness. At the community level, nonnative invaders experienced facilitation with natives in the most stressful zones, whereas they experienced competition with native plants in the less stressful zones of the heathlands. Due to the observational nature of the landscape scale data, it is unclear whether nonnative diversity levels are responding positively to extrinsic factors or to native biodiversity. The experimental component of this research suggests that native community members may ameliorate stressful environmental conditions and facilitate invasion into high stress areas. I present a conceptual model which is a modification of the Shea and Chesson diversity-invasibility model and includes both facilitation as well as competition between the native community and nonnative invaders at the community level, summing to an overall positive relationship at the landscape scale.

Keywords

Facilitation Competition Heathlands Stress Diversity-invasibility 

Notes

Acknowledgments

Financial support was provided by the National Parks Ecological Research Fellowship (A program funded by the National Park Foundation through a generous grant from the A. W. Mellon Foundation). I sincerely appreciate field assistance from E. Largay, K.A. Joseph, S.A. Clark, A. R. Collins, K. Ivy, R.G. Lohnes, and B. Ozimec. I thank C. Crain, C. J. Lortie, and anonymous reviewers for commenting on a previous version of this paper. D. Nickerson provided statistical advice. Verizon communications of Barnstable County provided the multi-colored telephone wires used for plant tags.

References

  1. Altieri AH, van Wesenbeeck BK, Bertness MD, Silliman BR (2010) Facilitation cascade drives positive relationship between native biodiversity and invasion success. Ecology 91:1269–1275PubMedCrossRefGoogle Scholar
  2. Arredondo-Nunez A, Badano EI, Bustamante RO (2009) How beneficial are nurse plants? A meta-analysis of the effects of cushion plants on high-Andean plant communities. Communit Ecol 10:1–6CrossRefGoogle Scholar
  3. Barbour MG, Dejong TM (1977) Response of west coast beach taxa to salt spray, seawater inundation, and soil salinity. Bull Torrey Bot Club 104:29–34CrossRefGoogle Scholar
  4. Belote RT, Jones RH, Hood SM, Wender BW (2008) Diversity-invasibility across an experimental disturbance gradient in Appalachian forests. Ecology 89:183–192PubMedCrossRefGoogle Scholar
  5. Bertness MD (1998) Searching for the role of positive interactions in plant communities. Trends Ecol Evol 13:133–134PubMedCrossRefGoogle Scholar
  6. Bertness MD, Callaway R (1994) Positive interactions in communities. Trends Ecol Evol 9:191–193PubMedCrossRefGoogle Scholar
  7. Callaway RM (1997) Positive interactions in plant communities and the individualistic-continuum concept. Oecologia 112:143–149CrossRefGoogle Scholar
  8. Callaway RM, Brooker RW, Choler P, Kikvidze Z, Lortie CJ, Michalet R, Paolini L, Pugnaire FL, Newingham B, Aschehoug ET, Armas C, Kikodze D, Cook BJ (2002) Positive interactions among alpine plants increase with stress. Nature 417:844–848PubMedCrossRefGoogle Scholar
  9. Davies KF, Chesson P, Harrison S, Inouye BD, Melbourne BA, Rice KJ (2005) Spatial heterogeneity explains the scale dependence of the native-exotic diversity relationship. Ecology 86:1602–1610CrossRefGoogle Scholar
  10. Davies KF, Harrison S, Safford HD, Viers JH (2007) Productivity alters the scale dependence of the diversity-invasibility relationship. Ecology 88:1940–1947PubMedCrossRefGoogle Scholar
  11. Fletcher PC, Roffinoli RJ (1986) Soil survey of Dukes County, Massachusetts. US Department of Agriculture Soil Conservation Service, Washington, DCGoogle Scholar
  12. Fridley JD, Stachowicz JJ, Naeem S, Sax DF, Seabloom EW, Smith MD, Stohlgren TJ, Tilman D, Von Holle B (2007) The invasion paradox: reconciling pattern and process in species invasions. Ecology 88:3–17PubMedCrossRefGoogle Scholar
  13. Gleason HA, Cronquist A (1991) Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, BronxGoogle Scholar
  14. Griffiths ME (2006) Salt spray and edaphic factors maintain dwarf stature and community composition in coastal sandplain heathlands. Plant Ecol 186:69–86CrossRefGoogle Scholar
  15. Griffiths ME, Orians CM (2003) Salt spray differentially affects water status, necrosis, and growth in coastal sandplain heathland species. Am J Bot 90:1188–1196PubMedCrossRefGoogle Scholar
  16. Griffiths ME, Keith RP, Orians CM (2006) Direct and indirect effects of salt spray and fire on coastal heathland plant physiology and community composition. Rhodora 108:32–42CrossRefGoogle Scholar
  17. Grime JP (1977) Evidence for existence of 3 primary strategies in plants and its relevance to ecological and evolutionary theory. Am Nat 111:1169–1194CrossRefGoogle Scholar
  18. Levine JM, D’ Antonio CM (1999) Elton revisited: a review of evidence linking diversity and invasibility. Oikos 87:15–26CrossRefGoogle Scholar
  19. Lilley PL, Vellend M (2009) Negative native-exotic diversity relationship in oak savannas explained by human influence and climate. Oikos 118:1373–1382CrossRefGoogle Scholar
  20. Lortie CJ, Brooker RW, Choler P, Kikvidze Z, Michalet R, Pugnaire FI, Callaway RM (2004) Rethinking plant community theory. Oikos 107:433–438CrossRefGoogle Scholar
  21. Maestre FT, Callaway RM, Valladares F, Lortie CJ (2009) Refining the stress-gradient hypothesis for competition and facilitation in plant communities. J Ecol 97:199–205CrossRefGoogle Scholar
  22. Markham JH, Chanway CP (1996) Measuring plant neighbour effects. Funct Ecol 10:548–549Google Scholar
  23. Melbourne BA, Cornell HV, Davies KF, Dugaw CJ, Elmendorf S, Freestone AL, Hall RJ, Harrison S, Hastings A, Holland M, Holyoak M, Lambrinos J, Moore K, Yokomizo H (2007) Invasion in a heterogeneous world: resistance, coexistence or hostile takeover? Ecol Lett 10:77–94PubMedCrossRefGoogle Scholar
  24. Oksanen J (1996) Is the humped relationship between species richness and biomass an artefact due to plot size? J Ecol 84:293–295CrossRefGoogle Scholar
  25. Pauchard A, Shea K (2006) Integrating the study of non-native plant invasions across spatial scales. Biol Invasions 8:399–413CrossRefGoogle Scholar
  26. Sandel B, Corbin JD (2010) Scale, disturbance and productivity control the native-exotic richness relationship. Oikos 119:1281–1290CrossRefGoogle Scholar
  27. Sargent RD, Ackerly DD (2008) Plant-pollinator interactions and the assembly of plant communities. Trends Ecol Evol 23:123–130PubMedCrossRefGoogle Scholar
  28. Shea K, Chesson P (2002) Community ecology theory as a framework for biological invasions. Trends Ecol Evol 17:170–176CrossRefGoogle Scholar
  29. Sorrie BA, Somers P (1999) The vascular plants of Massachusetts: a county checklist. Massachusetts Division of Fisheries and Wildlife Natural Heritage & Endangered Species Program, WestboroughGoogle Scholar
  30. Stachowicz JJ, Graham M, Bracken MES, Szoboszlai AI (2008) Diversity enhances cover and stability of seaweed assemblages: the role of heterogeneity and time. Ecology 89:3008–3019CrossRefGoogle Scholar
  31. Valiente-Banuet A, Verdu M (2007) Facilitation can increase the phylogenetic diversity of plant communities. Ecol Lett 10:1029–1036PubMedCrossRefGoogle Scholar
  32. Von Holle B (2005) Biotic resistance to invader establishment of a southern Appalachian plant community is determined by environmental conditions. J Ecol 93:16–26CrossRefGoogle Scholar
  33. Von Holle B, Motzkin G (2007) Historical land use and environmental determinants of nonnative plant distribution in coastal southern New England. Biol Conserv 136:33–43CrossRefGoogle Scholar
  34. Von Holle B, Delcourt HR, Simberloff D (2003) The importance of biological inertia in plant community resistance to invasion. J Veg Sci 14:425–432Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Department of BiologyUniversity of Central FloridaOrlandoUSA

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