Ecological Archives A017-034-A5

Fritz Gerhardt and Sharon K. Collinge. 2007. Abiotic constraints eclipse biotic resistance in determining invasibility along experimental vernal pool gradients. Ecological Applications 17:922–933.

Appendix E. Final richness, density, and mass of neighbors in relation to neighbor identity.

TABLE E1. Final richness, density, and mass of neighbors in relation to neighbor identity in a greenhouse experiment examining abiotic and biotic resistance to plant invasions. Values are means (+1 SEM).


Neighbor identity
Final richness
(no. spp. / pot)
Final density
(no. ind. / pot)
Final mass
(g / pot)
1-species treatments:
Deschampsia (N = 28) 1.1+0.1 7.8+1.6 1.30+0.14
Layia (N = 77) 0.7+0.1 3.6+0.7 0.47+0.07
Lasthenia (N = 81) 1.0+0.0 20.6+1.9 0.74+0.07
2-species treatments:
Deschampsia-Layia (N = 42) 1.4+0.1 6.0+0.7 1.04+0.13
Deschampsia-Lasthenia (N = 60) 1.9+0.0 26.1+2.3 2.20+0.19
Layia-Lasthenia (N = 87) 1.5+0.1 16.8+1.8 0.89+0.10
3-species treatments:
Deschampsia-Layia-Lasthenia (N = 99) 2.3+0.1 21.5+1.7 1.75+0.12


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