Ecological Archives E095-179-A3

Julian Resasco, Nick M. Haddad, John L. Orrock, DeWayne Shoemaker, Lars A. Brudvig, Ellen I. Damschen, Joshua J. Tewksbury, Douglas J. Levey. 2014. Landscape corridors can increase invasion by an exotic species and reduce diversity of native species. Ecology 95:2033–2039. http://dx.doi.org/10.1890/14-0169.1

Appendix C. Rectangular patch and nest results, rarefaction curves, species list, and diversity measures.

FigC1

Fig. C1. Effect of patch type on fire ant abundance, measured as proportion of traps with fire ants (top) and number of nests per patch (bottom) for connected (Con), rectangular (Rect), and winged (Wing) patches (mean ± 1SE). The left side shows only monogyne blocks (n = 5) and the right panel shows only polygyne blocks (n = 3). Patch type × block social form interactions were significant for proportion of traps with fire ants and marginally significant for number of nests (pitfall model: interaction: F2, 18 = 5.38, P = 0.01, patch type: F2, 18 = 3.28, P = 0.06, block social form: F1,6.2 = 3.33, P = 0.1; nests model: interaction: F2, 11.9 = 2.64, P = 0.1, patch type: F2, 11.9= 4.58, P = 0.03; block social form: F1, 6.1 = 0.2, P = 0.67). Within polygyne blocks, patch type effects were significant for both pitfall incidence (F2, 18 = 5.13, P = 0.02) and nests (F2, 11.9 = 8.64, P = 0.01). Patch type effects were not significant in monogyne blocks (pitfall: F2, 18 = 0.56, P = 0.6; nests: F2, 11.9 = 0.35, P = 0.7).


 

FigC2

Fig. C2. Species richness (A and C) and Hurlbert's PIE (B and D) sample-based rarefaction curves for connected (red), rectangular (black), and winged (blue) patches. Dashed lines indicate upper and lower bounds of 95% confidence intervals. Top row (A and B) shows only polygyne blocks (n = 3), bottom row (C and D) shows only monogyne blocks (n = 5).


 

Table C1. Species list and abundance of ants collected in patches. Introduced species are demarcated by an asterisk (*). Species absent in connected patches but present in unconnected patches of polygyne blocks are demarcated by a cross (†).

Subfamily

Species

 Total indiv.

 Total incidence (traps)

Dolichoderinae

Dorymyrmex bureni

1134

106

Dolichoderinae

Dorymyrmex grandulus

8

5

Dolichoderinae

Forelius pruinosus

255

67

Dolichoderinae

Lasius neoniger

30

7

Dolichoderinae

Nylanderia arenivaga

11

5

Dolichoderinae

Nylanderia concinna

34

19

Dolichoderinae

Nylanderia faissonensis  

11

6

Dolichoderinae

Nylanderia parvula

36

23

Dolichoderinae

Tapinoma sessile

3

1

Ecitoninae

Neivamyrmex opacithorax

8

2

Ecitoninae

Neivamyrmex texanus

3

2

Formicinae

Brachymyrmex depilis

20

6

Formicinae

Brachymyrmex patagonicus*

2

2

Formicinae

Camponotus castaneus

9

8

Formicinae

Camponotus chromaiodes

1

1

Formicinae

Camponotus socius

3

2

Formicinae

Formica dolosa

22

12

Formicinae

Formica integra

26

2

Formicinae

Formica pallidefulva

2

2

Formicinae

Formica subsericea

3

2

Myrmicinae

Aphaenogaster ashmeadi

10

9

Myrmicinae

Aphaenogaster carolinensis

9

7

Myrmicinae

Aphaenogaster floridana

30

22

Myrmicinae

Aphaenogaster tennesseensis

3

1

Myrmicinae

Aphaenogaster treatae

10

9

Myrmicinae

Crematogaster ashmeadi

2

2

Myrmicinae

Crematogaster lineolata

346

70

Myrmicinae

Crematogaster missouriensis

4

3

Myrmicinae

Cyphomyrmex rimosus*

16

8

Myrmicinae

Monomorium minumum

1

1

Myrmicinae

Myrmecina americana

6

6

Myrmicinae

Pheidole crassicornis

296

48

Myrmicinae

Pheidole dentata

22

13

Myrmicinae

Pheidole dentigula

4

2

Myrmicinae

Pheidole metallescens

31

13

Myrmicinae

Pheidole morrisii

471

28

Myrmicinae

Pogonomyrmex badius

134

35

Myrmicinae

Solenopsis geminata

191

7

Myrmicinae

Solenopsis invicta*

7324

165

Myrmicinae

Solenopsis molesta grp

193

77

Myrmicinae

Strumigenys creightoni

4

3

Myrmicinae

Strumigenys louisianae

3

1

Myrmicinae

Strumigenys missouriensis

1

1

Myrmicinae

Strumigenys rohweri

1

1

Myrmicinae

Strumigenys talpa

2

2

Myrmicinae

Temnothorax pergandei

18

10

Myrmicinae

Temnothorax texanus

1

1

Myrmicinae

Trachymyrmex septentrionalis

12

11

Ponerinae

Hypoponera opacior

9

6

 

Table C2. Diversity measures of native ants by patch types.

TableC2


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