Ecological Archives A025-067-A1
Alejandro C. Costamagna, William N. Venables, and Nancy A. Schellhorn. 2015. Landscape-scale pest suppression is mediated by timing of predator arrival. Ecological Applications 25:1114–1130. http://dx.doi.org/10.1890/14-1008.1
Appendix A. Number and proportion of different land cover types mapped in the landscapes studied.
Table A1. Land cover types identified in the landscapes studies in the Lockyer Valley, during the experiments of November 2009 and March 2010. Major land categories represent areas > 4%, with the exception of Cucurbit crops, which was considered separately as it was the focal crop under study. Major land categories were used in multiple regression analysis to test their influence on aphid suppression, diversity categories were considered to estimate habitat diversity.
Major land categories |
|
Diversity land cover categories |
% area |
# areas |
Grassland |
|
Grassland |
25.920 |
828 |
--- |
|
Fallow land |
21.863 |
935 |
Native vegetation |
|
Native vegetation |
21.088 |
210 |
Alfalfa |
|
Alfalfa |
5.833 |
275 |
Riparian vegetation |
|
Riparian vegetation |
4.540 |
26 |
Cucurbits |
|
Cucurbits (melon, watermelon) |
1.644 |
132 |
Other crops1 |
|
Sorghum |
2.194 |
112 |
|
|
Weedy fields |
1.670 |
88 |
|
|
Corn |
1.011 |
34 |
|
|
Beans |
0.993 |
39 |
|
|
Brassicas |
0.794 |
44 |
|
|
Turf |
0.603 |
53 |
|
|
Tomato |
0.252 |
18 |
|
|
Onion |
0.244 |
16 |
|
|
Spring onions |
0.182 |
13 |
|
|
Carrots |
0.124 |
4 |
|
|
Orchards |
0.118 |
11 |
|
|
Potato |
0.113 |
7 |
|
|
Capsicum |
0.096 |
6 |
|
|
Cereal grains |
0.081 |
8 |
|
|
Lettuce |
0.055 |
6 |
|
|
Sunflower |
0.038 |
6 |
|
|
Celery |
0.025 |
5 |
|
|
Hay |
0.022 |
1 |
|
|
Beetroot |
0.016 |
1 |
|
|
Silver beet |
0.014 |
2 |
|
|
Sweet potato |
0.003 |
1 |
--- |
|
Houses and urban2 |
4.359 |
949 |
--- |
|
Roads2 |
1.803 |
136 |
--- |
|
Water (lakes, water storage ponds)2 |
1.892 |
465 |
1 Other crops include all crops representing < 4% of area (except cucurbits)
2 Fallow fields, houses, roads, and water bodies were not considered in the multiple regression analysis as they are not a significant source of insects.