1. The strength of many interactions between plants and other organisms changes across regional gradients. For example, the relevance of plant-herbivore interactions increases with primary production.
Leaf traits for 101 populations of Dodonaea viscosa subsp. angustissima (Sapindaceae) opportunistically collected across a ~1,000 km latitudinal north – south sequence with climates grading from
Bio6 = minimum temperature of the coldest month; Bio12 = annual precipitation; Bio15 = rainfall seasonality (coefficient of variation); Green-up = day of the year of the onset of green-up; QSc
