Type of predator matters in elevation habitat-specific food webs


Godschalx AL,  Tran V, Ballhorn DJ: Host plant cyanotype determines degree of rhizobial symbiosis Ecosphere 2017, 16:32. 

Highly-toxic genotypes form more root nodules, but at a cost.


Godschalx AL,  Stady L, Watzig B, Ballhorn DJ: Is protection against florivory consistent with the optimal defense hypothesis? BMC Plant Biology 2016, 16:32. 

Should plants protect

their flowers?


Godschalx AL, Schädler M, Trisel JA, Balkan MA, Ballhorn DJ: Ants are less attracted to the extrafloral nectar of plants with symbiotic, nitrogen-fixing rhizobia. Ecology 2015, 96:348–354.


Ballhorn DJ, Godschalx AL, Smart SM, Kautz S, Schädler M: Chemical defense lowers plant competitiveness. Oecologia 2014, 176:811–824. 

Highly cyanogenic plants are the worst competitors unless herbivores are in the mix.


Ballhorn DJ, Godschalx AL, Kautz S: Co-variation of chemical and mechanical defenses in lima bean (Phaseolus lunatus L.). J Chem Ecol 2013, 39:413–417. (blog)

Plants with higher levels of toxins (which also attract fewer predators) stud leaf surfaces more densely with hook-shaped trichomes.