Lek mating females away from the hotshot. A manipulative experiment using the little bustard, "Tetrax tetrax", was done to test the various lek evolution models. The experiment involved varying the size and sex ratio of leks using decoys. To test whether or not the presence of a hotshot determined lek formation, a hotshot little bustard decoy was placed within a lek. After the fake hotshot was added to the lek, both male and female visitation to the lek increased. The hotspot model considers the female density to be the catalyst for the clustering of males. This model predicts that leks will form
Ascochyta tarda will decrease in future decades because of climate change (Bucker Moraes W., Cintra de Jesus, W.J, de Azevedo Peixoto, L., Bucker Moraes, W., Morra Coser, S., Cecílio, R.A, 2012). This will also be an issue in Ethiopia where coffee farming is the source of income for approximately 15 million farmers in Ethiopia and as much as 60% of the current growing area can become affected (Moat, J., Williams, J., Baena, S., Wilkinson, T., Gole, T.W., Challa, Z.K., Demissew, S., David, A.P., 2017) Ascochyta tarda Ascochyta tarda or Phoma tarda is a fungal plant pathogen that causes dieback and leafspot on