Temporal variation in trophic relationships among three congeneric penguin species breeding in sympatry
Arnaud Tarroux, Christian Lydersen, Philip N. Trathan and Kit M. Kovacs
Ecology and Evolution
https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.3937
I like the style of Fig. 3. How can we draw this sort of the graph???
