a) The link to my source is: https://doi.org/10.1002/ecs2.2880
Citation: Hejda, M., K. Štajerová, J. Pergl, and P. Pyšek. 2019. Impacts of dominant plant species on trait composition of communities: comparison between the native and invaded ranges. Ecosphere 10(10):e02880. 10.1002/ecs2.2880
b) This source of information is academic, peer reviewed, research material.
c) It is written by experts in the field, it includes in-text citations, and it also contains a bibliography at the end. It is peer reviewed as the authors mention getting important feedback in the acknowledgment section at the end of the article. It is research material as it contains methods in which the study was conducted, how data was gathered, and also a “results” section.