[1] She is considered to be one of the most important donors to the National Museum of Ireland Natural History's Irish and British shell collection, contributing over 400 specimens together with her brother Robert Warren.
[2] Warren's primary area of focus was the study of Mollusca, and she published several papers in the late 19th century that included distributional lists, particularly of rare species found in Killala Bay and Bundoran.
[7] Additionally, she published seven notes in the Irish Naturalist over the following four years, primarily describing rare and interesting species, including some from Killala Bay.
[8] These specimens also provide evidence of collaboration and shared collections between Amy Warren and Edward Waller, an Irish zoologist, as indicated by labels referencing exchanges of shells between them.
[2][8] Due to her contributions to the field, the sea snail species Odostomia wareni was named by Christoffer Schanderin her honour in 1994.