To cite APAtree in publications use:

Glatthorn J (2021). “A spatially explicit index for tree species or trait diversity at neighborhood and stand level.” Ecological Indicators, 130, 108073.

Corresponding BibTeX entry:

  @Article{,
    title = {A spatially explicit index for tree species or trait
      diversity at neighborhood and stand level},
    author = {Jonas Glatthorn},
    journal = {Ecological Indicators},
    year = {2021},
    volume = {130},
    pages = {108073},
  }