Table 4.

Managing urban greenspaces to enhance native community biodiversity.

GoalActivityReferences
Reduce invasive plant species
  • * Plant alternative resources before removing invasives with food or nesting value

  • * Remove invasives favored for nesting during the winter

  • * Remove invasives favored for food only when ample alternatives present

Eliasaro et al. 2009; Kath et al. 2009; Gleditsch and Carlo 2011; Adhikari et al. 2012a;
Increase tree and shrub species diversity
  • * Plant native as well as non-invasive introduced species

Santamour 1978
Maintain a vertically diverse assemblage of vegetation
  • * Plant more ground and shrub vegetation for bird habitat

  • * Plant trees in groups rather than as isolates

  • * Retain deadwood and other nesting structures in place when possible

Oneal and Rotenberry 2008; Suarez-Rubio and Thomlinson 2009; Adhikari et al. 2012b
Improve tree size distribution
  • * Protect middle-aged trees to ensure longevity

  • * Retain old, large trees

  • * Use small “urban” tree species sparingly

Marzluff and Ewing 2001; Landmann 2006; Nagendra and Gopal 2011; Adhikari et al. 2012b
Enhance ecosystem edges
  • * Increase diversity of plants in edge habitats

  • * Reduce management of edges (e.g., no mowing, pesticide application, etc.)

Marzluff and Ewing 2001; Stewart et al. 2004; Roberts et al. 2007; Shwartz et al. 2008; Vallet et al. 2010
Reduce predation on native animal species
  • * Reduce managed, open lawns

Marzluff and Ewing 2001
Improve soil habitat for insects, reptiles, and mammals
  • * Reduce soil compaction with organic mulch

Garden et al. 2007