Resource Details

Bird Perches Increase Forest Seeds on Puerto Rican Landslides

Literature: Journal Articles

Shiels, A. B., & Walker, L. R. (2003). Bird Perches Increase Forest Seeds on Puerto Rican Landslides. Restoration Ecology, 11(4), 457-465

Contact Info


Department of Biological Sciences University of Nevada



Landslides are somewhat common in Puerto Rico, causing a loss of vegetative structure, soil nutrients, and the soil seed bank, which makes regrowth after a landslide event very difficult. The experiemental design of this study involved supplementing areas where landslides had occurred with bird perches  to see if there was a significant difference between seed dispersal by birds. The addition of perches was found to increase the amount of bird dispersed seeds, but these results were not consistent, and many variables were not quanitfied (e.g. seed loss from predation, attraction of birds to certain vegetation still in the landslide area, the effect of wind despersed grasses and vines on seed recruitment). While this could be a inexpensive technique to recruit more bird-dispersed seeds and accelerate seed accumulation in the soil seed bank, this study shows that more research needs to be done, and supplemental reforestaton techniques must be done along with adding bird perches.

Geographical Region

  • Caribbean Islands
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