rcpp

A popular new year’s resolution is to de-clutter our homes. But what if a clutter-free home was the only way you could survive and thrive?

Across Arizona, there is wildlife living in grasslands impacted by poorly-planned fencing and woody invasive brush. Invasive plant species, such as pinion juniper and mesquite that grow and spread quickly, create obstacles in grassland habitats that make it difficult for pronghorn and other migratory, grassland-dependent species to avoid predators.

Further, these invasives crowd out native grasses that provide food for wildlife and livestock, reduce soil erosion and help soil absorb precipitation, which is vital to replenishing supplies of groundwater and improving water quality.

What do biologists look for in a healthy forest? A diversity in the ages and composition of trees and occasional breaks in canopy to allow sunlight to reach understory plants. Healthy forests, just like healthy human populations, are sustained by a diversity of ages. Each group has a role to play in maintaining the whole community over the long term.

But healthy, diverse forests are on the decline across the eastern United States. A lack of natural and human-induced disturbances because of fire suppression and certain timber harvest methods have led the forested landscape to become largely homogenous.