geog 111 presentation

North Etiwanda PreserveMatt Powell

The North Etiwanda preserve is vital because the riversidian Alluvial Sage (RAFSS) habitat is extremely rare and this is one of the only places it is still intact. The RAFSS runs along the southern base of the Transverse mountain ranges. The vegetation is adapted for periodic flooding and erosion and usually found on alluvial fans. it covers the gently slopping alluvial fan surfaces that have not been recently flooded.

On the western boundry Day Creek is channelized. This eliminates the depositional process that build alluvial fans over time. Absence of flooding can lead to more mature upland forms of alluvial scrub and alluvial chaparral vegitation. But there are no flood controls within the park which keeps the vegitation intact.

Early ranchers had to be creative getting water for agriculture and consumption into the area. Signs of this are still present in the preserve. There are long segmants of clay pipes all over the grounds.

California Brittle Brush Yucca Plant

White Sage

There are 473 acres of alluvial shrub. Its characterize By shrub dominated plant communities. One is the white sage, the California brittle brush flower. There are also many endangered species on the preserve. The California Gnatcher is an endangered bird found on the preserve. Others include the kangaroo rat the ring neck snake, American

A simple reminderof the Grand Prix fire.

This shows the wind direction at the preserve ( From West to East)