VERTEBRATE CENSUS
The Vertebrate Census Study determines the health of the creek by observing the changes in vertebrate populations throughout the seasons and years.
Vertibrates students
searching for any birds in the area
Vertibrates Students
Look! It's a deer!
Vertibrates Students
Binoculars are an indispensable tool for the Vertebrates team
Vertibrates Students
Eggs! A very strong indication of the presence of birds
Vertibrates Students
Pointing out their sightings
The main task of the Vertebrates team is to recognize any trends of the inhabitants at the Arcade Creek that may require further attention. Although the study is responsible for observing all vertebrate animals, bird-watching is emphasized due to the relative abundance of birds at the creek.
The Vertebrates team collects written data by noting the species of vertebrates seen or heard, number of vertebrates in a group, and their distance from the creek, all of which are later used for analysis and comparison. Indicator species that are closely monitored include the Yellow-billed Magpie, California Quail, Mallard Duck, and Acorn Woodpecker. Their presence, absence, or relative well-being is reflective of the health of its ecosystem as a whole. Thorough accounts of the vertebrate species serve as a measure of the creek's health and indicate the ways to facilitate the improvement of its conditions.