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5.7 Biological Resources

Nesting Birds
Impacts associated with development of off-site Project features may result in the
disturbance of nesting birds. Due to their protected status, impacts to nesting birds resulting
from off-site development are considered significant. Implementation of MM 7-8 would
reduce adverse impacts to a less than significant level by minimizing disturbance to nesting
birds during construction through seasonal avoidance in some areas and pre-construction
surveys and avoidance of designated active nesting areas.

Impact Summary: Impacts to special status plants, special status wildlife, and nesting
birds that would result from implementation of the Project would be
reduced to a level considered less than significant through
implementation of MMs 7-1, 7-2, 7-3, 7-4, 7-5, 7-6, -7, and 7-9.

Threshold 7-2 Would the Project have a substantial adverse effect on any
sensitive natural communities (e.g., riparian habitat, coastal sage
scrub, oak woodlands, non-jurisdictional wetlands) identified in
local or regional plans, policies, regulations or by the CDFW or
USFWS?

On-Site and Off-Site Impacts

Table 5.7-11, Impacts to Vegetation Types, below details the impacts to vegetation types in
the Project’s on-site and off-site study areas, which are discussed separately below. Table
5.7-12, Primary Biological Resources within the Impact Areas and the On-Site and Off-Site
Mitigation Preserve System, summarizes the on- and off-site impacts to the primary, group
vegetation types and the associated acres to be preserved. The Mitigation Preserve refers to
the on-site unimpacted lands that are within SEA 17 and the off-site open space preserve
areas.

TABLE 5.7-11
IMPACTS TO VEGETATION TYPES

Existing Existing Percent
On-Site Off-Site Total Impact of
Areas Areas a Existing Total (acres)
Vegetation Type (acres) (acres) (acres)
Scrub and Chaparral Vegetation Types
Bladderpod Scrub 0.7 – 0.7 0.00%
Bush Lupine Scrub 0.4 – 0.4 0.00%
California Buckwheat Scrub 12.8 – 12.8 0.00%
California Buckwheat Scrub/Yucca Scrub 1.9 – 1.9 0.00%
California Juniper/California Buckwheat Scrub 4.6 – 4.6 0.00%
Chamise/Bigberry Manzanita Chaparral 40.1 – 40.1 0.00%
Coffeeberry Scrub 11.9 – 11.9 0.00%
Goldenbush Scrub 7.7 – 7.7 0.00%
Great Basin Scrubs 360.3 0.2 360.5 76.85%
a

R:\Projects\PAS\CEN\000306\Draft EIR\5.7 Bio_051117.docx 5.7-155 Centennial Project
Draft EIR