ConserveOnline - Bontrager and Gorospe_1995_Movement and disp CAGN

Bontrager and Gorospe_1995_Movement and disp CAGN_CACW San Joaq Hills, OC

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Dispersal study using 607 CACW and 242 CAGN banded in the San Joaquin Hills, Orange County, 1991-1994. The 1993 Laguna Fire presumably influenced dispersal behavior. Seven juvenile CACW (four males, three unknown) inherited natal territories after death of a parent. Mean natal dispersal distance for 23 juvenile CACW was 1.3 km (S.D. = 2.0; range = 0.0-5.6 km). Mean distance for 12 males was 1.3 km (S.D. = 2.0; range = 0.0-5.6 km). Mean distance for 5 females was 1.7 km (S.D. = 1.7; range = 0.2-5.0 km). 13 additional CACW were detected before dispersal could be safely assumed complete. 3 adult CACW were documented moving 0.3 km to new territories. Young CACW leave natal territories as early as July; some may remain into February. Study documented 3 CACW crossing Laguna Canyon Road, 3 crossing Ridgeline Drive, and 2 dispersing into Turtle Rock habitat fragments across roads and residential areas. Conservation implications of these movements unknown; authors recommended further study.

CREATION DATE	January 15, 2009
LAST MODIFIED	January 15, 2009
CREATED BY	Robb Hamilton
AUTHOR(S)	undefined, David; Gorospe, Amy
KEYWORDS	research
DOCUMENT PURPOSE	Maps; Unpublished Documents; Ecoregional Plans; Reports / Analysis
PUBLICATION YEAR	1995
LICENSE	Attribution No Derivatives