Charles B. Yackulic, Janice Reid, Raymond Davis, James E. Hines, James D. Nichols, and Eric Forsman. 2012. Neighborhood and habitat effects on vital rates: expansion of the Barred Owl in the Oregon Coast Ranges. Ecology 93:1953–1966. http://dx.doi.org/10.1890/11-1709.1

Supplement

Winbugs code and comparison of estimates derived using Presence and WinBUGS.
Ecological Archives E093-172-S1.

Copyright

Authors
File list (downloads)
Description

Author(s)

Charles B. Yackulic
Princeton University
Department of Ecology and Evolutionary Biology
Princeton, NJ 08544
USA
Email: c_yackulic@yahoo.com

James E. Hines
USGS
Patuxent Wildlife Research Center
12100 Beech Forest Rd
Laurel, MD 20708
USA

James D. Nichols
USGS
Patuxent Wildlife Research Center
12100 Beech Forest Rd
Laurel, MD 20708
USA

Janice Reid
US Forest Service
Pacific Northwest Research Station
3200 SW Jefferson Way
Corvallis, OR 97331
USA

Eric Forsman
US Forest Service
Pacific Northwest Research Station
3200 SW Jefferson Way
Corvallis, OR 97331
USA

Raymond Davis
US Forest Service
Forestry Sciences Lab
3200 SW Jefferson Way
Corvallis, OR 97331
USA

File list

code.txt (md5: c99dd7fbba34f43ff04b8341fcb83f05)

Description

We fit the model where colonization and extinction depended on in WinBUGS (code.txt) and compared parameter estimates and computation time between these approaches. The model was run with 3 chains for 20000 iterations, and inference was based on the last 10000 iterations.

Parameter estimates and computation time (SE in parenthesis):

Modeling
method 		Time
(s) 		ψ0 Colonization
(γ) 		Extinction
(ε) 		Detection (p)
β0 ψt β0 ψt β0 Day Night Cont. Core SL Year
Presence 15 -3.1 (0.5) -3.5 (0.2) 3.9 (0.5) -1.7 (0.5) -2 (1) -2.3 (0.2) -1.2 (0.1) 0.7 (0.1) -0.7 (0.2) -0.1 (0.1) 0.29 (0.05) 0.05 (0.01)
MCMC 50203 -2.9 (0.5) -3.4 (0.2) 3.7 (0.5) -1.3 (0.4) -3 (1) -2.3 (0.2) -1.2 (0.2) 0.7 (0.1) -0.7 (0.2) -0.1 (0.1) 0.29 (0.05) 0.05 (0.01)