stake77
(Package: mrds) :
Wooden stake data from 1977 survey
Multiple surveys by different observers of a single 1km transect containing 150 wooden stakes placed randomly throughout a 40 m strip (20m on either side).
● Data Source:
CranContrib
● Keywords: datasets
● Alias: stake77
●
0 images
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lfbcvi
(Package: mrds) :
Black-capped vireo mark-recapture distance sampling analysis
These data represent avian point count surveys conducted at 453 point sample survey locations on the 24,000 (approx) live-fire region of Fort Hood in central Texas. Surveys were conducted by independent double observers (2 per survey occasion) and as such we had a maximum of 3 paired survey histories, giving a maximum of 6 sample occasions (see MacKenzie et al. 2006, MacKenzie and Royle 2005, and Laake et al. 2011 for various sample survey design details). At each point, we surveyed for 5 minutes (technically broken into 3 time intervals of 2, 2, and 1 minutes; not used here) and we noted detections by each observer and collected distance to each observation within a set of distance bins (0-25, 25-50, 50-75, 75-100m) of the target species (Black-capped vireo's in this case) for each surveyor. Our primary focus was to use mark-recapture distance sampling methods to estimate density of Black-capped vireo's, and to estimate detection rates for the mark-recapture, distance, and composite model.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: lfbcvi
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ptdata.dual
(Package: mrds) :
Simulated dual observer point count data
Simulated dual observer point count data with detection p(0)=0.8; hn sigma=30; w=100 for both observers with dependency y>0, gamma=0.1
● Data Source:
CranContrib
● Keywords: datasets
● Alias: ptdata.dual
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0 images
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ptdata.distance
(Package: mrds) :
Single observer point count data example from Distance
Single observer point count data example from Distance
● Data Source:
CranContrib
● Keywords: datasets
● Alias: ptdata.distance
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pronghorn
(Package: mrds) :
Pronghorn aerial survey data from Wyoming
Detections of pronghorn from fixed-wing aerial surveys in Southeastern Wyoming using four angular bins defined by strut marks. Illustrates data where altitude above ground level (AGL) varies during the survey.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: pronghorn
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stake78
(Package: mrds) :
Wooden stake data from 1978 survey
Multiple surveys by different observers of a single 1km transect containing 150 wooden stakes placed based on expected uniform distribution throughout a 40 m strip (20m on either side).
● Data Source:
CranContrib
● Keywords: datasets
● Alias: stake78
●
0 images
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lfgcwa
(Package: mrds) :
Golden-cheeked warbler mark-recapture distance sampling analysis
These data represent avian point count surveys conducted at 453 point sample survey locations on the 24,000 (approx) live-fire region of Fort Hood in central Texas. Surveys were conducted by independent double observers (2 per survey occasion) and as such we had a maximum of 3 paired survey histories, giving a maximum of 6 sample occasions (see MacKenzie et al. 2006, MacKenzie and Royle 2005, and Laake et al. 2011 for various sample survey design details). At each point, we surveyed for 5 minutes (technically broken into 3 time intervals of 2, 2, and 1 minutes; not used here) and we noted detections by each observer and collected distance to each observation within a set of distance bins (0-50, 50-100m; Laake et al. 2011) of the target species (Golden-cheeked warblers in this case) for each surveyor. Our primary focus was to use mark-recapture distance sampling methods to estimate density of Golden-cheeked warblers, and to estimate detection rates for the mark-recapture, distance, and composite model.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: lfgcwa
●
0 images
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ptdata.single
(Package: mrds) :
Simulated single observer point count data
Simulated single observer point count data with detection p(0)=1; hn sigma=30; w=100
● Data Source:
CranContrib
● Keywords: datasets
● Alias: ptdata.single
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0 images
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book.tee.data
(Package: mrds) :
Golf tee data used in chapter 6 of Advanced Distance Sampling examples
Double platform data collected in a line transect survey of golf tees by 2 observers at St. Andrews. Field sex was actually colour of the golf tee: 0 - green; 1 - yellow. Exposure was either low (0) or high(1) depending on height of tee above the ground. size was the number of tees in an observed cluster.
● Data Source:
CranContrib
● Keywords: datasets
● Alias: book.tee.data
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0 images
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ptdata.removal
(Package: mrds) :
Simulated removal observer point count data
Simulated removal observer point count data with detection p(0)=0.8; hn sigma=30; w=100 for both observers with dependency y>0, gamma=0.1
● Data Source:
CranContrib
● Keywords: datasets
● Alias: ptdata.removal
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0 images
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