Occupancy Modelling - Data sources

Sorted by type of study
Example Source/Data
American Toad This was the data used in MacKenzie et al (2002). I downloaded it from the supplement area of the paper in Ecology.
Single season single species occupancy

Refer to Excel workbook for more information.
Extremely sparse data.

Blue Gross Beaks Data from an occupancy course from Mike Conroy
Single season single species occupancy

An occupancy study was made on Blue Grosbeaks (Guiraca caerulea) on 41 old fields planted to longleaf pines (Pinus palustris) in southern Georgia, USA. Surveys were 500 m transects across each field and were completed three times during the breeding season in 2001. Columns in the file are:

  • field - field number
  • v1, v2, v3 - detection histories for each site on each of 3 visit during the 2001 breeding season.
  • field.size - size of the fields
  • bqi - Enrollment in bobwihte quail initiative; does occupancy increase if field belongs to this initiative?
  • crop.hist - crop history
  • crop1, crop2 - indicator variables for the crop history
  • count1, count2, count3 - actual counts of birds detected in each visit
Brook Trout This is from MARK demo files on occupancy.
Single season single species occupancy

Collected via electrofishing three 50 m sections of streams at 77 sites in the Upper Chattachochee River basin. 77 streams 3 occasions, 4 covariates: elevation, cross sectional area each occasion.
See here for further information

Bull Frogs 500 Ponds were visited on each of 4 surveys.
Single season single species occupancy - with heterogeneity

Demonstrates heterogeneous catchability models.

Butterflies Single Species Multi Season
Source: Mike Conroys notes on the web.
Details unknown about this dataset - poke around his web pages for details.
California Spotted Owl Multi State - Single Season
Nichols et al (2007) Ecology 88, 1395-1400.
Data available on Ecology archives and in MARK help files.

Five visits to sites. Recorded:
    . = site not visited.
    0 = site visited, but no owl detected.
    1 = site visited, owl detected, but breeding status not confirmed.
    2 = site visited, breeding status confirmed

Coose Bass Multi State - Single Season
Data Source

This example is of Coosa bass collected via electrofishing from four 50-80 m sections in streams at 54 sites in the Upper Coosa River basin. The objective was to evaluate the effect of streamflow variability on Coosa bass reproduction.

States
    species not detected (state = 0)
    adult present (state = 1)
    YOY present (state = 2)

Coyote, bobcats, grey foxes, and red foxes Coyote, bobcat, grey foxes, and red foxes co-occurence.

Rota CT, Ferreira MAR, Kays RW, Forrester TD, Kalies EL, McShea WJ, Parsons AW, Millspaugh JJ (2016).
A multispecies occupancy model for two or more interacting species.
Methods in Ecology and Evolution 7(10): 1164-1173.
https://doi.org/10.1111/2041-210x.12587

Multi Species Single Season

Pronghorn This is the Pronghorn dataset that ships with the Presence software.
Single season single species occupancy
Grand Skinks Data has been collected on 352 tors over a 5 year (the ‘seasons’)
although not all tors (rock piles) were surveyed each year, with up to 3 surveys
of each tor per year.
Single Species Multi Season
Ships with PRESENCE.
Hawk breeding Occupancy/breeding of hawks in BC
Multi State Multi Season
House Finches Expansion of house finches in BBS
Single Species Multi Season
Ships with PRESENCE
Nightingales 10 years x 8 visits per year of detection of nightingales.
Single Species Multi Season
Ships with R package blmeco
Northern Spotted Owl Northern Spotted Owl data from MacKenzie et al (2012). Ships with Presence.
55 sites visited up to 8 times between 1997 and 2001.

Single Species Multi Season

Possum Coyote Raccoon Posssum, Coyote, Raccoon co-occurence.

Fidino M, Simonis JL, Magle SB (2018)
A multi-state dynamic occupancy model to estimate local colonization-extinction
rates and patterns of co-occurrence between two or more interacting species.
Methods in Ecology and Evolution, online in advance of print.
https://doi.org/10.1111/2041-210x.13117

Multi Species Multi Season

Pronghorn This is the Pronghorn dataset that ships with the Presence software.
Single season single species occupancy
Available here
Salamander This is the Salamander dataset that ships with the Presence software.
Single season single species occupancy

Discussed in Mackenzie et al (2006) Chapter 4.
Missing values added at random to the dataset to illustrate how the analysis is (mostly) unchanged

Co-occurance of Salamanders This is the co-occurence salamander dataset that ships with PRESENCE.
Multiple species single season

Example, 8.4 in MacKenzie et al 2006.
Co-occurence of two species of Salamanders in Smoky Mountains National Park.

Salamander Multi Season Salamanders over two seasons with covariates on elevation and stream type.<.br> Single Species Multi Season

Discussed n MacKenzie et al.
Ships with PRESENCE.

SSSS-sample This is the sample dataset that ships with MARK.
Single season single species occupancy

Source unknown.

Salamander This is the Salamander dataset that ships with the Presence software.
Single season single species occupancy

Discussed in Mackenzie et al (2006) Chapter 4.
Missing values added at random to the dataset to illustrate how the analysis is (mostly) unchanged

Spotted and Barred Owl Co-occurrence Ships with PRESENCE. Appears to be based on:
Modeling co-occurrence of northern spotted and barred owls: Accounting for detection probability differences. Larissa L. Bailey, Janice A. Reid, Eric D. Forsman, James D. Nichols. Biological Conservation 142 (2009) 2983Ð2989.

Multi season single season

I only used the first 10 surveys in the season.

Sun fish from the Flint River Single Species Multi Season
Discussed here
Trout co-occurance Multiple Species Single Season

BKTR and BLTR measured in watersheds in Alberta Bull trout are native and require cold water; brook trout are from the east and are supposed to have warmer temperature preferences.

Each site was sampled twice, represented as "rep1" and "rep2" in the database.

I have more than a lot of predictors, but the two predictors of occupancy that I would be most interested in are temperature and discharge

Weta This is the Weta dataset that ships with the Presence software.
Single season single species occupancy

Discussed in Mackenzie et al (2012)

YellowBelliedToad Detection of toad on two visits with julian date was a site-vist covariate.
Single season single species occupancy

This is shipped with the blmeco package in R.

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Last updated 2018-11-18 HeteroCatchability Data extracted from http://coopunit.forestry.uga.edu/FORS8390/Labs/occupancy/lab_occupancy.htm to illustrate fitting mixture Occupancy models with MARK. No information on the sampling protocol or what this dataset refers to. FlintFish Single Species Single Season Occupancy model http://people.oregonstate.edu/~peterjam/occupancy_workshop/hands_on.html