Multispecies occupancy models to investigate seasonal co-occurrence of predator-prey pairs and changes withing these co-occurrences.
In total seven predator-prey pairs were analyzed:
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gray wolf (Canis lupus) and roe deer (Capreolus capreolus)
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gray wolf (Canis lupus) and red deer (Cervus elaphus)
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gray wolf (Canis lupus) and wild boar (Sus scrofa)
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gray wolf (Canis lupus) and European hare (Lepus europaeus)
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Eurasian lynx (Lynx lynx) and roe deer (Capreolus capreolus)
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Eurasian lynx (Lynx lynx) and wild boar (Sus scrofa)
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Eurasian lynx (Lynx lynx) and European hare (Lepus europaeus)
Here, as an example only the analysis of gray wolf (Canis lupus) and roe deer (Capreolus capreolus) is given.
camera_trap_activity.xlsx is the table for how many days a camera was working within a month. Used for creating number of days variable, which was the random effect in the models.
Static multispecies models to check the seasonal co-occurrence.
Seasons (summer and winter) were analyzed separately to account for the seasonal effect with static framework.
cctocl_static_summer_072023.txt = JAGS model text file for the named model type
cctocl_static_summer_072023_github.R = R file to run the JAGS model
cctocl_static_summer_diagnostics_072023_github.R = R file for model diagnostics
same for winter ones.
cctocl_static_prediction_072023_github.R = Predictions based on model outputs, summer and winter together.
cctocl_static_summer_data_github.RData = prepared JAGS data with static detection history of both species in summer season and model variables
cctocl_static_winter_data_github.RData = prepared JAGS data with static detection history of both species in winter season and model variables
Dynamic multispecies models to check the changes in seasonal co-occurrence.
Three different models were applied with season, rural human population density, and elevation covariates.
These models each had their own folders as:
- additive (add) = season + rural human population density + elevaiton
- interaction 1 (int1) = season * rural human population density
- interaction 2 (int2) season * elevation
cctocl_dynamic_<model_type>_072023.txt = JAGS model text file for the named model type
cctocl_dynamic_<model_type>072023_github.R = R file to run the named JAGS model
cctocl_dynamic_<model_type>_072023_gof.txt = JAGS model text file for the named model type's goodness-of-fit test
cctocl_dynamic_<model_type>GOF_072023_github.R = R file to run the named model's goodness-of-fit test
cctocl_dynamic_<model_type>_diagnostics_github_072023.R = R file for named model's diagnostics
cctocl_dynamic_<model_type>_prediction_github.R = R file for predictions from named model's outputs
cctocl_static_summer_072023.txt = JAGS model text file for the named model type
cctocl_static_summer_072023_github.R = R file to run the JAGS model
cctocl_static_summer_diagnostics_072023_github.R = R file for model diagnostics
same for winter ones.
cctocl_static_prediction_072023_github.R = Predictions based on model outputs, summer and winter together.
cctocl_dynamic_multisp_data_github.RData = prepared JAGS data with dynamic detection history of both species and model variables