Methods: This community-engaged study uses interviewer-administered surveys (n=160) (mean age = 55.1, SD = 13.3; 42.5% female) through non-probability sampling strategies. All participants were enrolled tribal citizens and earned income from subsistence activities. Participants answered questions on their observations and experiences of environmental changes in their parish (county) and estimated how this exposure threatened their livelihood as well as their likelihood of completing adaptation activities. All data was loaded, cleaned, and analyzed using R version 3.6.1 (R Core Team, 2019; RStudio Team, 2019). Nested regression models were used to assess predictors of adaptation activities, and the models are compared using a likelihood ratio test. The PI worked with a community advisory council to guide culturally relevant research procedures.
Results: Nested regression models were used to predict adaptation activities. For comparison purposes, a null model was run first. Second, a model containing demographic variables (age, sex, and education) was run. No predictor was significant, nor was the model, f (3, 152) < 1, p = 0.79. Last, the model was run again with additional predictors connection to place, environmental concerns, job concerns, discrimination, and ethnic identity. This model was significant, f (8, 147) = 8.54, p < .001. Having a connection to place was significantly associated with greater adaptation activities, b = 0.52, SE = 0.22, t = 2.33, p = 0.02. Feeling greater concern about the environment was also associated with greater adaptation activities, b = 0.74, SE = 0.15, t = 5.05, p < .001. Last, having experienced discrimination was associated with greater adaptation activities, b = 0.66, SE = 0.24, t = 2.76, p = 0.01, adjusted r2 = 0.28. No other predictor was significant. The model explained significantly more variance than the demographics model, x2 (5) = 119.7, p < .001.
Conclusion: Although perceptions of discriminatory policies may have motivated participation in adaptation activities, there was also expressed cultural buffers such as connection to land and strong Indigenous identity. Community-based adaptation policies on Indigenous lands can be seen as acts of resistance when they consider cultural interactions with the environment, and traditional ecological knowledge. Future research could explore resilience implications of community-based adaptation activities.