University of Central Florida Undergraduate Research Journal - Studying the Effects of Predatory Presence and Enrichment on Cryptoprocta ferox Behavior
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To determine the impact P. p. orientalis had on the female C. ferox, her behaviors were tallied and converted to percentages for each day observed (Figure 1). These percentages were then averaged and compared to before and after P. p. orientalis was introduced to the area. I completed an ANOVA test to determine the significance of these percentages. The p-value was approaching one using a two-tail distribution and two samples of unequal variance type, or heteroscedastic. There was little significant difference between behaviors during the two periods.

Figure 1. Percentage of behavior presented before and after the introduction ofP.p. orientalis

Enrichment is meant to deter the individual from unwanted behaviors, such as pacing (Nilsson et al. 2014). The amount of pacing was recorded before and after enrichment from the previous day was switched out (Figure 2). An ANOVA was also used to compare the values. The p-value was .89 when using a two-tailed distribution and paired-type. There is no significant difference between the amount of pacing before and after the exchange of enrichment.

Figure 2. Pacing before and after enrichment was exchanged

The amount of head rolling before and after the exchange of enrichment was also compared using an ANOVA (Figure 3). The f test produced a p-value (.0011) that was smaller than the alpha level suggesting the use of a homoscedastic type t-test. The t-test produced a p-value (.20). There is no significant difference between the number of head rolls recorded before and after the daily exchange of enrichment.

Figure 3. Head rolling before and after enrichment was switched out of the enclosure