Spatiotemporal dynamics of mesocarnivore populations

Xingan,; Wang, Guiming

doi:10.2981/wlb.00429

Cited by 4 publications

(1 citation statement)

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“…The best model had the lowest Akaike information criterion corrected for small sample size (AICc), and a competing model had the ΔAICc < 2.0 (Burnham & Anderson, 2002). If the estimates of

{b}_{11}

and

{b}_{22}

are significantly less than 1.0 with the 95% confidence interval (CI) below 1.0, we concluded that the populations of coyotes and wild turkeys were subjected to density dependence (Royama, 1992; Wang et al, 2009; Xingan & Wang, 2018). We calculated the model‐average predictions of coyote and wild turkey annual relative abundances as the weighted means of the predictions of the three candidate models with Akaike weights as weights.…”

Section: Methodsmentioning

confidence: 98%

Inverse relationships between coyote and wild turkey population time series: Implications for future studies of predator–prey interactions

Wang,

Butler,

Shan

2023

Wildlife Letters

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Changes in predator communities such as the emergence of new predators alter predator–prey interactions profoundly. Coyotes (Canis latrans) have expanded their geographic distributions from the western United States (US) to the Eastern US, potentially suppressing some prey populations as their relative abundance has increased. To assess the relationship between coyotes and one of their prey, the eastern wild turkey (Meleagris gallopavo silvestris), we employed time series analysis and multivariate autoregressive state‐space models (MARSSMs) to a 23‐year capture per unit effort data set from both species in the state of Mississippi, US. The best MARSSM model indicated density dependence in each species. The competing MARSSM indicated that increases in coyote relative abundance reduced the population growth rate of wild turkeys. We recommend that future studies use long‐term time series of multiple coexisting predators and their alternative prey to assess the effects of the predator guild on the dynamics of prey populations.

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“…The best model had the lowest Akaike information criterion corrected for small sample size (AICc), and a competing model had the ΔAICc < 2.0 (Burnham & Anderson, 2002). If the estimates of