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Population Models Reveal the Importance of Early Life‐stages for Population Stability of an Imperiled Turtle Species by M. D. Knoerr; A. M. Tutterow; G. J. Graeter; S. E. Pittman; K. Barrett is a Environmental Science article available to read on EtoBox.

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## Abstract Demographic models are useful for projecting population trends, identifying life stages, most important to population dynamics, and investigating the demographic effects of potential management scenarios. We incorporated site‐specific population parameters into stage‐based matrix models to estimate population growth and to assess potential management scenarios for five intensively sampled (>15 years) populations of federally threatened bog turtles (Glyptemys muhlenbergii) in North Carolina, USA. Only two of the five populations modeled were stable or growing under estimated vital rates. Long‐term sampling of bog turtle populations in NC suggests the declining populations in this study share several demographic characteristics with other populations in the region. Elasticity analysis revealed small changes in adult survival rates have the largest effect on population growth rate. These models also highlight that increased survival of egg and juvenile stages can sometimes buffer higher adult mortality and emigration, and reduced survival at multiple life stages can induce population‐level decline. Our results indicate that management scenarios targeting increased recruitm

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Author

M. D. Knoerr; A. M. Tutterow; G. J. Graeter; S. E. Pittman; K. Barrett

Publisher

Wiley

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)