@article{edd7c1fbeac94c4b8db831bba67a3691,
title = "Survivorship and Spatial Patterns of an Urban Population of Texas Horned Lizards",
abstract = "Habitat fragmentation has negative consequences on threatened and endangered species by creating isolated populations. The Texas horned lizard (Phrynosoma cornutum) is experiencing population declines and localized extirpations throughout its range and has been classified as a species of greatest conservation need in Oklahoma, USA. Younger age classes have been poorly studied but may be vital to the stability of remaining populations. To address gaps in knowledge concerning subadult (hatchling and juvenile) morphometrics, survivorship, and home range sizes, we studied 2 cohorts of subadults, for 2 years each, covering their hatching and juvenile years (2016–2019). We used a combination of radio-telemetry and novel harmonic radar methodology to study a closed population of Texas horned lizards in 15 ha of native grassland at Tinker Air Force Base, Oklahoma. Population abundance for adults and juveniles was estimated as 56.5 ± 5.5 lizards and density as 7.96 lizards/ha. Our lowest estimates of survival indicated an average survival probability for the hatchling life stage of 0.285 (95% CI = 0.15–0.44), which is lower than for adults on the site. Average home range size increased from hatchling to adult life stages. Our results will have an immediate effect on the planning and assessment of ongoing headstart and management programs for Texas horned lizards.",
keywords = "Oklahoma, habitat fragmentation, harmonic radar, hatchling, home range, long-term monitoring, telemetry, urbanization",
author = "Vesy, {Miranda N.} and Watters, {Jessa L.} and Moody, {Raymond W.} and Schauber, {Eric M.} and Mook, {Jennie M.} and Siler, {Cameron D.}",
note = "Funding Information: We thank S. J. Eliades, E. D. Ellsworth, E. S. Freitas, W. F. Hanson‐Regan, J. M. McGrath, J. E. Norris, S. N. Smith, and volunteers from the Oklahoma City Zoo and Botanical Garden for assistance with data collection in the field. We thank the biologists at the Natural Resources office of TAFB for their continued assistance throughout this project, particularly D. M. Nolan and J. R. Krupovage. We gratefully acknowledge T. L. Miller for his assistance with geographic information system data. We thank C. M. Curry for providing valuable assistance with projects in R. We thank M. H. Hoefnagels, A. G. Allen, S. D. Wiser, and E. D. Ribeiro, and members of the Siler Lab for critical reviews of early drafts of this manuscript. This work was supported by Great Plains Cooperative Ecosystem Studies Unit (CESU) Agreement W9132T1820005 to CDS and JLW, Great Plains CESU Agreement W9132T1820005 to EMS, the University of Oklahoma's Department of Biology, and Southern Illinois University Carbondale's Cooperative Wildlife Laboratory. Funding Information: We thank S. J. Eliades, E. D. Ellsworth, E. S. Freitas, W. F. Hanson-Regan, J. M. McGrath, J. E. Norris, S. N. Smith, and volunteers from the Oklahoma City Zoo and Botanical Garden for assistance with data collection in the field. We thank the biologists at the Natural Resources office of TAFB for their continued assistance throughout this project, particularly D. M. Nolan and J. R. Krupovage. We gratefully acknowledge T. L. Miller for his assistance with geographic information system data. We thank C. M. Curry for providing valuable assistance with projects in R. We thank M. H. Hoefnagels, A. G. Allen, S. D. Wiser, and E. D. Ribeiro, and members of the Siler Lab for critical reviews of early drafts of this manuscript. This work was supported by Great Plains Cooperative Ecosystem Studies Unit (CESU) Agreement W9132T1820005 to CDS and JLW, Great Plains CESU Agreement W9132T1820005 to EMS, the University of Oklahoma's Department of Biology, and Southern Illinois University Carbondale's Cooperative Wildlife Laboratory. Publisher Copyright: {\textcopyright} 2021 The Authors. The Journal of Wildlife Management published by Wiley Periodicals LLC on behalf of The Wildlife Society.",
year = "2021",
month = aug,
doi = "10.1002/jwmg.22064",
language = "English (US)",
volume = "85",
pages = "1267--1279",
journal = "Journal of Wildlife Management",
issn = "0022-541X",
publisher = "Wiley-Blackwell",
number = "6",
}