John Hoogland
Species Cumulative number of male weanlings Cumulative number of male weanlings Cumulative sex ratio BTPDs 638 580 52.38% GPDs 1313 1313 50.00% UPDs 887 852 51.01% WTPDs 369 376 49.53% FILE DESCRIPTION Keywords: BGUW, Cumulative sex ratio of weanlings File name: Fig 21.1, BGUW, Cumulative sex ratio of weanlings over all years, 30 July 2026 This file contains information from all juveniles captured and marked at first juvenile emergence for all four species All BTPD data are from single Rankin Ridge Colony at Wind Cave National Park from 1975 through 1988 These BTPD data DO include BTPD sex ratio data from Jim Loughry in 1989 All UPD data are from single Horse Corral Colony at Bryce Canyon National Park from 1995 through 2025 All WTPD data are from single study colony at the Arapaho National Wildlife Refuge from 2006 through 2012 These WTPD data do NOT include sex ratio data from my dissertation research in 1974 though 1976 Some GPD data are from single colony at Petrified Forest National Park (PEFO) in 1989 through 1994 These PEFO GPD data do NOT include sex ratio data from 1995, when plague struck at PEFO Some GPD data are from single Redondo Meadow Colony (RMC) at Valles Caldera National Preserve (VCNP) in 2013 through 2016 Some GPD data are from single Visitor Center Colony (VCC) at VCNP in 2017 and 2018. All these data checked TWO TIMES for each species A few juveniles of all species disappeared soon after first emergence from the natal burrow-entrance before I could capture them. For obvious reasons, these juveniles are NOT included this EXCEL file for in Fig 24.1. Cumulative sex ratio = number of male weanlings / number of female weanlings x 100 Cumulative sex ratio is shown as percentage of all weanlings that WERE males File name: Fig 21.1, BGUW, Cumulative sex ratio of weanlings over all years, 30 July 2026