Use of field‐portable ultrasonography reveals differences in developmental phenology and maternal egg provisioning in two sympatric viviparous snakes - Sparkman, Amanda M.; Chism, Kenneth R.; Bronikowski, Anne M.; Brummett, Lilly J.; Combrink, Lucia L.; Davis, Courtney L.; Holden, Kaitlyn G.; Kabey, Nicole M.; Miller, David A. W. (Ecology and evolution, 2018)
Keywords: Animal behavior; Annual variations; Demography; Developmental stages; Ecological niches; Eggs; Embryogenesis; embryonic development; Embryonic growth stage; Embryos; Environmental conditions; Evolution; Fetuses; Fitness; Interspecific; Investment; Life cycles; Lizards; Mountains; Niches; Original Research; Placenta; Placental transfer; Provisioning; reproduction; Reproductive fitness; Snakes; Species; Sympatric populations; Thamnophis; Thamnophis sirtalis; Ultrasonic imaging; ultrasonography; Ultrasound; Viviparity; viviparity; ultrasonography; Thamnophis; embryonic development; reproduction