Jami MacNeil MS Graduate Student Purdue University
Herpetofauna “crawling or creeping animals” “Herps”
AMPHIBIANSREPTILES Smooth skin No claws Scaly skin Claws Ectotherms
Family: Plethodontidae No lungs! Nasolabial grooves (Live in the woods!)
WETLANDFOREST Pond-breeding Aquatic larval stage Terrestrial breeders Direct development
Habitat Soil, leaves, rocks, logs Activity After dusk in spring and fall After rainfall Diet Invertebrates Mating Late fall to early spring
Nutrient cycling Regulate invertebrates Regulate decomposers Abundant
Easier to monitor one species than ALL Important to forest ecosystems Sensitive Need moisture Small home range Territorial
How does timber management affect forest ecosystems in Indiana? 100 year study
Morgan-Monroe and Yellowwood State Forests 3 Treatments Control Even-aged Uneven-aged 3 Replicates Morgan Monroe Brown
Goals: Determine how harvests affect relative abundance Determine how harvests affect species richness
Visual encounter Drift fences Natural cover objects Nighttime surveys Auditory surveys Radio telemetry
Artificial Cover Objects (ACOs) Wood boards (12”x12”) Grids (30 boards each)
84 cover board grids 30 boards per grid 2520 boards!
Checked bi-weekly, spring and fall
REBA 61% All others <1% SOTW 1% NOSL 4% ZIZA 34% Total encounters to date: 22,063
Precipitation Soil moisture Temperature Downed woody debris Canopy cover Leaf litter
Visible Implant Elastomer (VIE) Injected beneath skin Gradually hardens
Preliminary Findings: Relative abundance decreases where canopy is removed Salamander #s naturally vary over time and space Temperature and precipitation are important
Hardwood Ecosystem Experiment Indiana Department of Natural Resources, Division of Forestry, Purdue University, Ball State University, Drake University, and The Nature Conservancy Funding is provided by the Department of Forestry and Natural Resources, Purdue University, and by the Hardwood Ecosystem Experiment Thanks to the Indiana DNR Division of Forestry; Jeff Riegel, Rita Blythe, Kaylee Decosta, Jamie Nogle, Leslie Schreiber, Keegan Ramey, members of the Williams lab group, and the many volunteers who have contributed to data collection. Brown County State Park— accommodations and outreach opportunities!
AMPHIBIANSREPTILES Smooth skin No claws Scaly skin Claws
WETLANDFOREST Pond-breeding Aquatic larval stage Terrestrial breeders Direct development