Radio Transmitter Implantation and Movement in the Wild Timber Rattlesnake ( Crotalus horridus ).

Radiotelemetry transmitters have become critical to studies of wildlife ecology. However, little is known about how transmitter implantation surgery affects the mobility of some species, including the timber rattlesnake, Crotalus horridus . Tracking snake movement can provide insights into the effects of transmitter implantation.

Seasonal variation in hematology and blood plasma chemistry values of the timber rattlesnake (Crotalus horridus).

Hematology, biochemical analyses, and body condition indices are useful tools for describing animal health, especially when making management decisions for species of conservation concern. We report hematologic, biochemical, and body condition index data for 13 free-ranging timber rattlesnakes (Crotalus horridus) sampled repeatedly over an active season in Indiana, USA.

Algorithm for Fourier propagation through the near-focal region.

A standard technique for beam propagation modeling of large and complex optical systems, such as the National Ignition Facility, is the Talanov approach. We describe a modification to the Talanov algorithm that avoids its inherent inability to treat interactions in the Rayleigh region. The algorithm has been validated with analytic and numerical calculations and is demonstrated to function as expected in the case of a NIF spatial filter.

Short-term forest management effects on a long-lived ectotherm.

Timber harvesting has been shown to have both positive and negative effects on forest dwelling species. We examined the immediate effects of timber harvests (clearcuts and group selection openings) on ectotherm behavior, using the eastern box turtle as a model. We monitored the movement and thermal ecology of 50 adult box turtles using radiotelemetry from May-October for two years prior to, and two years following scheduled timber harvests in the Central Hardwoods Region of the U.