J. Alfonso Ortega-Santos

Microhabitat Structure of Winter Turkey Roosts in South Texas

We located 18 Rio Grande wild turkey (Meleagris gallopavo intermedia; RGWT) winter roost sites and 18 random sites at three study areas in Brooks and Kennedy Counties from December 2006 to February 2008. Our objective was to determine microhabitat structural characteristics of RGWT winter roosts that distinguished them from random locations in south Texas. At each roost, we measured tree height, diameter at breast height (dbh), canopy cover, and tree density. Variables were tested for normality using a Kolmogorov-Smirnov test. A t-test was used to examine differences between roost and...

Year
2008

Detectability of Rio Grande Wild Turkeys in South Texas

Detection estimates of Rio Grande wild turkey (Meleagris gallopavo intermedia, RGWT) are lacking and little research has focused on the development and evaluation of survey techniques for estimating RGWT populations. The objective of this study was to compare RGWT detection rates using aerial (Cessna 152) and roadside surveys in different vegetation communities in south Texas. Decoy flocks were randomly set 0-100 m from roads prior to surveys. Detection rate was estimated as (n decoys observed/n decoys available) x 100. Surveys were conducted in February and March 2007 and in November and...

Year
2008