This current study was undertaken to examine the avifauna of a creosotebush community located in the eastern margin of the Chihuahuan Desert near the municipality of Garcia in the state of Nuevo Leon, Mexico.
The vegetational community is dominated primarily by the creosotebush Larrea tridentata, intergrading with Tamaulipan thorn scrub species, that are not typical of the Chihuahuan Desert.
In comparison, Blake (1984) reported 47 species of birds in only four groups/seven subgroups from a creosotebush community, but in another desert of Nevada.
For grama grassland, creosotebush, mixed-lowland scrub, and alkali sacaton habitats, we pooled data from 2004, 2005, and 2007 (precipitation and percentage cover by forbs were similar among years; Fig.
In 2004, 2005, and 2007, production of forbs in creosotebush shrublands was related positively (r = 0.
Volume of shrubs also was not estimated in creosotebush shrublands because of low rates of encounter.
Estimates of mean and error obtained with short line transects were indistinguishable from those obtained with long line transects for grass, creosotebush
and tarbush cover using either thirty 4 m transects compared to three 45 m transects in, or one hundred 4 m transects compared to six 45 m line transects in mixed desert scrub habitat (Table 1).
The burrow was on the northeast side of a creosotebush
, near the base of a north-facing slope and the opening of the burrow faced 348[degrees].
Lower elevations were dominated by mesquite (Prosopis), creosotebush
(Larrea tridentata), tarbush (Flourensis cernua) and prickly pear (Opuntia).