The longnose leopard lizard (Gambelia wizlisenii) is the
largest lizard in Colorado. It lives along the western margin of the
state in arid shrublands, feeding on invertebrates, other lizards, and
the occasional mouse. CNHP investigated what role invasive grasses
have in altering leopard lizard habitat use by fitting them with
telemeters and following them. Leopard lizards appear to avoid areas where
invasive grasses, like cheat grass (Bromus tectorum), dominate
the desert systems where they live (Schorr et al. 2011). Knowing how
species respond to plant invasions can help land managers forecast and
mitigate the impacts of such changes on the landscapes they manage.
Longnose leopard lizard
Longnose leopard lizard habitat monitoring
Longnose leopard lizard with telemeter
Left-click to view, and right-click to download.
Below are links to
Longnose Leopard Lizard Reports
The use of capture success has errantly been used as a predictor of
habitat quality. CNHP investigated this misconception by studying
small mammal communities in various habitat types at Pueblo Chemical
Depot. Mark-recapture studies show that survival rates of small
mammals, such as Ord’s kangaroo rats (Dipodomys ordii),
deer mice (Peromyscus maniculatus), and northern grasshopper
mice (Onychomys leucogaster) differ from capture rates in
different habitats, and original interpretations of “high quality”
habitat based on capture success are misleading (Schorr et al. 2007).
A researcher processes an Ord’s kangaroo rat at a trapping station.