Method assesses health and size of lizard populations

February 21, 2019

Monitoring programs that survey many wildlife species at the same time across large geographic regions are important for informing conservation decisions, but reptiles are often missing from these efforts because they are difficult to survey. As described in a new Ecology & Evolution study, researchers have now developed a way to provide accurate estimates of lizard populations.

The scientists used their approach at 229 widely-dispersed sites throughout the Mojave Desert in California and estimated a total population size of 80 million for the three most common species of lizards across this 66,830 km2 ecoregion comprising 16% of the total land area of the state.

The results provide a baseline against which to monitor changes in population status and show how the distribution and behavior of lizards vary with differences in vegetation cover, human land use, and temperature. The study also demonstrates how multi-species monitoring programs spanning arid ecoregions can better incorporate information about reptiles.
-end-


Wiley

Related Lizards Articles from Brightsurf:

Not just lizards - alligators can regrow their tails too
A team of researchers from Arizona State University and the Louisiana Department of Wildlife and Fisheries have uncovered that young alligators have the ability to regrow their tails up to three-quarters of a foot, or 18% of their total body length.

Cockroaches and lizards inspire new robot developed by Ben-Gurion University researcher
'The AmphiSTAR uses a sprawling mechanism inspired by cockroaches, and it is designed to run on water at high speeds like the basilisk lizard,' says Ben-Gurion University Prof.

Giant lizards learnt to fly over millions of years
Most detailed every study into how animals evolve to better suit their environments shows that pterosaurs become more efficient at flying over millions of years before going extinct with the dinosaurs.

Study highlights lack of evidence for plasticity-led evolution in lizards
Scientists have challenged a popular theory behind the evolution of similar traits in island lizards, in a study published recently in eLife.

Biodiversity may limit invasions: Lessons from lizards on Panama Canal islands
Introduced species can become invasive, damaging ecosystems and disrupting economies through explosive population growth.

Double take: New study analyzes global, multiple-tailed lizards
Curtin research into abnormal regeneration events in lizards has led to the first published scientific review on the prevalence of lizards that have re-generated not just one, but two, or even up to six, tails.

Lizards develop new 'love language'
Free from the risk of predators and intent to attract potential mates, male lizards relocated to experimental islets in Greece produce a novel chemical calling card, according to new research from biologists in Arts & Sciences at Washington University in St.

Hot time in the city: Urban lizards evolve heat tolerance
Faced with a gritty landscape of metal fences, concrete walls and asphalt pavement, city lizards in Puerto Rico rapidly and repeatedly evolved better tolerance for heat than their forest counterparts, according to new research from Washington University in St.

Detection dogs and DNA on the trail of endangered lizards
Detection dogs trained to sniff out the scat of an endangered lizard in California's San Joaquin Valley, combined with genetic species identification, could represent a new noninvasive sampling technique for lizard conservation worldwide.

Realistic robots get under Galápagos lizards' skin
Male lava lizards are sensitive to the timing of their opponents' responses during contest displays, with quicker responses being perceived as more aggressive, a study in Behavioural Ecology and Sociobiology suggests.

Read More: Lizards News and Lizards Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.