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The first response to reports of declining amphibian populations was the formation of the Declining Amphibian Population Task Force (DAPTF) in 1990. DAPTF led efforts for increased amphibian population monitoring in order to establish the extent of the problem, and established working groups to look at different issues.
A population that was once in the tens of thousands was down to a mere 3,000. [13] The largest known chorusing groups persist in Bastrop County, but the choruses monitored in Bastrop State Park showed a dramatic decline during the mid-1990s, with little recovery of those numbers since then. Importantly, that state park is the only public land ...
Canyon tree frog: Isolated populations in arid environments and streambanks in Texas [32] LC [33] Dryophytes chrysoscelis : Cope's gray tree frog: Documented in east-central Texas [34] LC [35] Dryophytes cinereus: Green tree frog: Occurs throughout eastern Texas and as far south as the Rio Grande Valley [36] LC [37] Hyla squirella: Squirrel ...
Officials say the crawfish frog likely was at the site during that period, as well, and remained in place until the mid to late 1980s, when they "vanished suddenly and mysteriously, possibly ...
Aug. 27—For the fourth time, hundreds of endangered frogs were released into the Columbia National Wildlife Refuge with the intent to revitalize their population. The nearly 400 northern leopard ...
"That means in just my lifetime, 50 years, we've seen a decline of 73% in the average size of these wildlife populations," noted Dr. Robin Freeman, global biodiversity expert with the Zoological ...
Elsewhere, habitat loss is a significant cause of frog population decline, as are pollutants, climate change, increased UVB radiation, and the introduction of non-native predators and competitors. [204] A Canadian study conducted in 2006 suggested heavy traffic in their environment was a larger threat to frog populations than was habitat loss ...
The average size of global wildlife populations have declined by 73% in 50 years, a new study by the World Wildlife Fund has found.. The study, titled the 2024 Living Planet Report, monitored ...