Amphibians and Reptiles

Project Overview Islands across the tropical Pacific are facing threats from invasive species and other climate stressors, and recent detections of new invasive species highlight gaps in current biosecurity efforts. Researchers supported by this Pacific Islands CASC project will work with local governments, federal agencies, and regional partners to conduct rapid bioassessments, train...

Project Overview: Hurricane Helene caused widespread damage to homes, infrastructure, and wildlife habitat in western North Carolina. Resulting disruptions to stream ecosystems have threatened species like the eastern hellbender, a fully aquatic salamander and key indicator of stream health. Scientists supported by this Southeast CASC project will compile and evaluate pre-storm habitat...

Project Overview Wetlands in forested areas of the Upper Midwest provide vital habitat for amphibians, but changing patterns of drying under climate change can disrupt species reproduction and growth. Researchers supported by this Midwest CASC project will use water depth sensor data, machine learning models, and long-term amphibian surveys to predict wet and dry periods for wetlands...

Project Overview Forests in the Pacific Northwest support an extensive network of headwater streams and critical habitats for over 50 amphibian species, but face challenges from historical resource extraction, forest management, and climate change. Researchers supported by this Northwest CASC project will identify and map climate refugia to guide conservation strategies for at-risk...

Project Overview Atolls in the tropical Pacific and Indian Oceans are experiencing significant changes to their landscapes and biodiversity due to climate change. Researchers supported by this Pacific Islands CASC will use historical data to study a 50+ year window of change in both islet size and the occurrence of lizard species. This work will better inform lizard distribution in light...

Amphibians in the US Caribbean, like the well-known coquí frog, are particularly vulnerable to climate change. Coquí frogs are represented by 17 species across Puerto Rico and US Virgin Islands and include several mountainous and coastal species that are threatened by extreme heat and drying, loss of coastal freshwater marshes through saltwater intrusion, or both. Over the past decade...

Many amphibian species are highly susceptible to changes in precipitation timing and volume because of their reliance on intermittently flooded surface water pools, which are primarily filled through snowmelt and precipitation runoff. ​With increasing evapotranspiration (i.e. transfer of water from land to the atmosphere) due to climate change, the timing and availability of water in key...

The Pacific Northwest is a hotspot for temperate amphibian biodiversity and is home to many species of salamanders and frogs found nowhere else on earth. Changing climatic conditions threaten habitat for many of these species and may also enhance the risk of disease and invasive species encroachment. State and federal wildlife agencies are in the process of evaluating these threats, but

Amphibians are a group of animals facing especially severe declines due to many factors including climate change and a common pathogen, the amphibian chytrid fungus. To make informed decisions about amphibians, wildlife managers need to identify species facing the greatest threats and the actions that will most effectively minimize impacts of those threats. Although some amphibian...

Climate change adaptation research has made major advances over the last decade. For example, much is known about the impacts of climate change, many novel adaptation planning approaches have been developed, decision tools have become ubiquitous, and many novel adaptation options have been proposed. However, additional research is needed to demonstrate how these adaptation planning...

Downed wood on the forest floor does more than provide habitat for amphibians, reptiles, birds and mammals. These decomposing habitat structures modify the temperature and moisture conditions in the forest itself. Inside and around downed wood, local climate conditions, or microclimates, provide wildlife with stable habitats that allow for persistence during and after wildfires. Cooler...

The U.S. Fish and Wildlife Service and the Puerto Rico Department of Natural and Environmental Resources need to develop a plan of action to help the recovery of two endangered species in the genus Eleutherodactylus (commonly known as “coqui”), while also reducing the risk that 14 other coqui species would be added to the Endangered Species list. Prior work by these researchers has...