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Fuzzy Thoughts

Everglades Invasive Reptile and Amphibian Monitoring Program (EIRAMP)

12/20/2017

1 Comment

 

​What is EIRAMP?

This Everglades Invasive Reptile and Amphibian Monitoring Program (EIRAMP) was developed as a method for monitoring the spread of exotic species in southern Florida. South Florida is prone to invasion by nonnative species due to its sub-tropical climate; mosaic of agricultural, natural, and urban habitats; and island-like geography being surrounded by water on three sides and freezing temperatures to the north. The state of Florida alone currently hosts more established alien reptiles than any other state or nation (Meshaka et al. 2004).  The natural portions of land are under increasing pressure from invasion by nonnative species, and current methods of interception and eradication of invaders has not been able to match the increasing threats.
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Prevention of the introduction of invasive species is the best defense against invasions. Followed by the early detection of invaders and rapid response efforts towards their removal. Once populations are established and wide=spread the option for management becomes limited and expensive. Surveying current habitat for native amphibians, reptiles, and mammals alongside invasive species aids in determining the impact exotic species have in southern Florida. This monitoring program was developed to establish the status and spread of existing populations of invasive reptiles and amphibians, provides early detection and rapid response for removal of invasive species, and to provide information on the invasive animals collected while surveying.

Introduced Species

Pictured to the right are a handful of invasive species that can be found in Florida. Cuban Treefrogs, Curly Tailed lizards, Green Iguanas, Nile Monitors, Burmese Pythons, and the Argentine Black and White Tegu are a handful of animals which have been introduced. These reptiles and amphibians are some of the invasive animals that are meant to be monitored by the EIRAMP surveys.

The Surveys

​The areas being surveyed have potential for detection of nonnative amphibians, reptiles, and mammals; there are currently 22 areas, with potential for additions if there are particular areas of concern. The surveys conducted once a month, within 30 minutes of sunset. While driving or walking, animal species that are observed are identified and recorded on a data sheet. This information, along with the GPS location, habitat type (parking lot, tree, road, etc.), and the number of individuals observed. Invasive animals (primarily Burmese Pythons) are removed when encountered.

Environmental information including time of night, temperature, humidity, and general weather (rainy, clear, cloudy) are also recorded. At the end of each survey the data recorded is entered into a computer database. Once in the database, all of the surveys can be sorted through. For example, I could ‘search’ for every animal seen under “cloudy” conditions; or for every “Burmese Python” that was encountered. 

Native Species

Pictured to the left are photos of a few Florida native species that are often seen during surveys. Reptiles and amphibians including American Crocodiles, Eastern Diamondback Rattlesnakes, Yellow Rat Snakes, Chicken Turtles, Green Treefrogs, and Scarlet Snakes are all native species to Florida. These native animals are being monitored along with the invasive species in order to quantify the impact invasive animals are having on them.

What Do We Learn?

All of the information recorded during these surveys is put towards management plans and other scientific studies. All of the categories of information can be analyzed for patterns. For example: Looking at temperature and species, we may see a pattern in what animals are seen at certain temperatures; or time of night; or weather...see what I'm saying? This information can then be used to supplement management plans for the removal or control of invasive animals; it can also be used to monitor the populations of native animals. If we see an increase in Burmese Python sightings over the years, and a decrease in the sighting of native snakes, it may imply that Burmese Python presence is influencing the presence of native snakes. This is very important information, especially when threatened species are involved.
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The most important part of these surveys are the number of surveys carried out. The more surveys conducted over several years, the more information and patterns may emerge. Data from 2012 compared to data from 2017 may reveal shocking differences in the the number of invasive species encounters, or in the type of native species encountered (more mammals than reptiles?); it even can show a change in the weather or temperature over time (very wet or dry year; hot or colder?). All of this data is ever growing, and it is never going to become irrelevant. The more we know, the more we can do to help stop invasive animals from spreading.
Picture
About the Author: 
Jenna is a graduate student at the University of Florida. Currently she is studying Wildlife Ecology and Conservation while working in south Florida to manage invasive animals. Jenna primarily works with the Argentine Black and White Tegu and other invasive lizards.
1 Comment
Iowa Pegging link
10/26/2022 01:33:29 am

Nice blog thankks for posting

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  • Home
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    • Our Partnerships >
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