When Railroad Tracks Become Turtle Traps
Roads are obvious dangers for turtles, but railroad tracks can also become barriers and traps, especially for box turtles moving at ground level.
Roads are obvious dangers for turtles, but railroad tracks can also become barriers and traps, especially for box turtles moving at ground level.
Moving a box turtle to a “better” place may seem helpful, but relocation can disrupt home-range behavior, increase movement, and expose turtles to greater risk.
Sea turtle TEDs and terrapin BRDs are different devices for different fisheries, but they share the same conservation principle: modify fishing gear so the fishery can continue while reducing predictable turtle mortality.
Diamondback terrapins have a slow life-history strategy: high nest and hatchling mortality, delayed maturity, and long adult lifespans. That means crab-pot mortality of subadults and adults can have serious consequences for population stability.
People often ask what should be done with Burmese pythons after they are captured. But the harder problem is not using dead pythons — it is finding enough live ones to meaningfully reduce the population.
Not every nonnative species becomes invasive. Understanding the difference among introduced, established, and invasive species is essential for interpreting biological invasions, including Burmese pythons in Florida.
Burmese pythons once seemed like unlikely large-scale invaders, but their size, diet, reproduction, maternal care, low energy needs, and low detectability help explain why they became such a formidable ecological problem in Florida.
Large Burmese pythons are physically capable of killing a person, but no human death has been attributed to a wild python in Florida. The real question is how to think clearly about low-probability but real risks.
Burmese pythons do not only affect the animals they eat. By reducing mammalian predators such as raccoons and opossums, they may indirectly alter turtle nest predation in South Florida.
The 2012 PNAS study documented severe declines in several mammal species in Everglades National Park during the same period that invasive Burmese pythons became established and widespread.