Are Iguanas Dangerous in Florida?

While iguanas in Florida can present some risks, they are generally not considered a direct danger to humans. However, their impact on the local ecosystem and infrastructure, along with the health risks associated with their presence, cannot be overlooked. This article explores the various aspects of iguanas in Florida, with a focus on their behavior, role as an invasive species, health risks, and ecological concerns.

Behavior and Non-Dangerous Nature

Iguanas are typically docile creatures and generally avoid confrontation. If threatened, they may bite or scratch, but this is rare. Being cold-blooded, iguanas are particularly vulnerable to cold weather, leading to seasonal falls from trees during rare cold spells. They are more likely to bite if startled, but their bites are not poisonous and are often out of defensive reflex rather than aggression.

Invasive Species and Ecological Impact

Florida is home to introduced iguanas, which are considered an invasive species. Their presence has led to significant damage to landscaping, gardens, and infrastructure. Iguanas can burrow under sidewalks, foundations, and seawalls, causing erosion and potential structural damage. Their diet, which includes many of the plants homeowners cultivate, can lead to defoliation and other costly issues.

Health Risks and Pet Interactions

One of the primary health risks associated with iguanas is the potential for salmonella infection. These reptiles can carry the bacteria on their skin and in their droppings. Proper hygiene, such as washing hands after handling or coming into contact with them, is crucial to avoid infection. If you have small pets, it's important to be cautious, as iguanas may view them as prey or a threat.

Winter Woes and Recent Trends

The recent cold weather in Florida posed a significant threat to iguanas, as the cold temperatures caused some to fall from trees and even die. Florida residents were advised to kill iguanas whenever possible, due to their destructive behavior and the health risks they pose. The winter of 2023 saw many iguanas suffering due to cold weather, highlighting the challenges these animals face.

Key Species and Diet

There are several species of iguanas commonly found in Florida, including the iguanas iguana (common green iguana), Ctenosaura pectinata (Mexican spiny-tail), and Ctenosaura similis (black spiny-tail). These herbivores occasionally supplement their diet with insects, other lizards, or small animals. Their preference for basking on sidewalks and concealed burrows can lead to further ecological and infrastructural problems.

Favorite Foods:
- Hibiscus
- Orchids
- Impatiens
- Roses
- Nasturtiums
- Vegetable garden favorites like broccoli, beets, lettuce, squash, and melons
- Fruits

Understanding the behavior, diet, and ecological impact of iguanas can help residents of Florida manage their presence and mitigate the risks.

Conclusion

While iguanas in Florida are generally not a direct danger to humans, their presence can lead to various ecological and health issues. By understanding their behavior, the risks they pose, and taking appropriate measures, residents can better coexist with these fascinating reptiles.