Question

Wildfires have both negative and positive effects on an ecosystem. Which is a negative effect of wildfire on any ecosystem?

Answer 1

How do fires affect the ecosystem?

It plays a key role in shaping ecosystems by serving as an agent of renewal and change. But fire can be deadly, destroying homes, wildlife habitat and timber, and polluting the air with emissions harmful to human health. Fire also releases carbon dioxide- a key greenhouse gas—into the atmosphere.

Benefits: The ecological benefits of wildland firesoften outweigh their negative effects. ... Firesoften remove alien plants that compete with native species for nutrients and space, and remove undergrowth, which allows sunlight toreach the forest floor, thereby supporting the growth of native species

Answer 2

The major negative impact of wildfires is that they impact the animal habitat  and reduce their population in the ecosysytem.

Explanation:

A wildfire can be defined as a natural disaster in which an uncontrolled fire occurs in an area of combustible vegetation.

Based on the types of vegetation in an area wildfire can classifies in several other types of natural fire such as brush fire,  desert fire, forest fire, bushfire (in Australia), grass fire and hill fire. The causes of wildfire involves dry climate, lightning, and volcanic eruption.  

Wildfire has both positive and negative impact on ecosystem. Positive impact of wildfire as following:

1. It heats up the soil that support germination of plants.
2. It allows woody seed pods present in canopy to relese its seed on a firtile ash ground.
3. It creates hollows on tree logs which can be further used as shelter for animals.
4. It also helps in the growth of new plants or vegetation that provides food  to many people and local residents.

Negative impact of wildfire are as following:

1. It damages the vegetation communities or animal habitat which take hundreds of years to get recover.
2. It kills the wild life including plants or animals present in the forests.
3. It causes soil erosion and sedimentation of wetlands.
4. It open areas to impacts of invasion of weeds and wild animals, as well as human exposure and vandalism.

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