Deforestation and Its Impact on Biodiversity 🌳:

Deforestation is defined in the dictionary as “the action of clearing a wide area of trees.” Seems simple, right? The truth is this run-of-the-mill dictionary response does not quite capture the full picture, and by that I mean the causes, the effects, and how it is just an excuse for more biodiversity and wildlife to be harmed. It does not properly inform people how dangerous and cruel a practice it is. But don’t worry, because I do.

What is Biodiversity?

Biodiversity is the variety of species of plants and animals on Earth. Imagine yourself walking through a huge forest, the Amazon rainforest, particularly. You may see vibrant flowers, dazzling insects, and hear the chirps of different birds circle the air. That is biodiversity. There are a few levels to this:

1. Genetic Diversity: The variety of genes within a species. This can affect their ability to survive

2. Species Diversity: The number and variety of species

3. Ecosystem Diversity: The variety of ecosystems

Notice the word “variety” in each of the definitions displayed above. Within an ecosystem, variety is amazing. It allows all the amazing things you saw and the sounds you heard while walking in the rainforest a few moments ago. Now, picture yourself back in that rainforest; however, this time it is a little different. There are no more flowers, trees, insects, birds, or anything at all. It's all just dead. That, my friend, is the long-term effect of deforestation, and let me tell you…

It's not pretty. 

Since 1990, we have lost 420 million hectares of forest solely due to deforestation.

So… what really is deforestation?

Since the dictionary definition does not help, let me rephrase it: Deforestation is the process of clearing space in the forest to make room for other human uses. This can involve cutting down trees, clearing land for agriculture, and plowing away for roads and neighborhoods. 

What Causes Deforestation?

We have already gone over what it is, so let’s go over why it happens. Why do humans need more land than they already have? There are a few main answers to this question:

Agriculture:

Room for agriculture and farming is the leading cause of deforestation, as trees are often cleared to make way for new crops. A prime example of this is the forests being cleared for palm oil farming. Palm oil is used in many foods, such as cookies, chips, ice cream, and even processed foods like instant noodles. The demand for this oil has significantly increased, leading to more clearing of the forests in areas such as Indonesia and Malaysia. 

Clearance for Livestock:

This one is pretty straightforward. Livestock need grazing land, and raising livestock requires a lot. Though it may seem simple, and seems like it does not require that much land, it is the leading cause in areas such as Australia. It drives about 79 percent of deforestation in this region, causing a huge chunk of the forests to be cut down.

Urbanization:

Urbanization contributes significantly to deforestation as expanding cities require vast areas of land for infrastructure, housing, transportation networks, and commercial developments. Forests are often cleared to make way for these developments, leading to the loss of biodiversity, disruption of ecosystems, and increased carbon emissions. As populations grow and urban areas sprawl outward, natural habitats are increasingly replaced with concrete landscapes, reducing forest cover and putting pressure on surrounding green spaces.

Timber/ Wood Logging:

Wood logging, particularly when done unsustainably, is a major driver of deforestation. Logging operations remove trees for timber, paper, and other wood products, often targeting high-value species and leaving forests fragmented and degraded. In many cases, illegal logging further exacerbates the problem by bypassing environmental regulations and contributing to habitat destruction. Even selective logging can have long-term ecological impacts, reducing forest density, weakening ecosystem resilience, and opening up previously intact areas to further exploitation.

These are just the few main causes of deforestation, all of which have a huge impact on biodiversity and the harming of habitats.

Species in Danger

Species	Region	Cause of Threat	Impact
Sumatran Rhinos	Southeast Asia	Habitat loss from palm oil plantations	Fewer than 30 left; increased poaching risk
Chimpanzees	West Africa	80%+ forest loss	Disease transmission, human conflict
Pygmy Sloths	Panamanian island	Mangrove deforestation for wood and urban growth	Population drop from ~500 to ~70
Monarch Butterflies	North America & Mexico	Forest loss in Mexico, herbicide use in U.S./Canada	Loss of wintering forests and milkweed food plants
Koalas	Australia	Eucalyptus tree removal	Malnutrition, roadkill, predator vulnerability
Lemurs	Madagascar	3+ million hectares of forest lost (2000–2016)	60+ species extinct; ongoing decline from habitat loss and hunting
Jaguars	Amazon Rainforest	Forest cleared for development	Increased livestock attacks and retaliatory killings
African Elephants	Sub-Saharan Africa	Forest-to-farm conversion	Human conflict, higher poaching risk

Why It Matters (conclusion)

Every tree that is lost is part of an interrupted ecosystem. Saving forests means saving the countless species that depend on them—and preserving the world's biodiversity for future generations. While large-scale efforts are important, individual choices also make a difference. You can help by using less paper, purchasing sustainably sourced products, planting trees, and supporting organizations that promote forest conservation, such as the California Forest Conservation Foundation. Even simple actions—like learning more and sharing what you know—can spark change. Protecting forests starts with each of us.

References: 

IFAW. “What Is Deforestation and Its Impact on Wildlife?” IFAW, 14 Dec. 2023, www.ifaw.org/journal/what-is-deforestation-impact-wildlife

Earth.Org. “Deforestation Statistics for 2024.” Earth.Org, 17 Apr. 2024, earth.org/statistics-deforestation. 

Next time… How Satellites Can Help Track Climate Change