7.2.4 Impact of Environmental Change

In this lesson, we will explore the impact of various environmental factors on the distribution of species and how these changes can occur due to natural or human-induced causes.

Environmental Factors Affecting Species Distribution

Environmental changes play a crucial role in shaping the distribution of species within ecosystems.

Temperature:

• Changes in temperature can significantly impact the distribution of species.
• Some species have specific temperature requirements for survival and reproduction.
• Temperature variations, whether seasonal or long-term, can affect the suitability of habitats for different species.

Availability of Water:

• Water availability is essential for the survival of many species.
• Changes in precipitationWhere a solid forms from a liquid solution, often by the addition of another substance. patterns, such as droughts or increased rainfall, can affect the distribution of species, particularly those adapted to specific moisture levels.
• Aquatic species, in particular, are sensitive to changes in water availability and quality.

Composition of Atmospheric Gases:

• The composition of atmospheric gases, especially oxygen and carbon dioxide, can influence the distribution of species.
• Changes in atmospheric gases, such as increased carbon dioxide levels due to human activities, can affect the physiology and behaviour of organisms, influencing their distribution patterns.

Types of Environmental Changes

Seasonal Changes:

• Seasonal changes, such as variations in temperature and precipitation, can impact the distribution of species.
• Some species may migrate to more suitable habitats during different seasons to cope with changing environmental conditions.

Geographic Changes:

• Geographic changes, including natural phenomena like tectonic movements or geological events, can alter landscapes and impact species distribution.
• For example, the formation of mountains or the opening of new landAll natural resources used in production, including soil, water, forests, minerals, oil, and other resources from nature. bridges can create barriers or pathways for species dispersal.

Human-Induced Changes:

• Human activities can significantly alter the environment and impact species distribution.
• Deforestation, habitat destruction, pollution, and climate change caused by human actions can disrupt ecosystems, leading to changes in species distribution.
• Introduction of invasive species or alteration of habitats can also affect the distribution of native species.

Conclusion

Understanding the impact of environmental changes on species distribution is crucial for assessing the health and resilience of ecosystems. By evaluating the effects of temperature, water availability, atmospheric composition, and recognising the different types of environmental changes, we can better comprehend the intricate relationships between organisms and their habitats. Recognising our role in causing environmental changes allows us to take responsibility and work towards sustainable practices to mitigate the negative impacts on species and maintain the balance of ecosystems.