NOEL_SEC_INTRODUCTION-AND-SCOPE-OF-ECOLOGY.pdf

Ecology

1. PEOPLE AND
EARTH’S
ECOSYSTEM
SURIGAO EDUCATION CENTER
Km. 2, National Highway, 8400, Surigao City, Philippines

2. Noel Jan V. Sandrijo
GOLDEN RULE OF SIR
KNOW.WELL
“If I talk, you
listen. If you talk, I
listen.”

3. SURIGAO EDUCATION CENTER
Km. 2, National Highway, 8400, Surigao City, Philippines
PEOPLE AND
EARTH’S
ECOSYSTEM

4. overview
The significance of people and Earth's ecosystem is deeply
intertwined, reflecting a complex relationship that impacts both
human well-being and environmental health. Here’s an overview
of this critical connection:
Human dependency to ecosystem:1.
Resource provision
Biodiversity
Climate Regulation

5. overview
3. Impact of Human activities:
Environmental Degradation
Climate Change
Overexploitation
2. Ecosystem Services:
Regulation services
Supporting services
Cultural Services
Provisioning services

6. overview
5. Global and Local Perspective:
Global Cooperation
Local Actions
4. Conservation and Sustainable practices:
Conservation efforts
Sustainable developments
Climate actions

7. overview
The significance of people and Earth’s ecosystems lies in their
mutual dependence. Healthy ecosystems underpin human
prosperity, providing essential services that sustain life and
promote well-being. Conversely, human activities can severely
impact these systems, highlighting the need for concerted
efforts to protect and restore our natural environments.
Balancing development with conservation ensures that both
people and ecosystems thrive together, securing a sustainable
future for generations to come.

8. SURIGAO EDUCATION CENTER
Km. 2, National Highway, 8400, Surigao City, Philippines
introduction
and scope of
ecology

9. WHAT ISWHAT IS
ECOLOGY?ECOLOGY?

10. ecology
Ecology is the study of the relationships between living
organisms, including humans, and their physical
environment; it seeks to understand the vital connections
between plants and animals and the world around them.
Ecology also provides information about the benefits of
ecosystems and how we can use Earth’s resources in ways
that leave the environment healthy for future
generations.

12. ORGANISMS
POPULATION
COMMUNITY
ECOSYSTEM
BIOSPHERE
ecological level of
organization

13. the earth’s life
support system
(the four major
components)

14. the earth’s life support system
(the four major components)
These four subsystems are called
"spheres." Specifically, they are
the "lithosphere" (land),
"hydrosphere" (water), "biosphere"
(living things), and "atmosphere"
(air). Each of these four spheres
can be further divided into sub-
spheres.

16. three factors
sustain life
on earth

17. Energy from the Sun enables
photosynthesis in plants, which
provides the oxygen we breathe and
helps grow the food we eat. Solar
energy warms Earth, causes wind
and weather, and sustains plant and
animal life.
solar energy

19. A system where energy and matter
are transferred between living
organisms and non-living parts of
the environment. Animals and
plants consume nutrients found in
the soil, and these nutrients are
then released back into the
environment via death and
decomposition.
nutrients cycle

21. Gravity keeps everything on Earth
from floating away! It plays a
crucial role in the development of
life. Gravity is the force that pulls
objects to Earth. Without gravity,
we would have no atmosphere.
gravity

23. what happens
to solar
energy
reaching the
earth?

24. The infrared, visible, and UV waves
that reach Earth take part in a
process of warming the planet and
making life possible—the so-called
“greenhouse effect.”
solar energy

25. About 30 percent of the solar
energy that reaches Earth is
reflected back into space. The rest
is absorbed into Earth’s
atmosphere.
solar energy

26. Greenhouse gases trap the heat
that reflects back up into the
atmosphere. In this way, they act
like the glass walls of a
greenhouse. This greenhouse effect
keeps Earth warm enough to sustain
life.
solar energy

28. major
components
of an
ecosystem

29. It consists of two major
components, biotic or living
components and nonbiotic or
nonliving components. Biotic
components include plants,
animals, decomposers. Nonliving
components include air, water, land.