Biodiversity and the Healthy Society Flashcards
It refers to the variety of life on Earth
It includes everything from tiny organisms like bacteria and genes to large ecosystems like
forests, oceans, and coral reefs.
Biodiversity
Biodiversity means ______ ______.
biological diversity
“bios” means ____
”diversitas” means ______
life; variety
The differences in DNA within individuals of the same species. It is the basis for adaptation and evolution, allowing species to survive environmental changes, resist diseases, and improve reproduction.
Genetic Biodiversity
Measures the number of different species in a particular area or across the world. A higher species diversity means a more resilient and stable ecosystem.
Species Biodiversity
The variety of ecosystems, including different habitats, biological communities, and ecological processes.
Ecosystem Biodiversity
Types of Biodiversity
Genetic Biodiversity
Species Biodiversity
Ecosystem Biodiversity
Importance of Biodiversity in Ecosystem
Pollination
Seed Dispersal
Climate Regulation
Water Purification
Nutrient Cycling
Natural Pest Control
Ecosystem Stability and Resilience
Food Chain
It is the death of all members of a species of plants, animals, or other organisms.
Recent studies estimate about eight million species on Earth, of which at least 15,000 are threatened with —.
Extinction
Extinct Species
Passenger Pigeon
Dodo Bird
Steller’s Sea Crow
Tasmanian Tiger
Baiji White Dolphin
Golden Toad
Major Causes of Extinction
Overexploitation of natural resources
Habitat destruction
Pollution
Global climate change
The total number of genetic characteristics within a species, enabling populations to adapt to changing environments and resist diseases.
Genetic Diversity
A decline in genetic diversity, known as _______ _______, diminishes a species’ ability to survive environmental changes, leading to increased vulnerability and potential extinction.
Genetic Erosion
Causes of Genetic Diversity Loss
Habitat Fragmentation
Population Declines
Inbreeding
Selective Breeding and Monocultures
Ecosystems rely on the interactions of countless species to perform natural processes that sustain life on Earth.
Ecosystem Functions
The benefits humans derive from them are known as
Ecosystem Services
Causes of Alterations in Ecosystem Functioning and Services under HUMAN ACTIVITIES
Deforestation
Pollution
Climate Change
Overfishing and Hunting
Urbanization
Causes of Alterations in Ecosystem Functioning and Services under NATURAL CAUSES
Natural Disasters
Wildfires
Disease Outbreaks
It is an ecological area where specific species of plants, animals, and other organisms live and interact with one another and their environment.
Habitat
It occurs when natural environments, such as forests, wetlands, and grasslands, are destroyed or significantly altered.
Habitat Loss
Habitat loss is called _______ __________ when humans destroy the natural shelters of the wildlife.
Habitat Destruction
Causes of Habitat Loss
Deforestation
Agriculture and Monoculture Farming
Urbanisation and Urban Sprawl
Mining and Industrial Activities
Pollution and Industrial Waste
Climate Change and Invasive Species
Effects of Habitat Loss on Biodiversity
Species Extinction
Loss of Keystone Species
Ecosystem Collapse
Disruption of Food Chains
Reduced Genetic Diversity
Loss of Habitat Connectivity
This refers to changes in the natural structure of species and their interactions within an ecosystem.
Alteration in Ecosystem Compostion