Unit-10-Case-Studies
Page 1: Case Studies
Introduction
Focus on Unit 10 discussing cave systems.
Page 2: Contents
Overview of Topics
Philippine Cave Systems
Characteristics of Karst Landscape
Benefits from Philippine Wetlands
Tourism and Climate Change
Philippine Wetlands
Religious and Historical Interactions with Caves
Summary
Page 3: Caves Defined
Cave Definition
A cave or cavern is a natural void in the ground, large enough for human entry.
Formed through weathering of rock, often extends deep underground.
Page 4: Cave Systems
Importance of Caves
Major component of karst landscapes and popular tourist attractions.
Decorated with stalactites, stalagmites, and speleothems.
Speleology
The study of caves and cave systems.
Classification
Based on parent bedrock, groundwater proximity, passage morphology, and speleogenetic history.
Page 5: Types of Cave Systems
Categories of Caves
Solution Cave, Sea Cave, Lava Tubes, Glacier Cave, Eolian Cave, Talus Cave.
Purpose of Caves
Used for scientific research and recreation.
Pros and Cons
Pros: Protection from elements, insulation.
Cons: Lack of light, poor ventilation, high risk.
Page 6: Legal Definition of Caves
Republic Act 9072 of 2001
Defines caves and includes natural pits, sinkholes, and resources within caves.
Page 7: Philippine Cave Systems
Cave Statistics
Over 1,500 identified caves in the Philippines, many yet unexplored.
Page 8: Cave Ecosystems
Biodiversity of Caves
Habitats for diverse life forms from microorganisms to vertebrates.
Exist in aquatic and terrestrial environments across various microhabitats.
Page 9: Puerto Princesa Subterranean National Park
Notable World Heritage cave with unique speleothems and a navigable underground river.
Page 10: Limestone Caves
Composition
Soft sedimentary rock forming in warm shallow seas.
Transformation
Can turn into marble under high pressure and heat.
Page 11: Formation of Limestone Caves
Process Overview
Movement lifts sedimentary rock to create hills.
Plant growth causes rock cracking.
Rainwater dissolves limestone, forming caves.
Continuous water flow increases cave size.
Page 12: Interesting Features
Stalactites and Stalagmites
Stalactites: Icicle-like deposits from dripping water on ceilings.
Stalagmites: Deposits formed on the floor of caves.
Page 13: Physical Features of Limestone Caves
Key Characteristics
Passages: Follow joints and fractures in rock.
Hydrology: Contains more groundwater than other aquifers.
Speleothems: Secondary mineral deposits formed by groundwater.
Microclimate: Caves maintain stable temperatures year-round.
Page 14: Characteristics of Karst Landscapes
Features Overview
Surface and subterranean processes integrated, providing historical records of evolution.
Page 15: Karst Ecosystem Fragility
Environmental Extremes
Dry conditions on the surface, dependence on water quality for subterranean ecosystems.
Page 16: Interactions with Caves
Religion and History
Caves linked with religious beliefs and historical practices in the Philippines.
Page 17: Cultural Significance
Myths and Practices
Caves as homes for deities, locations for rituals, and archaeological sites.
Page 18: Historical Examples
Biak-na Bato: Revolutionary hideout; Manunggul Cave: Insights into ancient beliefs.
Page 19: Archaeological Importance
Site Description
Ancient site indicative of human practices, south coast of Palawan.
Page 20: Tourism Overview
Tourism Definition
Activities involving travel outside usual environments.
Page 21: Forms of Tourism
Classification
Inbound, outbound, domestic tourism.
Page 22: Climate Change Overview
Definition
Changes in climate due to human activity affecting global atmosphere.
Page 23: Tourism Sector Impact
Economic Contributions
Significant contributor to global economies.
Page 24: Climate Change and Tourism
Industry Effects
Carbon emissions linked to tourism, with targets for reduction.
Page 25: Nature-Based Tourism
Trending Types
Adventure Tourism
Eco-Tourism
Wildlife Tourism
Nature Retreats
Page 26: Adventure Tourism
Characteristics
Involves risk and requires skills and physical exertion.
Page 27: Wildlife and Extractive Tourism
Definitions
Observation of wildlife; resource extraction from tourism.
Page 28: Nature Retreats
Purpose
Focus on personal wellness through connection with nature.
Page 29: Wetlands Overview
Definition
Areas primarily controlled by water; vital for ecosystems in the Philippines.
Page 30: Wetlands Classification
Types
Lakes
Swamps
Marshes
Estuaries
Page 31: Ramsar Sites in the Philippines
Notable Locations
Including Olango Island and Tubbataha Reef.
Page 32: Other Wetlands
Additional Locations
Various notable wetlands across the Philippines.
Page 33: Benefits from Wetlands
Ecological Contributions
Vital stable food source; supports local economies.
Page 34: Food Sources
Key Resources
Rice from human-made wetlands.
Fish from inland and coastal wetlands.
Water from freshwater wetlands.
Page 38: Types of Wetlands
Detailed Overview
Includes swamps, marshes, mangrove forests, etc.
Page 47: Wetland Ecosystem Complexity
Ecosystem Functions
Provisioning, regulating, cultural, and supporting functions influenced by cultural attitudes.
Page 48: Summary
Importance of Philippine Caves
Crucial ecosystems for biodiversity and cultural history, but facing threats from human activity and climate change.