Mangrove Fauna Overview

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Questions and Answers

Which bird is known for its impressive hunting skills and is often found in shallow waters around mangroves?

  • Black-crowned Night Heron
  • Collared Kingfisher
  • Pacific Reef Heron (correct)
  • Philippine Long-tailed Macaque

The Black-crowned Night Heron is a diurnal bird.

False (B)

What is the local name of the Philippine Long-tailed Macaque?

Unggoy

The scientific name of the Blue Swimming Crab is __________.

<p>Portunus pelagicus</p> Signup and view all the answers

Match the following animals with their descriptions:

<p>Dugong = Gentle sea mammals that graze on mangrove vegetation Mollusks = Usually thrive in marine environments including mangroves Crustaceans = Include species like crabs, which are found in mangrove areas Mammals = Includes primates like the Philippine Long-tailed Macaque</p> Signup and view all the answers

Which mollusk is recognized as one of the largest and is often found in mangrove areas?

<p>Giant Clam (D)</p> Signup and view all the answers

The local name for the Mangrove Whelk is Taklobo.

<p>False (B)</p> Signup and view all the answers

Which crab species is highly valued for its meat and commonly found in mangroves?

<p>Mud Crab</p> Signup and view all the answers

What best defines 'fauna'?

<p>The animal life of a region (C)</p> Signup and view all the answers

Mangroves are only found in temperate regions and do not tolerate salt.

<p>False (B)</p> Signup and view all the answers

Name one animal species that is part of mangrove fauna.

<p>Mudskipper</p> Signup and view all the answers

Mangroves help in stabilizing coastlines and reducing __________.

<p>erosion</p> Signup and view all the answers

Match the fish species with their scientific names:

<p>Mangrove Red Snapper = Lutjanus argentimaculatus Tarpon = Megalops cyprinoides Mudskipper = Periophthalmus spp.</p> Signup and view all the answers

Which of the following is a characteristic of mangrove ecosystems?

<p>They consist of salt-tolerant trees and shrubs. (A)</p> Signup and view all the answers

Fish use mangrove habitats as breeding and nursery grounds.

<p>True (A)</p> Signup and view all the answers

Describe the unique ability of a Mudskipper.

<p>Mudskippers can move on land and breathe through their skin and mouth.</p> Signup and view all the answers

Which type of roots provides mechanical support for plants growing in soft and unstable substrates?

<p>Stilt roots (C)</p> Signup and view all the answers

Vivipary refers to the process where seeds develop and grow while still attached to the maternal plant.

<p>True (A)</p> Signup and view all the answers

What mechanism of pollination is used by the species Sonneratia?

<p>Bats or hawk moths</p> Signup and view all the answers

____________ are roots that emerge laterally from the underground root system and are used for breathing.

<p>Pneumatophores</p> Signup and view all the answers

Match the mangrove species with their respective pollination methods:

<p>Rhizophora = Wind Sonneratia = Bats or hawk moths Bruguiera = Birds and butterflies Acanthus = Bees</p> Signup and view all the answers

Which of the following is a human impact that threatens mangrove ecosystems?

<p>Deforestation (D)</p> Signup and view all the answers

Rising sea levels and increased storm intensity improve the health of mangrove ecosystems.

<p>False (B)</p> Signup and view all the answers

What advantage allows floating propagules to reach new environments?

<p>Horizontal floating initially</p> Signup and view all the answers

What role do microorganisms play in mangrove ecosystems?

<p>They are crucial for nutrient cycling. (A)</p> Signup and view all the answers

Mangrove trees contribute to the decomposition process by dropping leaves and branches.

<p>True (A)</p> Signup and view all the answers

Name two adaptations that mangrove vegetation has developed to survive in high salinity conditions.

<p>Waxy leaves and salt exclusion at leaves.</p> Signup and view all the answers

Mangrove leaves provide essential nutrients for _____ and invertebrates.

<p>algae</p> Signup and view all the answers

Which species are supported by the habitat created by mangroves?

<p>Various bird species (B)</p> Signup and view all the answers

Match the following concepts related to mangrove ecosystems:

<p>Decomposition = Process of breaking down organic matter Waxy Leaves = Adaptation to reduce water loss Salt Exclusion = Ability to manage salt content Nutrient Cycling = Movement of nutrients through the ecosystem</p> Signup and view all the answers

Crabs and small creatures only eat living plant material in mangrove ecosystems.

<p>False (B)</p> Signup and view all the answers

High salinity can harm plants by increasing the _____ concentration in their tissues.

<p>salt</p> Signup and view all the answers

Flashcards

Mangrove Fauna

Animal life found in mangrove ecosystems.

Mangroves

Coastal forests in tropical and subtropical regions, featuring salt-tolerant trees and shrubs.

Mangrove Red Snapper

A fish species inhabiting mangrove habitats, known for its red color.

Tarpon

A fish known for jumping, often found in mangrove areas.

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Mudskipper

A fish that can move on land and breathe through its skin and mouth, characteristic of mangrove areas.

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Fauna

Animal life in a specific area.

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Intertidal Zone

The area between high and low tide marks.

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Coastal Forest

A forest environment located near the coast.

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Pacific Reef Heron

A wading bird that hunts in shallow waters near mangroves.

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Collared Kingfisher

Known for its vibrant colors and impressive hunting skills.

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Black-crowned Night Heron

A nocturnal bird that feeds on fish and invertebrates in mangrove areas.

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Blue Swimming Crab

A crab species highly valued for its meat.

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Philippine Long-tailed Macaque

A primate that sometimes enters mangrove areas

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Mangrove Whelk

A large snail that lives in mangrove habitats.

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Giant Clam

One of the largest mollusks found in mangroves.

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Dugong

Gentle sea mammals that eat mangrove vegetation.

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Mangrove salinity adaptation

Mangrove plants have adaptations that allow them to survive in high-salt environments, preventing salt from damageing their internal processes.

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Salt exclusion at leaves

Mangrove leaves have developed a mechanism to prevent salt from entering their tissues, regulated by specialized leaf structures.

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Waxy leaves

The outer surface of mangrove leaves has a waxy coating, helping to minimize water loss and regulate salt levels.

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Mangrove food web

A complex network of organisms in the mangrove ecosystem, where leaves, organisms that decompose leaves, and fish rely on each other for sustenance

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Nutrient cycling

The process of nutrient exchange and decomposition within the mangrove ecosystem, crucial for mangrove health and productivity.

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Mangrove habitat

Mangrove ecosystems act as habitats for various organisms, a diverse environment supporting a variety of life.

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Seawater Impact on plants

Normal plants cannot survive when watered with seawater; the high salt concentration damages metabolic processes.

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Decomposition in Mangroves

Mangrove leaves and branches decompose, creating nutrients supporting the entire mangrove ecosystem, broken down by smaller organisms including insects, bacteria and fungi.

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Prop Roots

Roots that grow from the stem and provide support to the plant.

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Buttress Roots

Wide, flat roots that grow out from the trunk of trees, providing stability in soft substrates.

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Stilts Roots

Roots that grow from the tree trunk and are supported into the substrate.

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Pneumatophores

Roots that grow above the ground and help plants get air to breathe.

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Vivipary

Reproduction where seeds germinate and grow while still attached to the parent plant.

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Mangrove Deforestation

Clearing of mangrove forests for other uses, such as agriculture.

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Pollution in Mangroves

Contamination of mangrove water by industrial or agricultural pollutants.

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Climate Change Impact on Mangroves

Rising sea levels influencing the existence and growth of the mangroves.

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Study Notes

Mangrove Fauna

  • Mangroves protect coasts and nurture life.
  • Mangrove fauna refers to animal life in mangrove ecosystems.
  • Mangroves are tropical and subtropical coastal forests with salt-tolerant trees/shrubs.
  • These forests stabilize coastlines, reduce erosion, and provide habitats for marine/terrestrial species.
  • Mangrove fauna encompasses various species including fish, birds, crustaceans, mollusks, and mammals.

What is Mangrove Fauna?

  • Fauna is the animal life found in a particular region (similar to flora for plants).
  • Mangrove fauna specifically refers to animal species associated with mangrove ecosystems.
  • Fish use mangroves as breeding and nursery grounds.
  • Birds use mangroves for nesting and feeding.

Fauna of Mangrove Ecosystems: Fish

  • Mangrove Red Snapper ( Lutjanus argentimaculatus)
    • Popular fish species in mangrove habitats.
    • Striking red colour and size.
  • Tarpon ( Megalops cyprinoides)
    • Large fish known for jumping.
    • Often found in mangrove areas.
  • Mudskipper ( Periophthalmus spp.)
    • Unique fish, also moves on land.
    • Uses pectoral fins to "walk" and breathe through skin/mouth.

Fauna of Mangrove Ecosystems: Birds

  • Pacific Reef Heron ( Egretta sacra)
    • Wading bird that hunts in shallow waters.
  • Collared Kingfisher ( Todiramphus chloris)
    • Vibrant colors and impressive hunting skills.
    • Often seen near water.
  • Black-crowned Night Heron ( Nycticorax nycticorax)
    • Nocturnal bird feeding on small fish and invertebrates.
    • Common in mangrove areas.

Fauna of Mangrove Ecosystems: Crustaceans & Mollusks

  • Blue Swimming Crab ( Portunus pelagicus)
    • Known for its sweet meat, valuable for the economy.
  • Mangrove Whelk ( Terebralia palustris)
    • Large snail prevalent in mangrove areas.
  • Mud Crab ( Scylla serrata)
    • Large crab, valued for its meat.
  • Giant Clam ( Tridacna gigas)
    • One of the largest mollusks often found in mangroves.

Fauna of Mangrove Ecosystems: Mammals

  • Philippine Long-tailed Macaque ( Macaca fascicularis)
    • Primate that may venture into mangrove areas.
  • Dugong ( Dugong dugon)
    • Gentle sea mammal grazing on mangrove vegetation.

Mangrove Plant and Fauna Interactions

  • Mangrove root systems provide habitat for fish/invertebrates supporting birds.
  • Mangrove leaves are a nutrient source for algae/invertebrates creating a productive food web.
  • Microorganisms cycle nutrients (important in maintaining health and productivity).
  • Fallen leaves decompose, releasing nutrients for other organisms.
  • This creates a balanced, interconnected food web.

How do Mangrove Vegetation Adapt to Salt Water?

  • High salinity harms plants by drawing water from them.
  • Mangrove leaves have a waxy cuticle preventing water loss.
  • Salt exclusion at leaves helps control salt content in plants.

How do Mangrove Vegetation Adapt to High Sedimentation?

  • Buttress roots (thickened roots) stabilize mangroves in soft, unstable soil.
  • Stilt roots grow from the base of the tree into the substrate.
  • Pneumatophores (breathing roots) grow upward from the sediment and absorb air.

Mangrove Adaptation to Reproduction

  • Vivipary (some mangroves reproduce while still attached to plant).
  • Floating propagules (seedlings) dispersal to new environments.
  • Pollination method varies by species (wind, bats, birds, insects).

Human Impacts on Mangroves

  • Deforestation & Land Conversion (cleared for agriculture, urbanization, aquaculture leading to loss).
  • Pollution (industrial/agricultural pollutants affecting water quality and mangrove health).
  • Climate Change (sea levels rise, storm intensity affecting mangroves sustainability).
  • Overexploitation (overharvesting for timber, fuel, etc).

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