Habitat Ecology - Freshwater Ecosystems

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary factor influencing temperature variation in freshwater habitats in the temperate zone?

Seasonal changes (correct)
Water depth
Salinity levels
Soil composition

Marine flora growth is influenced by factors such as light availability and nutrient concentration.

True (A)

What are the two main divisions of freshwater habitats based on stratification?

Horizontal and vertical stratification

The _____ layer of soil is rich in organic materials and nutrients.

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

Match the following soil types with their characteristics:

<p>Clay = High water retention, compact structure Sand = Low water retention, coarse texture Silt = Moderate water retention, fine texture Loam = Balanced mixture of sand, silt, and clay</p> Signup and view all the answers

Flashcards

Freshwater Habitat Stratification

Freshwater habitats are divided horizontally and vertically. Horizontal divisions might be based on flow rate (e.g., rivers, streams, lakes). Vertical divisions include the epilimnion, thermocline, and hypolimnion, affected by temperature.

Marine Habitat Stratification

Marine habitats also have horizontal (e.g., coastal zones, open ocean) and vertical (e.g., intertidal zones, benthic zones) structure. Vertical variations are influenced by sunlight and depth.

Soil Profile

A vertical section of soil showing its different layers (horizons), each with distinct characteristics, formed by weathering and biological activities.

Soil Components

Soils are comprised of mineral matter, organic matter, water, and air. These components interact to influence the soil's properties.

Signup and view all the flashcards

Soil Erosion and Conservation

Soil erosion is the wearing away of topsoil by natural forces (wind, water). Soil conservation is the practice of protecting soil from degradation by using methods to manage erosion and maintain healthy soil structure.

Signup and view all the flashcards

Study Notes

Freshwater Habitat Temperature Variation

Seasonal changes in air temperature are the primary drivers of temperature variation in freshwater habitats in the temperate zone.

Marine Flora Growth

Light availability and nutrient concentration are crucial factors influencing the growth of marine flora.

Freshwater Habitat Stratification

Freshwater habitats can be broadly classified into two main divisions based on stratification:
- Lentic - Still water habitats like ponds and lakes
- Lotic - Flowing water habitats like rivers and streams

Soil Layers

The O horizon (also known as the organic layer) is rich in decomposed organic matter and nutrients. This layer is crucial for supporting plant life.

Soil Types and Characteristics

Sandy soils are characterized by large particle size, good drainage, and poor water retention.
Clayey soils have small particle size, poor drainage, and high water retention.
Loamy soils are a mixture of sand, silt, and clay, offering a balance of drainage and water retention.