BI303 - Section 2 Lecture 6

What are the types of antagonistic biotic interactions?

Intraspecific competiton.
Interspecific competiton.
Predation.
Herbivory.
Parasitism.

What are the types of positive biotic interactions?

Commensalism.
Mutualism.
Symbiosis.

What is biodiversity?

Variability among living organisms from all sources.

Why is biodiversity important?

It supports ecosystem functions and services.

What are the reasons for conserving biodiversity?

Moral, aesthetic, insurance, ecosystem services

What are ecosystem services?

Benefits people obtain from ecosystems

What are the types of ecosystem services?

Provisioning, regulating, cultural, supporting

How does higher biodiversity affect ecosystems?

Increases productivity, stability, regulation

What is the relationship between biodiversity and ecosystem function?

Biodiversity underpins ecosystem functioning

What is resource/niche partitioning?

Species differ in resource requirements

What is facilitation in biotic interactions?

Encounters benefiting at least one participant

What is the portfolio effect in biodiversity?

Higher biodiversity acts as insurance against variability

What happens when a species become extinct?

All ecological functions related may be lost

What is the summary of biodiversity and ecosystem services?

Biodiversity means variability among living organisms.
Ecosystem services are benefits from ecosystems.
Diverse ecosystems are more productive and stable.
Ecosystem functioning underpins ecosystem services.

What is the Cedar Creek Biodiversity experiment?

A study on biodiversity's impact on ecosystem function

What did David Tilman demonstrate in his experiment?

Exploitation competition using freshwater diatoms

How does diversity affect invasion resistance?

Higher diversity leads to stronger competitive environments

What role do legumes and C4 grasses play in ecosystems?

They enhance soil carbon and nitrogen inputs

What is the impact of biodiversity on ecosystem productivity?

Increased biodiversity enhances overall productivity

What is the significance of niche differentiation?

It allows for more complete resource use

What is the relationship between biodiversity and ecosystem stability?

Higher biodiversity leads to greater stability

What is the role of biotic interactions in ecosystem functioning?

They form the basis of ecosystem functioning

How do ecosystem functions relate to ecosystem services?

Ecosystem functions underpin the provision of services

What is the significance of the Millenium Ecosystem Assessment Report?

It highlights the importance of ecosystem services

What is the impact of biodiversity on nutrient flows?

Higher diversity improves nutrient regulation

What is teh relationship between biodiversity and invasive species?

Higher biodiversity reduces invasive species success

What is the role of abiotic components in ecosystems?

They interact with biotic components to support to functions

How does biodiversity affect ecological resilience?

Higher biodiveristy promotes ecological resilience

What is the significance of biotic interactions in ecosystems?

They are crucial for maintaining ecosystem balance

What is the impact of biodiversity on ecosytem health?

Higher biodiversity enhances ecosystem health

What is the role of ecological processes in ecosystems?

They are essential for ecosystem functioning

How does biodiversity contribute to ecosystem services?

It enhances the capacity to provide services

What is the relationship between biodiversity and climate change?

Higher biodiversity can mitigate climate change effects

What is the significance of studying biodiverisity?

It helps understand ecosystem dynamics and health

How does biodiversity affect food security?

Higher biodiversity supports diverse food sources

What is the role of conservation in biodiversity?

It aims to protect and sustain biodiversity

How does biodiversity influence human wellbeing?

It provides essential resources and services

What is the importance of ecological research?

It informs consercation and management stratefies

How does biodiversity contribute to cultural values?

It enriches human experiences and traditions

What is the impact of habitat loss on biodiversity?

It leads to species extinction and loss of functions

How does pollution affect biodiversity?

It degrades habitats and reduces species diversity

What is the role of education in biodiversity conservation?

It raises awareness and promotes sustainable practices

How does climate change impact biodiversity?

It alters habitats and threatens species survival

What is the significance of international agreements on biodiversity?

They promote global cooperation for conservation

How does urbanisation affect biodiversity?

It leads to habitat fragementation and loss

What is the role of indigenous knowledge in biodiversity conservation?

It enahnces the ability to recover from disturbances

How does biodiversity contribute to ecosystem resilience?

It enhances the ability to recover from disturbances

What is the impact of invasive species on biodiversity?

They threaten native species and disrupt ecosystems

How does biodiversity affect ecosystem services?

Higher biodiversity enhances the provision of services

What is the significance of biodiversity hotspots?

They are areas with high species richness and endemism

How does biodiversity influence ecosystem availability?

Higher biodiversity contributes to greater stability

What is the role of genetic diversity in ecosystems?

It enhances resilience and adaptability of species

How does biodiversity contribute to climate regulation?

It helps maintain ecosystem functions that regulate climate