Biology Classification and Biodiversity Flashcards

A collection of flashcards covering concepts related to biological classification and biodiversity.

What is the definition of an ecosystem?

A community of different species interacting with each other and their environment in a specific habitat.

What are the three concepts of species described in biology?

Biological species, morphological species, and ecological species.

What is the binomial system devised by Carl Linnaeus?

A system of naming organisms using two Latin names: the genus name (capitalized) and the species name (lowercase), both italicized.

What does biodiversity refer to?

The degree of variation of life forms within an ecosystem.

What are the three components that contribute to biodiversity?

Genetic diversity, species diversity, and ecosystem diversity.

What method is used to estimate population size in animal species?

Mark-release-recapture method.

What is genetic diversity?

The total number of genetic characteristics in the genetic makeup of a species.

What can affect species diversity in an ecosystem?

The number of different species present and their relative abundance.

What is the Braun-Blanquet cover scale used for?

To estimate the abundance of species in a particular area based on percentage cover.

What is conservation biology?

The study of the preservation, protection, and enhancement of biodiversity.

Why is biodiversity considered important for survival?

It provides ecosystem services such as food production, air quality, and climate regulation.

What impact do alien species have on native species?

Alien species can outcompete native species for resources, leading to declines or extinction of native populations.

What are some advantages of captive breeding programs for endangered species?

They help prevent extinction, monitor health, and can involve assisted reproductive technologies.

What is the role of Non-Governmental Organizations (NGOs) in conservation?

They promote awareness, fund conservation projects, and advocate for sustainable practices.

What is the significance of the IUCN Red List?

It categorizes the conservation status of species and helps prioritize conservation efforts.

How is biodiversity assessed using quadrats?

By measuring species frequency and abundance within marked areas.

What is the Lincoln-Petersen index used for?

To estimate population size based on marked individuals in a sample.