Topic 2.5 Flashcards
Can you provide examples of named and located ecosystems?
Examples of named and located ecosystems include the Amazon Rainforest in South America, the Great Barrier Reef in Australia, and the Serengeti Plains in Africa
Why is it important to have sound knowledge of named and located ecosystems?
Having sound knowledge of named and located ecosystems allows for a better understanding of their unique characteristics, biodiversity, and the environmental issues they face.
What is the role of keys in organism identification?
Keys provide a systematic set of choices based on observable characteristics to help identify organisms by narrowing down the options at each step.
How can technology aid in organism identification?
Technology, such as DNA sequencing and imaging techniques, allows for more accurate and detailed identification of organisms by analyzing genetic information and visual characteristics.
What are simple keys?
Simple keys are identification tools that use a series of contrasting characteristics to guide the user towards the correct identification of an organism.
Can you provide an example of constructing a simple key?
Construct a simple key to identify four types of birds based on their beak shapes and feeding habits.
What is the Lincoln Index?
The Lincoln Index is a method used to estimate population size by marking and recapturing individuals, allowing for population size estimation based on the ratio of marked to unmarked individuals.
Formula:
- Population size = (Number of marked individuals in the first sample) × (Number of individuals in the second sample) ÷ (Number of recaptured marked individuals in the second sample)
or
- N = (n1 × n2) / m2
N = Estimated population size
n1 = Number of individuals marked in the first sample
n2 = Number of individuals in the second sample
m2 = Number of recaptured marked individuals in the second sample
