Unit 2- Feild Work Techniques Flashcards
Define a Hazard
A hazard is something that can cause harm
Define a risk
A rush is the likely hood of being harmed from exposure to a hazard
List 4 key hazards associated with field work
Adverse weather
Difficult terrain
Isolation
Contact with harmful organisms
Why do you carry out risk assessments
Risk assessments involve identifying control measures to minimise risks
2 considerations needed when sampling species
Is the method appropriate for that species
How can the impact be minimised
4 different sampling methods and what types of organisms they are used for
Quad-rats ~ slow moving or sessile
Point count ~ birds
Capture ~mobile species
Camera trapping ~elusive species
What is an elusive species and which 2 sampling methods are used
Elusive species are those who are difficult to sample through normal observation
Direct and indirect ~ scat sampling or camera trapping
Name 3 ways we can identify organisms in a sample
DNA analysis, Biological keys, classification guides
Definition of taxonomy
The scientific study of naming describing and classifying organisms
Define classification
The process by which scientists group living organisms
What does a polygenic tree show
Shows evolutionary history and relatedness
What’s the order of the hierarchy of biological classification
Life -> Domain-> Kingdom-> Phylum-> Class-> Order-> Family-> Genus-> Species
What’s the difference between the convergent and divergent evolution
Divergent- development of the different lifeforms from a common origin
Convergent- separate evolution of similar phenotypic adaptations
List 5 model organisms
Bacterium Flowering plant Nematode Arthropod Chordates
Why do we study model organisms
Easily studied and kept
Useful for more harmful examples