BIOL1030 Lecture Notes - Lecture 7: Biological Engineering, Animal, Ecosystem Services
Lecture 7 notes- The Biodiversity Crisis
Utilitarian values of individual species= economic contribution or monetary value of individual
species or groups
E.g. Great Barrier Reef
SANDCASTLE WORM- water-borne underwater adhesives (bioengineering)
Animals (metazoa) ingest food then use enzymes to digest it in their body but outside of their cells
Non-animals digest their food outside their body then absorb it e.g. plants/protists/fungi
INVERTEBRATES- 95% OF ANIMAL SPECIES ARE INVERTEBRATES
Almost half of the phyla are marine- most speciose are arthropods
ARTHROPODS:
- Exoskeleton
- Segmented body
- Jointed appendages
INSECTA
- Chitinous skeleton
- Three part body (head, thorax, abdomen)
- Three pairs jointed legs
- Compound eyes
- One pair antennae
Insects all undergo metamorphosis
Incomplete metamorphosis= gradual change via a series of moults
ECOSYSTEM SERVICES- suite of benefits that ecosystems provide to humanity including:
- Provisioning
- Regulating
ECOSYSTEM FUNCTIONS- ecological processes in the environment that control fluxes of:
- Energy
- Nutrients
- Organic matter
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Document Summary
Utilitarian values of individual species= economic contribution or monetary value of individual species or groups. Animals (metazoa) ingest food then use enzymes to digest it in their body but outside of their cells. Non-animals digest their food outside their body then absorb it e. g. plants/protists/fungi. Almost half of the phyla are marine- most speciose are arthropods. Incomplete metamorphosis= gradual change via a series of moults. Ecosystem services- suite of benefits that ecosystems provide to humanity including: Ecosystem functions- ecological processes in the environment that control fluxes of: Ecosystem services- air quality regulation (plants remove pollutants from the air) Phytoremediation- using plants to clean up air, soil, water. Micro-organisms also remove pollutants e. g. microbial immobilisation of sulphur. Human activities are responsible for 1/3 sulphur emissions and 90% of sulphur dioxide emissions (acid rain) Variety of microscopic organisms from all three domains of life. Bacteria- prokaryotic cells, cell wall with specific molecular structure (peptidoglycan)- antibiotics target peptidoglycan.
