Question: Use table 1 and the sources below to develop an interaction network (b
ID: 273497 • Letter: Q
Question
Question:
Use table 1 and the sources below to develop an interaction network (brain map) to inform how the proposed eradications may affect other species and ecosystem functions whilst indicating if each interaction is positive or negative, and add a one-word description of the process involved, e.g. “predation”.
Read:
https://www.theguardian.com/world/2016/jul/25/no-more-rats-new-zealand-to-exterminate-all-introduced-predators?CMP=twt_gu
https://www.landcareresearch.co.nz/science/plants-animals-fungi/animals/invertebrates/invasive-invertebrates/wasps/impact/biodiversity
https://www.doc.govt.nz/nature/pests-and-threats/animal-pests/
https://www.doc.govt.nz/nature/native-plants/
Table 1. List of species to include in the New Zealand interaction network.
Native?
Notes
PLANTS
New Zealand flax
(Phormium tenax) also called ‘harakeke’
Yes
Tussock-forming plant. Common in coastal dune and cliff ecosystems.
black beech
(Fuscospora solandri)
Yes
Common tree in beech forests.
INVERTEBRATES
European wasp (Vespula germanica)
No
Aggressive wasp.
wasp mite
No
Released as bio-control for European wasps
beech scale insect
Yes
Scale insect that lives on multiple species of beech tree.
Orb web spider (Eriophora pustulosa)
Yes
Web-forming spider in beech forests.
MAMMALS
Australian brushtail possum
No
Omnivore.
stoat
No
Carnivore.
black rat
No
Omnivore.
cat
No
Carnivore.
BIRDS
kiwi
Yes
There are five species of kiwi – all are flightless. Feed on a variety of ground dwelling invertebrates.
tui
Yes
Large species of honeyeater.
REPTILES
Duvaucel's gecko (Hoplodactylus duvaucelii)
Yes
Large insectivorous and nectarivorous gecko.
Native?
Notes
PLANTS
New Zealand flax
(Phormium tenax) also called ‘harakeke’
Yes
Tussock-forming plant. Common in coastal dune and cliff ecosystems.
black beech
(Fuscospora solandri)
Yes
Common tree in beech forests.
INVERTEBRATES
European wasp (Vespula germanica)
No
Aggressive wasp.
wasp mite
No
Released as bio-control for European wasps
beech scale insect
Yes
Scale insect that lives on multiple species of beech tree.
Orb web spider (Eriophora pustulosa)
Yes
Web-forming spider in beech forests.
MAMMALS
Australian brushtail possum
No
Omnivore.
stoat
No
Carnivore.
black rat
No
Omnivore.
cat
No
Carnivore.
BIRDS
kiwi
Yes
There are five species of kiwi – all are flightless. Feed on a variety of ground dwelling invertebrates.
tui
Yes
Large species of honeyeater.
REPTILES
Duvaucel's gecko (Hoplodactylus duvaucelii)
Yes
Large insectivorous and nectarivorous gecko.
Explanation / Answer
ans- the native species will be affected by the foreign species like rats, stouts as they will compete with the native species for the food and habitat. as we know that the resources are limited but the number of the individual who are in competition for these resources will tend to grow at rate which will ultimately cross the limit and then it will affect the native species survival. the other fact which support these eredacation is that the foreign species are mostly cornivorous or omnivorous so they will eat the native species as their food which will also have negative effect on the native species population size.
there are negative interaction between the invasive and native species and environmental function.
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