IMI
This presentation is the property of its rightful owner.
Sponsored Links
1 / 17

IMI PowerPoint PPT Presentation


  • 100 Views
  • Uploaded on
  • Presentation posted in: General

IMI. Invasive mammal impacts on biodiversity. History. ►. ►. ►. IMI research: 4 ‘strands’. Wendy Ruscoe. 1. Forests. 2. Drylands. Andrea Byrom. Pen Holland. Grant Norbury. Mandy Barron. Graeme Elliott. 3. Global change. 4. Theory. Dryland food web. Top-level predators.

Download Presentation

IMI

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Imi

IMI

Invasive mammal impacts on biodiversity


History

History


Imi research 4 strands

IMI research: 4 ‘strands’

Wendy Ruscoe

1. Forests

2. Drylands

Andrea Byrom

Pen Holland

Grant Norbury

Mandy Barron

Graeme Elliott

3. Global change

4. Theory


Imi

Dryland

food web

Top-level predators

Ferret Cat Stoat

Herbivores

Mesopredators

Insectivore

Rabbit

Rat

Hedgehog

Impacts

Possum

Hare

Mouse

Native lizards

Native invertebrates

Pasture/Seed/Fruit

Climate


Imi

Using models to drive research ...

36

38

40

37

Cats

Ferrets

Stoats &

Weasels

41

39

42

34

20

33

35

26

25

27

19

15

14

30

24

Rabbits

Possums

Mice

Lizards

Hedgehog

RHD?

31

28

22

21

18

32

29

23

13

16

17

8

Pasture seed

Shrub seed

Tussock seed

Invertebrates

11

4

6

9

5

7

10

12

Dan

Roger

Andrea

Grant

James

3

Pasture

Shrub

Tussock

2

1

Temperature

Rainfall

Sunlight hours?

Evapotranspiration?

Sheep


Imi

Using models to predict...

36

38

40

37

Cats

Ferrets

Stoats &

Weasels

41

39

42

34

20

33

35

26

25

27

19

15

14

30

24

Rabbits

Possums

Mice

Lizards

Hedgehog

RHD?

31

28

22

21

18

32

29

23

13

16

17

8

Pasture seed

Shrub seed

Tussock seed

Invertebrates

11

4

6

9

5

7

10

12

Dan

Roger

Andrea

Grant

James

3

Pasture

Shrub

Tussock

2

1

Temperature

Rainfall

Sunlight hours?

Evapotranspiration?

Sheep


Imi

Using models to predict...

36

38

40

37

Cats

Ferrets

Stoats &

Weasels

41

39

42

34

20

33

35

26

25

27

19

15

14

30

24

Rabbits

Possums

Mice

Lizards

Hedgehog

RHD?

31

28

22

21

18

32

29

23

13

16

17

8

Pasture seed

Shrub seed

Tussock seed

Invertebrates

11

4

6

9

5

7

10

12

Dan

Roger

Andrea

Grant

James

3

Pasture

Shrub

Tussock

2

1

Temperature

Rainfall

Sunlight hours?

Evapotranspiration?

Sheep


Site based pest control in a landscape

Area with pest control

Site-based pest control in a landscape

Short-term removal of nearby pest animals

Area with effective pest reduction

Re-invasion by pests


Site based conservation in a landscape

Area with pest control

Area with biodiversity benefits

Site-based conservation in a landscape

?

?


Site based conservation in a landscape1

Area with pest control

Dispersal, re-colonisation & gene flow

Area with biodiversity benefits

Site-based conservation in a landscape

?

?


From single sites to future networks metapopulation models

From single sites to future networks: ‘metapopulation models’

  • ‘Classic’ (Levin)

  • Mainland – island

  • Patch population

  • Non-equilibrium metapopulation

  • combination of a - d

Harrison & Taylor (1997)


Creating a conservation network

Site-based pest management

Site-based pest management

Creating a conservation network

Survival rate of threatened species

core

edge

edge

core

edge


Creating a conservation network1

Site-based pest management

Site-based pest management

Network management

Connect sites with some pest control timed to match optimal conditions

Creating a conservation network

Survival rate of threatened species

core

edge

edge

core

edge


Research summary

Research summary

  • Focus on the impacts of invasive mammals

W. GreenOptimising biodiversity protection in

Wellington’s Forest Parks


Research summary1

Research summary

  • Focus on the impacts of invasive mammals

  • Ecosystems: forests, drylands, braided rivers, alpine areas


Research summary2

Research summary

  • Focus on the impacts of invasive mammals

  • Ecosystems: forests, drylands, braided rivers, alpine areas

  • Research to link sites across landscapes


Making a difference

Making a difference …

  • Close collaboration with agencies (DOC, regional councils, private groups) via ‘management experiments’

  • Emphasis on publications

  • Students: next generation scientists

  • Rebecca Lawrence: rat behaviour & risk of predation

  • Hannah Windley: plant defence & possum browse

  • Tom Etherington: landscape connectivity & pest risk

  • Maggie Triska: restoration ecology

  • Liz Rayner: rabbit diet

  • NEW STUDENT: braided river ecosystems

  • (?)Eru Nathan: pest animal behaviour

  • New technology for providing information


  • Login