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FORECASTING THE EFFECTS OF ELEVATED NUTRIENT LEVELS ON VULNERABILITY TO INVASION TRAITS VERSUS OBSERVATIONS Wout Van Echelpoel , Peter L. M. Goethals 02/10/2019 DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC ECOLOGY RESEARCH GROUP AQUATIC ECOLOGY

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Page 1: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

FORECASTING THE EFFECTS OF

ELEVATED NUTRIENT LEVELS ON

VULNERABILITY TO INVASION

TRAITS VERSUS OBSERVATIONS

Wout Van Echelpoel, Peter L. M. Goethals

02/10/2019

DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC ECOLOGY

RESEARCH GROUP AQUATIC ECOLOGY

Page 2: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

2

NP

K

Page 3: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

3

Page 4: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

4

Page 5: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

5

Potential to invade?

Vulnerability to invasion?

Strength of existing population?

Lemna minuta

Lemna minor

Page 6: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

1. POTENTIAL TO INVADE

6

16:8 20 °C

Nutrients

C1 C2 C3 C4 C5

Page 7: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

1. POTENTIAL TO INVADE – GROWTH

7

Nutrients

C1 C2 C3 C4 C5

Page 8: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

2. INVASION VULNERABILITY

8

DATASETECOSYSTEM

MODEL

TRAINING

Page 9: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

2. INVASION VULNERABILITY – PRESENCE

9

Page 10: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

2. INVASION VULNERABILITY – PRESENCE

10

Page 11: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

CONCLUSION

Traits do not suffice to predict

invasive behaviour

11

Observations provide more

reliable information

But can only be done if

invader is already present…

Page 12: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

12

Thank you for your attention!

¡Gracias por su atención!

Page 13: DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC …...RESEARCH GROUP AQUATIC ECOLOGY. 2 N P K. 3. 4. 5 Potential to invade? Vulnerability to invasion? Strength of existing population? Lemna

Wout Van EchelpoelAcademic Assistant – PhD candidate

DEPARTMENT OF ANIMAL SCIENCES AND AQUATIC ECOLOGY

E [email protected]

T +32 9 264 38 94

M +32 486 51 98 48

www.ugent.be

Ghent University

@ugent

Ghent University


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