MANAGE ME NT OF COL ONIAL WAT E RBIRDS AT T OMMY T - - PowerPoint PPT Presentation

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MANAGE ME NT OF COL ONIAL WAT E RBIRDS AT T OMMY T - - PowerPoint PPT Presentation

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MANAGE ME NT OF COL ONIAL WAT E RBIRDS AT T OMMY T HOMPSON PARK CORMORANT ADVISORY GROUP ME E T ING #1 Thursday, January 24 4:00 p.m. to 8:00 p.m. Mennonite New Life Centre, 1774 Queen Street East OBJECTIVES Investigate

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SLIDE 1

Thursday, January 24 4:00 p.m. to 8:00 p.m. Mennonite New Life Centre, 1774 Queen Street East

MANAGE ME NT OF COL ONIAL WAT E RBIRDS AT T OMMY T HOMPSON PARK

CORMORANT ADVISORY GROUP ME E T ING #1

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SLIDE 2
  • Investigate need for management of cormorant

populations at TTP

  • Evaluate management options (including “do nothing”),

based on the best available scientific information

  • If required, identify a proposed management approach
  • Involve key stakeholders through an advisory group
  • Consult with other stakeholders and the public using an
  • pen and inclusive process
  • Ensure provision of accurate and balanced information to

the public, media and policy makers

OBJECTIVES

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SLIDE 3

MANDATE

  • Provide input and advice
  • Ensure that all perspectives are considered
  • Provide linkages with other stakeholders

ACTIVITIES

  • Identify values and interests associated with TTP
  • Discuss existing conditions, concerns and need for

management

  • Discuss strategies to address concerns
  • Help to evaluate any management options
  • Help to plan and attend the public meeting
  • Advise TRCA on recommended management plan, if

appropriate

  • If management actions are recommended, provide advice on

implementation

ADVISORY GROUP

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SLIDE 4

ADVISORY GROUP MEMBERSHIP

TRCA Restoration Services Federal/Provincial Canadian Wildlife Service Transport Canada Toronto Port Authority Ontario Ministry of Natural Resources City of Toronto Parks, Forestry and Recreation Public Health Academia York University University of Toronto University of Minnesota Interest Groups Friends of the Spit Toronto Ornithological Club Ontario Nature Aquatic Park Sailing Club Outer Harbour Sailing Federation Local Enhancement and Appreciation of Forests (LEAF) Toronto Island Residents Cormorant Defenders International: Animal Alliance of Canada Zoocheck Canada Inc. Canadians for Snow Geese

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SLIDE 5

PROPOSED TIMELINE

Advisory Group Meeting #1 Thursday January 24

  • Values and interests
  • Conditions and concerns
  • Need for management
  • Strategies to address concerns

Advisory Group Meeting #2 Tuesday February 19

  • Evaluate management options
  • Propose alternative approaches

Public Meeting Tuesday April 1 or Thursday April 3

  • Present existing conditions, concerns

and alternative management approaches

  • Provide feedback on alternative

approaches

  • Develop consensus on preferred

approach if possible Advisory Group Meeting #3 Tuesday April 15 or Thursday April 17

  • Review public response
  • Formulate management plan, if any

TRCA Watershed Management Board Tbd

  • Present report for Authority action

Advisory Group Meeting #4 Tbd

  • Review implementation workplan, if any
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SLIDE 6

Tommy Thompson Park

Public Urban Wilderness

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SLIDE 7
  • Construction of the Leslie Street Spit began in 1959
  • Dispose of rubble and fill from the construction

industry

  • Expand port related facilities
  • Create opportunities for dredged material disposal
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SLIDE 8

Master Plan (1989) and Addendum (1992)

The goals of the Master Plan are to:

  • To conserve and manage the natural resources

and environmentally significant areas;

  • To provide a unique, water-oriented open space

which will assist in meeting regional needs;

  • To develop public awareness regarding the

significance of the Lake Ontario waterfront and Tommy Thompson Park.

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SLIDE 9

Tom

  • mmy T

y Thom homps pson P Park ark

Toron

  • nto
  • and

d Regi gion

  • n CA

Ont ntario Mini nistry of

  • f

Natur ural al Resour

  • urces

es

471 ha MNR / TPA 224 ha Tommy Thompson Park 247 ha

City of Toront nto

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SLIDE 10

Tommy Thompson Park 2007 Interim Management

  • Open to the public weekends and holidays
  • Shuttle Van Service from May to October
  • Volunteer Naturalist from May to October
  • Aquatic Park Sailing Club
  • Habitat and wildlife management
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SLIDE 11

Appr

  • ximate ly 250,000 pe ople visit T

T P annually

Rollers 9% Cyclists

45% Walkers 36%

Joggers

10%

Interim Management Program

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SLIDE 12

ESA

Local and Regional Context

E SA 130 E SA 120

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SLIDE 13
  • Toronto’s only Important Bird Area –globally

significant

  • 7 Species of Colonial Nesting Waterbirds

The largest colony of Double-crested Cormorants in the Great Lakes Largest colony of Black-crowned Night- Herons in Canada!

  • Concentration area for migratory bird

species.

  • Significant overwintering area for waterfowl.
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SLIDE 14

Double - c r e ste d Cor mor ant Caspian T e r n Ring- bille d Gulls Common T e r n Blac k- c r

  • wne d

Night- He r

  • n

7,241 56,000 876 He r r ing Gulls 30 fe w 376

Ne sting Pa irs of Colonia l Wa te rbirds a t T T P 2007

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SLIDE 15

Wildlife

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SLIDE 16

L ake Ontar io and T

  • mmy T

hompson Par k Cor mor ant c olonie s

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SLIDE 17

Toronto

ONTARIO

Hamilton Ontario

N

L ake Ontar io Cor mor ant c olonie s, 2007

L ake Ontar io

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SLIDE 18

L ake Ontar io c or mor ant ne sts, 1979- 2007.

5 10 15 20 25 1979 1982 1985 1988 1991 1994 1997 2000 2003 2006

Toronto Harbour Other Lake Ontario colonies

Nests (thousands) Year

Source: CWS unpublished data and TRCA

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SLIDE 19

Source: CWS unpublished data and TRCA

5,000 10,000 15,000 20,000 25,000 30,000 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007

Year

Number of nests

LAKE ONTARIO western basin central basin eastern basin

L ake Ontar io c or mor ant ne sts by L ake basin, 1979- 2007.

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SLIDE 20

C D B A

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SLIDE 21

Ne st Count Sur ve ys

  • Detailed nest surveys have been

completed since 1990

  • All nests are identified (DCCO,

BCNH, GREG) and counted

  • All trees are tagged and surveyed

by GPS

  • Each tagged tree is checked

annually

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SLIDE 22

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

1993

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SLIDE 23

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

1993

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SLIDE 24

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

1999

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SLIDE 25

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

1999

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SLIDE 26

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

2002

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SLIDE 27

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

2002

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SLIDE 28

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

2006

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SLIDE 29

Ne sts Numbe r s of DCCO and BCNH at T

  • mmy T

hompson

1000 2000 3000 4000 5000 6000 7000 8000

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

DCCO BCNH

2006

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SLIDE 30

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 A 436 695 933 907 730 779 557 311 228 101 B 1307 1814 2071 3138 1844 1582 1241 1763 1535 1139 B ground 344 *990 809 872 868 1302 C 30 281 625 633 2439 2728 3494 4699 Total 1743 2509 3034 4510 3543 3942 5855 5674 6125 7241

  • Pe ninsula A 42, and Pe ninsula B 948

DCCO Ne st Numbe r s 1998 to 2007

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SLIDE 31

Monitoring – T re e He a lth Surve ys

  • trees are individually

inspected

  • Health data is mapped in

Arcview and compiled with nesting data

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SLIDE 32

T he Change in T r e e He alth be twe e n 1996 and 2006

1996 2006

L ive T r e e s (1 and 2 r ating) De ad or Dying T r e e s (4 and 5 r ating)

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SLIDE 33

DCCO BCNH TOTAL 200 400 600 800 1000 1200 1400 1600 1800 1997 1999 2001 2003 2005 2007 2009 Year Number of Trees containing Nests

T r e e s Ne ste d in pe r Ye ar

Figure 1: Figure 1: Summary of the number of TRCA trees containing nests Source TRCA Data produced by University of Toronto (Eric Davies, Michelle Thomas, Mart Gross)

n = 3599

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SLIDE 34

2 4 6 8 10 12 14 16 18 20

DCCO alone No nests BCNH & GREG BCNH & DCCO BCNH alone

NESTING BIRD SPECIES ON FOILED TREES INDEX OF RACCOON ACTIVITY

F ig ure 1. An inde x o f ra c c o o n a c tivity fo r fo ile d tre e s

Gail S. F r ase r & Ke r r e sha Khan F ac ulty of E nvir

  • nme ntal Studie s, Yor

k Unive r sity, Blac k- c r

  • wne d Night He r
  • n r

e se ar c h on Pe ninsula C, T

  • mmy T

hompson Par k,

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SLIDE 35

Total Forest Cover At TTP 37.3 Ha

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SLIDE 36

Forest Cover Lost

  • r in Decline

9.0 Ha 25%

  • f the total

forest area

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SLIDE 37

De fore sta tion on Pe ninsula A from 1990 to 2007

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SLIDE 38

De fore sta tion a nd E rosion on Pe ninsula B from 1990 to 2006

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SLIDE 39

F

  • re st De c line on Pe ninsula C

2007

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SLIDE 40

Re c e nt Pa rtne re d Re se a rc h Proje c ts a t T T P

Canadian Wildlife Se r vic e (E nvir

  • nme nt Canada):
  • E

mbr yonic Via bility (HE RG) – Dr . Cr a ig He be r t

  • Str

e ss r e sponse s a nd Vite llog e nin Pr

  • duc tion (HE

RG) – Dr . L a ir d Shutt

  • Ne ur
  • log ic a l Impa ir

me nt (HE RG) - Doug Cr ump

  • Annua l E

g g Conta mina nts Montior ing (HE RG) – Dr . Chip We se loh

National Wate r Re se ar c h Institute (E nvir

  • nme nt Canada):
  • Mic r
  • bia l Sour

c e T r a c king to De te r mine F e c a l Pollution (a ll c olonia ls) – Dr . T

  • m

E dg e

Wr ight State Unive r sity, Ohio

  • Immune F

unc tion (HE RG) – Dr . Ke ith Gr a sma n

Unive r sity of Gue lph:

  • We st Nile vir

us, Avia n Influe nza vir us a nd Ne wc a stle Dise a se (RBGU) – Dr . Sha r

  • n

Ca lvin

Unive r sity of Ne w Br unswic k:

  • Inse c t biodive r

sity (golde nr

  • d he r

bivor e s) – Gr aham Cox (M.Sc . Stude nt) and Ste phe n B. He ar d (Assoc iate Pr

  • fe ssor

)

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SLIDE 41

Pa st Ma na g e me nt E fforts

  • Sc ar

e T ac tic s inc luding:

  • L

ase r

  • Walk- thr
  • ugh
  • Pyr
  • te c hnic s
  • Ne sting platfor

ms built on pe ninsula A

  • Gr
  • und Ne st E

nhanc e me nt

  • Inac tive ne st Re moval
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SLIDE 42
  • T

r e e s be ing lost and the r e is no r e ge ne r ation

  • Ve ge tation biodive r

sity diminishe d

  • Shor

e line e r

  • sion inc r

e asing

  • Othe r

c olonial spe c ie s impac ts

  • Migr

ator y Songbir ds stopove r and ne sting

  • Public Use of the par

k

– ~250,000 use r

s/ ye ar and inc r e asing

  • T
  • r
  • nto City Ce ntr

e Air por t c onc e r ns

  • Wate r

quality and e sthe tic c onc e r ns

Whe r e ar e we now?

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SLIDE 43

T

  • mmy T

hompson Par k Conte xt

  • TTP is ecologically significant at a local, regional, and

global scale

  • T

T P is in T

  • r
  • nto – the lar

ge st c ity in Canada e xtr e me ly high le ve l of public use s and distur banc e

  • Man-made landform

urban influences compromises natural function

  • TTP supports a variety
  • f recreation users
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SLIDE 44

Pote ntial Obje c tive s

  • Increase public awareness and knowledge of

colonial waterbirds

  • Limit further forest canopy loss
  • Maintain park biodiversity
  • Reduce shoreline erosion
  • Prevent cormorant expansion to Peninsula D
  • Investigate potential threat to public health and

safety

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SLIDE 45

T ha nk you!