neca marcovaldi research and conservation in brazil · caretta caretta loggerhead espirito santo...
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Research and Conservation in BrazilWIDECAST annual meeting, 2015
Neca Marcovaldi
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Tamar in Brazil
25 localities
1100 km monitored
Standardized data collection
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Caretta carettaEretmochelys imbricata
Chelonia mydas
Lepidochelys olivacea Dermochelys coriacea
5 sea turtle species
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Caretta carettaLoggerhead
Espirito Santo
Sergipe
Bahia
Rio de Janeiro
-Nests/year: ~ 9.000
2004 2005 2006 2007 2008 2009 2010 2011
0
1000
2000
3000
4000
5000
6000
Season
Ne
sts
espécie = CC
cresc. anual = 4.6 %
estimated
observed
confidence interval p = 0.95
2004-2011 (8 yr)Annual increase (BA/SE) = 4.6 %
TAMAR unpublished data
1988-2003 (16 yr)Annual increase (BA) = 6.4 %Annual increase (ES) = 1.9 %
Marcovaldi & Chaloupka 2007
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Eretmochelys imbricataHawksbill
-nests/year ~2.500
1990 1992 1994 1996 1998 2000 2002 2004 2006
Season
Nu
mb
er
of n
ests
Ba/Se
0
500
1000
1500
Pipa
MARCOVALDI et. al. 2007
BA/SE : apox. increase in thenumber of nests. 7 x
BA/SE Annual increase = 5.7 %
TAMAR unpublished data
1991-2006 (15 yr) 2004-2011 (8 yr)
BA
RN
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Lepidochelys olivaceaOlive ridley
-Nests/year: ~ 9.500
91 92 93 94 95 96 97 98 99 00 01 02
Season
0
500
1000
1500
2000
2500
3000
Nu
mb
er
of
clu
tch
es
estimated
observed
Aprox. increase in numbers. 10XDa Silva et al. 2007
Annual increase (BA/SE) = 12.3 %
TAMAR unpublished data
1991-2002 (11 y) 2004-2011 (7 yr)
BASE
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Dermochelys coriaceaLeatherback
Nests/year: 20-100
THOMÉ, ET AL. 2007.
1988-2003 (15 yr)
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Chelonia mydasGreen turtle
Almeida et al. (2011). ESRBellini et al. (2012). JMBA
Population showed a stable trend from 1991 to 2008.
-Nests/year: ~ 5.000
ARFN
Trindade
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Each “tartarugueiro” patrols daily 5 km of nesting beaches Monitoring and Protection Standard and regular data collection only by researchers
Methodology
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Monitoring & protection Nests are marked and
monitored until they hatch
All data is collected by
researchers and stored in a
national database
In situ - 70% of the nests
Beach relocation - 13 % of the nests
Open-air Hatcheries
Collection of incubation
parameters to compare with
control nests (in situ)
17% of the nests
When extremely necessary.
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Tagging Biometrics Tissue sampling
Night Patrols
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Number of nests/species - 2013/2014
Total number of nests protected = 27164
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Monitoring of stranded turtles
• Stranding analyses Strategic indicator for conservation
Which answers we seek??
•Carcass analysis: acute death or chronic death (disease);
•Correlation between strandings and human activities in the area;
•Monitoring the population health (FP);
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Capture-mark-recapture
Demographic parameters ResidencySite fidelity
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Activities in foraging areas
• Rehabilitation of injured turtles
• Fisheries monitoring
• Turtles captured are brought to TAMAR for data collection (i.e. biometry, species identification, tagging, etc.)
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Brazilian National Plan to Reduce the Incidental
Capture of Sea Turtle in the Fisheries
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Coastal and oceanic fisheries that interact with sea turtles in Brazil
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Lepidochelys olivaceaCaretta caretta
Dermochelys coriacea
Spatial distribution of sea turtles captured in pelagic longline fisheries(1999-2013)
Sets
n = 21.854.569 hooks
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Fisheries Main species Mitigation measures Required by law In use
Longline Cc, Dc, Lo
Circle hook No Partial
Tools(line cutter/dehooker)
No Partial
Nets Cm, Cc, Lo, Ei, Dc Time-area closure Yes Partial
Trawl Lo, CcTime-area closure Yes Yes
TED Yes No
Mitigation measures
Cc = Caretta caretta; Dc = Dermochelys coriacea; Lo = Lepidochelys olivacea; Cm = Chelonia
mydas; Ei = Eretmochelys imbricata
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... estudos de rotas migratórias através de
marcas e rastreadores por satélite ...
Advances in research Satellite telemetry Genetics Stable isotopes Dataloggers
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Genetics
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DataloggersSand temperature monitoring at main nesting beaches
1) Thermal profile ateach area (variation and hatchling sex ratio)
•2) Predict temperature at each nesting site for different climate change scenarios
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Satellite telemetry (2005-2015)Nesting females
• 98 tags total
• 60 tags on-going projects
• 38 tags past projects *
• 29 Cc, 15 Ei, 3 Dc, 51 Lo
Juveniles
• 11 tags Cc (juveniles)*
• 19 tags Cc (neonate)
* published
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Satelite telemetry – nesting females
Migration and foraging areas
Marcovaldi et al. 2010 Marcovaldi et al. 2012Silva et al. 2011
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27 Satellite transmitters deployedIndividuals captured by the pelagic longline fishery fleet from BR and UY
Barceló et al. 2013. MEPS
Size range:49 – 83 cm CCLMean size:62 cm CCL
Satelite telemetry – Juvenile loggerheads
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Young turtles in the South Atlantic appear to be influenced by seasonal changes in current regimes
North or South direction
Initial trajectories along the continental slope
N= 1910.8-26.8 cm SCL
Satelite telemetry – Oceanic juvenile loggerheads
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Peer-review papers: 142Congress and symposia: 415Thesis: 86
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Sea Turtle Red List Assessment in Brazil (2010)
Based on the IUCN criteria
http://www.icmbio.gov.br/revistaeletronica/index.php/BioBR/issue/view/13/showToc
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National Action Plan for the Conservation of Sea Turtles in
Brazil (NAP) - 2010 /2015
http://www.icmbio.gov.br/portal/images/stories/docs-plano-de-acao/pan-tartarugas/livro_tartarugas.pdf
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Threat analysisThe lack of knowledge regarding the relative importance of threats that each species faces leads to long “shopping lists” of actions that ultimately contribute to the failure of recovery plans(Lawler et al. 2002).
LISTA!!
...!?
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Threats – spatial distribution
• Gillnets throughout the coast -> greens (foraging))
• Coastal Development - main nesting beaches along the SE/NE coast of Brazil -> Cc, Dc, Lo, Ei adults and hatchlings (Revista Biodiversidade Brasileira 2011)
• Trawl fishery in SE -> olive ridelys (breeding grounds)
• Trawl fishery in RG-> loggerheads (foraging)
• Gillnets in ES -> leatherbacks (breeding grounds)
• Pollution (marine litter/ garbage) -> greens juv (Baptistotte et al. In press)
• Longline -> Leatherbacks (foraging) juv and adults
• Longline -> Loggerheads (foraging) juv and adults
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Tamar at school and the school at Tamar
Special environmental education programs
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Tamar at school (CE / RN-PE / SE/ BA/ ES/ SP)
Visitors Center attendance
Special environmental education programs
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Job opportunities, capacity building and cultural valuation
The triple-bottom-line (TBL) is an accounting framework that incorporates three dimensions of performance: social,
environmental and financial.
The TBL dimensions are also commonly called the three Ps: people, planet and profits.
Slaper & Hall. 2011. Indiana Business Review: 86 (1)
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Job opportunities, capacity building and cultural valuation
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Job opportunities, capacity building and cultural valuation
1884 people involved
Direct colaborators
Productive groups
Internship and training program
Capacity building courses
Tartarugueiros;
Permanent support to socio-educationalinstitutions
Support to events andcultural groups
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Environmental awareness
Beach Campaign Oriented to Beach Users
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Environmental awareness
“Not Everything Caught in the Net is Fish” Campaign
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Visitors Centers (9)
Promote environmental education and awareness, capacity building and rehabilitation of sea turtles; generate hundreds of jobs and revenue for the region where they
operate and serve as a tool for raising funds for conservation ….
.
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Stores (11)
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Upon reaching the 30th anniversary in 2010, we included the music as a strategy for environmental awareness ...
DVD Musical
CD 01 CD 02
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The initiative had a positive impact, various events spread the message, artists engaged, bands were formed at Tamar’s cultural
spaces and new lyrics were created for the conservation of turtles, seas and oceans
... and others.
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• All 5 sea turtle species recovering (increasing trends for 4 spp. and 1 stable)
• 100% coverage of main nesting beaches (1100 km)
• Around 27.000 nests protected each yr
• Standardized data collection for more than 35 yr (SITAMAR)
• Systematic and standardized data recording on community involvement (SIGRE)
• 1800 job opportunities created
• 15 million visitors/Visitors Centers
• 50 – 60% of the total budget
• generated by sustainable activities
Metrics and demonstrated success
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Projeto TAMAR, is a cooperation between ICMBio andFundação Pró-TAMAR, national sponsored by
PETROBRAS.