The Whale and Dolphin Conservation Society (WDCS) seeks to be a global voice for the protection of cetaceans and their environment.
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1 The Whale and Dolphin Conservation Society (WDCS) seeks to be a global voice for the protection of cetaceans and their environment. WDCS s objectives are to reduce, and ultimately, eliminate the continuing threats to cetaceans and their habitats.
2 etaceans face a wide range of threats in a rapidly changing world Growing evidence of impact from: fisheries and bycatch chemical pollution ship strikes, noise, disturbance and harassment habitat loss and degradation deliberate hunts Many of these impacts are difficult to monitor.
3 etaceans are a diverse group of animals, many of which are highly migratory Currently 86 recognized species of cetaceans (whales, dolphins and porpoises) Many populations are known to be vulnerable or endangered Several species are in danger of extinction Status of the vast majority of cetacean populations is not well known and it is difficult to create confident assessments about a population s survival probability
4 Out of sight and out of mind highly migratory species occur over the global commons and often outside national jurisdictions particularly vulnerable to change in their critical and often little understood habitats. - high order predators - low reproductive rates - long term investment in their offspring, and - reliance of often change critical habitats. Their habitat needs are still poorly understood, often occurring beyond area that can be easily researched
5 egular, irregular and sometimes vast migrations so much remains unknown Migration can be cyclical and predictable, coinciding with changes in season, or less predictable, involving movement over several thousand miles and sometimes entirely on the high seas Can appear random, or driven by unique circumstances, and may not appear to be cyclic Only research will tell us more It is increasingly recognized that our understanding of cetacean biology and population dynamics is going to remain inadequate in the foreseeable future. Thus following the precautionary principle, we need to be prepared to act. Hal Whitehead 2000
6 The humpback migration
7 The humpback migration Humpbacks found in all the oceans of the world distribution changes with summer and winter seasons, migrating from feeding grounds in polar regions in the summer to breeding areas in the warm waters around the Equator in the winter. Northern Hemisphere populations probably never meet Southern Hemisphere populations.
8 Sperm whales mighty journeys The largest brain on earth and the largest of the toothed whales (reaching about 18 metres long and 45 tonnes) Likely the deepest diver of all mammals (>2,000 metres) Extreme differences between the sexes with: - females averaging 15 tonnes and males averaging 45 tonnes - females remaining in the tropics and sub-tropics, where males migrate to the ice edges - females remaining in permanent, highly-social groups with communal care of young and males living solitarily
9 Sperm whales mighty journeys Sperm whales are highly affected by humans through whaling, noise and chemical pollution, and are particularly susceptible because of their low birth rate and complex social system Two huge hunts have left sperm populations at about 32% of their pre-whaling numbers
10 Orcas, the oceans wide ranging wanderers among the most widelydistributed mammals on Earth populations can be between one hundred and up to three hundred individuals found in all the oceans of the world, tend towards small, thinly distributed populations ranging over large hunting areas.
11 Orcas, the oceans wide ranging wanderers degree of migration is reflected in the distribution of their preferred prey migration can be thousands of kilometres. Highly social and long lived, orca stay together in long-time matrilineal associations orca communities confer an importance to the roles of older animals, especially females.
12 The answer may lie in regional solutions Highly migratory nature of cetaceans means that effective protection can only be achieved by means of international cooperation. Impacts experienced by cetaceans differ significantly from region to region. Developing solutions to conservation problems is possible through regional Agreements. WDCS puts faith in the conservation opportunity of CMS Regional Agreements
13 CMS, ASCOBANS and ACCOBAMS CMS a convention with a strong future Six great whale species listed on Appendix I and seven other cetacean species listed on Appendix II designated for concerted and co-operative action in 2002 WDCS is working towards CMS Agreements in the Indian Ocean, South Pacific and South Atlantic WDCS remains strongly committed to ASCOBANS and ACCOBAMS Number of examples of co-operative work available
14 The Mediterranean common dolphin Delphinus delphis
15 Short-beaked common dolphin About 2 m, 90 kg Life span >20 years Relatively flexible diet Can live in groups composed of hundreds of individuals
16 In 2003 first comprehensive review of Mediterranean common dolphin status
17 The common dolphin Used to be found frequently throughout the Mediterranean The species has faced a dramatic decline in numbers during the last years Main threats include: bycatch in fishing gear (including driftnets) prey depletion habitat degradation environmental change resulting from global warming
18 Mediterranean common dolphins are declining Mediterranean population listed as Endangered (IUCN Red List, 2003) Known present distribution:
19 Strandings in France,
20 Museum aquisitions in Italy,
21 Two case studies Northern Adriatic Sea Eastern Ionian Sea
22 Case study 1: Eastern Ionian Sea Field research
23 Case study 1 Eastern Ionian Sea Ten years of extensive photo-identification resident community of 100 common dolphins ID name j j a s j j a s o j a s j j a s o a m j j a s o a m j j a s o j j a s o j j a s a j j a s j j SABRINA n n nnn n nnn nn nnnnn nnnn nnnn EDOARDO n n nnn nnnnnnnnnnnn n n nnnn NIGEL n n n n n n n n n n n n n n n n n n n n n FIL n n n n n n n n n n n n n n n n n n n n n ELISA n n n n n n n n n n n n n n n n n n n n n n PEPPO n n n n n n n n n n n n n n n n n n n n n LINS n n n n n n n n n n n n n n n n n n n n n KULA n n n n n n n n n n n n n n n n n n n n n WHITE n n n n n n n n n n n n n n n n n n n n DAPHNI n n n n n n n n n n n n n n n n n n n TARASON n n n n n n n n n n n n n n n n n n n AETOS n n n n n n n n n n n n n n n n n n MAX n n n n n n n n n n n n n n n n n CHILL n n n n n n n n n n n n n n n n n ENRICO n n n n n n n n n n n n n n n n n MAURO n n n n n n n n n n n n n n n SIMO n n n n n n n n n n n n n n SIM-PEPPO n n n n n n n n n n n n n n n ROBI n n n n n n n n n n n n n n n CHARLIE n n n n n n n n n n n n n n n ALEX n n n n n n n n n n n n n n n BIANCA n n n n n n n n n n n n n n n ODISSEAS n n n n n n n n n n n n n PILU n n n n n n n n n n n n n EWOK n n n n n n n n n n n n n n PEPE n n n n n n n n n n n n n n SIMON n n n n n n n n n n n n n n GRAZIA n n n n n n n n n n n n n n HAWK n n n n n n n n n n n n n n SNOW n n n n n n n n n n n n n AHILLEAS n n n n n n n n n n n n n MARINA n n n n n n n n n n n n n TARAMA n n n n n n n n n n n SUSIE n n n n n n n n n n n SEBA n n n n n n n n n n n PIERO n n n n n n n n n n n SIM-BIANCA n n n n n n n n n n n SAIL n n n n n n n n n n n PARIS n n n n n n n n n n MOKY n n n n n n n n n n DORAD n n n n n n n n n n ARPO n n n n n n n n n DANNY n n n n n n n n n MARGHE n n n n n n n n n ARTURO n n n n n n n n GEORGES n n n n n n n n VALONA n n n n n n n n TONY n n n n n n n n DELFI n n n n n n n n ARIANNA n n n n n n n CIRCE n n n n n n n BEAU n n n n n n n DIRK n n n n n n n MAUDE n n n n n CHIP n n n n n BETTA n n n n n GIULI n n n n n ADA n n n n ELIA n n n MAMI n n n BOLLA n n TEO n n ANDREA n TRIPA n n
24 Case study 1 Eastern Ionian Sea 767 surveys 21,000 km
25 Case study 1 Eastern Ionian Sea Past availability of prey and low contaminant levels have combined to create a favorable environment for common dolphins The area of Kalamos has been listed as Site of Community Importance based on the presence of one of the last common dolphin communities in the central Mediterranean Common dolphins were healthy and abundant until 1996, however...
26 Case study 1 Eastern Ionian Sea Since 1997 this community has shown clear signs of decline
27 Case study 1 Eastern Ionian Sea Reasons behind decline: unknown Suspected reason: Prey depletion Evidence of overfishing of key common dolphin prey No evidence of bycatch No evidence of other threats
28 Case study 2: Northern Adriatic Sea Field research Review of historical literature
29 Case study 2 Northern Adriatic Sea Common dolphins were abundant until the 1970s Then, common dolphins vanished (today only bottlenose dolphins remain)
30 Case study 2 Northern Adriatic Sea
31 Case study 2 Northern Adriatic Sea Reasons behind decline Historical killings Habitat degradation Prey depletion
32 Case study 2 Northern Adriatic Sea Environment Habitat degradation s
33 Case study 2 Northern Adriatic Sea Environment Fishing Habitat degradation s
34 Case study 2 Northern Adriatic Sea Environment Fishing Habitat degradation s Killings
35 Case study 2 Northern Adriatic Sea Environment Fishing Habitat degradation Dolphins s Killings
36 Case study 2 Northern Adriatic Sea Environment Historical Fishing literature (non-quantitative) Habitat degradation Dolphins s Killings
37 Case study 2 Northern Adriatic Sea Environment Historical Field Fishing literature (non-quantitative) research Habitat degradation (quantitative) Dolphins s
38 pristine present shifting baseline Dolphins s
39 Based on this and other evidence, in 2002 ACCOBAMS commissioned a Conservation Plan for common dolphins in the Mediterranean Sea to be carried out by the Tethys Research Institute The Plan (in preparation) is expected to contribute to common dolphin conservation by promoting actions including management, legislation, research, capacity building, public awareness and education
40 All this work has been the result of a partnership among a legislative instrument a research institute two advocay organizations a private sponsor
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