• International Organisations
Scientific Committee of the International Whaling Commission [99-]
                        IWC Sub-Committees:  
  • Environmental Concerns Standing Working Group [99-]
  • Small Cetaceans Sub-committee [99-]
  • Whale-watching Sub-committee [99-]
  • By-catch and Mortality Sub-committee [01-]
  • Whale Sanctuary Review Working Group [02-03, 18-]
Chair of the Whale Sanctuary Review Working Group [18]
Co-Chair of IWC Environmental Concerns Standing Working Group [13-16]
UK Delegate to the IWC Scientific Committee [03-13]
Conservation Committee of the International Whaling Commission [08-1 0]
UK Delegate to the IWC Conservation Committee [08-09]

IUCN Commission on Ecosystem Management [09-]
 
Professional Societies
Society for Marine Mammalogy                                   
  • Board of Directors [16-]
  • Membership Chair [16-]
  • Awards Committee [10-16]
  • Membership Committee [14-]
American Cetacean Society                                  
  • Board of Directors [15-17]
  • Conservation Chair [15-17]
Society for Conservation Biology                                 
  • Board of Governors [09-16]
  • Conference Chair [13-15]
  • Policy Committee [07-15]
  • Conference Committee [13-]
  • Chapters Committee [15-]
Society for Conservation Biology - Marine Section       
  • President [09-11,11-13]
  • Board of Directors [06-16]
  • Policy Chair [07-09]
  • Policy Committee [07-]
  • Student Matters Chair [06-07]
Society for Conservation Biology – Conservation Marketing & Outreach Working Group
  • Treasurer [15-17]
  • Conference Chair [17-]
David H. Smith Fellowship                                          
  • Review Board [08-]

Conferences & Events
1st International Conservation Marketing & Engagement Congress
  • Conference Chair  [17-18]
5th International Marine Conservation Congress            
  • Publication Committee (Chair) [17-18]
  • Organizing Committee [17-18]
  • Sponsorship Committee [17-18]
4th International Marine Conservation Congress            
  • Scientific Program Committee [15-16]
  • Fundraising Committee [15-16]
  • Publication Committee (Chair) [15-16]
  • Oceans Online Org. Committee [15-16]
27th International Congress for Conservation Biology               
  • Executive Committee [14-15]
  • Organising Committee [14-15]
  • Scientific Committee [14-15]
3rd International Marine Conservation Congress           
  • Chair [11-14]
26th International Congress for Conservation Biology               
  • Vice-Chair [11-13]
  • Program Chair [11-13]
2nd International Marine Conservation Congress           
  • Program co-Chair [09-11]
  • Steering Committee [09-11]
1st International Marine Conservation Congress
  • Director (Local Secretariat ) [07-09]
  • Sustainability Committee (chair) [07-09]
6th International Congress on Coastal and Marine Tourism
  • Academic Review Committee [08-09]
Society for Conservation Biology 22nd Annual Meeting 
  • Scientific Program Committee  [07-08]
2nd IWC Workshop on Cetaceans and Climate Change
  • Steering Committee  [07-08]
IWC Large-Scale Whalewatching Research Initiative Workshop       
  • Steering Committee
5th International Congress on Coastal and Marine Tourism
  • Review panel [07-08]
 4th International Congress on Coastal and Marine Tourism
  • Steering Committee
IWC Habitat Degradation Workshop
  • Steering Committee [03-04]
IWC Whale-watching Management Workshop
  • Scientific Advisory Committee [03-04]

Others
Intel Science Challenge - Judge [14-]
Virginia Science Fair - Student Award Judge (Zoology) [07-09]
National Ocean Science Bowl - Über Judge [12]
Chesapeake Bay Bowl - Über Judge [06-13, 15-16]
Student Award Judge –International Congress for Conservation Biology [07, 10]
Student Award Judge – Biennial Conference on the Biology of Marine Mammals [03-].
Award Judge & Co-Founder - Leatherwood (Asian Conservation) Award – Biennial Conference on the Biology of Marine Mammals [05-13].

Editorial Positions
Frontiers in Marine Science – Associate Editor [14-]
Journal of Environmental Studies and Sciences – Managing Editor [18-]; Associate Editor [10-]
Tourism in Marine Environments - Editorial Board [05-].
Conservation Biology – Handing Editor [13-14]
Ocean and Coastal Management – Guest Editor (special issue on the International Marine Conservation                                                                                                                                Congress)
Marine Pollution Bulletin – Guest Editor (special issue on sonar mitigation)
Bulletin of Marine Science – Guest Editor (special issue “Making marine science matter”)
Journal of Marine Biology – Guest Editor (special issue on whale and dolphin conservation)
European Research on Cetaceans - Editor [97-99]; Asst. Editor [95-96]
           
Scientific Advisory
            Proyecto Amigos de los Delfines – Scientific Advisor [03-]
             Eastern Taiwan Strait Sousa Technical Advisory Working Group – Vice Chair [07-]
 
University Committees & Organisations
College of Science Curriculum Committee [09-]: Chair [11-12; 15-]; Co-chair [13-15]; Deputy Chair [12-13]
Environmental Science & Policy - Ad hoc By-laws Committee [16-17]
Environmental Science & Policy – Academic Assessment Committee [15-17]
Environmental Science & Policy - Graduate Executive Committee [09-]
Environmental Science & Policy - Curriculum Committee [07-13]
Mason Center for Conservation Studies
  • Deputy Director [08-12]
  • Academics Committee [08-12]
  • Curriculum Committee [08-12]
Inter-Collegeate Curriculum Committee [11-12]
Environmental Science & Policy Graduate Student Association – Faculty Advisor [06-]
George Mason University Environmental Awareness Group – Faculty Advisor [07-12]
Faculty search committees: conservation biology (x2 positions); environmental policy; aquatic ecology (chair); undergraduate coordinator (chair)
 
United Kingdom
NADAIR (Nature And Development in the Argyll Islands Region) Trust – Director [01-03]
Scottish Environment Link - Marine Task Force [00-03]
Hebridean Marine National Park Partnership – Council Member [02-03]
Tourism and the Environment Forum – Steering Committee [01-03]
UK Biodiversity Action Plan - Cetaceans Steering Group [00-02]
UK Biodiversity Action Plan – Marine Turtles Steering Group [00-02]
UK Biodiversity Action Plan - Basking Sharks - Steering Group [00-01]
Scottish Environment Link - Tourism Task Force [02]
Argyll & Bute Regional Environmental Education Forum - Steering Group [00-02]
Highland Region Bio-Diversity Action Plan - Steering Group [99-01]
Argyll Bio-Diversity Action Plan - Marine Technical Group [99-02]
Mull & Iona Ranger Service - Management Committee  [99-02]
Marine Animal Rescue Coalition - Committee Member [99-02]
Royal Navy/Environmental NGO Liaison Committee – Initiator & Committee Member [99-02]
British Divers Marine Life Rescue - Regional Co-ordinator [98-02]
UK Cetacean Sighting Network – Regional Co-ordinator [98-02]
Mull & Iona Land & Sea Forum - Steering Committee [98-02]
 
Hong Kong
Royal Geographical Society (Hong Kong) - Council  [95-97]
Hong Kong Marine Conservation Society – Secretary [94-96]
Hong Kong Dolphin Conservation Society – Scientific Advisor [04-]