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Keygan Sands
OverviewSpecies: Sousa chinensisGenus: SousaFamily: DelphinidaeSub-Order: OdontocetiOrder: CetaceaClass: MammaliaPhylum: C...
Ecology• Inshore coastal, estuarine,mangrove habitats• Feeds on fish, mainly reefand estuarine• Preyed on by sharks
“Resource partitioning in sympatric delphinids: spaceuse and habitat preferences of Australian snubfin andIndo-Pacific hum...
The StudyBehavior Results:• Humpbacks: mostly foraging, significant difference withlocation/time• Snubfins: foraging/trave...
The Study (cont.)Habitat Selection Results:• Humpbacks: prefer 2-5 m deep water and dredgedchannels• Snubfins: prefer 1-2 ...
Conclusions• Habitat heterogeneity is crucial• Influences of the land are important• Sympatric dolphins coexist in varied ...
Works CitedInformationImagesBarros, Nelio B, Thomas A. Jefferson, and E. C. M. Parsons. “Feeding Habits of Indo-PacificHum...
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Indo Pacific Humpback Dolphins

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A brief informational presentation on the Indo-Pacific humpback dolphin and a particular study of it. The music portion was an experiment, and only fits the theme in that it is from the video game Ecco the Dolphin: Defender of the Future. No narration.

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Indo Pacific Humpback Dolphins

  1. 1. Keygan Sands
  2. 2. OverviewSpecies: Sousa chinensisGenus: SousaFamily: DelphinidaeSub-Order: OdontocetiOrder: CetaceaClass: MammaliaPhylum: ChordataKingdom: Animalia• Unique morphology, coloration• Males up to 3.2 meters, femalesup to 2.4 m• Elaborate vocal repertoire(echolocation, contact calls)• Small groups
  3. 3. Ecology• Inshore coastal, estuarine,mangrove habitats• Feeds on fish, mainly reefand estuarine• Preyed on by sharks
  4. 4. “Resource partitioning in sympatric delphinids: spaceuse and habitat preferences of Australian snubfin andIndo-Pacific humpback dolphins” -Guido J. ParraHow do two dolphin species coexist in the samehabitat?Findings:• Two species share a significant range with similar behaviors• Primary behavior was foraging• Humpbacks prefer deeper water (2-5 m) and dredgedchannels• Snubfins prefer shallower water (1-2 m) and seagrass beds• Fine-scale habitat selection and aggressive exclusion arefactors allowing coexistence
  5. 5. The StudyBehavior Results:• Humpbacks: mostly foraging, significant difference withlocation/time• Snubfins: foraging/traveling, no significant difference• Spatial overlap 81%, concordance in space use patterns
  6. 6. The Study (cont.)Habitat Selection Results:• Humpbacks: prefer 2-5 m deep water and dredgedchannels• Snubfins: prefer 1-2 m deep water and seagrass beds
  7. 7. Conclusions• Habitat heterogeneity is crucial• Influences of the land are important• Sympatric dolphins coexist in varied ways
  8. 8. Works CitedInformationImagesBarros, Nelio B, Thomas A. Jefferson, and E. C. M. Parsons. “Feeding Habits of Indo-PacificHumpback Dolphins (Sousa chinensis) Stranded in Hong Kong.” AquaticMammals 30, no. 1 (2004): 179-88.Carwardine, Mark, Erich Hoyt, R. Ewan Fordyce, and Peter Gill. A Guide to Whales, Dolphins& Porpoises. San Francisco: Fog City Press, 1998.Ellis, Richard. Dolphins and Porpoises. New York: Alfred A. Knopf, Inc., 1989.Napier, Stephanie. “Sousa chinensis.” Animal Diversity Web. <http://animaldiversity.ummz.umich.edu/accounts/Sousa_chinensis/>Parra, Guido J. “Resource partitioning in sympatric delphinids: space use and habitatpreferences of Australian snubfin and Indo-Pacific humpback dolphins.” Journal ofAnimal Ecology 75 (2006): 862-74.Van Parijs, Sofie M.; Corkeron, Peter J. “Vocalizations and Behaviour of Pacific HumpbackDolphins Sousa chinensis.” Ethology 107 (2001): 701-16.“Indo-Pacific Humpback Dolphin (Sousa chinensis)” <http://www.aquabio.com/sousa-chinensis.html>“Indo-Pacific Humpback Dolphin (Sousa chinensis)” <http://www.arkive.org/indo-pacific-humpback-dolphin/sousa-chinensis/image-G113129.html>“Moreton Bay and Moreton Island.” <http://www.brisbane-australia.com/moreton-bay-and-moreton-island.html>“The Indo-Pacific Humpback Dolphin.” Capricorn Cetaceans Project. <http://www.capricorncetaceansproject.com/indo-pacific-humpback-dolphins.html>

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