Delphinus capensis - Gray, 1828
Long-beaked Common Dolphin
Other English Common Names: Long-beaked Saddleback Dolphin
Taxonomic Status: Accepted
Related ITIS Name(s): Delphinus capensis Gray, 1828 (TSN 555654)
Spanish Common Names: Delfín Común de Hocico Largo
Unique Identifier: ELEMENT_GLOBAL.2.105487
Element Code: AMAGE03020
Informal Taxonomy: Animals, Vertebrates - Mammals - Whales and Dolphins
 
Kingdom Phylum Class Order Family Genus
Animalia Craniata Mammalia Cetacea Delphinidae Delphinus
Genus Size: B - Very small genus (2-5 species)
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Concept Reference
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Concept Reference: Heyning, J. E., and W. F. Perrin. 1994. Evidence for two species of common dolphins (genus DELPHINUS) from the eastern North Pacific. Nat. Hist. Mus. Los Angeles County Contrib. Sci. (442):1-35.
Concept Reference Code: B94HEY02NAUS
Name Used in Concept Reference: Delphinus capensis
Taxonomic Comments: Mead and Brownell (in Wilson and Reeder 1993) included D. bairdii, D. capensis, and D. tropicalis in D. delphis. Heyning and Perrin (1994) examined variation in Delphinus in the eastern North Pacific and found two distinct forms, a short-beaked form that they recognized as D. capensis (D. bairdii is a junior synonym), and a long-beaked form regarded as D. delphis. They noted that the status of D. tropicalis needs to be examined to determine if it is an extremely long-beaked form along a cline of D. capensis or a third species of Delphinus. Mead and Brownell (in Wilson and Reeder 2005) recognized D. capensis and D. delphis (but not D. tropicalis) as distinct species.
Conservation Status
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NatureServe Status

Global Status: G4G5
Global Status Last Reviewed: 15Nov1996
Global Status Last Changed: 15Nov1996
Rounded Global Status: G4 - Apparently Secure
Nation: United States
National Status: NU (19Feb1997)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States California (SNR)

Other Statuses

IUCN Red List Category: DD - Data deficient
Convention on International Trade in Endangered Species Protection Status (CITES): Appendix II

NatureServe Global Conservation Status Factors

Range Extent Comments: In the eastern Pacific, recorded from Point Conception, California, south to Peru, including the Gulf of California; in the western Pacific, known from the coasts of Korea, southern Japan, and Taiwan; records from the Atlantic are from coastal Venezuela south to the La Plata region of Argentina; also occurs along the west coast of Africa and in waters off South Africa, Madagascar, and the Arabian Peninsula; nominal species D. TROPICALIS, occurring around the edges of the Arabian Sea and some areas off southeastern Asia, may be this species (Heyning and Perrin 1994).

Other NatureServe Conservation Status Information

Distribution
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Global Range: In the eastern Pacific, recorded from Point Conception, California, south to Peru, including the Gulf of California; in the western Pacific, known from the coasts of Korea, southern Japan, and Taiwan; records from the Atlantic are from coastal Venezuela south to the La Plata region of Argentina; also occurs along the west coast of Africa and in waters off South Africa, Madagascar, and the Arabian Peninsula; nominal species D. TROPICALIS, occurring around the edges of the Arabian Sea and some areas off southeastern Asia, may be this species (Heyning and Perrin 1994).

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map
Endemism: occurs (regularly, as a native taxon) in multiple nations

U.S. & Canada State/Province Distribution
United States CA

Range Map
No map available.

Ecology & Life History
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Reproduction Comments: Presumably similar to D. DELPHIS.
Ecology Comments: Travels in groups.
Habitat Type: Marine
Non-Migrant: N
Locally Migrant: N
Long Distance Migrant: N
Marine Habitat(s): Near shore
Habitat Comments: Nearshore tropical and temperate waters (Heyning and Perrin 1994).
Adult Food Habits: Invertivore, Piscivore
Immature Food Habits: Invertivore, Piscivore
Food Comments: Feeds opportunistically on schooling fishes (e.g., smelt, herring, mackerel, mullet, lantern fish) and squid.
Adult Phenology: Circadian
Immature Phenology: Circadian
Phenology Comments: Active day and night.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation
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Group Name: Dolphins and Porpoises

Use Class: Not applicable
Minimum Criteria for an Occurrence: A marine area that is or has been occupied consistently or recurrently. Occurrences not based on the entire range of particular populations or subpopulations, but rather on distinct areas that are important to the survival of these populations. Minimally, at least two and preferably several years of observation should be used to reliably identify significant, recurrent occurrences.
Separation Barriers: Upland areas.
Separation Distance for Unsuitable Habitat: 20 km
Separation Distance for Suitable Habitat: 20 km
Separation Justification: Separation Distance arbitrary. In most cases, occurrences should not be extensive areas but rather portions of such areas that stand out as strongly meeting the occurrence criteria.
Available information on genetics, dispersion, and movement patterns of most populations generally is insufficient to determine biologically meaningful separation distances for occurrences. The separation distance used here does not attempt to identify biologically distinct populations but rather is an arbitrary value that attempts to identify relatively distinct geographic areas that have frequent or concentrated activity and that are of practical size.
Bottlenose Dolphins (TURSIOPS TRUNCATUS) that were resident in a South Carolina estuary had relatively small home ranges (mean 51.3 square kilometers, 95% adaptive kernel method; Gubbins 2002).

Date: 06Mar2002
Author: Cannings, S.
Notes: Contains all members of the families Delphinidae and Phocoenidae, except ORCINUS ORCA.
Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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Element Ecology & Life History Edition Date: 16Feb1995
Element Ecology & Life History Author(s): Hammerson, G.

Zoological data developed by NatureServe and its network of natural heritage programs (see Local Programs) and other contributors and cooperators (see Sources).

References
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  • Bradley, R.D., L.K. Ammerman, R.J. Baker, L.C. Bradley, J.A. Cook. R.C. Dowler, C. Jones, D.J. Schmidly, F.B. Stangl Jr., R.A. Van den Bussche and B. Würsig. 2014. Revised checklist of North American mammals north of Mexico, 2014. Museum of Texas Tech University Occasional Papers 327:1-28. Available at: http://www.nsrl.ttu.edu/publications/opapers/ops/OP327.pdf

  • Gubbins, C. 2002. Use of home ranges by resident bottlenose dolphins (TURSIOPS TRUNCATUS) in a South Carolina estuary. Journal of Mammalogy 83:178-187.

  • Heyning, J. E., and W. F. Perrin. 1994. Evidence for two species of common dolphins (genus DELPHINUS) from the eastern North Pacific. Nat. Hist. Mus. Los Angeles County Contrib. Sci. (442):1-35.

  • Rice, D. W. 1998. Marine mammals of the world: systematics and distribution. Society for Marine Mammalogy, Special Publication Number 4. ix + 231 pp.

  • Wilson, D. E., and D. M. Reeder (editors). 2005. Mammal species of the world: a taxonomic and geographic reference. Third edition. The Johns Hopkins University Press, Baltimore. Two volumes. 2,142 pp. Available online at: https://www.departments.bucknell.edu/biology/resources/msw3/

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