Irrawaddy Dolphin

Orcaella brevirostris (Owen ex Gray 1866)

2018 Simon J. Tonge cc-by-3.0

Orcaella brevirostris (Irrawaddy Dolphin) is a species of mammals in the family Delphinidae. They are listed as endangered by IUCN and in cites appendix i. They are associated with freshwater habitat. They are native to Pacific Ocean, Indian Ocean, and Asia. They are solitary, diurnal carnivores. Individuals can grow to 2500 mm. They have parental care (female provides care). They rely on swimming and lift powered swimming to move around.

URI: http://eol.org/schema/terms/endangered
Definition: A taxon is Endangered when the best available evidence indicates that it meets any of the \r\ncriteria A to E for Endangered, and it is therefore considered to be facing a very high risk of extinction in the wild.
Source: http://apiv3.iucnredlist.org/api/v3/taxonredirect/15419

show all records

URI: http://eol.org/schema/terms/CITES_I
Definition: Appendix I lists species that are the most endangered among CITES-listed animals and plants. They are threatened with extinction and CITES prohibits international trade in specimens of these species except when the purpose of the import is not commercial, for instance for scientific research. In these exceptional cases, trade may take place provided it is authorized by the granting of both an import permit and an export permit (or re-export certificate). Article VII of the Convention provides for a number of exemptions to this general prohibition.
Source: https://www.speciesplus.net/#/taxon_concepts/9382/legal

show all records

URI: http://purl.obolibrary.org/obo/ENVO_00000873
Definition: A biome that applies to the freshwater realm.

show all records

URI: http://www.marineregions.org/mrgid/1903

show all records

URI: http://www.marineregions.org/mrgid/1904

show all records

URI: http://www.geonames.org/6255147

show all records

URI: http://www.wikidata.org/entity/Q81875
Definition: organism that eats mostly or exclusively animal tissue

show all records

URI: http://eol.org/schema/terms/solitary
Definition: Solitary animals are those that spend a majority of their lives without others of their species, with possible exceptions for mating and raising their young. Antonyms for a solitary animal include a social animal or a colonial animal.
Attribution: https://www.definitions.net/definition/solitary+animal

show all records

URI: http://www.wikidata.org/entity/Q906470
Definition: animal behavior characterized by activity during the day, with a period of inactivity at night.

show all records

URI: http://eol.org/schema/terms/parentalCareFemale
Definition: the female feeds and nurtures offspring
Attribution: Richard M. Sibly, Christopher C. Witt, Natalie A. Wright, Chris Venditti, Walter Jetz, and James H. Brown. 2012. Energetics, lifestyle, and reproduction in birds. PNAS 109(27):10937-10941, doi:10.1073/pnas.1206512109

show all records

URI: http://purl.obolibrary.org/obo/GO_0036268
Definition: Self-propelled movement of an organism from one location to another through water, often by means of active fin movement.

show all records

URI: https://eol.org/schema/terms/lift_based_swimming
Definition: Hydrofoils, or fins, are used to push against the water to create a normal force to provide thrust, propelling the animal through water. The reduction of fin cross-sectional area helps to minimize drag, and therefore increase efficiency. Regardless of size of the animal, at any particular speed, maximum possible lift is proportional to (wing area) x (speed)<sup>2</sup>. Dolphins and whales have large, horizontal caudal hydrofoils, while many fish and sharks have vertical caudal hydrofoils.

show all records

EOL has data for 54 attributes, including:

body shape
- URI: http://eol.org/schema/terms/BodyShape
show all records
bilaterally symmetric
- URI: http://purl.obolibrary.org/obo/PATO_0001324
- Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves
show all records
diet breadth
- URI: http://eol.org/schema/terms/DietBreadth
- Definition: Number of dietary categories eaten by an organism.
show all records
1
diet includes
- URI: http://eol.org/schema/terms/Diet
- Definition: Information about the items eaten by this organism.
show all records
crustaceans
- URI: https://www.wikidata.org/entity/Q25364
- Definition: subphylum of arthropods
show all records
ecomorphological guild
- URI: http://eol.org/schema/terms/EcomorphologicalGuild
- Definition: organisms that share certain morphological traits due to adaptation to similar environments and ecological roles
show all records
nectonic
- URI: http://www.marinespecies.org/traits/Nekton
- Definition: Active swimming organisms that live in the water column and are able to move independently of the water mass (adapted from Lincoln et al., 1998).
- Attribution: http://www.marinespecies.org/traits/wiki/Traits:Nekton
show all records
geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
show all records
India
- URI: http://www.geonames.org/1269750
show all records
habitat breadth
- URI: http://eol.org/schema/terms/HabitatBreadth
- Definition: Number of habitat layers used by an organism
show all records
1
mating system
- URI: http://eol.org/schema/terms/MatingSystem
show all records
not monogamous
- URI: http://eol.org/schema/terms/notMonogamous
show all records
native range includes
- URI: http://eol.org/schema/terms/NativeRange
- Definition: Lists jurisdictions in which a given organism is a member of the undisturbed fauna or flora.
show all records
Pacific Ocean
- URI: http://www.marineregions.org/mrgid/1903
show all records
population group size
- URI: http://eol.org/schema/terms/PopulationGroupSize
- Definition: Number of individuals in a group that spends the majority of their time in a 24 hour cycle together
show all records
5.5
prenatal development duration
- URI: http://eol.org/schema/terms/PrenatalDevelopmentDuration
- Definition: The duration of the development from fertilized, deposited or implanted egg to hatching/birth. Corresponds to egg incubation duration in oviparous animals and to gestation period duration in viviparous animals.
show all records
426 days
social system
- URI: http://eol.org/schema/terms/SocialSystem
- Definition: Description of the relationships among individuals within a population of organisms, including reproductive relationships (mating system), relationships within each sex, adult – young interactions, helpers and cooperation (group living).
show all records
solitary
- URI: http://eol.org/schema/terms/solitary
- Definition: Solitary animals are those that spend a majority of their lives without others of their species, with possible exceptions for mating and raising their young. Antonyms for a solitary animal include a social animal or a colonial animal.
- Attribution: https://www.definitions.net/definition/solitary+animal
show all records
trophic guild
- URI: http://eol.org/schema/terms/TrophicGuild
- Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
show all records
piscivore
- URI: http://www.wikidata.org/entity/Q1420208
- Definition: carnivorous animal which eats primarily fish.
show all records

Known occurrences, collected specimens and observations of Irrawaddy Dolphin. View this species on GBIF

2018 Simon J. Tonge cc-by-3.0