Niche overlap and diet composition of three sympatric coastal dolphin species in the southwest Atlantic Ocean

Sympatric species are expected to differ in ecological requirements to minimize niche overlap and avoid competition. Here we assess the trophic interactions among three coexisting dolphin species from southern Brazil: the franciscana dolphin (Pontoporia blainvillei), the Guiana dolphin (Sotalia guia...

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Veröffentlicht in:	Marine mammal science 2021-01, Vol.37 (1), p.111-126
Hauptverfasser:	Teixeira, Clarissa R., Botta, Silvina, Daura‐Jorge, Fábio G., Pereira, Luiza B., Newsome, Seth D., Simões‐Lopes, Paulo C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal behavior Aquatic mammals Cetacea Collagen Diet Dolphins Dolphins & porpoises Fishing Foraging Foraging behavior Foraging habitats Isotopes isotopic niche Marine mammals Niche overlap Niches Pelagic fisheries Pontoporia blainvillei Prey Sotalia guianensis Species stable isotopes Sympatric populations Temporal variations trophic position Trophic relationships Tursiops truncatus gephyreus
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