[MARMAM] New publication on Sea Birds and Guiana Dolphin in the Gulf of Venezuela
hbarriosg at gmail.com
Sun Jan 24 08:41:14 PST 2016
We are pleased to share with you our new research article entitled:
"Seabirds and Sotalia guianensis associations at the southern Gulf of
The paper can be download in the following link:
The original paper is in Spanish, but further questions can be formulated
in English to the authors.
Associations between seabirds and marine mammals are a common event in all
seas and oceans of the world. Several authors have called these
associations as commensal, opportunistic or parasitic relationships,
depending on the result of such interaction effect on one or two related
species. In order to describe the presence of associations among Sotalia
guianensis and sea birds in the southern region of the Gulf of Venezuela,
from June 2011 to June 2012, observations of groups of this cetacean and
seabirds were made on mobile platforms, using the “group follow” protocol
following an “Ad libitum sampling”. All sightings were geo-referenced and
annotations about the occurrence or non-association with seabirds, species
and number of birds present at the association were made. During the
sampling period 721 sightings were recorded, of which 197 events of
aggregation between seabirds and S. guianensis were registered. The
resident seabird species most frequently presented at each event associated
with S. guianensis were: Fregata magnificens (49%; n=98), Phalacrocorax
brasilianus (29.5%; n=59) and Pelecanus occidentalis (22.5%; n=45); being
Thalasseus maxima (71%; n=142) the only migratory species. During all
sampling sightings was observed only one interaction between a swallow
species (Riparia riparia) and Sotalia guianensis. These bird-dolphin
associations were only observed when a notable congregation of fish was
registered and a dolphin or a group of dolphins were performing any
activity with large movements of water that allowed birds to find and
locate their preys with low energy cost.
Key words. Seabirds, Sotalia guianensis, Navigation channel, Gulf of
Espinoza-Rodríguez, N., Carrasquero, J., De Turris-Morales, K.,
Delgado-Ortega, G., & Barrios-Garrido, H. (2015). ASOCIACIONES ENTRE AVES
MARINAS Y SOTALIA GUIANENSIS EN EL SUR DEL GOLFO DE VENEZUELA. *Caldasia*,
*37*(2), 309-318. doi: http://dx.doi.org/10.15446/caldasia.v37n2.54381.
PhD Candidate- Candidato a Doctor.
College of Marine & Environmental Sciences
James Cook University, Townsville, QLD 4811 Australia.
*GTTM-GV: 18 años. **Acompañando a nuestras comunidades indígenas hacia la
conservación integral. *
Magister en Ecologia Aplicada.
Master in Applied Ecology.
IUCN/SSC Marine Turtle Specialist Group Member.
International Sea Turtle Society Member.
Laboratorio de Ecologia General
Departamento de Biologia
Facultad Experimental de Ciencias
La Universidad del Zulia
Grupo de Trabajo en Tortugas Marinas del Golfo de Venezuela (GTTM-GV)
Presidente Fundador-President (Founder)
Centro de Modelado Cientifico (CMC)
Townsville, Queensland, Australia.
alt.email: hector.barriosgarrido at my.jcu.edu.au
NO IMPRIMAS ESTE CORREO SI NO ES NECESARIO.
CUIDEMOS A LOS ÁRBOLES.
CUIDEMOS EL PLANETA.
VENZAMOS AL CAMBIO CLIMÁTICO.
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