[OANNES Foro] Tracking movements of petrels can provide a powerful tool to evaluate and assess the potential need for and location of protected oceanic areas

[Mario Cabrejos]

·         Diversity and Distributions 

·         First published: 31 May 2017 


DOI: 10.1111/ddi.12569  


 


It is the time for oceanic seabirds: Tracking year-round distribution of
gadfly petrels across the Atlantic Ocean


·         Raül Ramos, Nicholas Carlile, Jeremy Madeiros, Iván Ramírez, Vitor
H. Paiva, Herculano A. Dinis, Francis Zino, Manuel Biscoito, Gustavo R.
Leal, Leandro Bugoni, Patrick G. R. Jodice,Peter G. Ryan,Jacob
González-Solís


0.      

·         Abstract


Aim


Anthropogenic activities alter and constrain the structure of marine
ecosystems with implications for wide-ranging marine vertebrates. In spite
of the environmental importance of vast oceanic ecosystems, most
conservation efforts mainly focus on neritic areas. To identify relevant
oceanic areas for conservation, we assessed the year-round spatial
distribution and spatio-temporal overlap of eight truly oceanic seabird
species of gadfly petrels (Pterodroma spp.) inhabiting the Atlantic Ocean.

 


Location


Atlantic Ocean.

 


Methods


Using tracking data (mostly from geolocators), we examined year-round
distributions, the timing of life-cycle events, and marine habitat overlap
of eight gadfly petrel species that breed in the Atlantic Ocean.

 


Results


We compiled 125 year-round tracks. Movement strategies ranged from
non-migratory to long-distance migrant species and from species sharing a
common non-breeding area to species dispersing among multiple non-breeding
sites. Gadfly petrels occurred throughout the Atlantic Ocean but tended to
concentrate in subtropical regions. During the boreal summer, up to three
species overlapped spatio-temporally over a large area around the Azores
archipelago. During the austral summer, up to four species coincided in a
core area in subtropical waters around Cape Verde, and three species shared
habitat over two distinct areas off Brazil. The petrels used many national
Exclusive Economic Zones, although they also exploited offshore
international waters.

 


Main conclusions


Tracking movements of highly mobile vertebrates such as gadfly petrels can
provide a powerful tool to evaluate and assess the potential need for and
location of protected oceanic areas. As more multispecies, year-round data
sets are collected from wide-ranging vertebrates, researchers and managers
will have greater insight into the location of biodiversity hotspots. These
can subsequently inform and guide marine spatial planning efforts that
account for both conservation and sustainable use of resources such as
commercial fisheries.

 



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