[MARMAM] New article: Common dolphins in the Gulf of Corinth are Critically Endangered

Nina Santostasi nina.santostasi at uniroma1.it
Mon Nov 12 22:12:24 PST 2018

Dear colleagues,

please find below the link to our recently published paper regarding the
conservation status assessment of a Critically Endangered subpopulation of
common dolphins in the Gulf of Corinth, Greece.


Regional populations (“subpopulations”) of globally abundant species can be
exposed to human impacts that threaten their viability. Given the value of
cetacean subpopulations as evolutionary significant units, keystone and
umbrella species, it is important to assess their conservation status
separately and propose area‐specific conservation measures.
We used a threat assessment process and applied IUCN Red List criteria to a
regional population of common dolphins Delphinus delphis in the
semi‐enclosed Gulf of Corinth, Greece. We compiled subpopulation‐specific
information about abundance and trends, estimated the geographic range of
the subpopulation (area of occupancy and extent of occurrence), and
calculated the probability of extinction through stochastic modelling.
The subpopulation qualified as Endangered according to criteria A
(population size reduction over three generations) and B (geographic
range), and as Critically Endangered under criteria C (population size and
decline) and D (very small or restricted population). The probability of
extinction was estimated to be ≥50% in three generations, qualifying the
subpopulation as Critically Endangered under criterion E (quantitative
analysis). We concluded that the subpopulation should be classified as
Critically Endangered.
Considering the high extinction risk faced by common dolphins in the Gulf
of Corinth, we recommend that: (a) immediate action is taken to mitigate
anthropogenic activities known or suspected to have a negative impact on
cetaceans in the area (particularly commercial fishing); and (b) a marine
protected area is established in the Gulf of Corinth as a management tool
for enforcing conservation action and facilitating the recovery of common


Nina Santostasi, Silvia Bonizzoni, Olivier Gimenez, Lavinia Eddy, Giovanni

Nina L. Santostasi
Sapienza University of Rome, Italy
Centre d'Ecologie Fonctionnelle et Evolutive, CNRS, Montpellier, France
Ph.D. candidate
"*Modelling population dynamics in presence of hybridization*"
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