scholarly journals First successful breeding of Osprey Pandion haliaetus in Sardinia since 1968

2021 ◽  
Vol 90 (2) ◽  
Author(s):  
Alberto Fozzi ◽  
Roberto Fozzi ◽  
Ilaria Fozzi ◽  
Francesco Guillot ◽  
Gabriella Caria ◽  
...  
Keyword(s):  
Human Disturbance ◽  
First Record ◽  
Eastern Coast ◽  
Western Coast ◽  
Pandion Haliaetus ◽  
The North ◽  
North Western ◽  
Wintering Population

In 2020, a pair of ospreys nested in the north western coast of Sardinia and the successful fledging of two chicks is the first record in the island since 1968. The last reported breeding occurred in the eastern coast of the island and after that the species was considered extinct. Ospreys regularly migrate, estivate and winter in Sardinia, with a wintering population of about 40 individuals in 2018. This new breeding episode is not resulting from reintroduction projects and may be related to the dynamics of the close population of Corsica and to the exceptional absence of human disturbance along the coast due to COVID 19 lock-down.

scholarly journals On the verge of extinction: a survey of the mangrove finch Cactospiza heliobates and its habitat on the Galápagos Islands

Oryx ◽  
2004 ◽  
Vol 38 (2) ◽  
pp. 171-179 ◽  
Author(s):  
Michael Dvorak ◽  
Hernán Vargas ◽  
Birgit Fessl ◽  
Sabine Tebbich
Keyword(s):  
Habitat Degradation ◽  
Tree Height ◽  
Galapagos Islands ◽  
Eastern Coast ◽  
Western Coast ◽  
Mangrove Forests ◽  
Galápagos Islands ◽  
The North ◽  
North Western ◽  
Habitat Parameters

The Critically Endangered mangrove finch Cactospiza (=Camarhynchus) heliobates is now confined to Isabela Island in the Galápagos Islands and is exclusively found in mangrove forests. Formerly it occurred also on neighbouring Fernandina Island, but is apparently extinct there. The population size and ecology of the species was relatively unknown until 1994. We conducted surveys, habitat assessments and behavioural observations of the species between 1996 and 2000. Although Isabela Island has approximately 760 ha of mangrove forests, breeding was confirmed at only two sites, comprising 32 ha in total, on the north-western coast. Our estimate of the population in these two areas is 100 individuals. Additionally, 3–5 territories (which probably contained breeding individuals) were discovered on the south-eastern coast. A comparison of habitat parameters showed that tree height and amount of dead wood were significantly higher within than outside territories, and these are therefore likely to be important habitat components for this species. As considerable structural differences were detected between the two sites holding the main populations and all other mangrove stands on Isabela, it seems possible that the latter are sub-optimal habitat. We therefore conclude that one of the reasons for the very limited distribution of the species is habitat degradation caused by hitherto unknown factors.

Biochemical responses of the marine mussel Mytilus galloprovincialis to petrochemical environmental contamination along the North-western coast of Portugal

Chemosphere ◽  
2007 ◽  
Vol 66 (7) ◽  
pp. 1230-1242 ◽  
Author(s):  
Inês Lima ◽  
Susana M. Moreira ◽  
Jaime Rendón-Von Osten ◽  
Amadeu M.V.M. Soares ◽  
Lúcia Guilhermino
Keyword(s):  
Environmental Contamination ◽  
Mytilus Galloprovincialis ◽  
Western Coast ◽  
Marine Mussel ◽  
Biochemical Responses ◽  
The North ◽  
North Western

Little-known arctic species Montacuta spitzbergensis (Bivalvia: Montacutidae) from the north-western Pacific with notes on Montacuta substriata and Tellimya ferruginosa

2008 ◽  
Vol 88 (2) ◽  
pp. 347-356 ◽  
Author(s):  
Gennady M. Kamenev
Keyword(s):  
Sea Of Okhotsk ◽  
First Record ◽  
Western Pacific ◽  
The Arctic ◽  
Arctic Species ◽  
The North ◽  
The Pacific ◽  
The Pacific Ocean ◽  
North Western ◽  
North Western Pacific

An expanded description of a little-known arctic species Montacuta spitzbergensis from the Sea of Okhotsk with new data on its morphology, ecology and geographical distribution is given. This is the first record of M. spitzbergensis from the north-western Pacific. It differs from other species of Montacuta in its large (to 8.4 mm), elongate–ovate, thick shell with wide, slightly curved hinge plate, wide, short, and shallow resilifer, and weakly developed external ligament. This species occurs in the Arctic Ocean (Spitsbergen, Barents, Kara, Laptev and Chukchi Seas) and the Pacific Ocean (Sea of Okhotsk) at depths from 9 to 232 m at a bottom temperature from −1.62°C to +2.50°C. The hinge structure of the type species of the genera Montacuta and Tellimya is also discussed.

Demographics and length and weight relationships of commercially important sharks along the north-western coast of India

2018 ◽  
Vol 28 (6) ◽  
pp. 1374-1383 ◽  
Author(s):  
Alissa Barnes ◽  
Dipani Sutaria ◽  
Alastair V. Harry ◽  
Rima W. Jabado
Keyword(s):  
Western Coast ◽  
The North ◽  
Commercially Important ◽  
North Western
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