Knowra Berlengas Berlengas Berlengas is a small Portuguese archipelago in the Atlantic Ocean, about 10 kilometers off the coast of Peniche. Its largest island, Berlenga Grande, is a protected nature reserve.
Berlenga Grande : The largest island in the Berlengas archipelago, known for its cliffs, caves, and historic fort. The archipelago’s main island holds its best-known landmarks and visitor facilities.
Berlengas granite : The ancient granite bedrock that forms much of the Berlengas islands. Its fractures and erosion shape the islands’ cliffs, caves, and sheltered coves.
Iberian Massif : An ancient geological region forming much of the western Iberian Peninsula. The Berlengas’ old rocks belong to the geological history of western Iberia.
Marine protected area : A defined sea area managed to conserve habitats, species, or ecological processes. Protection around the islands extends conservation beyond their land surfaces.
Biosphere reserve : A UNESCO-designated area promoting biodiversity conservation alongside sustainable human use. The Berlengas’ international recognition ties ecosystem protection to sustainable local activity.
Fort of São João Baptista : A 17th-century coastal fort built on a small islet near Berlenga Grande. Its dramatic setting links the islands’ defensive history with their rocky seascape.
Atlantic upwelling : The upward movement of cold, nutrient-rich deep water toward the ocean surface. Coastal upwelling helps sustain productive marine waters around the islands.
Variscan orogeny : A mountain-building episode that assembled parts of Europe during the late Paleozoic era. The archipelago’s granites formed amid tectonic processes associated with this ancient event.
Ecotourism : Travel focused on natural areas, conservation, and low-impact engagement with local environments. Visitor activities depend on the archipelago’s wildlife and scenic coastline.
Island biogeography : The study of how island area and isolation influence species richness and extinction. The islands offer a clear setting for examining isolation’s ecological effects.
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