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The subtidal bivalve Glycymeris glycymeris (L.) exhibits a high degree of respiratory independence in conditions of declining environmental oxygen tension. In contrast to other bivalves previously studied, the index of […]
The Galapagos archipelago has been colonized by two species of otariid, the fur seal, Arctocephalus galapagoensis, and the sea lion, Zalophus californianus wollebaeki. The former probably arrived from South America […]
Although several invertebrates have been introduced by Man into the Antarctic, no holometabolous insects have survived to colonize terrestrial habitats successfully. Data are presented on the survival of populations of […]