Migratory species, as a biological and ecological topic, are taxa whose life cycles include regular, cyclical, and predictable movements between distinct geographic regions, typically driven by seasonal variation in resource availability, breeding opportunities, or environmental conditions. These movements can occur across latitudinal, altitudinal, or aquatic gradients and span scales from local to transcontinental. Research on migratory species focuses on navigation mechanisms (e.g., celestial, geomagnetic, olfactory cues), energetics and physiology of long-distance movement, connectivity between populations across ranges, and the consequences of migration for gene flow, community structure, ecosystem processes, and vulnerability to anthropogenic pressures along migratory routes.
On April 20, 2023, a juvenile great white shark (Carcharodon carcharias) measuring approximately 210 cm and weighing between 80 and 90 kg was incidentally caught by local fishermen off the coast of the eastern peninsula within ...
Plants & Animals
Feb 10, 2026
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In her 1962 book, "Silent Spring," American biologist Rachel Carson revealed that DDT, a widely used pesticide at the time, was responsible for the mass death of birds, including the iconic bald eagle. One reason was that ...
Environment
Feb 9, 2026
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Accounts from early expeditions to the Seychelles more than 250 years ago described crocodiles as common along the coasts of the archipelago. But after the first settlers established a permanent presence in 1770, the Seychelles ...
Plants & Animals
Jan 28, 2026
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Monarch butterflies have always been remarkably resilient. Every fall, these delicate orange-and-black travelers set out on a journey so improbable it borders on myth, flying some three thousand kilometers from Canadian fields ...
Plants & Animals
Jan 23, 2026
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In the icy waters of Alaska's Bristol Bay, a new study reveals how a small population of beluga whales (Delphinapterus leucas) survive the long haul through a surprising strategy: they mate with multiple partners over several ...
Plants & Animals
Jan 21, 2026
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For years, researchers have tagged sharks in the world's oceans to learn where they go, how they migrate and where they feed. While these tags have given us a wealth of data about their lives, many questions still remain. ...
The limited range of marine protected areas (MPAs) offers reduced protection to vulnerable species such as the highly mobile silky shark (Carcharhinus falciformis). Because the survival of these sharks is threatened by commercial ...
Plants & Animals
Jan 12, 2026
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Researchers examined the diet and plastic ingestion of green sea turtles inhabiting waters around the Ogasawara Islands, Japan, and detected plastics in 7 of the 10 individuals studied. By integrating genetic, isotopic, and ...
Plants & Animals
Jan 11, 2026
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Many migratory species such as birds, bats, whales, and fish cross national borders to complete their lifecycle and need internationally coordinated action to protect them. The Convention on the Conservation of Migratory ...
Plants & Animals
Jan 6, 2026
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The distribution of Japanese eels (Anguilla japonica) at the northern edge of the species' range appears to be shaped by river water temperature, which is influenced by watershed geology and land use.
Plants & Animals
Dec 23, 2025
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