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Food web expansion and contraction in response to changing environmental conditions
The analysis of food web properties under different environmental conditions informs us how the ecosystem functions. Here, Tunneyet al. use post-glacial lakes as model ecosystems to show how macroscopic patterns of food webs vary with changes in habitat and resource accessibility.
- Tyler D. Tunney
- , Kevin S. McCann
- & Brian J. Shuter
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River-margin habitat of Ardipithecus ramidus at Aramis, Ethiopia 4.4 million years ago
The habitat where early humans, hominins, lived provides information about the early part of human evolution. In this study, sedimentological and stable carbon and oxygen isotope data suggest homininArdipithecus ramiduslived in a river-margin forest in a wooded grassland landscape at Aramis, Ethiopia.
- M. Royhan Gani
- & Nahid D. Gani
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| Open AccessOceanic spawning ecology of freshwater eels in the western North Pacific
Little is known about the reproductive ecology of freshwater eels. In this article, the authors describe the capture of two species of eels together with eggs and newly hatched larvae, and suggest that spawning takes place during the new moon at shallower depths than previously thought.
- Katsumi Tsukamoto
- , Seinen Chow
- & Hideki Tanaka