UGA study reveals ecosystem-level consequences of frog extinctions
...ne, the algae were less productive at turning sunlight and nutrients into food for other members of the ecosystem. Without tadpoles swimming along the streambed
and stirring up the bottom, the amount of sediment in the stream increased by nearly 150 percent, blocking out sunlight that algae need to grow.
Healthy rivers needed to remove nitrogen
... water and porous stream beds is not conducive to the denitrification process.
A lot of streams in Oregon have subsurface water flowing beneath the streambed
through the gravel, she pointed out. This hyporheic flow intermixes with the river water and limits the anaerobic processes. It also underscores the i...
Habitat microstructure drives salamander metamorphosis
...quatic, juvenile form depends on the nature of the streambed
where they develop.
A study published today in t..., analysed the type, size and degree of sorting of streambed
sediments for 22 populations, 11 paedomorphic and ... found a strong negative correlation between small streambed
sediments and paedomorphosis.
Bonett and Chipp...
Freeze-dried mats of microbes awaken in Antarctic streambed
...ructures that can spread several meters across the streambed
The experiment began in the 1994 resea... team used sandbags to divert water from an active streambed
in the McMurdo Dry Valleys into the dry streambed,... in atmospheric carbon over decades, indicated the streambed
had been dry for about 20 years.
"After we dive...