Dams drain the life out of riverbanks

Article Abstract:

A Swedish study showed that rivers with hydroelectric dams and reservoirs supported up to 1/3 fewer plant species than unregulated rivers in the same regions. The results suggest it may be better to close down some systems to restore natural flow than to increase flow incrementally across the board.

Environmental aspects, Biological diversity, Biodiversity, Water resources development, Water resource development, Dams, Stream fauna, Stream animals

---

How males and females achieve X equality

Article Abstract:

Researchers have determined that the gene-regulating mechanism dosage compensation works in species as diverse as the fruit fly, nematode and mouse by altering the structure of chromatin, the material that gives chromosomes their coiled structure.

Chromatin, Sex determination, Genetic, Sex determination (Genetics), X chromosome, Dosage compensation (Genetics)

---

The trials and tribulations of cracking the prehistoric code

Article Abstract:

The rigor of ancient DNA research and the origins of Europeans and native Americans emerged as major topics at the Jul 1995 Ancient DNA II conference in Oxford, United Kingdom. Research reported on each of the topics is briefly discussed.

Conferences, meetings and seminars, DNA, Native Americans, Native North Americans, Origin, Population genetics, Europeans, Merriwether, Andrew, Sykes, Bryan

Similar abstracts:

• Abstracts: Salmon hotspots of the Skagit River. Butterflies and orchids of Spain
• Abstracts: Contaminant uranium phases and leaching at the Fernald site in Ohio. Comprehensive approach toward understanding element speciation and leaching behavior in municipal solid waste incineration electrostatic precipitator ash
• Abstracts: Faculty picks up the pieces of shattered research projects. Universities yank welcome mat for longtime foreign faculty
• Abstracts: When nutrients turn noxious. In the heat of the night: warmer nights may slowing tropical forest growth and raising carbon dioxide levels
• Abstracts: Bacterial virulence genes lead double life. Triggering bacterial virulence. How reptiles took wing

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.