Download Freshwater ecology: concepts and environmental applications by Walter K. Dodds, Matt R Whiles PDF
By Walter K. Dodds, Matt R Whiles
Freshwater Ecology, moment Edition, is a wide, updated remedy of every little thing from the fundamental chemical and actual houses of water to complicated unifying innovations of the group ecology and atmosphere relationships as present in continental waters.
With forty% new and multiplied assurance, this article covers utilized and simple facets of limnology, now with extra emphasis on wetlands and reservoirs than within the past variation. It positive factors eighty new and up-to-date figures, together with a piece of colour plates, and 500 new and up to date references. The authors take an artificial method of ecological difficulties, instructing scholars tips to deal with the demanding situations confronted by way of modern aquatic scientists.
This textual content is designed for undergraduate scholars taking classes in Freshwater Ecology and Limnology; and introductory graduate scholars taking classes in Freshwater Ecology and Limnology.
- Expanded revision of Dodds' profitable text.
- New boxed sections supply extra complicated fabric in the introductory, modular structure of the 1st edition.
- Basic medical innovations and environmental purposes featured throughout.
- Added insurance of weather switch, surroundings functionality, hypertrophic habitats and secondary production.
- Expanded assurance of actual limnology, groundwater and wetland habitats.
- Expanded insurance of the poisonous results of prescribed drugs and endocrine disrupters as freshwater pollutants
- More on aquatic invertebrates, with more images and photographs of a broader diversity of organisms
- Expanded insurance of the useful roles of filterer feeding, scraping, and shredding organisms, and a brand new part on omnivores.
- Expanded appendix on regular statistical techniques.
- Supporting site with figures and tables - http://www.elsevierdirect.com/companion.jsp?ISBN=9780123747242
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Additional resources for Freshwater ecology: concepts and environmental applications of limnology
Example text
The bonds are seemingly traded among water molecules (like handing off a baton in a relay race) rather than broken and reformed at a later time. The true nature of a hydrogen bond is still not yet completely understood (Tokmakoff, 2007). , 2004). , 2009). The hydrophobic effect, the inability of some molecules to dissolve in water, is a function of the small size of the molecule and how the solutes interact with the hydrogen bonding. The exact mechanism behind this effect is still not well understood (Granick and Bae, 2008).
Global climate models must take heat of vaporization and heat capacity into account. Another important aspect of water is surface tension. The high surface tension of water results from hydrogen bonding, which pulls water into a tight surface at a gas–water interface. Several organisms, such as water striders, take advantage of this surface tension to walk on the surface of water. Some lizards (Basiliscus and Hydrosaurus) also run across the surface of water using the support of surface tension (Vogel, 1994).
Surface tension determines the size of the largest possible drop of water (Dodds, 2008). Most raindrops are 1 to 2 mm in diameter, but a few as big as 10 mm have been observed. Under microgravity (on the space shuttle) drops as large as 3 cm are stable. Finally, surface tension leads to capillary action, the ability of water to move up narrow tubes. Capillary action is central to forming the capillary fringe (the moist zone in sediments immediately above groundwater) because water creeps up the narrow spaces between sediment particles.