Brian Moss – författare

Ponds and small lakes support an extremely rich biodiversity of fascinating organisms. Many people have tried pond-dipping and encountered a few unfamiliar creatures, such as dragonfly nymphs and caddisfly larvae. However, there is a far richer world of microscopic organisms, such as diatoms, desmids and rotifers, which is revealed in this book. Anyone with access to a microscope can open up this hidden dimension. Identification keys are provided so that readers can identify, explore and study this microscopic world. There are also many suggestions of ways in which readers can then make original contributions to our knowledge and understanding of pond ecology.The book not only explores the fascinating world of the creatures within ponds and their interactions, but also explains the many ways in which ponds are important in human affairs. Ponds are being lost around the world, but they are a key part of a system that maintains our climate. In the face of climate change, it has never been more important to understand the ecology of ponds.Includes keys to: A – Traditional key to kingdoms of organisms; B – Contemporary key to kingdoms of organisms; C – Pragmatic key to groups of microorganisms; D – Algae visible, at least en masse, to the naked eye; E – Periphyton, both attached to surfaces and free living; F - Protozoa; G- Freshwater invertebrates and; H – Common phytoplankton genera in ponds.

This book focuses on a selection of articles presented during the 6th International Shallow Lakes Congress, held in Punta del Este, Uruguay, in November 2008. Both the congress and the articles included in this volume raise a number of key issues. The expansion of research on shallow lakes around the world poses questions on the general validity of the theoretical framework developed in cool and cold temperate shallow lakes. In particular, comparisons along latitudinal gradients in Europe and America have shown that the functioning of lakes differs with the predominant climate and with their sensitivity to water level changes. This may have profound practical consequences for lake management and rehabilitation strategies. The results of controlled experiments and space-for-time (including latitudinal gradient) studies suggest that eutrophication symptoms likely become worse with an increase in mean temperature caused by climate warming. Consequently, the vulnerability of these ecosystems to external impacts such as changes in water level, arrival or introduction of exotic species, increase in nutrient loading and agrochemicals, will likely increase. It thus seems clear that nutrient inputs should be lowered to a much greater extent than previously thought in order to keep lakes’ diversity and conservation value, as well as to increase the chances of maintaining the still pristine lakes in a clear-water, high-biodiversity state.