Download or read book A Stable Carbon and Nitrogen Isotope Study of Lake Food Webs in Canada s Boreal Plain written by Ellie E. Prepas and published by . This book was released on 2001 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Extended Specimen written by Michael S. Webster and published by CRC Press. This book was released on 2017-07-20 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Extended Specimen highlights the research potential for ornithological specimens, and is meant to encourage ornithologists poised to initiate a renaissance in collections-based ornithological research. Contributors illustrate how collections and specimens are used in novel ways by adopting emerging new technologies and analytical techniques. Case studies use museum specimens and emerging and non-traditional types of specimens, which are developing new methods for making biological collections more accessible and "usable" for ornithological researchers. Published in collaboration with and on behalf of The American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series documents the power of ornithological collections to address key research questions of global importance.

Download or read book JIRCAS Working Report written by and published by . This book was released on 2016 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishes and Forestry written by Thomas G. Northcote and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many species of fish occupying inland waters reside in watershedsthat were or still are surrounded by forests and are dependent inmajor ways upon such cover. The interactions between fishes andforests are complex, multifaceted, dynamic processes involving mostinland surface waters, forests, subsurface waters, geology andsoils, climate and its changes, and the biotic components of therelevant ecosystems. These interactions also include the aspects offorestry tied to human development, economics, population growthand even philosophies. Fishes and Forestry is truly a landmark publication. Theeditors, Professors Northcote and Hartman, have drawn together andcarefully edited chapters written by 56 scientists from around theworld, covering a vast wealth of information never before appearingwithin the covers of one book. Following an introductory chapter,this exceptional work is broadly divided into sections covering:the ecology of forests, streams, lakes and estuaries; fish biologyand ecology; forestry activities and their effects on aquaticsystems and fishes; 14 chapters covering examples of fish-forestryinteractions from around the world and a final section coveringmeans of effecting better fish-forestry interactions. Fishes and Forestry is an essential purchase for allthose involved in inland fisheries, forestry and their interaction,including fisheries scientists, fish biologists, ecologists,environmental scientists and forestry scientists. Libraries in alluniversities and research establishments where these subjects arestudied and taught should have several copies on their shelves.

Download or read book Canadian Journal of Zoology written by and published by . This book was released on 2013-07 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Food web Dynamics of Lake Ontario as Determined by Carbon and Nitrogen Stable Isotope Analysis written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Freshwater Research written by and published by . This book was released on 2015 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Archiv F r Hydrobiologie written by and published by . This book was released on 2006 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamental and Applied Limnology written by and published by . This book was released on 2007 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stable Isotope Analysis of the Laurentian Great Lakes Food Webs written by Stephanie Noel Schmidt and published by . This book was released on 2008 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Forest Research written by and published by . This book was released on 2002 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Affecting Stable Carbon and Nitrogen Isotopic Signatures in Food Webs of the Ste Marguerite River System Quebec Canada written by Véronique Trudeau and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Deeper understanding of the factors controlling stable isotopic signatures of aquatic organisms of all trophic levels is required if we are to properly use them in food web studies and as environmental indicators. The present field study conducted in the Ste. Marguerite River system, Quebec, compared periphyton signatures found in eight reaches (sections of a river/tributary) each composed of a series of sites with different flow regimes. Similar to patterns found in the laboratory, periphyton delta13C significantly decreased with increasing water velocity. In addition, periphyton biomass positively affected periphyton delta13C. Isotopic fractionation in favour of 12C by the periphyton communities likely leads to build-up of the heavier isotope in the boundary layer of algae. This study allows a better understanding of aquatic plant delta13C fluctuations. It also suggests how much variability in aquatic consumer delta13 C can be explained by water velocity in lotic systems." --

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2004 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Understanding the Effects of Consumers and Light on Stream Food Webs Using Stable Isotope Techniques written by Sarah Michelle Collins and published by . This book was released on 2015 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: In headwater streams that are heavily shaded by surrounding forests, primary production is often low and inputs of particulate and dissolved organic carbon from terrestrial environments are important resources in food webs. Stable isotope methods are useful for quantifying food web fluxes of different carbon sources but data are frequently difficult to interpret. Here, I developed novel stable isotope techniques to study the role of terrestrial energy subsidies in stream food webs in Trinidad and Tobago and the Adirondack region of New York. Specifically, I sought to determine the importance of carbon sources from terrestrial environments versus in-stream primary production in streams with varying light availability and fish communities. I compared natural canopy streams to streams with experimentally thinned canopies using a novel carbon and nitrogen dual isotope tracer technique. Comparing data from 13 C-acetate tracers, which are assimilated only by heterotrophic bacteria, and 15N- ammonium tracers, which are assimilated by both heterotrophs and autotrophs, allowed me to evaluate the relative importance of terrestrial carbon inputs and heterotrophic pathways. I also compared food webs in Trinidad and Adirondack streams along a natural gradient of canopy cover using stable isotopes of hydrogen, which indicated how much terrestrial organic matter was assimilated by consumers. In the Adirondacks, terrestrial carbon subsidies and heterotrophic bacteria were important resources for consumers, but the amount of bacterial carbon assimilated by invertebrates declined when light availability and primary production were experimentally increased. Fish introductions and light availability both influenced food webs in Trinidad streams. There were increased fluxes of carbon and nitrogen to consumers in streams with high light. Effects of fish introduction varied by consumer taxon, with strong positive effects of fish on filter-feeding invertebrates, and weaker positive effects of fish on grazer invertebrates. In comparative studies across light gradients, most consumer taxa were flexible in the amount of terrestrial carbon they assimilated, with higher reliance on terrestrial subsidies in streams with high canopy cover than in larger streams with less canopy cover. Overall, these results suggest that the light environment can have a strong influence on the role of terrestrial subsidies in streams.

Download or read book Current and Selected Bibliographies on Benthic Biology written by and published by . This book was released on 2002 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Carbon Isotope Signatures and Spatial Scales of Energy Flow in Food Webs Supporting Salmonids in Northern California Rivers written by Mary E. Power and published by . This book was released on 2001 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Stable Carbon Isotope Study of the Food Web in Bayboro Harbor St Petersburg Florida written by Margarita E. Mangini and published by . This book was released on 1983 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: