Heyer ronald (61 resultados)

Paperback. Condición: Good. As the Earth's number of species decreases, biologists have been concerned particularly with general decline in amphibian populations, viewing them as particularly sensitive indicators of the health of the environment. Yet one of the most difficult problems in conservation biology is the lack of baseline data against which to measure population changes. Measuring and Monitoring Biological Diversity is the first book to provide comprehensive coverage of standard methods for biodiversity sampling of amphibians, with information on analyzing and using data that will interest biologists in general. In this manual, nearly fifty herpetologists recommend ten standard sampling procedures for measuring and monitoring amphibian and many other populations. The contributors discuss each procedure, along with the circumstances for its appropriate use. In addition, they provide a detailed protocol for each procedure's implementation, a list of necessary equipment and personnel, and suggestions for analyzing the data. The data obtained using these standard methods are comparable across sites and through time and, as a result, are extremely useful for making decisions about habitat protection, sustained use, and restoration - decisions that are particularly relevant for threatened amphibian populations.…

Condición: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Paperback. Condición: Good. As the Earth's number of species decreases, biologists have been concerned particularly with general decline in amphibian populations, viewing them as particularly sensitive indicators of the health of the environment. Yet one of the most difficult problems in conservation biology is the lack of baseline data against which to measure population changes. Measuring and Monitoring Biological Diversity is the first book to provide comprehensive coverage of standard methods for biodiversity sampling of amphibians, with information on analyzing and using data that will interest biologists in general. In this manual, nearly fifty herpetologists recommend ten standard sampling procedures for measuring and monitoring amphibian and many other populations. The contributors discuss each procedure, along with the circumstances for its appropriate use. In addition, they provide a detailed protocol for each procedure's implementation, a list of necessary equipment and personnel, and suggestions for analyzing the data. The data obtained using these standard methods are comparable across sites and through time and, as a result, are extremely useful for making decisions about habitat protection, sustained use, and restoration - decisions that are particularly relevant for threatened amphibian populations.…

Paperback. Condición: Very Good. First Edition. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting.

Condición: acceptable. This copy has clearly been enjoyedâ"expect noticeable shelf wear and some minor creases to the cover. Binding is strong, and all pages are legible. May contain previous library markings or stamps.

Condición: good. Fast Free Shipping â" Good condition. It may show normal signs of use, such as light writing, highlighting, or library markings, but all pages are intact and the book is fully readable. A solid, complete copy that's ready to enjoy.

Condición: acceptable. Fairly worn, but readable and intact. If applicable: Dust jacket, disc or access code may not be included.

Condición: Very Good. Pages intact with possible writing/highlighting. Binding strong with minor wear. Dust jackets/supplements may not be included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Condición: Good. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Condición: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Paperback. Condición: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Pamphlet. Condición: Very Good. Vol 54, No 3, pp. 642-645, 4to, Extracted from orig vol, begins with title page, stapled & trimmed, thus is llike a pamphlet, VG.

Stapled. Condición: Poor. Fieldiana Zoology, Vol. 58(10): pp. 109-129. Damaged - someone cut the top 2" off the cover page, rest of the copy is clean with no defects.

paperback. Condición: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

paperback. Condición: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Condición: Good. Former library copy. Pages intact with minimal writing/highlighting. The binding may be loose and creased. Dust jackets/supplements are not included. Includes library markings. Stock photo provided. Product includes identifying sticker. Better World Books: Buy Books. Do Good.

Stapled. Condición: Near Fine. Proceedings, Vol. 89(5): pp. 581-592, 6 figs., 2 tab. No stamps or other defects. Clean.

Stapled. Condición: Very Good. . Vol. 7, No. 2, pp. 100-111, 3 figs., 4 tab.

Stapled. Condición: Near Fine. Contributions in Science, Vol. 251, pp. 1-50.

Stapled. Condición: Very Good. Contributions in Science, No. 253., pp. 1-46. Previous owners stamp on front cover. No other stamps or defects. Clean.

Stapled. Condición: Near Fine. Contributions to Zoology. Vol. 242, pp. 1-27, 3 figs., 14 tab. Previous owners stamps on front cover. Insides clean.

Stapled. Condición: Good. Smithsonian Contributions to Zoology, Vol. 233, pp. 1-29, 28 figs., 2 tab. Title and authors on front cover have circles drawn around them. No other marks or defects. A good copy.

Stapled. Condición: Very Good +. Smithsonian Contributions to Zoology, No. 199, pp. 1-55, 16 figs., 38 tab. Couple of stamps on front cover, rest is clean and unmarked.

Museum Bulletin. Condición: Fine. Contributions in Science. No. 251, pp. 1 - 50. No previous owners stamps or other marks. A clean nice copy.

Stapled. Condición: Very Good +. Smithsonian Contributions to Zoology, No. 199, pp. 1-55, 16 figs., 38 tab. A single staple in front cover, No other marks or defects.

Stapled. Condición: Very Good +. Smithsonian Contributions to Zoology, No. 402: pp. 1-42. No stamps or other defects. Clean.

Stapled. Condición: Near Fine. Contributions to Zoology. Vol. 242, pp. 1-27, 3 figs., 14 tab. No stamps or other defects. Clean.

Pamphlet. Condición: Very Good. Vol 55, No 3, pp. 651-656, 4to, Extracted from orig vol, begins with title page, trimmed & stapled, thus is like a pamphlet, VG.

Original Wraps. Condición: Very Good. First Edition. 55 pages, 16 figs., 38 tables. Smithsonian Contributions to Zoology, No. 199. Clean with no stamps or other marks, old mailing label on back cover. A very good copy of this work.

Original Wraps. Condición: Very Good. First Edition. 55 pages, 16 figs., 38 tables. Smithsonian Contributions to Zoology, No. 199. Clean with no stamps or other marks, old mailing label on back cover. A very good copy of this work.