Brussard (33 resultados)

Paperback. Condición: New. Ecology of Willow Flycatchers (Empidonax traillii) in the Sierra Nevada, California: Effects of Meadow Characteristics and Weather on Demographics.

Pamphlet. Condición: Very Good. Vol 51, No 5, pp. 880-885, 4to, Extracted from Orig Vol, Thus begins with title page,trimmed & stapled pamphlet, else VG.

Pamphlet. Condición: Very Good. Vol 51, No 1, pp. 119-129, Extracted from orig vol, thus begins with title page, trimmed & stapled pamphlet, else VG.

Condición: Poor. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. Clean from markings. In poor condition, suitable as a reading copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,750grams, ISBN:038790378X.…

Paperback. Condición: New. Ecology of Willow Flycatchers (Empidonax traillii) in the Sierra Nevada, California: Effects of Meadow Characteristics and Weather on Demographics Abstract: Population declines in songbirds are often attributed to regional habitat loss and fragmentation caused by landuse practices, which might be further aggravated by climate change. These concerns are particularly evident in the Intermountain West, where riparian areas are considered a priority for conservation because of predicted reductions in winter precipitation and increases in spring temperatures. These climatic changes might increase the susceptibility of species reliant on riparian areas to regional extirpation from loss of habitat. The Willow Flycatcher (Empidonax traillii) is a California species of concern because of precipitous population declines in the past three decades. In 1997, we established a longterm research program to determine population demographics and the effects of weather events and regionalscale meadow distribution and vegetative structure on nesting success of Willow Flycatchers. We monitored territory establishment and reproductive success of 786 territories and 850 nests in meadows distributed south and north of Lake Tahoe, California, from 1997 to 2008. We documented near extirpation of Willow Flycatchers south of the lake and a declining trend in the number of territories north of the lake. Latespring storms and low temperatures at the start of the breeding season reduced the length of the breeding season, affecting the ability of Willow Flycatchers to renest. Nest age better predicted nest survival than meadowscale landscape and weather variables. Although weather parameters were not significant as a direct influence on nest survival analyses, our results suggested a weak negative relationship with increased snowfall. For our nestscale model evaluation, overnest vegetation concealment increased nest survival in large meadows but had little effect on nest survival in smaller meadows. Evidence from our dispersal data implied that Willow Flycatchers in our study regions had high natal and breedingsite fidelity, which suggests that recruitment across these study regions might be limited. Given that we observed a declining population trend in the South Tahoe region, our results suggest that populations in the South Tahoe region may not rebound. Compared with a reference site that we established in 2003, where the population of Willow Flycatchers appeared to be stable, reproductive success was lower at our longterm sites. We suggest that differences in breedingseason length and the quality of habitat in meadows contributed to lower reproductive success and to the observed population declines.(Ecologia de Empidonax trailli en la Sierra Nevada, California: Efectos de las Caracteristicas de las Praderas y del Clima en la Demografia).…

Soft Cover. Condición: Very Good. First Edition. Top right corner of front cover has former ownership stamp of evolutionary biologist Ernst Mayr, who pencilled a check mark in the top left corner; the stray pencil line at bottom of back cover was likely by Dr. Mayr as well; volume has minor wear, including a very short closed tear at top of spine; spine and edges of binding are sunned; tight, text clean. Paginated 513-698, vi p., illustrated. Interesting provenance. [br 31]. …

Soft cover. Condición: Very Good. 1st Edition. Top right corner of front cover has former ownership stamp of evolutionary biologist Ernst Mayr, who pencilled a check mark in the top left corner; volume has minor wear; spine and edges of binding are sunned; tight, text clean. Paginated 337-511, illustrated. Interesting provenance. [br 26]. …

paperback. Condición: Very Good. Softcover in overall very good condition. Cover is glossy and clean. Mild signs of use along spine. Issue 75. 32 pages. B&W throughout. We ship every day from a real neighborhood bookstore. This description is written by an actual person, who is holding the book in front of them to make sure it's properly described.…

hardcover. Condición: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Hardcover. Condición: UsedVeryGood. Hardcover; Proceedings in Life Sciences; Springer Verlag; light fading, she lf wear to exterior; former owner's stamping on front endpaper; binding sli ghtly cocked; otherwise in very good condition with clean text.

13 pp., 6 figs, gr. 8.

829 S. mit zahlreichen Abbildungen, (829 pp. with a lot of illustrations), 0444814906 Sprache: Englisch Gewicht in Gramm: 1500 Groß 8°, (large 8vo), Original-Pappband, sehr gutes Exemplar, (hard cover, fine copy).

Hardcover. Condición: Good. Dust Jacket NOT present. CD WILL BE MISSING. . SHIPS FROM MULTIPLE LOCATIONS. book.

Hardcover. Condición: Sehr gut. Zustand: ausgestempeltes Bibliotheksexemplar, AKZEPTABLER Zustand. HC1-459-3/8-00496080 Sprache: Englisch Gewicht in Gramm: 669.

Condición: New.

Condición: New.

Condición: New. In English.

Condición: New.

Condición: New. pp. 260.

Condición: As New. Unread book in perfect condition.

Paperback. Condición: Like New. LIKE NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Condición: As New. Unread book in perfect condition.

Condición: gut. 1993. Soil Structure Soil Biota Interrelationships. International Workshop on Methods of Research on Soil Structure Soil Biota Interrelationships, held at the International Agricultural Centre, Wagneningen, The Netherlands, 24-28 November 1991. In englischer Sprache. pages.

Hardcover. Condición: Good. 1st Edition. 247 p; 29 Fig. [PROCEEDINGS IN LIFE SCIENCES].

Condición: Used: Like New. LIVRE A L?ETAT DE NEUF. EXPEDIE SOUS 3 JOURS OUVRES. NUMERO DE SUIVI COMMUNIQUE AVANT ENVOI, EMBALLAGE RENFORCE. EAN:9782409028502.

New York, Heidelberg; Berlin: Springer-Verlag, (1978). Cloth, illustrated, 245 pp. E.O. Wilson s ink ownership stamp on the fore-edge. Papers from a symposium by the Society for the Study of Evolution held at Ithaca College in 1977. A Fine copy.

LeatherBound. Condición: New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Reprinted from 1920 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set and contains approximately 40 pages. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: French.…

Condición: new. Questo è un articolo print on demand.

Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Traditionally, studies in ecological genetics have involved both field observations and laboratory genetic analyses. Comparisons and cor relations between these two kinds of data have provided valuable in formation on the genetic strategies behind the evolutionary adapta tions of species and their component local populations. Indeed, much of our current understanding of the dynamics of evolutionary pro cesses has come fro~ syntheses of ecological and genetic information. Since the recent discovery of abundant markers in the form of protein polymorphisms, scientific interest in the connections between genetics and ecology has quickened considerably. This volume contains the proceedings of the Society for the Study of Evolution's symposium, Genetics and Ecology: The Interface, held at Ithaca College, Ithaca, New York, June 12-15, 1977. This particular topic was selected because of a general feeling that a significant integration of genetics and ecology has developed in the last decade or so. Host ecologists no longer believe that each species has a characteristic and constant birth, death, and develonment rate, habitat preference, and so on, but that these para~eters vary a~ong populations and are at least partially under genetic control and sub ject to natural selection. Similarly, few population geneticists still view any species as infinitely large, panmictic, constant in numbers, and distributed evenly throughout its range. 260 pp. Englisch.…

Taschenbuch. Condición: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Traditionally, studies in ecological genetics have involved both field observations and laboratory genetic analyses. Comparisons and cor relations between these two kinds of data have provided valuable in formation on the genetic strategies behind the evolutionary adapta tions of species and their component local populations. Indeed, much of our current understanding of the dynamics of evolutionary pro cesses has come fro~ syntheses of ecological and genetic information. Since the recent discovery of abundant markers in the form of protein polymorphisms, scientific interest in the connections between genetics and ecology has quickened considerably. This volume contains the proceedings of the Society for the Study of Evolution's symposium, Genetics and Ecology: The Interface, held at Ithaca College, Ithaca, New York, June 12-15, 1977. This particular topic was selected because of a general feeling that a significant integration of genetics and ecology has developed in the last decade or so. Host ecologists no longer believe that each species has a characteristic and constant birth, death, and develonment rate, habitat preference, and so on, but that these para~eters vary a~ong populations and are at least partially under genetic control and sub ject to natural selection. Similarly, few population geneticists still view any species as infinitely large, panmictic, constant in numbers, and distributed evenly throughout its range.…