Driver cooper (30 resultados)

Autor: 
Refinar con la Búsqueda avanzada

Filtrar la búsqueda

  • Libros (30)

a

Intervalo de precios personalizado (EUR)

a

  • Idioma: Inglés

    Editorial: Agora, 1986

    0945332033 / 9780945332039

    • Tapa blanda

    Librería: HPB-Diamond, Dallas, TX, Estados Unidos de AmericaHPB-Diamond

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Bueno

    EUR 2,98

    Envío por EUR 3,34 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: 1 disponible

    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. Ray Driver (ilustrador).

  • Idioma: Inglés

    Editorial: Agora Inc.- William R. Bonner, 1986, 1986

    0945332033 / 9780945332039

    • Tapa blanda

    Librería: Virtuous Volumes et al., Wilson, WI, Estados Unidos de AmericaVirtuous Volumes et al.

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Bueno

    EUR 13,76

    Envío por EUR 4,01 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: 1 disponible

    Soft Cover. Condición: Very Good+. First. Soft Cover. Very Good+. First? 4to - over 9¾" - 12" tall. ISBN:0-945332-03-3. Lightly edgeworn. "All the best things the world has to offer.over 300 pages of things to do.places to go.finest food, hotels, tours, resorts." (?) 298 pages. Ray Driver, Illustrator (ilustrador). …

  • Editorial: Waverly Press, Baltimore, 1953

    • Tapa blanda

    Librería: Browse Awhile Books, Tipp City, OH, Estados Unidos de AmericaBrowse Awhile Books

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Bueno

    EUR 13,76

    Envío por EUR 6,24 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: 1 disponible

    Añadir al carrito

    Soft Cover. Condición: Very Good. Indiana University Publications in Anthropology and Linguistics Memoir 9 of the International Journal of American Linguistics. 30pp. Map in rear pocket. Owner's name stamped on front cover. Size: Quarto.

  • Idioma: Inglés

    Editorial: Plenum Press, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: Anybook.com, Lincoln, Reino UnidoAnybook.com

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Aceptable

    EUR 21,70

    Envío por EUR 15,53 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: 1 disponible

    Condición: Good. Volume 19. 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 good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,600grams, ISBN:0306420066.…

  • Idioma: Inglés

    Editorial: Briza Publications,South Africa 2016-09-05, 2016

    1920146105 / 9781920146108

    • Tapa dura

    Librería: Chiron Media, Wallingford, Reino UnidoChiron Media

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 43,04

    Envío por EUR 11,90 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: 13 disponibles

    Hardcover. Condición: New. Brand new book, sourced directly from publisher. Dispatch time is 3-4 days from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely.

  • Idioma: Inglés

    Editorial: Briza Publications,South Africa, 2016

    1920146105 / 9781920146108

    • Tapa dura
    • Primera edición

    Librería: Chapter 1, Johannesburg, GAU, Sur AfricaChapter 1

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Excelente

    EUR 38,54

    Envío por EUR 25,00 
    Se envía de Sur Africa a Estados Unidos de America

    Cantidad disponible: 1 disponible

    Hardcover. Condición: Fine. No Jacket. First Edition. Heavy book may require extra postage unless posted within South Africa. Publication of 384 pages. The Pictionary boards are in fine condition. Internally, there are no markings or inscriptions, and the pages are immaculately clean and complete. The binding is excellent. GK. Our orders are shipped using tracked courier delivery services. …

  • Idioma: Inglés

    Editorial: Plenum Pub Corp, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: Second Chance Books, Independence, OR, Estados Unidos de AmericaSecond Chance Books

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Bueno

    EUR 91,75

    Envío por EUR 4,01 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: 1 disponible

    Hardcover. Condición: Very Good. Estado de la sobrecubierta: Very Good. Back cover lightly rubbed, jacket has some light edge wear and rubbing and one small tear. Book.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: GreatBookPrices, Columbia, MD, Estados Unidos de AmericaGreatBookPrices

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 118,68

    Envío por EUR 2,35 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: New.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: California Books, Miami, FL, Estados Unidos de AmericaCalifornia Books

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 121,11

     Gastos de envío gratis 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: New.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: GreatBookPrices, Columbia, MD, Estados Unidos de AmericaGreatBookPrices

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Como Nuevo

    EUR 125,16

    Envío por EUR 2,35 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: As New. Unread book in perfect condition.

  • Idioma: Inglés

    Editorial: Springer, 2013

    1475796609 / 9781475796605

    • Tapa blanda

    Librería: GreatBookPrices, Columbia, MD, Estados Unidos de AmericaGreatBookPrices

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Como Nuevo

    EUR 126,30

    Envío por EUR 2,35 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: 15 disponibles

    Condición: As New. Unread book in perfect condition.

  • Idioma: Inglés

    Editorial: Springer, 2013

    1475796609 / 9781475796605

    • Tapa blanda

    Librería: GreatBookPrices, Columbia, MD, Estados Unidos de AmericaGreatBookPrices

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 134,77

    Envío por EUR 2,35 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: 15 disponibles

    Condición: New.

  • Idioma: Inglés

    Editorial: Springer, 2013

    1475796609 / 9781475796605

    • Tapa blanda

    Librería: Ria Christie Collections, Uxbridge, Reino UnidoRia Christie Collections

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 130,92

    Envío por EUR 11,16 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: New. In English.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: GreatBookPricesUK, Woodford Green, Reino UnidoGreatBookPricesUK

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 123,62

    Envío por EUR 17,87 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: New.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: Ria Christie Collections, Uxbridge, Reino UnidoRia Christie Collections

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 130,92

    Envío por EUR 13,45 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: New. In English.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: GreatBookPricesUK, Woodford Green, Reino UnidoGreatBookPricesUK

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Usado - Como Nuevo

    EUR 131,78

    Envío por EUR 17,87 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: As New. Unread book in perfect condition.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: Books Puddle, Woodside, NY, Estados Unidos de AmericaBooks Puddle

    Vendedor de 4 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 160,68

    Envío por EUR 3,55 
    Se envía dentro de Estados Unidos de America

    Cantidad disponible: 4 disponibles

    Condición: New. pp. 260.

  • Idioma: Inglés

    Editorial: Springer, 2013

    1475796609 / 9781475796605

    • Tapa blanda

    Librería: AHA-BUCH GmbH, Einbeck, AlemaniaAHA-BUCH GmbH

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 124,85

    Envío por EUR 35,00 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 1 disponible

    Taschenbuch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so that the selection of plants by insect herbivores must depend on the relative toxicity of secondary compounds. This led, rather gradually, to a host of papers on plant-herbivore interactions. More or less at the same time, insect physiologists and ecologists were starting to realise the importance of chemical communi cation systems in determining sexual and other characteristics of insect behaviour. Nine years ago the Phytochemical Society of North America published their Symposium on 'Biochemical Interaction Between Plants and Insects' in which the plant apparency theory was expounded by both Paul Feeny and Rex Cates and David Rhoades. This stated that plants which are apparent usually contain secondary components which reduce digestibility (tannins and lignins) while ephemeral plants have more toxic, and perhaps less costly, compounds such as alkaloids. These papers stimulated much research on biochemical ecology. The recognition of the importance of the biochemical factors in such interactions is not just of scientific interest. It is vitally important in programs for the production of new varieties of cultivated plants, especially in tropical countries where about one-third or more of the crops are lost to predation or disease.…

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura

    Librería: AHA-BUCH GmbH, Einbeck, AlemaniaAHA-BUCH GmbH

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 124,85

    Envío por EUR 35,00 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 1 disponible

    Buch. Condición: Neu. Druck auf Anfrage Neuware - Printed after ordering - Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so that the selection of plants by insect herbivores must depend on the relative toxicity of secondary compounds. This led, rather gradually, to a host of papers on plant-herbivore interactions. More or less at the same time, insect physiologists and ecologists were starting to realise the importance of chemical communi cation systems in determining sexual and other characteristics of insect behaviour. Nine years ago the Phytochemical Society of North America published their Symposium on 'Biochemical Interaction Between Plants and Insects' in which the plant apparency theory was expounded by both Paul Feeny and Rex Cates and David Rhoades. This stated that plants which are apparent usually contain secondary components which reduce digestibility (tannins and lignins) while ephemeral plants have more toxic, and perhaps less costly, compounds such as alkaloids. These papers stimulated much research on biochemical ecology. The recognition of the importance of the biochemical factors in such interactions is not just of scientific interest. It is vitally important in programs for the production of new varieties of cultivated plants, especially in tropical countries where about one-third or more of the crops are lost to predation or disease.…

  • Idioma: Inglés

    Editorial: Springer, 2013

    1475796609 / 9781475796605

    • Tapa blanda

    Librería: Revaluation Books, Exeter, Reino UnidoRevaluation Books

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 156,68

    Envío por EUR 11,91 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: 2 disponibles

    Paperback. Condición: Brand New. reprint edition. 256 pages. 9.02x5.98x0.59 inches. In Stock.

  • Condición: Usado - Muy bueno

    EUR 155,00

    Envío por EUR 42,00 
    Se envía de Francia a Estados Unidos de America

    Cantidad disponible: 1 disponible

    Añadir al carrito

    Couverture souple. Condición: bon. R320073658: 1824. In-4. Broché. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 66 pages - Couverture de substitution. . . . Classification Dewey : 340-Droit.

  • Idioma: Inglés

    Editorial: Springer, 2013

    1475796609 / 9781475796605

    • Tapa blanda
    • Impresión bajo demanda

    Librería: Brook Bookstore On Demand, Napoli, NA, ItaliaBrook Bookstore On Demand

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 86,24

    Envío por EUR 5,50 
    Se envía de Italia a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

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

  • Idioma: Inglés

    Editorial: Springer, Springer Apr 2013, 2013

    1475796609 / 9781475796605

    • Tapa blanda
    • Impresión bajo demanda

    Librería: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, AlemaniaBuchWeltWeit Ludwig Meier e.K.

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 106,99

    Envío por EUR 23,00 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 2 disponibles

    Taschenbuch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so that the selection of plants by insect herbivores must depend on the relative toxicity of secondary compounds. This led, rather gradually, to a host of papers on plant-herbivore interactions. More or less at the same time, insect physiologists and ecologists were starting to realise the importance of chemical communi cation systems in determining sexual and other characteristics of insect behaviour. Nine years ago the Phytochemical Society of North America published their Symposium on 'Biochemical Interaction Between Plants and Insects' in which the plant apparency theory was expounded by both Paul Feeny and Rex Cates and David Rhoades. This stated that plants which are apparent usually contain secondary components which reduce digestibility (tannins and lignins) while ephemeral plants have more toxic, and perhaps less costly, compounds such as alkaloids. These papers stimulated much research on biochemical ecology. The recognition of the importance of the biochemical factors in such interactions is not just of scientific interest. It is vitally important in programs for the production of new varieties of cultivated plants, especially in tropical countries where about one-third or more of the crops are lost to predation or disease. 260 pp. Englisch.…

  • Idioma: Inglés

    Editorial: Springer US, 1985

    0306420066 / 9780306420061

    • Tapa dura
    • Impresión bajo demanda

    Librería: moluna, Greven, Alemaniamoluna

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 92,27

    Envío por EUR 48,99 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Gebunden. Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so tha. …

  • Idioma: Inglés

    Editorial: Springer US, 2013

    1475796609 / 9781475796605

    • Tapa blanda
    • Impresión bajo demanda

    Librería: moluna, Greven, Alemaniamoluna

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 92,27

    Envío por EUR 48,99 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: Más de 20 disponibles

    Condición: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so tha.…

  • Idioma: Inglés

    Editorial: Springer, Springer Apr 2013, 2013

    1475796609 / 9781475796605

    • Tapa blanda
    • Impresión bajo demanda

    Librería: buchversandmimpf2000, Emtmannsberg, BAYE, Alemaniabuchversandmimpf2000

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 106,99

    Envío por EUR 60,00 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 1 disponible

    Taschenbuch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so that the selection of plants by insect herbivores must depend on the relative toxicity of secondary compounds. This led, rather gradually, to a host of papers on plant-herbivore interactions. More or less at the same time, insect physiologists and ecologists were starting to realise the importance of chemical communi cation systems in determining sexual and other characteristics of insect behaviour. Nine years ago the Phytochemical Society of North America published their Symposium on 'Biochemical Interaction Between Plants and Insects' in which the plant apparency theory was expounded by both Paul Feeny and Rex Cates and David Rhoades. This stated that plants which are apparent usually contain secondary components which reduce digestibility (tannins and lignins) while ephemeral plants have more toxic, and perhaps less costly, compounds such as alkaloids. These papers stimulated much research on biochemical ecology. The recognition of the importance of the biochemical factors in such interactions is not just of scientific interest. It is vitally important in programs for the production of new varieties of cultivated plants, especially in tropical countries where about one-third or more of the crops are lost to predation or disease.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 260 pp. Englisch.…

  • Idioma: Inglés

    Editorial: Springer US, Springer US Mai 1985, 1985

    0306420066 / 9780306420061

    • Tapa dura
    • Impresión bajo demanda

    Librería: buchversandmimpf2000, Emtmannsberg, BAYE, Alemaniabuchversandmimpf2000

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 106,99

    Envío por EUR 60,00 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 1 disponible

    Buch. Condición: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so that the selection of plants by insect herbivores must depend on the relative toxicity of secondary compounds. This led, rather gradually, to a host of papers on plant-herbivore interactions. More or less at the same time, insect physiologists and ecologists were starting to realise the importance of chemical communi cation systems in determining sexual and other characteristics of insect behaviour. Nine years ago the Phytochemical Society of North America published their Symposium on 'Biochemical Interaction Between Plants and Insects' in which the plant apparency theory was expounded by both Paul Feeny and Rex Cates and David Rhoades. This stated that plants which are apparent usually contain secondary components which reduce digestibility (tannins and lignins) while ephemeral plants have more toxic, and perhaps less costly, compounds such as alkaloids. These papers stimulated much research on biochemical ecology. The recognition of the importance of the biochemical factors in such interactions is not just of scientific interest. It is vitally important in programs for the production of new varieties of cultivated plants, especially in tropical countries where about one-third or more of the crops are lost to predation or disease.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 260 pp. Englisch.…

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura
    • Impresión bajo demanda

    Librería: Majestic Books, Hounslow, Reino UnidoMajestic Books

    Vendedor de 4 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 167,31

    Envío por EUR 7,74 
    Se envía de Reino Unido a Estados Unidos de America

    Cantidad disponible: 4 disponibles

    Condición: New. Print on Demand pp. 260 52:B&W 6.14 x 9.21in or 234 x 156mm (Royal 8vo) Case Laminate on White w/Gloss Lam.

  • Idioma: Inglés

    Editorial: Springer, 1985

    0306420066 / 9780306420061

    • Tapa dura
    • Impresión bajo demanda

    Librería: Biblios, frankfurt am main, HESSE, AlemaniaBiblios

    Vendedor de 4 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 168,05

    Envío por EUR 9,95 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 4 disponibles

    Condición: New. PRINT ON DEMAND pp. 260.

  • Idioma: Inglés

    Editorial: Springer US Mai 1985, 1985

    0306420066 / 9780306420061

    • Tapa dura
    • Impresión bajo demanda

    Librería: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, AlemaniaBuchWeltWeit Ludwig Meier e.K.

    Vendedor de 5 estrellas
    Contactar con el vendedor

    Condición: Nuevo

    EUR 160,49

    Envío por EUR 23,00 
    Se envía de Alemania a Estados Unidos de America

    Cantidad disponible: 2 disponibles

    Buch. Condición: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Chemical warfare between plants and their herbivores and pathogens was first brought to our attention by the publication 25 years ago of the paper by Fraenkel in Science. There, he pointed out that most plants have similar nutritional characteristics so that the selection of plants by insect herbivores must depend on the relative toxicity of secondary compounds. This led, rather gradually, to a host of papers on plant-herbivore interactions. More or less at the same time, insect physiologists and ecologists were starting to realise the importance of chemical communi cation systems in determining sexual and other characteristics of insect behaviour. Nine years ago the Phytochemical Society of North America published their Symposium on 'Biochemical Interaction Between Plants and Insects' in which the plant apparency theory was expounded by both Paul Feeny and Rex Cates and David Rhoades. This stated that plants which are apparent usually contain secondary components which reduce digestibility (tannins and lignins) while ephemeral plants have more toxic, and perhaps less costly, compounds such as alkaloids. These papers stimulated much research on biochemical ecology. The recognition of the importance of the biochemical factors in such interactions is not just of scientific interest. It is vitally important in programs for the production of new varieties of cultivated plants, especially in tropical countries where about one-third or more of the crops are lost to predation or disease. 260 pp. Englisch.…