Minckley robert (47 résultats)
CHORUS STRUCTURE IN TARBUSH GRASSHOPPERS: INHIBITION, SELECTIVE PHONORESPONSE AND SIGNAL COMPETITION
Edité par Animal Behavior, 1995
- Couverture souple
- Magazine ou périodique
Vendeur : Larry W Price Books, Portland, OR, Etats-UnisLarry W Price Books
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Occasion - Assez bon
EUR 7,15
EUR 4,35 expéditionExpédition nationale : Etats-UnisQuantité disponible : 1 disponible(s)
Ajouter au panierPamphlet. Etat : Very Good. Vol 50, pp. 579-594, Illus, Extracted from orig vol, begins with title page, trimmed & stapled, thus is like a pamphlet, VG.
Edité par Ecology, 1994
- Couverture souple
- Magazine ou périodique
Vendeur : Larry W Price Books, Portland, OR, Etats-UnisLarry W Price Books
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Occasion - Assez bon
EUR 8,95
EUR 4,35 expéditionExpédition nationale : Etats-UnisQuantité disponible : 1 disponible(s)
Ajouter au panierPamphlet. Etat : Very Good. Vol 75, No 5, pp. 1406-1419, Illus, 4to, Extracted from orig vol, begins with title page, trimmed & stapled, thus is like a pamphlet, last page in facsimile, else VG.

- Couverture rigide
Vendeur : Books From California, Simi Valley, CA, Etats-UnisBooks From California
Contacter le vendeurVendeur avec une évaluation de 4 étoilesEtat: Occasion - Très bon
EUR 28,02
EUR 4,38 expéditionExpédition nationale : Etats-UnisQuantité disponible : 6 disponible(s)
hardcover. Etat : Fine.

- Couverture rigide
Vendeur : Books From California, Simi Valley, CA, Etats-UnisBooks From California
Contacter le vendeurVendeur avec une évaluation de 4 étoilesEtat: Occasion - Satisfaisant
EUR 28,02
EUR 4,38 expéditionExpédition nationale : Etats-UnisQuantité disponible : 4 disponible(s)
hardcover. Etat : Good. No dust jacket. Cover and edges may have some wear.

- Couverture rigide
Vendeur : Skoob-ebooks, Pontiac, QC, CanadaSkoob-ebooks
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Occasion - Assez bon
EUR 31,91
EUR 11,40 expéditionExpédition depuis Canada vers Etats-UnisQuantité disponible : 1 disponible(s)
Hardcover. Etat : Very Good+. Etat de la jaquette : Very Good-. Almost like new with few signs of use. The binding is tight and the pages are clean and crisp. The dust jacket has minor incidental marks and blemishes only. Satisfaction guaranteed with 30-day return policy. Ships from Canada.; 7.5 X 1.5 X 10.5 inches; 488 pages; R5 403k/425k s8.…

- Couverture rigide
Vendeur : California Books, Miami, FL, Etats-UnisCalifornia Books
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 45,21
Frais de port gratuitsExpédition nationale : Etats-UnisQuantité disponible : Plus de 20 disponibles
Etat : New.

Solitary Bees : Biology, Evolution, Conservation
Danforth, Bryan N.; Minckley, Robert L.; Neff, John L.; Fawcett, Frances
- Couverture rigide
Vendeur : GreatBookPrices, Columbia, MD, Etats-UnisGreatBookPrices
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Occasion - Comme neuf
EUR 47,70
EUR 2,32 expéditionExpédition nationale : Etats-UnisQuantité disponible : 1 disponible(s)
Etat : As New. Unread book in perfect condition.

Solitary Bees : Biology, Evolution, Conservation
Danforth, Bryan N.; Minckley, Robert L.; Neff, John L.; Fawcett, Frances
- Couverture rigide
Vendeur : GreatBookPrices, Columbia, MD, Etats-UnisGreatBookPrices
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 49,31
EUR 2,32 expéditionExpédition nationale : Etats-UnisQuantité disponible : 1 disponible(s)
Etat : New.

The Solitary Bees: Biology, Evolution, Conservation
Bryan N. Danforth, Robert L. Minckley, John L. Neff, Frances Fawcett
- Couverture rigide
Vendeur : Chiron Media, Wallingford, Royaume-UniChiron Media
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 44,42
EUR 8,71 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 1 disponible(s)
Hardcover. Etat : New. Brand new book, sourced directly from publisher. Dispatch time is 24-48 hours from our warehouse. Book will be sent in robust, secure packaging to ensure it reaches you securely.

- Couverture rigide
Vendeur : Brook Bookstore On Demand, Napoli, NA, ItalieBrook Bookstore On Demand
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 45,36
EUR 11,00 expéditionExpédition depuis Italie vers Etats-UnisQuantité disponible : 18 disponible(s)
Etat : new.

- Couverture rigide
Vendeur : Rarewaves.com USA, London, LONDO, Royaume-UniRarewaves.com USA
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 59,13
Frais de port gratuitsExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 9 disponible(s)
Hardback. Etat : New. The most up-to-date and authoritative resource on the biology and evolution of solitary beesWhile social bees such as honey bees and bumble bees are familiar to most people, they comprise less than 10 percent of all bee species in the world. The vast majority of bees lead solitary lives, surviving without the help of a hive and using their own resources to fend off danger and protect their offspring. This book draws on new research to provide a comprehensive and authoritative overview of solitary bee biology, offering an unparalleled look at these remarkable insects.The Solitary Bees uses a modern phylogenetic framework to shed new light on the life histories and evolution of solitary bees. It explains the foraging behavior of solitary bees, their development, and competitive mating tactics. The book describes how they construct complex nests using an amazing variety of substrates and materials, and how solitary bees have co-opted beneficial mites, nematodes, and fungi to provide safe environments for their brood. It looks at how they have evolved intimate partnerships with flowering plants and examines their associations with predators, parasites, microbes, and other bees. This up-to-date synthesis of solitary bee biology is an essential resource for students and researchers, one that paves the way for future scholarship on the subject.Beautifully illustrated throughout, The Solitary Bees also documents the critical role solitary bees play as crop pollinators, and raises awareness of the dire threats they face, from habitat loss and climate change to pesticides, pathogens, parasites, and invasive species.…

Solitary Bees : Biology, Evolution, Conservation
Danforth, Bryan N.; Minckley, Robert L.; Neff, John L.; Fawcett, Frances
- Couverture rigide
Vendeur : GreatBookPricesUK, Woodford Green, Royaume-UniGreatBookPricesUK
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 41,30
EUR 17,44 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 1 disponible(s)
Etat : New.

- Couverture rigide
Vendeur : Brook Bookstore On Demand, Napoli, NA, ItalieBrook Bookstore On Demand
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 47,19
EUR 13,50 expéditionExpédition depuis Italie vers Etats-UnisQuantité disponible : Plus de 20 disponibles
Etat : new.

Solitary Bees : Biology, Evolution, Conservation
Danforth, Bryan N.; Minckley, Robert L.; Neff, John L.; Fawcett, Frances
- Couverture rigide
Vendeur : GreatBookPricesUK, Woodford Green, Royaume-UniGreatBookPricesUK
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Occasion - Comme neuf
EUR 46,73
EUR 17,44 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 1 disponible(s)
Etat : As New. Unread book in perfect condition.

- Couverture rigide
Vendeur : Majestic Books, Hounslow, Royaume-UniMajestic Books
Contacter le vendeurVendeur avec une évaluation de 4 étoilesEtat: Neuf
EUR 58,09
EUR 7,56 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 3 disponible(s)
Etat : New.

- Couverture rigide
Vendeur : Grand Eagle Retail, Bensenville, IL, Etats-UnisGrand Eagle Retail
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 66,43
Frais de port gratuitsExpédition nationale : Etats-UnisQuantité disponible : 1 disponible(s)
Hardcover. Etat : new. Hardcover. The most up-to-date and authoritative resource on the biology and evolution of solitary beesWhile social bees such as honey bees and bumble bees are familiar to most people, they comprise less than 10 percent of all bee species in the world. The vast majority of bees lead solitary lives, surviving without the help of a hive and using their own resources to fend off danger and protect their offspring. This book draws on new research to provide a comprehensive and authoritative overview of solitary bee biology, offering an unparalleled look at these remarkable insects.The Solitary Bees uses a modern phylogenetic framework to shed new light on the life histories and evolution of solitary bees. It explains the foraging behavior of solitary bees, their development, and competitive mating tactics. The book describes how they construct complex nests using an amazing variety of substrates and materials, and how solitary bees have co-opted beneficial mites, nematodes, and fungi to provide safe environments for their brood. It looks at how they have evolved intimate partnerships with flowering plants and examines their associations with predators, parasites, microbes, and other bees. This up-to-date synthesis of solitary bee biology is an essential resource for students and researchers, one that paves the way for future scholarship on the subject.Beautifully illustrated throughout, The Solitary Bees also documents the critical role solitary bees play as crop pollinators, and raises awareness of the dire threats they face, from habitat loss and climate change to pesticides, pathogens, parasites, and invasive species. The most up-to-date and authoritative resource on the biology and evolution of solitary bees which draws on new research to provide a comprehensive and authoritative overview of solitary bee biology, offering an unparalleled look at these remarkable insects. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

- Couverture rigide
Vendeur : Russell Books, Victoria, BC, CanadaRussell Books
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 49,73
EUR 17,55 expéditionExpédition depuis Canada vers Etats-UnisQuantité disponible : Plus de 20 disponibles
hardcover. Etat : New. Special order direct from the distributor.

- Couverture rigide
Vendeur : THE SAINT BOOKSTORE, Southport, Royaume-UniTHE SAINT BOOKSTORE
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 49,82
EUR 18,33 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 7 disponible(s)
Hardback. Etat : New. New copy - Usually dispatched within 4 working days.

- Couverture rigide
Vendeur : PEMBERLEY NATURAL HISTORY BOOKS BA, ABA, Iver, Royaume-UniPEMBERLEY NATURAL HISTORY BOOKS BA, ABA
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 43,11
EUR 25,58 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 8 disponible(s)
Etat : NEW. 512, . . HB. NEW. . Including more than four hundred species from all seven recognised biological families, a beautiful visual celebration of bee species the world over.The honeycombs, hives, dancing, and royalty of bee colonies have long captured the public's imagination, but there's far more to these insects. There are over 20,000 bee species, but only a handful have colonies approaching the organisation of the familiar western honeybee. The typical bee, if there is one, is solitary. It nests in the ground or a stem and has seven to fifteen offspring that develop and emerge the following year, long after their mother has died. These solitary species vary tremendously in the flowers they visit, how they collect pollen and nectar, the architecture of their nests, and how males strategise to find mates. Furthermore, another 17% of all bee species are well-armoured parasites, often with striking colours and an array of tactics for attacking other bees. Bees' keystone contribution, as pollinators, to the human food supply and to the proper function of ecosystems far exceeds their numbers. From the emerald-green dilemma orchid bee to the spined leafcutter cuckoo, this book celebrates bee species worldwide, highlighting a broad range of their diversity to illustrate how different they are in behaviour, life history, and interactions with flowers and humans. Each entry includes a distribution map, a table of essential information, a section on related species, and a description of the species' importance in terms of taxonomy, rarity, behaviour, and scientific significance. Striking photos show the bees at their actual size and are also enlarged to showcase intricate details.This wide-ranging exploration of social, solitary, and parasitic bees offers fascinating insights into their remarkable lives, fostering greater appreciation of their ecological importance and the need for their conservation. [9780226844244].…

- Couverture rigide
Vendeur : Ria Christie Collections, Uxbridge, Royaume-UniRia Christie Collections
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 54,45
EUR 17,37 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 19 disponible(s)
Etat : New. In English.

The Solitary Bees Biology, Evolution, Conservation
Danforth, Bryan N./ Minckley, Robert L./ Neff, John L./ Fawcett, Frances
- Couverture rigide
Vendeur : Revaluation Books, Exeter, Royaume-UniRevaluation Books
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 55,88
EUR 17,44 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 1 disponible(s)
Hardcover. Etat : Brand New. 424 pages. 10.50x7.50x1.50 inches. In Stock.

- Couverture rigide
Vendeur : Books Puddle, Woodside, NY, Etats-UnisBooks Puddle
Contacter le vendeurVendeur avec une évaluation de 4 étoilesEtat: Neuf
EUR 71,05
EUR 3,50 expéditionExpédition nationale : Etats-UnisQuantité disponible : 3 disponible(s)
Etat : New.

- Couverture rigide
Vendeur : Grand Eagle Retail, Bensenville, IL, Etats-UnisGrand Eagle Retail
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 77,25
Frais de port gratuitsExpédition nationale : Etats-UnisQuantité disponible : 1 disponible(s)
Hardcover. Etat : new. Hardcover. Including more than four hundred species from all seven recognized biological families, a beautiful visual celebration of bee species the world over. The honeycombs, hives, dancing, and royalty of bee colonies have long captured the publics imagination, but theres far more to these insects. There are over 20,000 bee species, but only a handful have colonies approaching the organization of the familiar western honeybee. The typical bee, if there is one, is solitary. It nests in the ground or a stem and has seven to fifteen offspring that develop and emerge the following year, long after their mother has died. These solitary species vary tremendously in the flowers they visit, how they collect pollen and nectar, the architecture of their nests, and how males strategize to find mates. Furthermore, another 17% of all bee species are well-armored parasites, often with striking colors and an array of tactics for attacking other bees.Bees keystone contribution, as pollinators, to the human food supply and to the proper function of ecosystems far exceeds their numbers. From the emerald-green dilemma orchid bee to the spined leafcutter cuckoo, The Book of Bees celebrates bee species worldwide, highlighting a broad range of their diversity to illustrate how different they are in behavior, life history, and interactions with flowers and humans. Each entry includes a distribution map, a table of essential information, a section on related species, and a description of the species importance in terms of taxonomy, rarity, behavior, and scientific significance. Striking photos show the bees at their actual size and are also enlarged to showcase intricate details.This wide-ranging exploration of social, solitary, and parasitic bees offers fascinating insights into their remarkable lives, fostering greater appreciation of their ecological importance and the need for their conservation. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

- Couverture rigide
Vendeur : BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, AllemagneBuchWeltWeit Ludwig Meier e.K.
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 55,00
EUR 23,00 expéditionExpédition depuis Allemagne vers Etats-UnisQuantité disponible : 1 disponible(s)
Buch. Etat : Neu. Neuware -Including more than four hundred species from all seven recognized biological families, a beautiful visual celebration of bee species the world over. The honeycombs, hives, dancing, and royalty of bee colonies have long captured the public's imagination, but there's far more to these insects. There are over 20,000 bee species, but only a handful have colonies approaching the organization of the familiar western honeybee. The typical bee, if there is one, is solitary. It nests in the ground or a stem and has seven to fifteen offspring that develop and emerge the following year, long after their mother has died. These solitary species vary tremendously in the flowers they visit, how they collect pollen and nectar, the architecture of their nests, and how males strategize to find mates. Furthermore, another 17% of all bee species are well-armored parasites, often with striking colors and an array of tactics for attacking other bees.Bees' keystone contribution, as pollinators, to the human food supply and to the proper function of ecosystems far exceeds their numbers. From the emerald-green dilemma orchid bee to the spined leafcutter cuckoo, The Book of Bees celebrates bee species worldwide, highlighting a broad range of their diversity to illustrate how different they are in behavior, life history, and interactions with flowers and humans. Each entry includes a distribution map, a table of essential information, a section on related species, and a description of the species' importance in terms of taxonomy, rarity, behavior, and scientific significance. Striking photos show the bees at their actual size and are also enlarged to showcase intricate details.This wide-ranging exploration of social, solitary, and parasitic bees offers fascinating insights into their remarkable lives, fostering greater appreciation of their ecological importance and the need for their conservation. 512 pp. Englisch.…

- Couverture rigide
Vendeur : Rheinberg-Buch Andreas Meier eK, Bergisch Gladbach, AllemagneRheinberg-Buch Andreas Meier eK
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 55,00
EUR 23,00 expéditionExpédition depuis Allemagne vers Etats-UnisQuantité disponible : 1 disponible(s)
Buch. Etat : Neu. Neuware -Including more than four hundred species from all seven recognized biological families, a beautiful visual celebration of bee species the world over. The honeycombs, hives, dancing, and royalty of bee colonies have long captured the public's imagination, but there's far more to these insects. There are over 20,000 bee species, but only a handful have colonies approaching the organization of the familiar western honeybee. The typical bee, if there is one, is solitary. It nests in the ground or a stem and has seven to fifteen offspring that develop and emerge the following year, long after their mother has died. These solitary species vary tremendously in the flowers they visit, how they collect pollen and nectar, the architecture of their nests, and how males strategize to find mates. Furthermore, another 17% of all bee species are well-armored parasites, often with striking colors and an array of tactics for attacking other bees.Bees' keystone contribution, as pollinators, to the human food supply and to the proper function of ecosystems far exceeds their numbers. From the emerald-green dilemma orchid bee to the spined leafcutter cuckoo, The Book of Bees celebrates bee species worldwide, highlighting a broad range of their diversity to illustrate how different they are in behavior, life history, and interactions with flowers and humans. Each entry includes a distribution map, a table of essential information, a section on related species, and a description of the species' importance in terms of taxonomy, rarity, behavior, and scientific significance. Striking photos show the bees at their actual size and are also enlarged to showcase intricate details.This wide-ranging exploration of social, solitary, and parasitic bees offers fascinating insights into their remarkable lives, fostering greater appreciation of their ecological importance and the need for their conservation. 512 pp. Englisch.…

- Couverture rigide
Vendeur : Biblios, frankfurt am main, HESSE, AllemagneBiblios
Contacter le vendeurVendeur avec une évaluation de 4 étoilesEtat: Neuf
EUR 69,05
EUR 9,95 expéditionExpédition depuis Allemagne vers Etats-UnisQuantité disponible : 3 disponible(s)
Etat : New.

- Couverture rigide
Vendeur : Revaluation Books, Exeter, Royaume-UniRevaluation Books
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 58,14
EUR 23,26 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 2 disponible(s)
Hardcover. Etat : Brand New. 512 pages. 7.00x1.50x10.00 inches. In Stock.

- Couverture rigide
Vendeur : Wegmann1855, Zwiesel, AllemagneWegmann1855
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 55,00
EUR 25,95 expéditionExpédition depuis Allemagne vers Etats-UnisQuantité disponible : 1 disponible(s)
Buch. Etat : Neu. Neuware -Including more than four hundred species from all seven recognized biological families, a beautiful visual celebration of bee species the world over. The honeycombs, hives, dancing, and royalty of bee colonies have long captured the public's imagination, but there's far more to these insects. There are over 20,000 bee species, but only a handful have colonies approaching the organization of the familiar western honeybee. The typical bee, if there is one, is solitary. It nests in the ground or a stem and has seven to fifteen offspring that develop and emerge the following year, long after their mother has died. These solitary species vary tremendously in the flowers they visit, how they collect pollen and nectar, the architecture of their nests, and how males strategize to find mates. Furthermore, another 17% of all bee species are well-armored parasites, often with striking colors and an array of tactics for attacking other bees.Bees' keystone contribution, as pollinators, to the human food supply and to the proper function of ecosystems far exceeds their numbers. From the emerald-green dilemma orchid bee to the spined leafcutter cuckoo, The Book of Bees celebrates bee species worldwide, highlighting a broad range of their diversity to illustrate how different they are in behavior, life history, and interactions with flowers and humans. Each entry includes a distribution map, a table of essential information, a section on related species, and a description of the species' importance in terms of taxonomy, rarity, behavior, and scientific significance. Striking photos show the bees at their actual size and are also enlarged to showcase intricate details.This wide-ranging exploration of social, solitary, and parasitic bees offers fascinating insights into their remarkable lives, fostering greater appreciation of their ecological importance and the need for their conservation.…

- Couverture rigide
Vendeur : Rarewaves USA, HEBRON, KY, Etats-UnisRarewaves USA
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 84,41
Frais de port gratuitsExpédition nationale : Etats-UnisQuantité disponible : Plus de 20 disponibles
Hardback. Etat : New. The most up-to-date and authoritative resource on the biology and evolution of solitary beesWhile social bees such as honey bees and bumble bees are familiar to most people, they comprise less than 10 percent of all bee species in the world. The vast majority of bees lead solitary lives, surviving without the help of a hive and using their own resources to fend off danger and protect their offspring. This book draws on new research to provide a comprehensive and authoritative overview of solitary bee biology, offering an unparalleled look at these remarkable insects.The Solitary Bees uses a modern phylogenetic framework to shed new light on the life histories and evolution of solitary bees. It explains the foraging behavior of solitary bees, their development, and competitive mating tactics. The book describes how they construct complex nests using an amazing variety of substrates and materials, and how solitary bees have co-opted beneficial mites, nematodes, and fungi to provide safe environments for their brood. It looks at how they have evolved intimate partnerships with flowering plants and examines their associations with predators, parasites, microbes, and other bees. This up-to-date synthesis of solitary bee biology is an essential resource for students and researchers, one that paves the way for future scholarship on the subject.Beautifully illustrated throughout, The Solitary Bees also documents the critical role solitary bees play as crop pollinators, and raises awareness of the dire threats they face, from habitat loss and climate change to pesticides, pathogens, parasites, and invasive species.…

- Couverture rigide
Vendeur : Revaluation Books, Exeter, Royaume-UniRevaluation Books
Contacter le vendeurVendeur avec une évaluation de 5 étoilesEtat: Neuf
EUR 71,84
EUR 23,26 expéditionExpédition depuis Royaume-Uni vers Etats-UnisQuantité disponible : 2 disponible(s)
Hardcover. Etat : Brand New. 512 pages. 7.00x1.50x10.00 inches. In Stock.