Ghahari (93 Ergebnisse)

Soft cover. Zustand: Very Good. 1st Edition. 157 p., illustrated. Oversize [br 5].

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15.4 cm x 1.6 cm x 23.6 cm. Zustand: Wie neu. 1., Erstausgabe. 292 Seiten Softcover, Broschur in sehr gutem Zustand, innen wie außen wie neu. Bitte beachten Sie unsere Bilder. PU-120 Sprache: Deutsch Gewicht in Gramm: 454.

Zustand: New. 102, col photos, line drawings. 220x160mm. PB. NEW. . Bees belonging to the genus Trachusa are relatively large, robust species. Females are important pollinators which have a specialised pollen-carrying structure on the underside of the abdomen. Trachusa bees are solitary although usually construct their nests in aggregations. For those species whose breeding biology is known,nest cells are made from resin and pieces of green leaves. Trachusa has a world-wide distribution. This publication is the first comprehensive overview and guide to the 25 species found in Europe, Africa and Asia. It provides descriptions of all species and gives separate identification keys to females and males. All species are illustrated, with altogether 205 colour micro photographs and over 50 line drawings showing morphological details. The species accounts are further supported ny distribution maps and graphs depicting seasonal occurences. This publication hereby summarises our knowledge and attempts to stimulate further research in the taxonomy, biology and ecology of this still little-known group of insects.…

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Paperback. Zustand: new. Paperback. Braconidae of the Middle East (Hymenoptera): Taxonomy, Distribution, Biology, and Biocontrol Benefits of Parasitoid Wasp Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

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Zustand: NEW. 264, 52 col, 3 b/w illus. . HB. NEW. . The cosmopolitan family Vespidae (Hymenoptera: Vespoidea) comprises approximately 5,000 described species worldwide, traditionally classified into six subfamilies: Stenogastrinae, Eumeninae s.l., Euparagiinae, Masarinae, Polistinae, and Vespinae. Among vespid wasps, social behaviour ranges from solitary nesting to highly eusocial societies that function as superorganisms. Vespid wasps play vital roles in terrestrial ecosystems and are recognised as efficient biological control agents, preying on caterpillars and other insects, including many agricultural pests. Additionally, by occupying top positions in terrestrial arthropod food webs and visiting flowers for nectar, they contribute to the pollination of fruit and vegetable crops. Some vespid species have become invasive pests, and/or are feared for their painful stings, which can be fatal to individuals allergic to their venom.This book presents the first comprehensive treatment of the Vespidae of the Middle East, offering detailed information on 716 valid species and subspecies across 69 genera in four subfamilies: Eumeninae, Masarinae, Polistinae, and Vespinae. It provides a complete taxonomic treatment of all subfamilies known from the region, along with insights into their general biology, ecology, and geographic distribution. The book also includes discussions on morphology, identification keys to genera, economic importance, diagnostic characters of each group, and their affinities with related groups. An extensive bibliography of over 800 references supports further study, and, whenever possible, the information has been updated to reflect the most current knowledge.As the definitive guide to the Vespidae of the Middle East, this book serves as a valuable resource for researchers studying wasps worldwide. [9781041241461]. …

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Zustand: New. Offers braconid taxonomy, biology, phylogeny and host-parasitoid relationships Provides illustrated identification keys to visualize and identify each species Includes global distribution of braconids in other regions Dis.

Zustand: New. Hassan Ghahari is currently working as a professor of entomology (insect systematics, and biological control) at Plant Protection Department, Yadegar-e-Imam Khomeini (RAH) Shahre Rey Branch, Islamic Azad University, Tehran, Iran. He received his B.

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