paukkunen (4 resultados)

Condición: New. 116, 209 col figs. . PB. NEW. . First comprehensive key to all 74 species of Chrysidid wasp found in the Nordic and Baltic countries. Includes information on distribution and biology of each species. [9789546428059].

Condición: New. 176, col photos, distribution maps. . HB. NEW. . Text Finnish. 2nd edition. The first guide to all 37 bumblebee species found in Finland. Colour photos of all species with information on biology and distribution maps. Enables identification of the species and also provides guidance on constructing bumble bee nests and other ways to encourage bumblebees. [9789522914545].

The Chrysididae are a group of cleptoparasitic and parasitoid aculeate wasps with a large number of rare and endangered species. The taxonomy of this group has long been confusing due to the similarity of species and extensive intraspecific variation. We present for the first time a comprehensive dichotomous key for all 74 species found in the Nordic and Baltic countries. In addition to diagnostic characters, information on the distribution and biology of each species is also presented. A new species, Chrysis borealis Paukkunen, Ødegaard & Soon, sp. n. is described on the basis of specimens collected from Fennoscandia. Chrysis gracillima Förster, 1853 is recorded as new to the Nordic and Baltic countries. Sofia, Moscow. Pensoft. 116 pp., color photos, b/w maps, tabs, br. gr. 8 [16.5 x 24 cm].

Bumblebees represent one of the most important groups of pollinators. In addition to their ecological and economic relevance, they are also a highly charismatic group which can help to increase the interest of people in realizing, enjoying and conserving natural systems. However, like most animals, bumblebees are sensitive to climate. In Climatic Risk and Distribution Atlas of European Bumblebees, maps depicting potential risks of climate change for bumblebees are shown together with informative summary statistics, ecological background information and a picture of each European species. Thanks to the EU FP7 project STEP, the authors gathered over one million bumblebee records from all over Europe. Based on these data, they modelled the current climatic niche for almost all European species (56 species) and projected future climatically suitable conditions using three climate change scenarios for the years 2050 and 2100. While under a moderate change scenario only 3 species are projected to be at the verge of extinction by 2100, 14 species are at high risk under an intermediate change scenario. Under a most severe change scenario as many as 25 species are projected to lose almost all of their climatically suitable area, while a total of 53 species (77% of the 69 European species) would lose the main part of their suitable area. Climatic risks for bumblebees can be extremely high, depending on the future development of human society, and the corresponding effects on the climate. Strong mitigation strategies are needed to preserve this important species group and to ensure the sustainable provision of pollination services, to which they considerably contribute. Sofia, Moscow. Pensoft. 236 pp., color photos, color & b/w illustrations, color distribution maps, color tables, hardcover gr. 8 [16.7 x 23.7 cm].