Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 21

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  Laos
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
A new orchid species, Cephalanthera ericiflora Szlach. and Mytnik, sp. nov. is described and illustrated. Its taxonomic position is briefly discussed
Shifting cultivation, or swiddening, involves alternating cycles of cropping and fallow periods. Rather than being abandoned, the fallow swidden fields provide a source of important plant products for remote, forest-dwelling human communities. In northern Laos, the traditional length of fallow periods used to range between five and 11 years, depending on the availability of land and quality of the soil. Fallow periods are currently being shortened because of population pressures and government policies. To determine the potential impacts of shorter fallow periods, 128 swidden fallows of various ages (up to 20 years), located at altitudes between 400 and 800 m a.s.l. in northern Laos were sampled for usable plants. The impact of fallow length on plant abundance and species diversity was analysed. The number of usable plant species was found to increase with the fallow age until it was 11–12 years old, and then decline, while the abundance of usable plants increased beyond that period. We conclude that shorter fallows will result in a significantly smaller usable plant abundance and species diversity for the villagers. We propose that 11–12-year-long fallows should be considered in order to fully exploit the greater plant volume of older fallows as well as the compositional shift of species in fallows over time.
The paper introduces an illustrative model, the ‘house model’, which contains a number of key elements for constructing and sustaining people’s participation in forest management. The model is used as a tool for analysing four donor supported forestry projects in Tanzania, Mozambique, Laos and Vietnam. The study shows that the two core elements for sustaining participation in forest management, regardless of land tenure or forest management model, are: (a) attitude: local people in the specific context see themselves as responsible for the local resources and; (b) access: local people gain secured access to information and benefits from the resources.
Ten new species of the genus Laena Dejean, 1821 (Tenebrionidae: Lagriinae) are described from the Malayan Peninsula (L. benderaica sp. nov., L. jeraica sp. nov., L. kelantanica sp. nov., L. penangica sp. nov., L. tanahratica sp. nov.), Thailand (L. ellenae sp. nov.) and Laos (L. Ьгтгсжсгг sp. nov., L. geiseri sp. nov., L. kresli sp. nov., L. pacholatkoi sp. nov.). The aedeagus of L. champasaka is figured for the first time. Identification keys are added for the 18 species from Malaysia and for the 7 species from Laos; the species from Laos are mapped.
Stellate patterns, called astrorhizae, occurring in some Paleozoic stromatoporoids are by most authors regarded as integral elements of these enigmatic fossils. The finding of stellate structures on epithecae of rugose corals from the Lower Carboniferous of Central Laos seems to support, however, the idea that astrorhizae in Paleozoic stromatoporoids may represent traces of foreign organisms.
Five new species of the genus Malayaplamius Masumoto, 1986 (Tenebrionidae: Cnodalonini) from Borneo and Laos are described: Malayaplamius bruneiensis sp. nov., Malayaplamius brunnipes sp. nov., Malayaplamius floreni sp. nov., Malayaplamius malgorzatae sp. nov., and Malayaplamius masumotoi sp. nov. New records of Malayaplamius baehri Utsunomiya et Masumoto, 2006, Malayaplamius becvari Utsunomiya et Masumoto, 2006, Malayaplamius fajar Utsunomiya et Masumoto, 2006, Malayaplamius kaszabi Masumoto, 1986, Malayaplamius luteofemoralis Utsunomiya et Masumoto, 2006, Malayaplamius malayensis Utsunomiya et Masumoto, 2006, and Malayaplamius sakaii Masumoto, 1986 are added.
Eleven new species of the genera Chinathous and Gnathodicrus from China, Laos, Nepal and Sikkim (North India) are described and illustrated: Chinathous heinzi sp. nov., C. jitiangensis sp. nov., C. juizhaigouensis sp. nov., C. moxiensis sp. nov., C. xinjiangensis sp. nov., Gnathodicrus daliangshanensis sp. nov., G. dehongdaiensis sp. nov., G. laoticus sp. nov., G. nepalensis sp. nov., G. vietnamensis sp. nov., G. zhangdianensis sp. nov., Chinathous lizipingensis (Schimmel et Tarnawski, 2006) is introduced as comb. nov. Gnathodicrus nepalensis sp. nov. is recorded as the first species of the genus Gnathodicrus from Himalaya (Nepal and North India).
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.