نتایج جستجو برای: tropical zones

تعداد نتایج: 112974  

Journal: :ISPRS Int. J. Geo-Information 2017
David M. Makori Ayuka T. Fombong Elfatih M. Abdel-Rahman Kiatoko Nkoba Juliette Ongus Janet Irungu Gladys Mosomtai Sospeter Makau Onisimo Mutanga John Odindi Suresh K. Raina Tobias Landmann

Bee keeping is indispensable to global food production. It is an alternate income source, especially in rural underdeveloped African settlements, and an important forest conservation incentive. However, dwindling honeybee colonies around the world are attributed to pests and diseases whose spatial distribution and influences are not well established. In this study, we used remotely sensed data ...

2007
F. Short T. Carruthers W. Dennison M. Waycott

Seagrasses, marine flowering plants, are widely distributed along temperate and tropical coastlines of the world. Seagrasses have key ecological roles in coastal ecosystems and can form extensive meadows supporting high biodiversity. The global species diversity of seagrasses is low (b60 species), but species can have ranges that extend for thousands of kilometers of coastline. Seagrass bioregi...

2012
Lothar Krienitz Christina BocK Kiplagat Kotut Thomas Pröschold

Trebouxiophytes of the Dictyosphaerium–morphotype from inland waters of Africa were studied using a polyphasic approach of SSU and ITS rDNA phylogeny, secondary structure of the ITS and observations made with a light microscope. Although the morphological criteria for differentiating species and genera are scarce, the genetic diversity of these algae was very high. Based on our genetic analysis...

2006
Ian Hatherly Karel Bolckmans Jeff Bale

Neoseiulus californicus was first reported in 1954 in California where it was collected from lemon trees (de Moraes et al. 2004). The predatory mite is distributed all over the world, both in arid and humid areas of sub-tropical and temperate zones. It was collected in Texas (USA), Mexico, Brazil, Guatemala, Peru, Argentina, Chile, Cuba, Colombia, Japan, Taiwan (introduced), Portugal, Italy, Fr...

Journal: :Postgraduate medical journal 1983
E G Olsen

The studies leading up to the unitarian concept suggesting that endomyocardial fibrosis, described in the tropics, and Löffler's endocarditis parietalis fibroplastica (Löffler's endomyocardial disease), described in the temperate zone, belong to the same disease spectrum are detailed. Evidence that the eosinophil is involved in the pathogenesis of endomyocardial diseases, irrespective of the ge...

2008
STEFAN POREMBSKI

(Tropical inselbergs: habitat types, adaptive strategies and diversity patterns). Inselbergs are isolated rock outcrops that rise abruptly above the surrounding plains. Granitic and gneissic inselbergs are geologically and geomorphologically old and occur throughout a broad spectrum of climatic zones. They form microclimatically and edaphically dry growth sites that support a highly specialized...

Journal: :Magnetic resonance in chemistry : MRC 2009
Humberto G da Silva Neto João B P da Silva Giuliano E Pereira Fernando Hallwass

Traditionally, wines are produced in temperate climate zones, with one harvest per year. Tropical wines are a new concept of vitiviniculture that is being developed, principally in Brazil. The new Brazilian frontier is located in the northeast region (São Francisco River Valley) in Pernambuco State, close to the equator, between 8 and 9 degrees S. Compared with other Brazilian and worldwide vin...

2008
Sergio Vargas Hector M. Guzman Odalisca Breedy

Gorgonian octocorals (order Alcyonacea) are the most abundant components of shallow eastern Pacific marine communities (Breedy & Guzman, 2003a). They occur mainly in zones of strong current swell and breaking surf, attached to rocky bottoms, shells, and small rock fragments (Breedy & Guzman, 2002). Although abundant, the eastern Pacific octocoral fauna was considered poorly known by Bayer (1981...

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