27 research outputs found
Longitudinal river zonation in the tropics: examples of fish and caddisflies from endorheic Awash river, Ethiopia
Primary Research PaperSpecific concepts of fluvial ecology are
well studied in riverine ecosystems of the temperate
zone but poorly investigated in the Afrotropical
region. Hence, we examined the longitudinal zonation
of fish and adult caddisfly (Trichoptera) assemblages
in the endorheic Awash River (1,250 km in length),
Ethiopia. We expected that species assemblages are
structured along environmental gradients, reflecting
the pattern of large-scale freshwater ecoregions. We
applied multivariate statistical methods to test for differences in spatial species assemblage structure and
identified characteristic taxa of the observed biocoenoses
by indicator species analyses. Fish and
caddisfly assemblages were clustered into highland
and lowland communities, following the freshwater
ecoregions, but separated by an ecotone with highest
biodiversity. Moreover, the caddisfly results suggest
separating the heterogeneous highlands into a forested
and a deforested zone. Surprisingly, the Awash
drainage is rather species-poor: only 11 fish (1
endemic, 2 introduced) and 28 caddisfly species (8
new records for Ethiopia) were recorded from the
mainstem and its major tributaries. Nevertheless,
specialized species characterize the highland forests, whereas the lowlands primarily host geographically
widely distributed species. This study showed that a
combined approach of fish and caddisflies is a
suitable method for assessing regional characteristics
of fluvial ecosystems in the tropicsinfo:eu-repo/semantics/publishedVersio
The Selous-Niassa Wildlife Corridor
Tanzania Wildlife Discussion Paper No. 34This paper describes how a number of governmental and nongovernmental actors under the leadership of the Tanzanian Wildlife Division have worked towards the creation of „Wildlife Management Areas“ on village land in Southern Tanzania, which would serve as a string of protected areas to form a corridor connecting two elephant ranges of high importance, the Selous Game Reserve and ecosystem and the Niassa Game Reserve in Mozambique
Planung von Entwicklungsprojekten Loesungen zu Fallstudien und Uebungen zu oekonomischen Problemen
SIGLEBibliothek Weltwirtschaft Kiel A158,754 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDEGerman
The Selous-Niassa Wildlife Corridor
Wildlife Division
Deutsche Gesellschaft für Technische Zusammenarbeit
GTZ Wildlife Programme in Tanzania
Dar Es Salaam 2003In the debate on biodiversity conservation two topics have gained prominence in recent years. One is connecting important protected areas by „corridors“ in order to safeguard the vital
genetic flow and exchange with the aim to avoid „conservation islands“. The other topic is
transboundary partnerships in conservation.
This paper describes how a number of governmental and nongovernmental actors under the
leadership of the Tanzanian Wildlife Division have worked towards the creation of „Wildlife
Management Areas“ on village land in Southern Tanzania, which would serve as a string of
protected areas to form a corridor connecting two elephant ranges of high importance, the
Selous Game Reserve and ecosystem and the Niassa Game Reserve in Mozambique
The Selous-Niassa Wildlife Corridor
Wildlife Division
Deutsche Gesellschaft für Technische Zusammenarbeit
GTZ Wildlife Programme in Tanzania
Dar Es Salaam 2003In the debate on biodiversity conservation two topics have gained prominence in recent years. One is connecting important protected areas by „corridors“ in order to safeguard the vital
genetic flow and exchange with the aim to avoid „conservation islands“. The other topic is
transboundary partnerships in conservation.
This paper describes how a number of governmental and nongovernmental actors under the
leadership of the Tanzanian Wildlife Division have worked towards the creation of „Wildlife
Management Areas“ on village land in Southern Tanzania, which would serve as a string of
protected areas to form a corridor connecting two elephant ranges of high importance, the
Selous Game Reserve and ecosystem and the Niassa Game Reserve in Mozambique