Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"IndVal"”.
-
The impact of pine plantations and alien invertebrates on native forest and fynbos invertebrate communities in Table Mountain National Park
… elsewhere. Using a reiterative process and IndVal, two ant species (Pheidole capensis and Camponotus bertolinii) were selected as ecological indicators of restoration progress in fynbos following clear-felling of pine. Ants similarly have application for monitoring in other …
-
Effects of land-use change on benthic macroinvertebrates in the upper reaches of the Apies-Pienaar catchment
… non-metric multidimensional scaling and Indval analyses. Nineteen families were collected, of which only three made up 80% of macroinvertebrates sampled. These families were Hirudinea, Chironomidae and Oligochaeta. Indices of macroinvertebrate community composition indicated a general …
-
Using Benthic Indicator Species and Community Gradients to Optimize Restoration in the Arid, Endorheic Walker River Watershed, Western USA
The challenge of restoring watersheds in arid regions often requires the development of novel scientific tools to guide management. The Walker Basin Program was created to reverse ecological decline in an arid, endorheic watershed through scientifically guided restoration. As part of this program, …
-
Ant diversity across an elevational gradient; functional versus taxonomic perspectives in the Soutpansberg Mountains, South Africa
… of the species had significant indicator values (IndVal) larger than 70 and several of these were restricted to elevational zones pointing to a narrow and restricted distribution of several ant species along this altitudinal gradient. Observed richness was the highest at a low altitude mesic and …
-
Etude de l’évolution et caractérisation des milieux semi-naturels des versants du Brabant sablo-limoneux dans le bassin amont de la Dyle : Propositions de mesures de restauration de la lande sèche : Cas de la Grande Bruyère de Rixensart
Au sein du district phytogéographique brabançon, le Brabant sablo-limoneux est caractérisé par une grande diversité de conditions stationnelles. Les versants sont occupés par d’importants affleurements de sables du tertiaire, alternant avec des placages limoneux du quaternaire. Les activités …