Sökning: "Canonical Correspondence Analysis CCA"

Hittade 2 uppsatser innehållade orden Canonical Correspondence Analysis CCA.

1. 1. Skogsväxters utbredning i relation till pH, latitud och trädsammansättning : Exkursion för ekologiundervisning

   Uppsats för yrkesexamina på avancerad nivå, Linköpings universitet/Biologi

   Författare :Rebecka Carlsson; [2016]
   Nyckelord :Forest herb; soil pH; latitudinal gradient of Sweden; Canonical Correspondence Analysis CCA ; Generalized-linear-model GLM ; excursion; secondary school; ecology;

   Sammanfattning : This study investigated the impact of three edaphic factors on the distribution of forest plants in Sweden. Based on 2657 plots with 22 common species, Canonical Correspondence Analysis (CCA) and Generalized-linear-model (GLM) were performed with pH measurements in the top layer of the soil, latitude and deciduous tree proportion as explanatory variables. LÄS MER

3. 2. Effects of Environmental Variables on Four Aquatic Insect Taxa among Smaller Water Bodies of Different Ages on Farmland; A Pilot Study

   Master-uppsats, Högskolan i Halmstad/Bio- och miljösystemforskning (BLESS)

   Författare :Assad Jaggwe; [2015]
   Nyckelord :Water bodies; Age; Insect species; Biodiversity; Agricultural land; Conservation;

   Sammanfattning : High anthropogenic modification like infrastructural development, drainage, eutrophication, dumping garbage, is a threat to biodiversity of smaller water bodies in agricultural landscapes. However, smaller water bodies have historically been constructed for drainage, waste treatment and other purposes. LÄS MER