81 uppsatser · sida 1 av 6
This is a study of the insect community associated to the wood-decaying fungus Inonotus radiatus found on Alnus glutinosa trees growing in riparian forests at the northern and southern shores of boreal lakes in the province Uppland. Little is known about this particular bracket …
… estimations of the toxicity of mixtures. This study was aimed at testing three insecticides (pirimicarb, fenitrothion and esfenvalerate) neurotoxic to Daphnia magna in order to evaluate if synergistic, antagonistic or strictly additive effects occur when added together in a …
ger besöket någon kunskap om mjölkproduktion?
… estimations of the toxicity of mixtures. This study was aimed at testing three insecticides (pirimicarb, fenitrothion and esfenvalerate) neurotoxic to Daphnia magna in order to evaluate if synergistic, antagonistic or strictly additive effects occur when added together in a …
en bakgrund till alléns framtida utveckling
… estimations of the toxicity of mixtures. This study was aimed at testing three insecticides (pirimicarb, fenitrothion and esfenvalerate) neurotoxic to Daphnia magna in order to evaluate if synergistic, antagonistic or strictly additive effects occur when added together in a …
Effekter av jordbruk på akvatiskt tillflöde till land vid norrländska bäckar
… part of the transportation from water to land is in form of emerged aquatic insects. Conversion of land from forest to agriculture can greatly affect aquatic ecosystems, and due to the close link, also affect the adjacent terrestral zone. Investigating how the presence of …
… is related to weather variables (e.g., ambient temperature and wind speed) and insect harassment. The shelter-seeking behaviour was studied for three different groups of horses: Group 1) eight individually housed horses in paddocks that had access to three different shelter …
Inventering av insekter och fåglar i bebyggda områden i Solna kommun
… old oaks were chosen for the study and inventoried for birds and saproxylic insects. The results were compared with other studies in areas of different sizes, both inside and outside of suburbs. Birds were inventoried at eight occasions between 7.00 and 9.25 am. In each area a …
Inventering av insekter och fåglar i bebyggda områden i Solna kommun
… old oaks were chosen for the study and inventoried for birds and saproxylic insects. The results were compared with other studies in areas of different sizes, both inside and outside of suburbs. Birds were inventoried at eight occasions between 7.00 and 9.25 am. In each area a …
… responses. Feeding experiments with the plant A. thaliana, the generalist insect pest Spodoptera littoralis and the specialist insect pest Plutella xylostella have been conducted. The results showed that the Spodoptera generalist is greatly affected by the plant`s defensive …
Insecticides will be removed from Swedish forestry, at present insecticides are used to treat our seedlings to avoid them from being attacked by pine weevils. With the forthcoming ban on insecticides alternative protective measures will have to be tested. Holmen Forest Ltd has …
restaureringseffekten på växter och insekter
… was affecting the plants in a positive way and if the effect was similar for insects. By comparing the publications, time seemed to have an important effect on insects. They needed time to recolonize restored areas. Plants were positively affected by all treatments while insects …
… remaining on clear cuts and therefore supply suitable habitat for saproxylic insects i.e. insects depending on dead wood for their survival. Recent stump harvesting activities threaten this substrate of ecological importance and increase the anthropogenic negative impacts on …
… priming of plant defense was tested for its effect against the generalist insect pest Spodoptera littoralis. The main hypothesis for the study was that Bacillus induced priming would enable the plant Arabidopsis thaliana to defend itself better against this insect herbivore …
En studie av genus, (o)begriplighet och (dys)funktionalitet i Franz Kafkas <em>Förvandlingen</em>
… a political figure of Dismodernity. Therefore, I have tried to draw a feminist insect politics out of his metamorphosis from (hu)man into insect. By doing a close reading, through the theoretical lenses of Judith Butler, Lennard J. Davis and Donna Haraway, Gregor Samsa can be …
bioassays with the insect herbivores Spodoptera littoralis and Agriotes spp.
… I investigated the effect of domestication on resistance against herbivorous insects in cotton plants. I used different varieties and species of wild and domesticated cotton in three different experiments. A feeding assay was conducted, the mortality, development time and pupal …
