Essays about: "Insect herbivory"

Found 5 essays containing the words Insect herbivory.

1. 1. Direct and indirect effects of roe deer (Capreolus capreolus) herbivory on an island population of Chequered blue butterfly (Scolitantides orion).

   University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Alexandra Johansson; [2021]
   Keywords : Scolitantides orion; Chequered blue butterfly; oviposition; oviposition behaviour; Indirect and direct effects; herbivory;

   Abstract : Herbivory by ungulates is a known agent of disturbance in many ecological systems around the globe. At high abundances and through a selective foraging behaviour herbivory may inflict significant direct and indirect effects on local plant and animal communities. READ MORE

3. 2. Nutrient cycling by the herbivorous insect Chrysomela tremulae : Nutrient content in leaves and frass and measurements of ingestion, egestion and exuviation rates

   University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Author : Sara Andersson; [2016]
   Keywords : Insect herbivory; nutrient cycling efficiencies; approximate digestibility; Chrysomela tremulae; increased C:N;

   Abstract : Insect herbivory on forest canopies strongly affects ecosystem nutrient cycling and availability in a variety of ways, e.g. by changing the quantity, quality and timing of nutrient input to forest soils. READ MORE

4. 3. Herbivores, pollinators and selection on flowering time in tetraploid and octoploid Cardamine pratensis

   University essay from Stockholms universitet/Institutionen för ekologi, miljö och botanik

   Author : Elsa Fogelström; [2013]
   Keywords : Cardamine; herbivory; herbivore mediated selection; pollination; pollen limitation; polyploidy; selection; flowering phenology;

   Abstract : Repeated polyploidization events are thought to be among the most important causes of sympatric speciation throughout evolutionary time. Changes in phenology and trait expressions that arise in polyploids have been shown to affect plant interactions with insect herbivores and pollinators. READ MORE

5. 4. Induced plant volatiles and their effect onSpodoptera littoralis choice of host plant : oviposition on damaged or undamaged cotton or maize

   University essay from SLU/Dept. of Plant Protection Biology

   Author : Thomas Svensson; [2012]
   Keywords : Induced plant volatiles; Spodoptera littoralis; oviposition; cotton; maize; induced defence;

   Abstract : Insects are the main pests of many crops despite many different control measures. There is a need for a better understanding of the factors that affect the relationship between insects and plants. It is important to investigate how insects find and choose their host plants. READ MORE

6. 5. Role of Brassinosteroids in plant growth promotion and stress tolerance during primingmediated by beneficial bacteria

   University essay from SLU/Dept. of Plant Biology and Forest Genetics (until 131231)

   Author : Oscar Javier Parra Pachon; [2011]
   Keywords : Brassinosteroids ; Bacillus amyloliquefasciens; priming; arabidopsis thaliana;

   Abstract : Brassinosteroids (BR) are plant hormones widely distributed throughout the plant kingdom inlow concentrations and with structural homology to animal and insect steroids. BR are involvedin numerous physiological processes, and they also fulfill an antagonistic role in anti-herbivorystructure formation in tomato (Campos et al., 2009). READ MORE