Essays about: "Odonata"

Showing result 1 - 5 of 7 essays containing the word Odonata.

  1. 1. The effect of temperature on the interaction between larvae of a native and a range expanding dragonfly species

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Sanne Everling; [2021]
    Keywords : Climate change; temperature; native; invasive; competition; behaviour; Odonata;

    Abstract : Climate change might affect the distribution of species; therefore, it is important to anticipate the imminent impact of climate change. Even though climate responses have the potential to affect species interactions, most models on the effect of climate change on species distribution assume that species respond to climate individually. READ MORE

  3. 2. Biodiversity of aquatic invertebrates in urban ponds: effects of land use

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Roberta Hedberg; [2019]
    Keywords : ;

    Abstract : Urban ponds have the potential to hold large abundance and diversity of aquatic invertebrates, which could maintain an overall high biodiversity in the urban landscape. Little is known about how aquatic systems, such as ponds, are affected by the fast rate of urbanisation caused by an increasing human population together with the expansion of cities. READ MORE

  4. 3. Study on biomass in semiaquatic insects (Odonata) over a 20-year period in central, Sweden.

    University essay from Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Author : Andreas Zsoldos; [2018]
    Keywords : Biomass; Odonata; Aesnidae; Libelluidae;

    Abstract : This study is about how biomass of dragonflies insects have changed over the past 20-years in a forested area of central Sweden. This was done by analysing previously collected Odonata larvae stored in ethanol where sampling effort corrects the weight per locality. READ MORE

  5. 4. The antihistamine hydroxyzine and Odonata : Bioaccumulation and effects on predator-prey interactions between dragonfly and damselfly larvae

    University essay from Institutionen för ekologi, miljö och geovetenskap

    Author : Ellinor Bomark; [2014]
    Keywords : Aquatic insects Odonata predator-prey bioconcentration antihistamines;

    Abstract : Through wastewater entering aquatic environments, aquatic insects are continuously exposed to pharmaceuticals including neurologically active antihistamines. The antihistamine hydroxyzine has previously been found to lower activity in damselflies and to reach 2000 times the concentration of surrounding water in damselfly tissue. READ MORE

  6. 5. Is the dragonfly composition changing in Central Sweden?

    University essay from Sektionen för ekonomi och teknik (SET)

    Author : Suzanna Persson; [2011]
    Keywords : Odonata; Climate Change;

    Abstract : The dragonfly communities in Sweden may be affected in many ways. Loss of habitats, habitat alteration or even environmental toxins might have a negative impact on the communities. A new threat to the communities and to the species in general is climate change. READ MORE