Sökning: "Shredders"

Visar resultat 1 - 5 av 9 uppsatser innehållade ordet Shredders.

  1. 1. Sammansättning av funktionella födosöksgrupper hos akvatiska insekter i vattendrag med och utan korttidsreglering

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Pontus Hindrikes Bergström; [2021]
    Nyckelord :Functional feeding groups; Aquatic invertebrates; FFG; Shredders; Grazers; Gatherers; Filter feeders; Predators; Hydropeaking; EPT; Funktionella födosöksgrupper; Korttidsreglering; akvatiska insekter; FFG; EPT;

    Sammanfattning : Hydropeaking is important to meet peak demand of electricity on the Swedish powergrid. The rapid changes in discharge may affect the ecology of streams and rivers negatively downstream of hydropeaking powerplants. LÄS MER

  3. 2. Seasonal community dynamics of macroinvertebrates in an Arctic stream

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Ellinor Jakobsson; [2019]
    Nyckelord :Macroinvertebrates; Arctic; seasonality; community composition; Abisko;

    Sammanfattning : Arctic ecosystems are amongst the most vulnerable on Earth to ongoing climate change. While the responses to these changes are well studied on land, less is known about how aquatic communities may respond to a warmer arctic. LÄS MER

  4. 3. Seasonal community dynamics of macroinvertebrates in an Arctic stream

    Kandidat-uppsats,

    Författare :Ellinor Jakobsson; [2019]
    Nyckelord :Macroinvertebrates; Arctic; seasonality; community composition; Abisko;

    Sammanfattning : Arctic ecosystems are amongst the most vulnerable on Earth to ongoing climate change. While the responses to these changes are well studied on land, less is known about how aquatic communities may respond to a warmer arctic. LÄS MER

  5. 4. Evertebraters kolonisation på fin ved i semi-naturliga bäckar

    Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper

    Författare :Patricia Johansson; [2015]
    Nyckelord :Macroinvertebrate density; functional feeding groups; habitation; substrate; artificial watercourse; diversity; drift; water velocity; upstream; downstream; Finland; Salix sp.; Makroevertebrattäthet; funktionella födogrupper; habitat; substrat; artificiella kanaler; diversitet; drift; vattenhastighet; uppström; nedström; Finland; Salix sp;

    Sammanfattning : Wood can be added to streams to create microhabitats that provide macroinvertebrates with an opportunity for re-colonization by making the stream more heterogeneous. I examined colonization on wood substrate by macroinvertebrates in semi-natural streams in northern Finland during a three month period. LÄS MER

  7. 5. Decomposition of leaf litter in headwater streams. : Effects of changes in the environment and contribution of microbial and shredder activity on litter decomposition.

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Johan Lidman; [2015]
    Nyckelord :Leaf-litter decomposition; headwaters; microbial decomposition; shredders; ecosystem adaptation;

    Sammanfattning : Headwaters, which are the most common stream order in the landscape, are mostly dependent on energy produced in the terrestrial system, largely consisting of leaf litter from riparian vegetation. The aim of this study was to investigate the decomposition in headwaters of leaf litter from three native (alder, birch, spruce) and one non-native (lodgepole pine) species and how decomposition responds to changes in the environment. LÄS MER