Sökning: "ant mounds"

Hittade 4 uppsatser innehållade orden ant mounds.

  1. 1. Exploring the impact of Formica exsecta ants on soil properties above the tree line in northern Sweden

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

    Författare :Filip Pekkari Juto; [2023]
    Nyckelord :Formica exsecta; ant mounds; soil properties; organic matter content; tundra;

    Sammanfattning : Ants are considered ecosystem engineers due to their effect on the soil properties and their ability to alter the flow of energy and nutrients. Many studies have focused on ants in boreal forests,but few have focused on the ant’s effect on the tundra. LÄS MER

  3. 2. The role of wood ants (Formica rufa) in the Arctic tundra and how climate change may alter this role

    Master-uppsats,

    Författare :Michael Meijer; [2020]
    Nyckelord :Wood ants; ants; mounds; climate change; arctic tundra; ecosystem; ecology; vegetation; arthropods;

    Sammanfattning : In the Arctic tundra, wood ants play an important ecological role in aerating the soil, cycling nutrients, for seed dispersal and, as biological control by preying on forest pest insects during outbreaks. The increase in temperature, caused by climate change, is positively associated with ant abundance. LÄS MER

  4. 3. The role of wood ants (Formica rufa) in the Arctic tundra and how climate change may alter this role

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

    Författare :Michael Meijer; [2020]
    Nyckelord :Wood ants; ants; mounds; climate change; arctic tundra; ecosystem; ecology; vegetation; arthropods;

    Sammanfattning : In the Arctic tundra, wood ants play an important ecological role in aerating the soil, cycling nutrients, for seed dispersal and, as biological control by preying on forest pest insects during outbreaks. The increase in temperature, caused by climate change, is positively associated with ant abundance. LÄS MER

  5. 4. Skogsmyror (Formica rufa-gruppen) i monokulturell granskog och i nyckelbiotoper med hög andel gran i södra Sverige

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Germund Petersson; [2019]
    Nyckelord :Skogsmyror; Formica rufa-gruppen; myrstackar; monokultur; nyckelbiotop; gran;

    Sammanfattning : Ants belonging to the Formica rufa group (wood ants) and their mounds have a large impact on forest ecosystems. This makes them considered keystone species. Several species of wood ants are threatened globally according to the IUCN red list. LÄS MER