Sökning: "Bat activity"

Visar resultat 1 - 5 av 14 uppsatser innehållade orden Bat activity.

  1. 1. Turning Night into Day : Does Skyglow affect Bat Activity and Timing of Emergence?

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Torge Gerwin; [2023]
    Nyckelord :Skyglow; Bats; Light pollution; Bat activity; Bat emergence; Riparian forest; Landscape composition; Multi-scale landscape; Landscape management; Sweden;

    Sammanfattning : Artificial brightness of the night sky caused by the backscatter of artificial light in the atmosphere is a consequence of ongoing urbanization. Skyglow covers 88 % of Europe’s surface and poses significant threats to biodiversity. Extensive research on responses of bats to direct light pollution already revealed significant impacts. LÄS MER

  3. 2. Hibernation Sites and Activity of Bats During Winter

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

    Författare :Jacqueline Nelms; [2023]
    Nyckelord :bats; temperate bats; hibernation; winter activity; temperature; hibernation sites; fladdermöss; tempererade fladdermöss; övervintring; vinteraktivitet; temperatur; övervintringsplatser;

    Sammanfattning : In the temperate region, bats have evolved the strategy of hibernation to survive the harsh winter. During hibernation, bats enter the vulnerable state of torpor that requires specific environmental conditions to function optimally. Bats are known to use caves and anthropogenic structures as hibernation sites. LÄS MER

  4. 3. Bats as indicators of habitat connectivity in urban environments

    Kandidat-uppsats, SLU/Dept. of Urban and Rural Development

    Författare :Linnéa Sundberg; [2022]
    Nyckelord :Bats; Sweden; light; fragmentation; connectivity; urban; Myotis; Myotis brandtii;

    Sammanfattning : Human disturbances to natural environments have been an increasing issue since the industrial revolution when the human population started to grow faster than ever before. Habitats have been extensively lost, followed by severe consequences on biodiversity. LÄS MER

  5. 4. Studie av fladdermusförekomst och hur den påverkas av habitattyper : I Vara, Alingsås, Vårgårda och Borås kommuner

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för biovetenskap

    Författare :Caroline Öhman; [2021]
    Nyckelord :;

    Sammanfattning : Insectivorous bats face fragmentation and loss of suitable habitats. Bats numbers are declining in several parts of the world and scientists aim to construct distribution models that can predict occurrence, in order to understand species habitat requirements. LÄS MER

  7. 5. Raspberry Pi Based IoT System for Bats Detection at Wind Farms

    Kandidat-uppsats, Blekinge Tekniska Högskola/Institutionen för matematik och naturvetenskap

    Författare :Hemanth Surya Karuturi; Megha Sanjeev Reddy Karri; [2020]
    Nyckelord :Bats; Pattern Recognition; Ultrasonic Frequencies; Ultrasonic Microphone; Ultrasonic Transducer; Wind Turbines;

    Sammanfattning : Context: Large numbers of bats are killed by collisions with wind turbines and there is at present no accepted method of reducing or preventing this mortality. We designed a system, which detects and records any bats’ activity in and around the surroundings of wind turbines. LÄS MER