Essays about: "geographic data"

Showing result 6 - 10 of 390 essays containing the words geographic data.

  1. 6. Estimating historic ranges of extinct scavenging birds from North America during the late Pleistocene using co-occurrence data from the fossil record

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Melissa Miranda; [2023-06-30]
    Keywords : Scavenging birds; Vultures; Co-occurrence Data; Range Estimates; Spatial Autoregressive Models; Co-extinction;

    Abstract : The aim of my study was to estimate and compare the historic range of nine scavenging birds from North America that went jointly extinct with their mammalian megafaunal prey in the Late Pleistocene. Although the severity and timing of their co-extinction are strongly correlated, there has been little analytical support in providing estimates for the possible geographic distribution of scavenging birds prior to the extinction event. READ MORE

  3. 7. Värdväxter hos Coleophora - säckmalar : koppling till utbredning och hotstatus

    University essay from SLU/Dept. of Ecology

    Author : David Lundgren; [2023]
    Keywords : värdväxter; insekter; nattfjärilar; säckmalar; Lepidoptera; Coleophora; lövminerare; småfjärilar; fjärilslarver; rödlistade arter; hotade arter; pollinerare;

    Abstract : Att stoppa utarmning av biologisk mångfald och livsmiljöer är en stor utmaning och en ödesfråga för mänskligheten. Klimatförändringar, exploatering, kalhyggesskogsbruk, intensivt brukad jordbruksmark, invasiva arter och miljögifter medför att jorden är inne i sitt sjätte utdöende. READ MORE

  4. 8. Exploring patterns in risk factors for bark beetle attack during outbreaks triggered by drought stress with harvester data on attacked trees: A case study in Southeastern Sweden

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Nikolaos Kouskoulis; [2023]
    Keywords : Geography; GIS; Geographic Information Science; Forest ecosystems; Bark beetle outbreak; Southeastern Sweden; Predisposing factors; Triggering factors; Drought stress; Earth and Environmental Sciences;

    Abstract : ABSTRACT Raising temperatures and climate variability have intensified extreme weather events worldwide. These extremes can enhance and trigger possible pest outbreaks. Bark beetle attacks have become a major concern in regions with extensive spruce forest areas. Southeastern Sweden has faced repeated outbreaks resulting in widespread tree loss. READ MORE

  5. 9. Towards a Geographic Information Systems and Data-Driven Integration Management.

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Takura Matswetu; [2023]
    Keywords : Migrant Integration; Geography; Physical Geography; GIS; Network Analysis; Tampere; Accessibility; Data-driven decision making; Holistic Integration Index; Mathematics and Statistics; Social Sciences; Earth and Environmental Sciences;

    Abstract : Integration management in Finland and Tampere is broad task including multiple actors and departments. To manage integration, is to coordinate the cross organizational cooperation of multiple service structures that support migrants with different kinds of services. READ MORE

  6. 10. The accuracy of road distances in the Antonine itinerary

    University essay from Lunds universitet/Antikens kultur och samhällsliv

    Author : Tomas Öberg; [2023]
    Keywords : History and Archaeology;

    Abstract : The Antonine itinerary was compiled in the early fourth century CE and is a key source to our know¬¬ledge about ancient geography and the Roman road system. However, the major research work dates more than 100 years back in time and few studies have been focussed on its overall reliability. READ MORE