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Caitlin Dempsey

Caitlin Dempsey has been the editor of Geography Realm (formerly Geo Lounge) since 2007. Caitlin Dempsey is also the editor of GIS Lounge (gislounge.com).
Three turkey vultures with red heads sitting on the horizontal part of a light pole.

Geography of Vultures in the United States

May 24, 2023 by Caitlin Dempsey

The United States is home to three species of vultures: turkey vulture, black vulture, and the California condor.

Categories Biogeography Tags United States, vultures
Is this a ridge or a canyon? Relief inversion plays tricks on the brain with this image of the Colorado River in Arizona. Photo: NASA

Relief Inversion

May 16, 2023May 16, 2023 by Caitlin Dempsey

When looking at aerial and satellite imagery, telling the difference between a canyon and a mountain can sometimes be tricky due to an optical illusion known as relief inversion.

Categories Geography Basics Tags relief inversion, satellite imager, satellite imagery, shaded relief
A view of chaparral bushes with a bare zone in front of them and grassland in the foreground.

Scurry Zones Around Chaparral Shrubs

May 15, 2023 by Caitlin Dempsey

Scurry zones are areas of low-lying vegetation that form a ring about some chaparral bushes near grasslands.

Categories Geography Basics Tags chaparral
A shaded relief map showing the extent of boreal vegetation in Canada.

Wildfires in Canada

May 15, 2023 by Caitlin Dempsey

Canada’s boreal forests are facing a strong start to the 2023 wildfire season in Alberta and British Columbia.

Categories Biogeography Tags boreal forests, Canada, wildfires
A raft of sea otters. Photo: USFWS, public domain

Sea Otters are a Keystone Species

May 6, 2023May 5, 2023 by Caitlin Dempsey

Keystone species are plants or animals whose presence in an ecosystem plays a crucial role in its health.

Categories Biogeography Tags keystone species, Otters, Sea Otter Awareness Week
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Recent Posts

  • Geography of Vultures in the United States
  • Cities are Changing Cloud Formations
  • Relief Inversion
  • Scurry Zones Around Chaparral Shrubs
  • Wildfires in Canada
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