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Full-Text Articles in Life Sciences

Identifying Umbrella Species To Inform The Conservation Of Intertidal Areas In Acadia National Park, Abigiail Muscat May 2022

Identifying Umbrella Species To Inform The Conservation Of Intertidal Areas In Acadia National Park, Abigiail Muscat

Honors College

The nearshore ecosystem in Maine (USA) supports several bird species that rely on intertidal and subtidal zones, including high densities of migratory shorebirds and wintering waterfowl. Additionally, Acadia National Park (ANP) includes some of the country’s highest densities of both Purple Sandpipers (Calidris maritima) and Harlequin Ducks (Histrionicus histrionicus). Here I investigated whether conservation actions taken to preserve these two species of high conservation concern might also benefit the larger taxonomic groups to which they belong, a concept known as “umbrella species conservation”. To answer this question, bird abundance surveys were conducted within ANP during 2021, and detection and occupancy …


Covid-19_Umaine News_Campus As Living Laboratory, University Of Maine Division Of Marketing And Communications Nov 2020

Covid-19_Umaine News_Campus As Living Laboratory, University Of Maine Division Of Marketing And Communications

Division of Marketing & Communications

Screenshot of UMaine News press release regarding EES 217 field course led by Kate Ruskin, a University of Maine lecturer and undergraduate coordinator in the Ecology and Environmental Sciences Program being held on campus to assess the tick risk on UMaine’s campus, in collaboration with UMaine professor Allison Gardner’s lab, the EES 217 students examined the vegetation, wildlife and abiotic associations of ticks on campus.


Twenty-Five Years Of Change In Spruce Grouse Occupancy At Their Southern Range Margin In Maine, Usa, Christopher J. Gilbert May 2018

Twenty-Five Years Of Change In Spruce Grouse Occupancy At Their Southern Range Margin In Maine, Usa, Christopher J. Gilbert

Honors College

Species at their southern range margin are often dispersed throughout fragmented populations where they experience less optimum conditions compared to their central range. Spruce Grouse (Falcipennis canadensis) are boreal forest obligates distributed throughout the Northern United States and Canada and reach their southeastern range extent in Maine. I resurveyed 18 Black Spruce (Picea mariana) – Tamarack (Larix laricina) stands on Mount Desert Island, Maine, to observe changes in Spruce Grouse occupancy and abundance between the early 1990s (Whitcomb et al. 1996) and present day. I conducted two rounds of call back surveys within each …


Examining Avian Diversity In Acadia National Park Through Time, Marie I. Ring May 2018

Examining Avian Diversity In Acadia National Park Through Time, Marie I. Ring

Honors College

Ecosystems experience change due to both natural causes and anthropogenic impact such as habitat fragmentation and climate change. Avian species are used as habitat indicators to observe ecosystem integrity and have been observed to experience changes in biodiversity due to anthropogenic impact. This study examines the temporal and spatial changes of avian biodiversity in Acadia National Park. We seek to understand (1) how the alpha diversity has changed over time on Mount Desert Island and Schoodic Peninsula, (2) how beta diversity has changed over time for Mount Desert Island and Schoodic Peninsula (3) how the Schoodic Woods Campground can be …