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Articles 1 - 11 of 11
Full-Text Articles in Biodiversity
Comstock Point, Lubec, Maine - A Natural And Photographic History, Willaim H. Schlesinger, Lisa M. Dellwo
Comstock Point, Lubec, Maine - A Natural And Photographic History, Willaim H. Schlesinger, Lisa M. Dellwo
Documents from Environmental Organizations
A natural and photographic history of our lands compiled by Lisa Dellwo and Bill Schlesinger, with the help of many friends and neighbors.
Effects Of Glacial Stressors On Sperm Maturation In Colonies Of The Red Tree Coral, Primnoa Pacifica, Joshua Lynn
Effects Of Glacial Stressors On Sperm Maturation In Colonies Of The Red Tree Coral, Primnoa Pacifica, Joshua Lynn
Honors College
The red tree coral, Primnoa pacifica, is a large, colony forming species of cold- water coral which is often an important habitat for many commercially important species of fish and crab. This keystone species is long lived and found at much shallower depths in the fjords of Glacier Bay National Park (GBNP) than elsewhere in the northern Pacific Ocean because of the phenomenon known as deep-water emergence. Due to their proximity to tidewater glaciers in GBNP, corals likely have to endure glacial stressors such as freshwater runoff and sedimentation that is not typical of populations in deeper water, which …
Primnoa Pacifica Reproduction In Shallow Versus Deep Habitats Of Glacier Bay National Park And Preserve, Alaska, Ciara N. Larence
Primnoa Pacifica Reproduction In Shallow Versus Deep Habitats Of Glacier Bay National Park And Preserve, Alaska, Ciara N. Larence
Honors College
Primnoa pacifica is a species of deep-sea cold-water coral that can be found in Glacier Bay National Park and Preserve in Alaska. These colonies are important to their ecosystem as they provide habitat for other species living in this area. One thing that makes P. pacifica important to study is that the species displays deep-water emergence. This is a phenomenon where species normally found in deep waters can exist in shallower waters, allowing easier access for research. The purpose of this thesis was to determine if depth effects the reproduction of male P. pacifica colonies. Two colonies from deep depths …
Ensuring A Post-Covid Economic Agenda Tackles Global Biodiversity Loss, Pamela Mcelwee, Esther Turnout, Mireille Chiroleu-Assouline, Jennifer Clapp, Cindy Isenhour, Tim Jackson, Eszter Kelemen, Daniel C. Miller, Graciela Rusch, Joachim H. Spangenberg, Anthony Waldron, Rupert J. Baumgartner, Brent Bleys, Michael W. Howard, Eric Mungatana, Hien Ngo, Irene Ring, Rui Santos
Ensuring A Post-Covid Economic Agenda Tackles Global Biodiversity Loss, Pamela Mcelwee, Esther Turnout, Mireille Chiroleu-Assouline, Jennifer Clapp, Cindy Isenhour, Tim Jackson, Eszter Kelemen, Daniel C. Miller, Graciela Rusch, Joachim H. Spangenberg, Anthony Waldron, Rupert J. Baumgartner, Brent Bleys, Michael W. Howard, Eric Mungatana, Hien Ngo, Irene Ring, Rui Santos
Teaching, Learning & Research Documents
Report that explores how governments can help mitigate ecosystem and species loss through their COVID-19 stimulus and recovery plans.
Repeat Disturbances Have Cumulative Impacts On Stream Communities, Jessica M. Haghkerdar, Jack R. Mclachlan, Alexis Ireland, Hamish S. Greig
Repeat Disturbances Have Cumulative Impacts On Stream Communities, Jessica M. Haghkerdar, Jack R. Mclachlan, Alexis Ireland, Hamish S. Greig
Biology and Ecology Faculty Scholarship
1. Climate change has altered disturbance regimes in many ecosystems, and predictions show that these trends are likely to continue. The frequency of disturbance events plays a particularly important role in communities by selecting for disturbance -tolerant taxa.
2. However, ecologists have yet to disentangle the influence of disturbance frequency per se and time since last disturbance, because more frequently disturbed systems have also usually been disturbed more recently. Our understanding of the effects of repeated disturbances is therefore confounded by differences in successional processes.
3. We used in -situ stream mesocosms to isolate and examine the effect of disturbance …
Connecting Rivers For Healthy Ocean Fisheries, Catherine Schmitt
Connecting Rivers For Healthy Ocean Fisheries, Catherine Schmitt
Maine Sea Grant Publications
Across Maine, communities and land owners are reconnecting rivers and streams by improving road crossings, fixing broken culverts, and removing dams and other barriers. There are many reasons for doing this work, including preventing costly repairs associated with flooding and washouts, enhancing water quality, increasing wildlife habitat, and restoring fish populations. Connecting Rivers explores some of the ways that streams connect inland lakes and forests and the sea. This first fact sheet in the series focuses on connections between populations of migratory river fish (alewives and blueback herring) and groundfish (e.g., cod).
Biogeochemical Hotspots In Forested Landscapes: The Role Of Vernal Pools In Denitrification And Organic Matter, Krista A. Capps, Regina L. Rancatti, Nathan Tomczyk, Aram J K Calhoun, Malcolm L. Hunter Jr.
Biogeochemical Hotspots In Forested Landscapes: The Role Of Vernal Pools In Denitrification And Organic Matter, Krista A. Capps, Regina L. Rancatti, Nathan Tomczyk, Aram J K Calhoun, Malcolm L. Hunter Jr.
Publications
Quantifying spatial and temporal heterogeneity in ecosystem processes presents a challenge for conserving ecosystem function across landscapes. In particular, many ecosystems contain small features that play larger roles in ecosystem processes than their size would indicate; thus, they may represent ‘‘hotspots’’ of activity relative to their surroundings. Biogeochemical hotspots are characterized as small features within a landscape that show comparatively high chemical reaction rates. In northeastern forests in North America, vernal pools are abundant, small features that typically fill in spring with snow melt and precipitation and dry by the end of summer. Ephemeral flooding alters soil moisture and the …
Silence Is The Loudest Sound, Emma Christian
Silence Is The Loudest Sound, Emma Christian
Honors College
Rhinoceros poaching is an act of killing a rhinoceros in order to take its horn, which is then used for human consumption or for cultural traditions. Both the Asian and the African rhinoceros are targets because of the demand from China, Vietnam, Yemen, and other countries around the world. Traditional Chinese Medicine practice is the main demand for rhinoceros horn and this demand in rhinoceros horn has caused an increase in the black market. Conservation of the rhinoceros is decreasing primarily because the price of rhinoceros horn is more than double the average household income in South Africa, thus making …
The Complementary Niches Of Anthropocentric And Biocentric Conservationists, Malcolm L. Hunter Jr., Kent H. Redford, David Lindenmayer
The Complementary Niches Of Anthropocentric And Biocentric Conservationists, Malcolm L. Hunter Jr., Kent H. Redford, David Lindenmayer
Publications
A divergence of values has become apparent in recent debates between conservationists who focus on ecosystem services that can improve human well-being and those who focus on avoiding the extinction of species. These divergent points of view fall along a continuum from anthropocentric to biocentric values, but most conservationists are relatively closer to each other than to the ends of the spectrum. We have some concerns with both positions but emphasize that conservation for both people and all other species will be most effective if conservationists focus on articulating the values they all share, being respectful of divergent values, and …
The Cc-Bio Project: Studying The Effects Of Climate Change On Quebec Biodiversity, Dominique Berteaux, Sylvie Blois, Jean-François Angers, Joël Bonin, Nicolas Casajus, Marcel Darveau, François Fournier, Murray Humphries, Brian Mcgill, Jacques Larivée, Travis Logan, Patrick Nantel, Catherine Périé, Frédéric Poisson, David Rodrigue, Sébastien Rouleau, Rouleau Siron, Wilfred Thuiller, Luc Vescovi
The Cc-Bio Project: Studying The Effects Of Climate Change On Quebec Biodiversity, Dominique Berteaux, Sylvie Blois, Jean-François Angers, Joël Bonin, Nicolas Casajus, Marcel Darveau, François Fournier, Murray Humphries, Brian Mcgill, Jacques Larivée, Travis Logan, Patrick Nantel, Catherine Périé, Frédéric Poisson, David Rodrigue, Sébastien Rouleau, Rouleau Siron, Wilfred Thuiller, Luc Vescovi
Publications
Anticipating the effects of climate change on biodiversity is now critical for managing wild species and ecosystems. Climate change is a global driver and thus affects biodiversity globally. However, land-use planners and natural resource managers need regional or even local predictions. This provides scientists with formidable challenges given the poor documentation of biodiversity and its complex relationships with climate. We are approaching this problem in Quebec, Canada, through the CC-Bio Project (http://cc‑bio.uqar.ca/), using a boundary organization as a catalyst for team work involving climate modelers, biologists, naturalists, and biodiversity managers. In this paper we present the CC-Bio Project and its …
Mammals Of Maine, Ralph S. Palmer
Mammals Of Maine, Ralph S. Palmer
Honors College
The present paper was undertaken in order that the compiler might gain a slight knowledge of Maine mammals and the literature pertaining to this branch of zoology. It was undertaken as a "major honors" course at the University of Maine for the school year of 1936-1937. It is possible that a perusal of this paper will reveal to others the striking scarcity of information on many of our mammalian forms. All the endemic forms known to have occurred in Maine within historic times are listed. Some of these forms are extirpated at the present time. Introduced species are not treated.