Institution
University of Maine
Education•Orono, Maine, United States•
About: University of Maine is a education organization based out in Orono, Maine, United States. It is known for research contribution in the topics: Population & Ice sheet. The organization has 8637 authors who have published 16932 publications receiving 590124 citations. The organization is also known as: University of Maine at Orono.
Topics: Population, Ice sheet, Climate change, Glacial period, Glacier
Papers published on a yearly basis
Papers
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TL;DR: It was concluded that the destruction of transcripts during the GV to MII transition is a selective rather than promiscuous process in mouse oocytes.
307 citations
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Brigham Young University1, Lancaster University2, Colorado State University3, Landcare Research4, Tulane University5, University of Siena6, University of Delaware7, Sapienza University of Rome8, University of Maine9, Natural Environment Research Council10, University of Miami11, University of Waikato12, University of Newcastle13, Imperial College London14, Australian Antarctic Division15, Massey University16
TL;DR: The soil ecosystems of Victoria Land (VL) Antarctica should play a major role in exploring the relationship between biodiversity and ecosystem functioning, and in monitoring the effects of environmental change on soil processes in real time and space.
Abstract: Understanding the relationship between soil biodiversity and ecosystem functioning is critical to predicting and monitoring the effects of ecosystem changes on important soil processes. However, most of Earth's soils are too biologically diverse to identify each species present and determine their functional role in food webs. The soil ecosystems of Victoria Land (VL) Antarctica are functionally and biotically simple, and serve as in situ models for determining the relationship between biodiversity and ecosystem processes. For a few VL taxa (microarthropods, nematodes, algae, mosses and lichens), species diversity has been intensively assessed in highly localized habitats, but little is known of how community assemblages vary across broader spatial scales, or across latitudinal and environmental gradients. The composition of tardigrade, rotifer, protist, fungal and prokaryote communities is emerging. The latter groups are the least studied, but potentially the most diverse. Endemism is highest for microarthropods and nematodes, less so for tardigrades and rotifers, and apparently low for mosses, lichens, protists, fungi and prokaryotes. Much of what is known about VL diversity and distribution occurs in an evolutionary and ecological vacuum; links between taxa and functional role in ecosystems are poorly known and future studies must utilize phylogenetic information to infer patterns of community assembly, speciation, extinction, population processes and biogeography. However, a comprehensive compilation of all the species that participate in soil ecosystem processes, and their distribution across regional and landscape scales is immediately achievable in VL with the resources, tools, and expertise currently available. We suggest that the soil ecosystems of VL should play a major role in exploring the relationship between biodiversity and ecosystem functioning, and in monitoring the effects of environmental change on soil processes in real time and space.
307 citations
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TL;DR: In this article, the authors look at the differential effects of men and women entrepreneurs' human capital and networking on their growth expectancies in the context of a transitional economy, and find that women have different socialization experiences and conceive of their new venture growth differently.
Abstract: Based on expectancy theory and social psychology perspectives, this study looks at the differential effects of men and women entrepreneurs’ human capital and networking on their growth expectancies in the context of a transitional economy. Survey data from men and women new venture owners in Bulgaria (n = 544) suggest that growth expectancy among men is significantly and positively associated with outside advice achieved through networking. Among women entrepreneurs, growth expectancy is significantly and positively associated with perceived benefits from prior experience. A Chow test for coefficient differences reveals that the determinants of growth expectancy for women entrepreneurs are significantly different than those for men, rendering support for perspectives from social psychology, which suggest that women have different socialization experiences and, as a result, conceive of their new venture growth differently. Implications for managerial practice and public policy are discussed.
307 citations
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TL;DR: The authors examined the effects of N fertilization on forest soil fungal and bacterial biomass at three long-term experiments in New England (Harvard Forest, MA; Mt. Ascutney, VT; and Bear Brook, ME).
307 citations
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University of Washington1, Science Museum of Minnesota2, University of Regina3, National Oceanic and Atmospheric Administration4, Yunnan Normal University5, McGill University6, Idaho State University7, Lund University8, United States Fish and Wildlife Service9, University of Maine10, Fisheries and Oceans Canada11, University of Alberta12
TL;DR: Nitrogen (N) stable isotope ratios in dated sediments from 25 remote Northern Hemisphere lakes show a coherent signal of an isotopically distinct source of N to ecosystems beginning in 1895 ± 10 years (±1 standard deviation).
Abstract: Humans have more than doubled the amount of reactive nitrogen (Nr) added to the biosphere, yet most of what is known about its accumulation and ecological effects is derived from studies of heavily populated regions. Nitrogen (N) stable isotope ratios (15N:14N) in dated sediments from 25 remote Northern Hemisphere lakes show a coherent signal of an isotopically distinct source of N to ecosystems beginning in 1895 ± 10 years (±1 standard deviation). Initial shifts in N isotope composition recorded in lake sediments coincide with anthropogenic CO2 emissions but accelerate with widespread industrial Nr production during the past half century. Although current atmospheric Nr deposition rates in remote regions are relatively low, anthropogenic N has probably influenced watershed N budgets across the Northern Hemisphere for over a century.
305 citations
Authors
Showing all 8729 results
Name | H-index | Papers | Citations |
---|---|---|---|
Clifford J. Rosen | 111 | 655 | 47881 |
Juan S. Bonifacino | 108 | 303 | 46554 |
John D. Aber | 107 | 204 | 48500 |
Surendra P. Shah | 99 | 710 | 32832 |
Charles T. Driscoll | 97 | 554 | 37355 |
Samuel Madden | 95 | 388 | 46424 |
Lihua Xiao | 93 | 495 | 32721 |
Patrick G. Hatcher | 91 | 401 | 27519 |
Pedro J. J. Alvarez | 89 | 378 | 34837 |
George R. Pettit | 89 | 848 | 31759 |
James R. Wilson | 89 | 1271 | 37470 |
Steven Girvin | 86 | 366 | 38963 |
Peter Marler | 81 | 174 | 22070 |
Garry R. Buettner | 80 | 304 | 29273 |
Paul Andrew Mayewski | 80 | 420 | 29356 |