960 research outputs found
Elytrigia repens as an invasive species during salt marsh restoration at the Baltic Sea
No full textTimling, Ina. (2000). Elytrigia repens as an invasive species during salt marsh restoration at the Baltic Sea. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/59716
Drivers and scale dependency of plant-fungal-bacterial community co-assembly across the Arctic (2005-2019)
No full textPeeking through a frosty window: molecular insights into the communities of Arctic soil fungi
No full textDissertation (Ph.D.) University of Alaska Fairbanks, 2013Fungi are thought to be one of the most diverse groups of organisms in the Arctic. They drive mineral and energy cycles and influence the occurrence of other organisms as mutualists (mycorrhizae, endophytes, lichens), decomposers and pathogens. Nevertheless, information on fungal biodiversity and distribution patterns in relation to environments across the Arctic is still sparse. Molecular methods were used to examine the diversity and community structures of ectomycorrhizal fungi (EMF) associated with two principal arctic host plants, Salix aretica and Dryas integrifolia, as well as total soil fungal communities of adjacent disturbed and undisturbed areas of patterned-ground features across the five bioclimatic subzones (A-E) of the North American Arctic. Key findings include the following: (1) More diverse fungal communities had been observed than previously known. These communities encompass nearly all fungal phyla and included all fungal guilds. However, a few species-rich fungal families dominated these fungal communities. (2) Surprisingly, species richness did not decline with latitude. (3) The most abundant fungal taxa were widely distributed in and beyond the Arctic. Yet root (EMF) and soil fungal communities showed niche preferences in regard to bioclimatic subzones. Furthermore, disturbed and undisturbed patterned ground features harbored different soil fungal communities with the exception of the coldest subzone A. In contrast, EMF community composition was not affected by host plant identity. (4) Fungal communities in the warmest subzone E were distinct from the other arctic subzones and the majority of taxa matched fungi from the boreal forest. (5) Key drivers of fungal community and guild composition along the bioclimatic gradient included regional climate, p.H as well as vegetation composition and productivity across the subzones. At the local scale of patterned-ground features, fungal communities were correlated with vegetation composition and microclimate. With a warming climate, I would expect an enhanced colonization of patterned-ground features by vascular plants that would then affect fungal community structure not only at the species level, but also at the level of fungal guilds. In particular I would expect increases in fungi that are symbiotic with plants and a northward shift of both plant and fungal taxa.Chapter 1. General introduction -- 1.1. References -- Chapter 2. Peeking through a frosty window : molecular insights into the ecology of Arctic soil fungi -- 2.1. Abstract -- 2.2. Introduction -- 2.3. Arctic soil : an extreme environment -- 2.4. Arctic soil fungal diversity -- 2.5. Fungal distribution patterns in Arctic soils -- 2.6. Responses of Arctic soil fungi to climate change -- 2.7. Adaptations of soil fungi to Arctic environments -- 2.8. Future challenges in Arctic soil mycology -- 2.9. Acknowledgements -- 2.10. References -- Chapter 3. Distribution and drivers of ectomycorrhizal fungal communities and across the North American Arctic -- 3.1. Abstract -- 3.2. Introduction -- 3.3. Material and methods -- 3.3.1. Study area -- 3.3.2. Sampling and processing -- 3.3.3. Molecular analysis -- 3.3.4. RFLP screening -- 3.3.5. Cloning and sequencing -- 3.3.6. Bioinformatics & statistical analysis -- 3.3.7. OTU clustering and alignment -- 3.3.8. Nomenclature -- 3.3.9. Ordination analysis -- 3.3.10 Diversity analysis -- 3.4. Results -- 3.4.1. EMF diversity in the Arctic -- 3.4.2. Patterns of EMF communities -- 3.4.3. Drivers of EMF community structure -- 3.5. Discussion -- 3.5.1. EMF diversity in the Arctic -- 3.5.2. Large scale EMF community patterns in the Arctic -- 3.5.3. Factors shaping EMF communities -- 3.6. Acknowledgements -- 3.7. References -- 3.8. Figures -- 3.9. Tables -- 3.10. Appendices -- 3.11. Supporting information -- Chapter 4. Rich and cold : diversity, distribution and drivers of fungi in patterned-ground ecosystems of the North American Arctic -- 4.1. Abstract -- 4.2. Introduction -- 4.3. Material and methods -- 4.3.1. Study areas and patterned ground features -- 4.3.2. Sampling and processing -- 4.3.3. Molecular analysis -- 4.3.4. Bioinformatics -- 4.3.4.1. Sequence clean up -- 4.3.4.2. Diversity analysis -- 4.3.4.3. Ordination analysis -- 4.3.4.4. Distribution of OTUs -- 4.4. Results -- 4.4.1. Fungal divesity in the Arctic -- 4.4.2. Species richness along the latitudinal gradient -- 4.4.3. Community structure across the bioclimatic subzones -- 4.4.4. Fungal community structure within patterned-ground complexes -- 4.4.5. Drivers of fungal community structure -- 4.5. Discussion -- 4.5.1. Fungal diversity in Arctic soils (general description) -- 4.5.2. Large-scale fungal community patterns in the Arctic -- 4.5.2.1. Wide distribution of Arctic fungi -- 4.5.2.2. Fungal species richness along latitudinal gradient -- 4.5.2.3. Community structures and environmental drivers -- 4.6. Conclusions -- 4.7. Acknowledgements -- 4.8. References -- 4.9. Figures -- 4.10. Tables -- 4.11. Supporting information -- Chapter 5. Conclusions -- 5.1. Fungal diversity 5.2. Fungal distribution -- 5.3. Key drivers of fungal communities in the Arctic -- 5.4. Future work -- 5.5. A fungal 'outlook' -- 5.6. References
The birth and early years of INA, the International Neurotoxicology Association
No full textAbstractThe International Neurotoxicology Association (INA) is a scientific society whose members have interest and expertise in the discipline of neurotoxicology. The idea of forming INA was born in 1984, as a follow-up to a NATO-sponsored meeting on Toxicology of the Nervous System. INA held its first meeting in the Netherlands in 1987 and has had continuous meetings every other year since then. INA is registered as a scientific society in the Netherlands, and is an affiliated society of IUTOX. This paper presents a personal account of the events that led to the birth of INA, and of the first fifteen years of this association
Koło się zamyka
No full textIna Söllner was one of Schulz’s young sitters. As an adult person, she discovered in her autograph book a portrait of her mother, Ina, made by Schulz. The drawing called The King of Frogs [Żabi król] and a dedication referring to her mother sitting provoke the author to analyze her family connections with Schulz. Even though she does not remember her meeting with the artist, she reconstructs Schulz’s place in her biography and the circumstances under which they might have met
Pioneering Doktormutter Remembering Ina-Maria Greverus
No full textThe author reconsiders German scholar Ina-Maria Greverus as a committed feminist supporter of female doctoral students and early career academics. Greverus acted as an innovator especially in the realms of anthropology and aesthetics, and initiated a new international dialogue forum with the Anthropological Journal or European Cultures, which she founded in 1990 together with Christian Giordano.</p
The Circle Closes
No full textIna Söllner was one of Schulz’s young sitters. As an adult person, she discovered in her autograph book a portrait of her mother, Ina, made by Schulz. The drawing called The King of Frogs [Żabi król] and a dedication referring to her mother sitting provoke the author to analyze her family connections with Schulz. Even though she does not remember her meeting with the artist, she reconstructs Schulz’s place in her biography and the circumstances under which they might have met
Chronicles of Oklahoma
No full textArticle discusses the life of the author and her family after homesteading in Logan County, Oklahoma Territory. Ina Robinson discusses the difficulties faced on the frontier, the people they encountered there, education available, and social life
La Cañada Drive, River Road to Ina Road
No full texttableOfContents: The Pima County Department of Transportation proposes to widen approximately 2.7 miles of La Cañada Drive from a two-lane arterial road into a four-lane arterial road between River Road and Ina Road. The project also includes the installation of a closed stormwater collection and conveyance system, installation of culverts to create an all-weather roadway, and addition of curbs, sidewalks, bike lanes, and a public use trail
Ina M. McCausland Correspondence
No full textEntry is a letter from the Maine State Library in receipt of a book for the Maine Author Collection
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