Dissertations / Theses on the topic 'Grassland'
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Stevens, Randall Elliott. "The use of weed technology in Palouse prairie remnants for management and restoration." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Thesis/Summer2010/r_stevens_051010.pdf.
Full textTitle from PDF title page (viewed on July 30, 2010). "Department of Crop and Soil Sciences." Includes bibliographical references.
Soest, Francien van. "Factors determining location and species composition of wet grasslands in Southwest England /." Utrecht : Royal Dutch Geographical Society [u.a.], 2005. http://www.loc.gov/catdir/toc/fy0710/2007385399.html.
Full textWissman, Jörgen. "Grazing regimes and plant reproduction in semi-natural grasslands /." Uppsala : Department of Conservation Biology, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200640.pdf.
Full textSchmitz, Anja [Verfasser]. "Grassland management with horses: Its role in grassland utilization in Germany and the effects on grassland vegetation / Anja Schmitz." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2021. http://d-nb.info/1225556112/34.
Full textGustavsson, Eva. "Grassland plant diversity in relation to historical and current land use /." Uppsala : Dept. of Ecology, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/2007106.pdf.
Full textLožytė, Aurelija. "The influence of agri-environmental measures based grassland management on grassland plant communities." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2014. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2014~D_20140526_082518-10331.
Full textPievos yra svarbus agrarinio kraštovaizdžio komponentas, atliekantis įvairias ekologines, ekonomines ir socialines funkcijas. Ilgalaikiai augaviečių sąlygų pokyčiai, kuriuos lemia žmogaus ūkinė veikla, įtakoja pievų augalų būklę. Lietuvos kaimo plėtros 2007–2013 m. programoje numatyta priemonė pievų biologinės įvairovės išsaugojimui, kurios tikslas panaudojant ES lėšas mažinti neigiamą antropogeninį poveikį pievų augalų bendrijoms. Ištyrus pievų augalijos įvairovės ir ūkinės vertės skirtumus, sąlygotus skirtingos ūkinės veiklos intensyvumo, šio darbo tikslas įvertinti reglamentuotų, ES agrarinės aplinkosaugos priemonėmis paremtų, pievų tvarkymo metodų efektyvumą smulkiuose Lietuvos ūkiuose. Atliktas tyrimas parodė, kad įvertinus augalų rūšių skaičių, augalų šeimų įvairovę, augalų rūšių santykinio gausumo pasiskirstymą, dominuojančias augalų rūšis tradiciniais ir agrarinės aplinkosaugos reikalavimus atitinkančiais ūkininkavimo metodais tvarkomose pievose, nustatyta, kad jose augo panašios augalų bendrijos. Tai parodė ir Žakaro bei Sörensen bendrumo koeficientų reikšmės. Abiejų tipų pievose rastų augalų rūšių prisitaikymo prie dirvožemio drėgmės, rūgštingumo, turtingumo maisto medžiagomis rodiklių reikšmės statistiškai reikšmingai nesiskyrė. Pievų augalų bendrijose vyravo mezofitai, daugumai augalų rūšių dirvožemio rūgštingumas buvo neįtakojantis veiksnys, pievoms būdingi mezooligotrofiniai ir mezotrofiniai žolynai. Tyrimas parodė, kad biologinės įvairovės apsaugai palankus... [toliau žr. visą tekstą]
Blake, Shona. "Effects of management practices on the ground beetle assemblages of grassland and related habitats (Coleoptera: Carabidae)." Thesis, Connect to e-thesis, 1996. http://theses.gla.ac.uk/702/.
Full textPh.D. thesis submitted to the Environmental Sciences Department, Scottish Agricultural College, 1996. Includes bibliographical references. Print version also available.
Allan, Eric. "Herbivore interactions and grassland biodiverity." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486760.
Full textCook, A. A. "Auchenorrhyncha of a calcareous grassland." Thesis, University of Leicester, 1993. http://hdl.handle.net/2381/34310.
Full textAllan, Eric. "Herbivore interactions and grassland biodiversity." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/11256.
Full textHadden, Susan A. "Composition and ecology of the flora and fauna of remnant native grasslands of the western basalt plains and northern plains of Victoria : implications for management on private property." Thesis, Federation University Australia, 1998. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/157195.
Full textDoctor of Philosophy
Lee, Stephanie L. "Post-fire successional effects on breeding grassland birds in mesquite savanna habitats of the Texas rolling plains." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4672.
Full textParker, Gary. "Comparison of IKONOS Derived Vegetation Index and LiDAR Derived Canopy Height Model for Grassland Management." Thesis, University of North Texas, 2009. https://digital.library.unt.edu/ark:/67531/metadc12179/.
Full textKuhn, Bernadette. "A floristic inventory of the Cimarron National Grassland (Kansas) and the Comanche National Grassland (Colorado), U.S.A." Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1935300211&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Full textLinsler, Deborah [Verfasser]. "Effects of grassland renovation on carbon concentrations and aggregate distribution in temperate grassland soils / Deborah Linsler." Kassel : Universitätsbibliothek Kassel, 2013. http://d-nb.info/1046424963/34.
Full textChepulis, Brian James. "Grassland Bird Response to Landscape-Level and Site-Specific Variables in the Little Missouri National Grassland." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28252.
Full textU.S Forest Service (USFS); Northern Prairie Wildlife Research Center (NPWRC) of the U.S. Geological Survey (USGS); North Dakota EPSCoR Graduate Research Assistantship program; Robert H. Levis II Cross Ranch Fellowship
Woldu, Zerihun. "Variation in grassland vegetation on the central plateau of Shewa, Ethiopia in relation to edaphic factors and grazing conditions /." Vaduz : J. Cramer, 1985. http://catalog.hathitrust.org/api/volumes/oclc/12384853.html.
Full textMills, Carolyn Lesley. "The nutrient economy of grazed grassland." Thesis, Queen's University Belfast, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361226.
Full textBaharith, Osama. "Ecological studies on some grassland Auchenorrhyncha." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254616.
Full textLivesey, Valerie. "Interference between genotypes during grassland establishment." Thesis, Aberystwyth University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316652.
Full textDeacon, Lewis James. "Functional biodiversity of grassland saprotrophic fungi." Thesis, King's College London (University of London), 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408680.
Full textRamos, M. I. R. F. "Studies of interactions between grassland plants." Thesis, University of Bristol, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379344.
Full textGottfried, Gerald J., and Peter F. Ffolliott. "The Seven Springs Experimental Grassland Watersheds." Arizona-Nevada Academy of Science, 2012. http://hdl.handle.net/10150/301340.
Full textTolsma, Arn Douwe. "The Effects of fire and grazing on the energy reserves of resprouting plants in Victoria's alpine grasslands /." Connect to thesis, 2002. http://eprints.unimelb.edu.au/archive/00000331.
Full textRoy, Gairik. "Methodologies for mapping the spatial extent and fragmentation of grassland using optical remote sensing." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Physics and Astronomy, c2012, 2012. http://hdl.handle.net/10133/3316.
Full textx, 105 leaves : ill., ; 29 cm
Phipps, Sarah J. "Biodiversity of ants (Hymenoptera: Formicidae) in restored grasslands of different ages." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4538.
Full textThe entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 27, 2007) Includes bibliographical references.
Wang, Zhi-gang. "Comparative ecology of pauciennials in chalk grassland." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315978.
Full textTye, Andrew M. "Responses to calcified seaweed in managed grassland." Thesis, University of Wolverhampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309803.
Full textZaloumis, Nicholas Paul. "South African grassland ecology and its restoration." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/6629.
Full textPerlut, Noah G. "Effects of Hayfield Management on Grassland Songbirds:." ScholarWorks @ UVM, 2007. http://scholarworks.uvm.edu/graddis/178.
Full textWelti, Ellen A. R. "Ecological networks of grassland plants and arthropods." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/35284.
Full textDivision of Biology
Anthony Joern
John Blair
Ecological communities are comprised both of species and their interactions. The importance of species interactions is embraced by ecological network analysis, a framework used to identify non-random patterns in species interactions, and the consequences of these patterns for maintaining species diversity. Here, I investigated environmental drivers of the structure of plant-pollinator and plant-herbivore networks. Specifically, I asked: (1) Do global-scale climate gradients shape mutualistic and antagonistic networks? (2) At a landscape scale (within a 3,487 ha research site), how do contrasting regimes of major grassland disturbances - fire frequency and grazing by bison (Bison bison) - shape plant-pollinator network structure? (3) How do fire and grazing affect plant-grasshopper network structure? And, (4) What is the role of plant species diversity in determining plant-herbivore network structure? At the global scale, variability in temperature was the key climatic factor regulating both antagonistic and mutualistic network structural properties. At the landscape scale, fire and grazing had major consequences for plant-pollinator and plant-herbivore communities. In particular, bison grazing increased network complexity and resistance to species loss for both plant-pollinator and plant-herbivore systems. Results from an experimental grassland restoration that manipulated plant diversity suggest that plant diversity directly affects plant-herbivore structure and increases network stability. Collectively, these results suggest that environmental gradients and plant species diversity regulate the network structure of ecological communities. Determining how the structure of ecological interactions change with environmental conditions and species diversity improves our ability to identify vulnerable communities, and to predict responses of biodiversity to global change.
Cunfer, Geoffrey Alan. "Common ground : the American grassland, 1870-1970 /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.
Full textJudd, Rachel Anne. "The coastal grasslands of the Eastern Cape west of the Kei River." Thesis, Rhodes University, 1999. http://hdl.handle.net/10962/d1003772.
Full textNüsse, Anja Marie [Verfasser]. "Effects of grassland management intensification on dynamics of soil organic carbon and nitrogen in temperate grassland soils / Anja Marie Nüsse." Kassel : Universitätsbibliothek Kassel, 2018. http://d-nb.info/1160045526/34.
Full textKamffer, Dewald. "Community-level effects of fragmentation of the afromontane grassland in the escarpment region of Mpumalanga, South Africa." Connect to this title online, 2004. http://upetd.up.ac.za/thesis/available/etd-11242004-104932.
Full textMoore, Joslin Lynley. "Coexistence, assembly and invasion of plant communities in theory and practice." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312122.
Full textBossenbroek, Jonathan Mark. "Spatial structure and scaling of beetle, bird and plant communities in North American grasslands." Access citation, abstract and download form; downloadable file 10.52 Mb, 2004. http://wwwlib.umi.com/dissertations/fullcit/3131657.
Full textTofts, Richard James. "On the assembly of a grassland plant community." Thesis, n.p, 1998. http://oro.open.ac.uk/19787/.
Full textKahmen, Stefanie. "Plant trait responses to grassland management and succession." kostenfrei, 2004. http://www.opus-bayern.de/uni-regensburg/volltexte/2004/324/.
Full textHulme, Philip Eric. "Small mammal herbivory and plant recruitment in grassland." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/46352.
Full textHeidorn, Christina Melanie. "Soil carbon dynamics in a nitrogen-enriched grassland." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0028/MQ50343.pdf.
Full textDalgleish, Harmony J. "Belowground bud banks as regulators of grassland dynamics." Diss., Manhattan, Kan. : Kansas State University, 2007. http://hdl.handle.net/2097/312.
Full textTaube, Melanie I. "Establishment of grassland forbs in modified urban environments /." Connect to thesis, 1998. http://eprints.unimelb.edu.au/archive/00000306.
Full textMacLeod, Alyssa. "Patterns of diversity in high elevation grassland Diptera." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114279.
Full textLa structure des communautés, le renouvellement et les patrons d'abondance des espèces de Diptera (Brachycera) ont été évalués le long de gradients latitudinaux dans les montagnes appalachiennes (Caroline du Nord) et les montagnes rocheuses (Colorado, Wyoming, Alberta). Deux échelles spatiales ont été utilisées dans chacune des montagnes: l'aire d'échantillonnage et le site. Il y avait un renouvellement des espèces, avec la latitude, la longitude et l'élévation étant les facteurs les plus fortement associés à la composition en espèces. Les communautés de chacun des sites étaient significativement différentes, excepté les deux sites de l'Alberta. La proximité et la similarité des sites étaient probablement responsables de cette différence. Les sites du Colorado étaient significativement différents des autres sites des Rocheuses, probablement à cause du bassin du Wyoming de faible altitude créant une barrière pour la dispersion des espèces retrouvées en haute altitude. Les patrons étaient en grande partie dirigés par les espèces rares. Une haute diversité-béta était retrouvée entre les sites, même chez les espèces communes. Les patrons d'abondance des espèces dans les Rocheuses et les Appalaches ont révélé que bien que les familles diverse écologiquement et les familles généralistes étaient dominées par quelques espèces, les groupes trophiques ne prédisent pas toujours avec précision les patrons de dominance/uniformité.
Chaneton, Enrique Jose. "Herbivore-mediated plant interactions in grassland food webs." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314368.
Full textMohd-Said, Mohd Nizam. "Effects of anthropogenic nitrogen inputs on dune grassland." Thesis, Bangor University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285519.
Full textLudlam, Denise. "The growth of roots in sown grassland systems." Thesis, Bangor University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.305237.
Full textLaughlin, R. J. "Processes responsible for denitrification in a grassland soil." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403169.
Full textKirkpatrick, T. "Fertiliser formulations to maximise nitrogen efficiency on grassland." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398096.
Full textMello, Maeve Brito de. "Studies on the structure of grassland spider communities." Thesis, University of Sunderland, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241504.
Full text