Geiriau Glaswelltiroedd 2 (P. Dennis) |
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Upland grassland Defining species Associated Plant community Abiotic and biotic ‘drivers’ Herbivore grazing Upland acid grassland Grassland ecosystem Semi-natural grassland Calcicolous Mesotrophic Calcifugous/Montane Calcareous grassland community Chalk grassland Calcium-rich sand dune slack Species richness Upland hay meadow Lowland wet meadow Mat grass Fescue grass Upland improved grassland Ryegrass – Timothy – Clover pasture National Vegetation Classification (NVC) Sheep’s fescue Purple moor grass Heath rush Stiff sedge Common bentCharacteristics Perennial Creeping rootstock Hairless Short membranous ligule Heath bedstraw Steeper insolated slope Densely tufted perennial Die back Degraded moorland Tussock forming perennial Persistence Tormentil Bed of Sphagnum moss Creeping (Plant) Dominant (Species) Mosaic of different grassland types Landform Climate Hydrology Biotic factor Large herbivore Uniformly foraging Vegetation mosaic Sheltered areas Preferred patch Favoured plant species Foraging decision Hierarchy of scales Regional system Landscape system Feeding station Habitat quality Grazing management Ungrazed Varied grazing regime Arthropod Use of suction sampling Sward height profile Multitrophic interaction Grazing intensity and seasonality Habitat structure Plant species composition Soil density Root composition Moisture Foliar insect Below-ground insect Foliar arthropod predator Bird foraging Manipulation of grazing intensity Species of grazer Commercial stock density Botanical survey Paired replicate blocks Sampling point Botanical composition Vegetation response Herbivore grazing Patch selectivity Grazing management Arthropod biomass Pipit egg Contrasting habitat structure Close proximity Competitive dominance
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Glaswelltir ucheldirol Rhywogaeth ddiffiniol Cymuned blanhigol cysylltiedig ‘Gyrrwyr’ anfiotig a biotig Pori llysysydd Glaswelltir asidig ucheldirol Ecosystem glaswelltir Glaswelltir lled-naturiol Calchgar Mesotroffig Calchgas Cymuned glaswelltir calchaidd Glaswelltir sialc Llac twyni tywod yn gyfoethog mewn calsiwm Cyfoeth rhywogaethau Gweirglodd ucheldir Gweirglodd wlyb isledirol Cawnen ddu Peiswellt melys Glaswelltir ucheldirol wedi’i wella Porfa rhygwellt-rhonwellt-Meillion Dosbarthiad Llystyfiant Cenhedlaethol Peiswellt y defaid Glaswellt y bwla Brwynen droellgoryn Hesgen anystwyth Maeswellt cyffredinNodweddion Lluosflwydd Creeping rootstock Di-flew Llabed pilennaidd byr Briwydden y rhostir Llechwedd serth wedi darheulo Lluosflwydd tuswog dwys Gwywiad Rhostir diraddiedig Lluosflwydd sy’n ffurfio twffyn Dyfalbarhad Tresgl(au) Gwely o figwyn Ymledol Dominyddol Mosaig o wahanol fathau o laswelltir Tirffurf(iau) Hinsawdd Hydroleg Ffactor(au) biotig Llysysydd mawr Pori’n unffurf Mosaig llystyfol Ardal(oedd) cysgodol Darn ffafriedig Rhywogaeth planhigol ffafriedig Penderfyniad pori Hierarchaeth o raddfeydd System ranbarthol System dirweddol Safle bwydo Ansawdd cynefin Rheolaeth pori Heb ei borri Cyfundrefn bori amrywiol Arthropod(au) Defnydd o samplu sugno Proffil uchder tywarchen Rhyngweithiad amldroffig Dwysedd a nature dymhorol pori Strwythur cynefin Cyfansoddiad rhywogaethau planhigol Dwysedd pridd Cyfansoddiad gwreiddiau Lleithder Pryfyn deiliol Pryfyn islaw’r pridd Ysglyfaethwr arthropod deiliol Pori gan adar Trin a newid dwysedd pori Rhywogaeth o borwr Dwysedd stocio masnacholArolwg fotanegol Bloc ailadrodd wedi’i baru Pwynt samplu Cyfansoddiad botanegol Ymateb llystyfiant Pori gan lysysyddion Detholusrwydd o ddarnau Rheolaeth pori Biomŕs arthropod Wŷ corhedydd Strwythur cynefin cyferbynniol Agosrwydd agos Goruchafiaeth cystadleuol
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