Results 121 to 130 of about 71,862 (331)
Montane lakes (lagoons) of the New England Tablelands Bioregion [PDF]
The vegetation of montane lagoons of the New England Tablelands Bioregion, New South Wales is examined using flexible UPGMA analysis of frequency scores on all vascular plant taxa, charophytes and one liverworts.
Bell, Dorothy M.+2 more
core
New species and records of Stenus (Nestus) of the canaliculatus group, with the erection of a new species group (Insecta: Coleoptera: Staphylinidae: Steninae) [PDF]
The canaliculatus species group of Stenus (Nestus) is redefined. Four new Palaearctic species of the group are described and illustrated: S. (N.) alopex sp. nov. from the Putorana Highland and Taymyr Peninsula, Russia; S. (N.) canalis sp. nov.
Ryvkin, Alexandr Borisovich
core +3 more sources
Revealing hidden sources of uncertainty in biodiversity trend assessments
Idiosyncratic decisions during the biodiversity trend assessment process may limit reproducibility, whilst ‘hidden' uncertainty due to collection bias, taxonomic incompleteness, and variable taxonomic resolution may limit the reliability of reported trends.
Martin A. Wilkes+6 more
wiley +1 more source
The purpose of the study was to compare two taxonomically close species of sedges - Carex arenaria and Carex ligerica. The analysis was based on 6 characters of leaves. The populations studied were grown for the period of at least one year under the same
Lech Urbaniak
doaj +1 more source
Carex muricata aggr. Artbeschreibung: 20-100 cm hoch, Stängel oben rau, am Grund mit Faserschopf. Blätter 2-5 mm breit, flach. Gesamtblütenstand zylindrisch, 3-10 cm lang und 0,5-1 cm dick, mit zahlreichen, sitzenden Ährchenknäueln oder Einzelährchen, diese unten weiblich, oben männlich. Narben 2. Deckspelzen gelb- bis dunkelbraun, spitz.
Konrad Lauber+2 more
openaire +2 more sources
Project Chariot - Phase III: Progress Report [PDF]
This is a preliminary report and is NOT FOR PUBLICATIONBotanical investigations of the Cape Thompson - Ogotoruk Creek region of northwest Alaska were initiated in May, 1959 by the University of Alaska under contract with the United States Atomic ...
Johnson, R.E.+2 more
core
Effect of Carex rostrata on seasonal and interannual variability in peatland methane emissions [PDF]
Peatlands are a large natural source of atmospheric methane (CH4), and the sedge Carex rostrata plays a critical role in the production, oxidation, and transport of CH4 in these systems.
Bubier, Jill L.+3 more
core +2 more sources
Understanding how historical versus contemporary processes shape population genetic structure and diversity is important to design effective management actions for threatened species. We genotyped 1834 SNPs in 1120 individuals from 110 Scandinavian populations of the declining orchid Gymnadenia conopsea, in three different habitat types, to examine ...
Linus Söderquist+5 more
wiley +1 more source
The phytosociology of calcareous grasslands in the British Isles. [PDF]
The thesis attempts a broad overall survey and classification according to the Zurich-Montpellier system ofplant sociology, of limestone grassland vegetation in the British Isles The classification is based on some 535 grassland Aufnahmen and 75 ...
Shimwell, David William
core +1 more source
On the Occurrence of \u3ci\u3eOarisma Garita\u3c/i\u3e (Reakirt) (Lepidoptera: Hesperiidae) in Manitoulin District, Ontario [PDF]
(excerpt) On 26 June, 1976, I stopped to examine plants and collect insects on the alvars or limestone barrens on Great La Cloche Island, north of Little Current in Manitoulin District, Ontario.
Catling, Paul M
core +2 more sources