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Linking climate change to lemming cycles
It is shown that winter weather and snow conditions, together with density dependence in the net population growth rate, account for the observed population dynamics of the rodent community dominated by lemmings in an alpine Norwegian core habitat between 1970 and 1997, and predict the observed absence of rodent peak years after 1994.
The elevation gradient of lichen species richness in Nepal
The highest lichen richness at mid altitudes concurred with the highest diversity of ecological niches in terms of spatial heterogeneity in rainfall, temperature, cloud formation, as well as high phorophyte abundance and diversity implying large variation in bark roughness, moisture retention capacity, and pH.
Primary Succession of Soil Mites (Acari) in a Norwegian Glacier Foreland, with Emphasis on Oribatid Species
Although there exist few earlier studies on mite succession in glacial foreland soil, mites are clearly among the earliest colonizers along receding glaciers.
The fossil oribatid mite fauna (Acari: Oribatida) in late-glacial and early-Holocene sediments in Kråkenes Lake, western Norway
The oribatid fossils of the pioneer phase indicate habitats and climate similar to the mid-alpine zone in western Norway today, the Allerod interstadial that of the low- to mid- alpine zone.
Predation by beetles (Carabidae, Staphylinidae) on eggs and juveniles of the Iberian slug Arion lusitanicus in the laboratory
In laboratory experiments, whether five common predator beetles would feed on eggs and juveniles of A. lusitanicus using beetle predators was tested and a significant preference for slugs smaller than one gram was evident for C. nemoralis, while the other beetles struggled much more to overcome the mucus of juvenile slugs.
Overwintering of terrestrial Arctic arthropods: the fauna of Svalbard now and in the future
There are over 500 species of arthropods recorded from Svalbard. These animals overwinter either within the soil or on the ground surface, and have to tolerate an environment where the ground is
Population dynamics and life history of the oribatid mite Ameronothrus lineatus (Acari, Oribatida) on the high arctic archipelago of Svalbard
The synchronous moult is suggested to be a phenological strategy to exploit the short arctic summer by timing moulting with the warmest part of the season.
Effects of experimentally increased calcium levels in the litter on terrestrial snail populations
It is concluded that addition of calcium to the forest floor in these woods will change the chemical composition of the litter layer and increase the direct availability of calciumTo the snails and negative correlation with amount of phosphorus could be seen.