ARCTIC FOX VS BIRD PREDATOR PREY DRIVERS

Differences in predation pressure in relation to habitat fragmentation - an experiment. Overview of the radiometric and biophysical performance of the MODIS vegetation indices.

ARCTIC FOX VS BIRD PREDATOR PREY DRIVERS

Ecosystem drivers of an Arctic fox population at the western fringe of the Eurasian Arctic. Birds of Norway (Universitetsforlaget Oslo, 1971). Suitability of artificial nests-response. A different kind of ecological modelling: the use of clay model organisms to explore predator–prey interactions in vertebrates. (Norwegian Mapping Authority: 1999).īateman, P. Assessing the effect of predator control on an endangered goose population subjected to predator-mediated food web dynamics. Indirect food web interactions mediated by predator–rodent dynamics: relative roles of lemmings and voles. How ecological neighbourhoods influence the structure of the scavenger guild in low Arctic tundra. Landscape-scale edge effect in predation risk in forest-farmland mosaics of central Europe. Corvid density and nest predation in relation to forest fragmentation: A landscape perspective. Higher predation risk for insect prey at low latitudes and elevations. Emergent rainy winter warm spells may promote boreal predator expansion into the Arctic. Changed Arctic-alpine food web interactions under rapid climate warming: Implication for ptarmigan research. Spatial pattern formation in an insect host-parasitoid system. The logic and realism of the hypothesis of exploitation ecosystems. Trophic interaction cycles in tundra ecosystems and the impact of climate change. Lower predation risk for migratory birds at high latitudes. Climate sensitivity of shrub growth across the tundra biome. Arctic ecosystem structure and functioning shaped by climate and herbivore body size. Temperature and vegetation seasonality diminishment over northern lands. Role of land-surface changes in Arctic summer warming. Nest predation research: recent findings and future perspectives. Nest predation and nest sites: New perspectives on old patterns. Avian life history evolution in relation to nest sites, nest predation, and food. Beyond predictions: Biodiversity conservation in a changing climate. Climate change and the past, present, and future of biotic interactions. Ecosystem change and stability over multiple decades in the Swedish subarctic: complex processes and multiple drivers. A boreal invasion in response to climate change? Range shifts and community effects in the borderland between forest and tundra. Common montane birds are declining in northern Europe. Lehikoinen, A., Green, M., Husby, M., Kålås, J. Birds track their Grinnellian niche through a century of climate change. Ecological dynamics across the arctic associated with recent climate change. Global pattern of nest predation is disrupted by climate change in shorebirds. Status and Trends in Arctic Biodiversity: Synthesis (Conservation of Arctic Flora and Fauna, 2013). Global mountain topography and the fate of montane species under climate change. Consistent response of bird populations to climate change on two continents. Our study contributes to an improved understanding of how climate change may affect Arctic and alpine ecosystems and threaten endemic biodiversity through a trophic cascade. Predation risk also increased steeply with altitude, implying that species at the high-altitude end of the alpine tundra ecotones are particularly vulnerable. The productivity-predation risk relation was independent of the simultaneous effects of rodent population dynamics and vegetation cover at nest sites. By exploiting landscape-scale spatial heterogeneity in areas of primary productivity across alpine tundra ecotones and supplied with experimental nests in sub-Arctic Scandinavia, we found that predation risk indeed increased with primary productivity.

Here we test the prediction from food web theory that increased primary productivity (greening of tundra) in a warming Arctic leads to a higher risk of nest predation in tundra ecosystems. Increased nest predation appears to be involved 4, but the mechanisms linking predation to climate change remain to be shown. Alarming global-scale declines of bird numbers are occurring under the changing climate 1, and species belonging to alpine and Arctic tundra are particularly affected 2, 3.

Arctic fox vs bird predator prey