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Using the satellite-derived NDVI to assess ecological responses to environmental change.
The use of the NDVI in recent ecological studies is reviewed and its possible key role in future research of environmental change in an ecosystem context is outlined. Expand
Review article. Studying climate effects on ecology through the use of climate indices: the North Atlantic Oscillation, El Niño Southern Oscillation and beyond
This work identifies issues related to: (i) spatial variation; (ii) seasonality; (iii) non–stationarity; (iv) nonlinearity; and (v) lack of correlation in the relationship between global and local climate. Expand
Ecological Effects of Climate Fluctuations
This work reviews how two of the best-known climate phenomena—the North Atlantic Oscillation and the El Niño–Southern O oscillation—affect ecological patterns and processes in both marine and terrestrial systems. Expand
It is shown how functional responses in habitat use (i.e., change in preference with availability of one of two main habitat types) may be tested and how binomial logit models can be used to regress proportionate use of a habitat type against the proportion of that habitat available. Expand
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. Expand
A Migratory Northern Ungulate in the Pursuit of Spring: Jumping or Surfing the Green Wave?
It is concluded that whereas in some systems migration itself is a way to surf the green wave, in others it may simply be a means to reconnect with phenological spring at the summer range, in the light of ubiquitous anthropogenic environmental change. Expand
Temporal and spatial development of red deer harvesting in Europe: biological and cultural factors
Summary 1. Deer numbers have increased dramatically throughout Europe and North America over the last century, but empirical analyses of variation in harvesting and the influence of biological andExpand
Importance of climatological downscaling and plant phenology for red deer in heterogeneous landscapes
An increasing NAO results in a spatially more variable phenology, offering migrating deer an extended period with access to high-quality forage leading to increased body mass, and the importance of incorporating spring as well as the interaction between winter climate and topography when aiming at understanding how plant and animal respond to climate change. Expand
Phylogeography of red deer (Cervus elaphus) in Europe
Local phylogeographical patterns observed in Europe to the post-glacial recolonization process, shaped by the geographical localization of refugia and barriers to gene flow, are linked to the historical processes shaping the present patterns. Expand
Partial migration in expanding red deer populations at northern latitudes – a role for density dependence?
It is suggested that a combination of avoidance of competition in high density winter ranges, social fencing during summer in addition to the forage maturation and predation risk avoidance hypotheses, is needed to explain migration patterns of northern ungulates. Expand