Leaf carbon isotope discrimination (Δ¹³ C) varies with the balance between net photosynthesis (A) and stomatal conductance ${\rm{(g}}_{\rm{s}} ).$ Inferences that can be made with Δ¹³C are limited, as ...

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As long as there has been the legend of Santa Claus, there has been curiosity about what he does in the off-season. We all see pictures of Santa at the beach, but I would like to think and hope that ...

Ellesmere Island in the Canadian Arctic: Salix arctica is the dominant shrub species The low-lying shrubs, grasses and other plants growing in the Arctic are getting taller. The finding comes from ...

1. Under cold conditions, such as prevail during the arctic summer, plant activity is especially sensitive to small temperature changes; consequently, temperature conditions are of critical importance ...

The timing of spring in the Arctic has become more and more erratic in the past 25 years, leading to growing discrepancies between the behaviour of animals and plants and the conditions they depend on ...