Martin Diekmann

TL;DR: In this paper, a review of the use of weighted site averages in indicator analysis is presented, showing that these have a high reliability and can complement or, in some cases, replace measurements to determine the values of environmental variables and monitor their change.

TL;DR: In this paper, the negative impact of nitrogen (N) deposition on species richness in acidic grasslands was investigated based on a temporal comparison of vegetation data spanning a period of almost 70 years, in which a large data base of plots assigned to the Violion caninae grassland type, composed of managed, but unfertilized semi-natural grasslands on nutrient-poor, acidic soils.

TL;DR: The results of this survey suggest that the impacts of nitrogen deposition can be observed over a large geographical range, suggesting that to protect the most sensitive grasslands resources should be focussed where deposition is currently low.

TL;DR: The synthesis indicates that many life-history traits of plants vary with latitude but the translation of latitudinal clines into responses to temperature is a crucial step, and integrated approaches of observational studies along temperature gradients, experimental methods and common garden experiments increasingly emerge as the way forward to further the authors' understanding of species and community responses to climate warming.

TL;DR: Approaches based on life-history traits potentially allow prediction of species' responses to habitat fragmentation and may therefore aid in the assessment of the endangerment of plant species and ultimately in the conservation of biological diversity.