R. Hartig results 13
· Newest (Page 1/1, per page 25)
Author: R. Hartig ×Clear All Filters
Search Results
Consequences of Local Conspecific Density Effects for Plant Diversity and Community DynamicsNARA Subscribed
Conspecific density dependence (CDD) in plant populations is widespread, most likely caused by local‐scale biotic interactions, and has potentially important implications for biodiversity, community composition, and ecosystem processes. However, progress in this important area of ecology has been hindered by differing viewpoints on CDD across subfields in ecology, lack of synthesis across CDD‐related frameworks, and misunderst...
Forest models are instrumental for understanding and projecting the impact of climate change on forests. A considerable number of forest models have been developed in the last decades. However, few systematic and comprehensive model comparisons have been performed in Europe that combine an evaluation of modelled carbon and water fluxes and forest structure. We evaluate 13 widely used, state‐of‐the‐art, stand‐scale forest model...
Climate‐driven, but dynamic and complex? A reconciliation of competing hypotheses for species’ distributionsNARA Subscribed
Estimates of the percentage of species “committed to extinction” by climate change range from 15% to 37%. The question is whether factors other than climate need to be included in models predicting species’ range change. We created demographic range models that include climate vs. climate‐plus‐competition, evaluating their influence on the geographic distribution of Pinus edulis , a pine endemic to the semiarid southwestern U....
Ecologists increasingly rely on complex computer simulations to forecast ecological systems. To make such forecasts precise, uncertainties in model parameters and structure must be reduced and correctly propagated to model outputs. Naively using standard statistical techniques for this task, however, can lead to bias and underestimation of uncertainties in parameters and predictions. Here, we explain why these problems occur a...
Hurricane Sandy Effects on Coastal Marsh Elevation ChangeNARA Subscribed
Parameter and uncertainty estimation for process‐oriented population and distribution models: data, statistics and the nicheNARA Subscribed
The spatial distribution of a species is determined by dynamic processes such as reproduction, mortality and dispersal. Conventional static species distribution models (SDMs) do not incorporate these processes explicitly. This limits their applicability, particularly for non‐equilibrium situations such as invasions or climate change. In this paper we show how dynamic SDMs can be formulated and fitted to data within a Bayesian...
Multifunctional Nanoparticulate Polyelectrolyte ComplexesNARA Subscribed
Multifunctional Nanoparticulate Polyelectrolyte ComplexesNARA Subscribed
Previous1Next