0 results — topic: Sunbury Public Ramp
Spatial scaling in ecology
Acts in what Hutchinson (1965) has called the 'ecological theatre' are played out on various scales of space and time. To understand the drama, we must view it on the appropriate scale. Plant ecologists long ago recognized the importance of sampling scale in their descriptions of the dispersion or d
TRY plant trait database - enhanced coverage and open access
Plant traits-the morphological, anatomical, physiological, biochemical and phenological characteristics of plants-determine how plants respond to environmental factors, affect other trophic levels, and influence ecosystem properties and their benefits and detriments to people. Plant trait data thus
Generalization in pollination systems, and why it matters
One view of pollination systems is that they tend toward specialization. This view is implicit in many discussions of angiosperm evolution and plant—pollinator coevolution and in the long—standing concept of pollination syndromes. But actual pollination systems often are more generalized and dynamic
Quantifying global soil carbon losses in response to warming
A comprehensive analysis of warming-induced changes in soil carbon stocks is presented by assembling data from 49 field experiments, finding that the effects of warming are contingent on the size of the initial soil carbon stock, with considerable losses occurring in high-latitude areas.
Convergence across biomes to a common rain-use efficiency
It is shown that RUE decreases across biomes as mean annual precipitation increases, and during the driest years at each site, there is convergence to a common maximum RUE (RUEmax) that is typical of arid ecosystems.
Plastic rain in protected areas of the United States
Here, there, and everywhere No place is safe from plastic pollution. Brahney et al. show that even the most isolated areas in the United States—national parks and national wilderness areas—accumulate microplastic particles after they are transported there by wind and rain (see the Perspective by Roc
Effects of climate change on phenology, frost damage, and floral abundance of montane wildflowers
The timing of life history traits is central to lifetime fitness and nowhere is this more evident or well studied as in the phenology of flowering in governing plant reproductive success. Recent changes in the timing of environmental events attributable to climate change, such as the date of snowmel
Plot-scale evidence of tundra vegetation change and links to recent summer warming
Microbes on mountainsides: contrasting elevational patterns of bacterial and plant diversity
The study of elevational diversity gradients dates back to the foundation of biogeography. Although elevational patterns of plant and animal diversity have been studied for centuries, such patterns have not been reported for microorganisms and remain poorly understood. Here, in an effort to assess t
Social network analysis of animal behaviour: a promising tool for the study of sociality
A prospective overview of social network analysis' general utility for the study of animal social behaviour is provided and relevance and constraints of some network measures are highlighted.
Shifts in lake N:P stoichiometry and nutrient limitation driven by atmospheric nitrogen deposition
Nitrogen Overload The cycling of essential nutrients in terrestrial ecosystems has been altered by human activities. Elser et al. (p. 835 ) report a comparative analysis of lakes in Norway, Sweden, and in the United States that suggests that this is also true in aquatic ecosystems such as lakes. Dep
Detectability, philopatry, and the distribution of dispersal distances in vertebrates
The inadequacy of dispersal data obtained directly by traditional methods using population studies of marked individuals is highlighted by comparing the resulting distributions with dispersal estimates obtained by radio-tracking and by using genetic estimates of gene flow.
Global warming and terrestrial ecosystems: a conceptual framework for analysis
raise global mean temperature over the next century by 1.0–3.5 °C (Houghton et al. 1995, 1996). Ecologists from around the world have begun experiments to investigate the effects of global warming on terrestrial ecosystems, the aspect of global climate change that attracts the most public attention
Toward a synthetic understanding of the role of phenology in ecology and evolution
Phenology affects nearly all aspects of ecology and evolution. Virtually all biological phenomena—from individual physiology to interspecific relationships to global nutrient fluxes—have annual cycles and are influenced by the timing of abiotic events. Recent years have seen a surge of interest in t
Plant functional trait change across a warming tundra biome
Biome-wide relationships between temperature, moisture and seven key plant functional traits across the tundra and over time show that community height increased with warming across all sites, whereas other traits lagged behind predicted rates of change.
Coupled dynamics of body mass and population growth in response to environmental change
It is demonstrated how earlier emergence from hibernation and earlier weaning of young has led to a longer growing season and larger body masses before hibernation, and this helps explain how a shift in phenology can cause simultaneous phenotypic and demographic changes.
Community and Ecosystem Responses to Elevational Gradients: Processes, Mechanisms, and Insights for Global Change
Community structure and ecosystem processes often vary along elevational gradients. Their responses to elevation are commonly driven by changes in temperature, and many community- and ecosystem-level variables therefore frequently respond similarly to elevation across contrasting gradients. There ar
Climate change is affecting altitudinal migrants and hibernating species
Calendar date of the beginning of the growing season at high altitude in the Colorado Rocky Mountains is variable but has not changed significantly over the past 25 years. This result differs from growing evidence from low altitudes that climate change is resulting in a longer growing season, earlie
Acoustic monitoring in terrestrial environments using microphone arrays: applications, technological considerations and prospectus
1. Animals produce sounds for diverse biological functions such as defending territories, attracting mates, deterring predators, navigation, finding food and maintaining contact with members of their social group. Biologists can take advantage of these acoustic behaviours to gain valuable insights i
Flower constancy, insect psychology, and plant evolution
The way in which floral parameters, such as interplant distances, nectar rewards, flower morphology, and floral color affect constancy is considered, and the implications of pollinator constancy for plant evolution are discussed.
