Sentences with phrase «phenology in»

We might be tempted to simply include dynamic phenology in a climate model for all applications (again, assuming we can realistically simulate leaf variations).

Intercomparison, interpretation, and assessment of spring phenology in North America estimated from remote sensing for 1982 to 2006.

Here, we analyze a 28 - year record of tropical flower phenology in response

Here, we analyze a 28 - year record of tropical flower phenology in response to anthropogenic climate and atmospheric change.

Not exact matches

«As phenology is advancing around the globe, there are concerns that plant - pollinator interactions may be disrupted through phenological mismatches, or mismatches in the timing of when flowers bloom and their pollinators emerge, leading to reduced plant reproduction,» says lead author Zak Gezon, who conducted the research as a doctoral student at Dartmouth and who is now a conservation biologist with Disney's Animal Programs.

«What's happening is that the Earth is warming,» said Jake Weltzin, director of the National Phenology Network, a federal program that tracks changes in seasonal patterns.

«Novel data sources from the weather surveillance radar network and the eBird citizen science database enable development of a migration phenology index that can be used to answer this question in future studies.»

OU Professors Jeffrey F. Kelly, Todd Fagin and Eli S. Bridge, Oklahoma Biological Survey, and graduate student Kyle G. Horton, Department of Biology, OU College of Arts and Sciences; in collaboration with OU Professors Phillip B. Chilson, School of Meteorology, and Kirsten de Beurs, Department of Geography and Environmental Sustainability, OU College of Atmospheric and Geographic Sciences; and Phillip M. Stepanian, formerly with the Advanced Radar Research Center, worked together to demonstrate how migration timing relates to land surface phenology and temperature changes.

Phenology, the study of timing in the life of plants and animals, has been disrupted by climate change.

Climate conditions in Kansas have already been noted to have changed in noticeable ways, and many such conditions are known to favorably affect tick phenology and spatial distribution.»

These models can then be mapped against climate forecasts to predict how phenology could shift in the future, painting a picture of landscapes in a world of warmer temperatures, altered precipitation and humidity, and changes in cloud cover.

In addition to replacing the original maize phenology model in CLM with that from the APSIM model, the researchers have made several other innovative improvements in the new modeIn addition to replacing the original maize phenology model in CLM with that from the APSIM model, the researchers have made several other innovative improvements in the new modein CLM with that from the APSIM model, the researchers have made several other innovative improvements in the new modein the new model.

The sensitivity of leaf unfolding phenology to climate warming has significantly declined since 1980s, according to a study recently published in the journal Nature by an international collaboration of scientists.

To check whether warm winters have already attenuated the advance in spring phenology, an international team of researchers from China, Belgium, France, Spain, Switzerland and Germany investigated the change in the sensitivity of leaf unfolding to climate warming using long - term observations for seven dominant European tree species at 1245 sites in Central Europe.

The study provides the first large - scale empirical evidence for a declining sensitivity of spring phenology to warming in mature trees for Central Europe.

For this work, the ITC researchers worked with the USA National Phenology Network (USANPN) and earlier this year they published a quality - checked phenological dataset in Scientific Data.

«Furnas and McGrann provide a textbook example of how to detect differences in the timing of nesting among bird species using information on the peak date of singing derived from surveys and automated recorders,» according to UC Berkeley's Steve Beissinger, an expert on avian phenology who was not involved in the study.

ABSTRACT: French records of grape - harvest dates in Burgundy were used to reconstruct spring - summer temperatures from 1370 to 2003 using a process - based phenology model developed for the Pinot Noir grape.

In a warming climate, the timing of activity (i.e., phenology) of plants and pollinators is expected to shift, but these shifts may not be synchronized with one another (Burkle and Alarcon 2011; Burkle et al. 2013; Rafferty et al. 2013).

2) Effects of climate change on phenology and carbon cycles in forests.

In contrast to a number of phenological studies showing nonlinear relationships between phenology and temperature, due largely to unmet chilling and photoperiod requirements, our findings demonstrate the relationship to be linear and to explain most of the variation in flowerinIn contrast to a number of phenological studies showing nonlinear relationships between phenology and temperature, due largely to unmet chilling and photoperiod requirements, our findings demonstrate the relationship to be linear and to explain most of the variation in flowerinin flowering.

1]-RRB- dispersal are detailed in Table II; the elements of plant strategies are: PT is plant type, sm is shoot morphology, lf is leaf form, c is canopy, loep is length of established phase, lor is lifetime of roots, lp is leaf phenology, rop is reproductive organ phenology, ff is flowering frequency, poaps = proportion of annual production for seeds, podup is perennating organs during unfavourable periods, rs is regenerative strategy, mpgr is mean potential growth rate, rrd is response to resource depletion, pumn is photosynthetic uptake of mineral nutrients, ac is acclimation capacity, sop is storage of photosynthates, lc is litter characteristic, psh is palatability to non-specific herbivores and nDNA is nuclear DNA amount.

The USA National Phenology Network monitors the status of spring in the form of first - leaf and first - bloom indexes.

[Response: You fail to see that ocean temperatures, satellite measurements, glacier melting, Arctic ice retreat, changes in phenology are all consistent with a warming planet.

French records of grape - harvest dates in Burgundy were used to reconstruct spring - summer temperatures from 1370 to 2003 using a process - based phenology model developed for the Pinot Noir grape.

ABSTRACT: French records of grape - harvest dates in Burgundy were used to reconstruct spring - summer temperatures from 1370 to 2003 using a process - based phenology model developed for the Pinot Noir grape.

You can check the scientific literature on this topic by going to Google Scholar and typing in «seasonal phenology and climate change» I got a little over 22,000 hits on this topic.

I've been at scientific meetings in the US and Europe where highly detailed studies of range expansion and phenology shifts are documented with data, often with data sets of 20 - 40 or more years.

Does it line up with our ocean data sets, our satellite data sets, boreholes and our 100s of records of changes in species behaviour and phenology.

We present an integrated modeling study designed to investigate changes in ecosystem level phenology over Europe associated with changes in climate pattern, by the North Atlantic Oscillation (NAO).

Change in snow phenology and its potential feedback to temperature in the Northern Hemisphere over the last three decades.

Combine the satellite trend with the surface observations and the umpteen non-temperature based records that reflect temperature change (from glaciers to phenology to lake freeze dates to snow - cover extent in spring & fall to sea level rise to stratospheric temps) and the evidence for recent gradual warming is, well, unequivocal.

«Our study clearly showed that European migratory bird species with declining breeding populations in Europe in the last decades (1990 — 2000) responded the least to recent climate change as reflected by the temporal trend in spring migration phenology, or even delayed their timing of spring migration, whereas species with stable or increasing populations advanced migration.»

The results suggest that the much earlier calculated arrival to southern Sweden among short - distance migrants mirrors a change in location of wintering areas, hence, connecting migration phenology and wintering range shifts.»

Interestingly, the results further suggest that climate change has affected the phenology of short - distance migrants more in southern than in central Sweden.

The regional arrays provide a sampling of ocean conditions around the world that is designed to produce an integrated data set that can be used to address questions related to physical - biogeochemical coupling in eddies, phytoplankton phenology (cyclic and seasonal phenomena), nutrient supply, and climate effects on ocean carbon cycling in selected regions.

Climate change and shifts in spring phenology of three horticultural woody perennials in northeastern USA

Projected values, based on CMIP5 model, RCP 8.5 scenario, are as calculated by the author of» Spring plant phenology and false springs in the conterminous U.S. during the 21st century.»

A study by a group of scientists of the G.B. Pant Institute of Himalayan Environment and Development, Almora, has generated evidences of changes in flowering phenology [continue reading...]

«The study, carried out by 12 research groups, showed — for the first time — an acceleration in seasonal timings (phenology) at an environment - wide scale.

Thousands of species have reacted to a changing climatic regime by altering their geographic range, abundance, phenology (seasonal patterns), phenotype, or genotype, or in some cases recorded in the fossil record, have become extinct (Barnosky, 1986, 2009; Barnosky et al., 2003; Blois and Hadly, 2009; Brook and Barnosky, 2012; Hadly et al., 2004; Harnik et al., 2012; Pandolfi et al., 2011; Parmesan, 2006; Parmesan and Yohe, 2003; Root et al., 2003; Walther et al., 2002; Moritz et al., 2008).

Changes in the timing of biological events are of particular concern because of a potential disconnect between migrants and their food resources if the phenology of each advances at different rates (Inouye et al., 2000; Root et al., 2003; Visser et al., 2004).

To quantify the contribution of the UHI effect to phenological variation is therefore another hot topic for the future in the field of phenology.»

Researchers also uncovered shifts in seasonal behavior, or phenology, such as breeding, egg - laying and migration.

... geographical distribution and seasonal phenology of target organisms in relation to climate.

Ice and phenology aren't so useful for detection in that sense because they are qualitative measures and it's hard to extract relative magnitudes or spatial patterns from them.

It is no surprise therefore that coastal marine species have shown some of the fastest responses to climate change in any system, with species - specific responses to thermal stress causing poleward shifts in biogeographic distributions towards cooler environments, as well as changes in phenology and regime shifts.

There are numerous studies of phenology (study of the timing of periodic biological / ecological events) that demonstrate damage to specific species and ecosystems, because of changes in the timing of migration, reproduction, and arrival of prey species.

Using an ensemble of eight models calibrated only for phenology or five models calibrated in detail resulted in the uncertainty equivalent to that of the measured yield in well - controlled agronomic field experiments.