Sentences with phrase «recording changes in ecosystems»

We learned that bird populations in the North Sea collapsed last year, after the sand eels on which they feed left its warmer waters - and how the number of scientific papers recording changes in ecosystems due to global warming has escalated from 14 to more than a thousand in five years.

Not exact matches

A record of changing climate in the Olduvai Gorge suggests early humans had to adapt to shifting ecosystems

The satellite - based record of land surface maximum temperatures, scientists have found, provides a sensitive global thermometer that links bulk shifts in maximum temperatures with ecosystem change and human well - being.

However, a team of geographers from the universities of Jena and Oxford, and from Germany's Federal Institute for Geosciences and Natural Resources, has now succeeded in establishing a methodology that enables them to measure the aboveground biomass of the savannahs and record even minor changes in the ecosystem.

An alternative hypothesis is that the Gulf of Mexico ecosystem may have changed over the past seven decades since the Herrera film was recorded, and can no longer support the abundance of Kemp's ridleys documented in the 1947 film.

«Fossil record should help guide conservation in a changing world: Focus on saving resilient ecosystems as well as species, say experts from many disciplines.»

Changes in the composition of pollen contents (revealing many species and ecosystems) during the ages (geological record) may show more subtle variances in climatic conditions.

The session explores regional integration of records and dynamic modeling to: (1) understand better the nature of climate - human - ecosystem interactions; (2) quantify the roles of different natural and anthropogenic drivers in forcing environmental change; (3) examine the feedbacks between anthropogenic activity and the natural system and; (4) provide integrated datasets for model development and data - model comparisons.

Changes in the composition of pollen contents (revealing many species and ecosystems) during the ages (geological record) may show more subtle variances in climatic conditions.

While record - breaking warming is being felt on land, most of the extra heat energy being trapped in our atmosphere is being stored deep into our oceans causing rapid changes and the decline of key ecosystems.

Scientific American: A record of changing climate in the Olduvai Gorge suggests early humans had to adapt to shifting ecosystems.

It features chapters on: the year in review, which highlights environmental extremes, including record extreme weather and climate events and increasing degradation of marine ecosystems, but notes progress towards new investments in renewable energy and towards a green economy; the benefits of soil carbon; the closing and decommissioning of nuclear power reactors; and on key environmental indicators, which underscores the need to address mounting challenges, such as climate change, biodiversity loss, and land and soil degradation.

«Carbon choices determine US cities committed to futures below sea level» «Economic impacts of climate change in Europe: sea - level rise» «Future flood losses in major coastal cities» «Forecasting the effects of accelerated sea - level rise on tidal marsh ecosystem services» «Coral islands defy sea - level rise over the past century: Records from a central Pacific atoll»

«This record is the first evidence that carbon dioxide may be linked with environmental changes, such as changes in the terrestrial ecosystem, distribution of ice, sea level and monsoon intensity.»

Contrary to the reported trends in open - ocean pH, none of the available records of long - term pH change in coastal ecosystems, that we are aware of, show the decline expected from OA alone (Provoost et al. 2010; Fig. 3).

Given the lack of detailed proxy records to trace simultaneously biochemical baselines and length of food webs, assessing the extent to which biogeochemical cycling and community structure in pelagic ecosystems have changed over the past century is difficult, as is attributing change to natural cycles versus anthropogenic disturbances.

Although historical records indicate that atmospheric CO2 concentrations and sea surface temperatures have undergone significant oscillations and have exceeded present - day levels in the past [3,4], it is the unprecedented rates of change that are fuelling concerns over whether organisms will retain the capacity to mediate vital ecosystem functions and services [5,6].

Joël Guiot and Wolfgang Cramer report in the journal Science that they sifted the evidence from pollen cores and other telltale climatic indicators and modelled the pattern of ecosystem change through the Neolithic, the Bronze Age and recorded human history.