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Ecosystems in Medical News

New study shows extent of harmful human influences on global ecosystems

More than 40 percent of the worlds oceans are heavily impacted by human activities, including overfishing and pollution, according to a new study that will appear in tomorrows peer-reviewed journal Science. Dr. Kenneth Casey, with NOAAs National Oceanographic Data Center in Silver Spring, Md....

Global Seagrass Decline Affects Shallow-water Ecosystems

Disappearance of seagrass beds around the world has resulted in sharp decline in important habitats, food sources and sediment stabilizers affecting the shallow-water ecosystems // , according to Frederick Short, researcher of natural resources and marine science, University of New Hampshire. ...

There's a sensor in your pocket

... invisible. "Participatory Sensing" allows individuals to identify, measure, and address problems as diverse as air pollution or the damage to fragile ecosystems using mobile phones with basic sensing and communication systems like cameras, global positioning systems (GPS), and text messaging. A new paper, "...

Discovery in amber reveals ancient biology of termites

...lions of years later. This phenomenon has been invaluable in scientific and ecological research, and allows researchers to characterize the biology of ecosystems that existed millions of years ago. The amber that contained the termite used in this study came from a mine first excavated in 2001 in the Hukawng...

Landmark USGS study

...s from the consumption of marine fish and shell fish. Scientists have known for some time that mercury deposited from the atmosphere to freshwater ecosystems can be transformed (methylated) into methylmercury, but identifying the analogous cycles in marine systems has remained elusive. As a result of this s...

The Leona M. and Harry B. Helmsley Charitable Trust Donates $136 Million to Charities

...g providing funds to programs that promote youth educational opportunities. In the area of conservation, grants will help to preserve threatened ecosystems by creating partnerships that address the root causes leading to their destruction. The initial conservation work of the Trust will focus on supporti...

Federal funding gap cited for research on human health impacts due to climate change

...ases associated with exposure to ozone and allergens from the air. Health effects are also likely to result from altered air, water, agriculture, and ecosystems processes, according to the report. "This paper highlights the gap in our understanding of current impacts of climate on health, and how those imp...

Papua New Guinea declares first national conservation area

...nea, home to some of the most biologically diverse ecosystems on Earth, has created its first national conservat...protect their forest homeland and the wildlife and ecosystems so vital to their culture and sustenance. While...es of the YUS region for protecting such essential ecosystems and all the benefits they provide. Hopefully, othe...

Purdue study projects weakened monsoon season in South Asia

...n the rainy periods. Noah Diffenbaugh, whose research group led the study, said the summer monsoon affects water resources, agriculture, economics, ecosystems and human health throughout South Asia. "Almost half of the world's population lives in areas affected by these monsoons, and even slight deviation...

Study of ancient and modern plagues finds common features

...ing the pandemic of 1918-19. Other factors underlying many instances of emergent diseases are poverty, lack of political will, and changes in climate, ecosystems and land use, the authors contend. "A better understanding of these determinants is essential for our preparedness for the next emerging or re-emergin...
Ecosystems in Medical Dictionary

Invasive

... thrive and spread aggressively outside its natural range. ... Some invasive plants are worse than others. ... Aims to reduce threats to natural ecosystems and the native species they contain by increasing awareness of invasions, and of ways to prevent, control, or ... Invasive Species Advisory Comm...
Ecosystems in Biological News

Yale study: Most polluted ecosystems recoverable

New Haven, Conn.Most polluted or damaged ecosystems worldwide can recover within a lifetime if societies commit to their cleanup or restoration, according to an analysis of 240 independent studies by researchers at the Yale School of Forestry & Environmental Studies. Their findings will appear in ...

Study: Future snowmelt in West twice as early as expected; threatens ecosystems and water reserves

WEST LAFAYETTE, Ind. - According to a new study, global warming could lead to larger changes in snowmelt in the western United States than was previously thought, possibly increasing wildfire risk and creating new water management challenges for agriculture, ecosystems and urban populations. Re...

New report available on ecosystems and climate change

(Washington, D.C. June 20, 2008) The U.S. Environmental Protection Agency has released a report that can help reduce the potential impact of climate change on estuaries, forests, wetlands, coral reefs, and other sensitive ecosystems. The report, entitled Preliminary Review of Adaptation Options ...

The Economics of Ecosystems and Biodiversity- TEEB

At CBD COP 9 today, 29th May, a report setting out a "comprehensive and compelling economic case for the conservation of biodiversity" was presented by the report's author Mr. Pavan Sukhdev. The work was launched in 2007 by Minister Sigmar Gabriel of Germany and Stavros Dimas the Commissioner resp...

Ancient ecosystems organized much like our own

It was an Anomalocaris-eat-trilobite world, filled with species like nothing on today's Earth. But the ecology of Cambrian communities was remarkably modern, say researchers behind the first study to reconstruct detailed food webs for ancient ecosystems. Their paper, published this week in the ope...

Rats on islands disrupt ecosystems from land to sea, researchers find

SANTA CRUZ, CA--Seabird colonies on islands are highly vulnerable to introduced rats, which find the ground-nesting birds to be easy prey. But the ecological impacts of rats on islands extend far beyond seabird nesting colonies, according to a new study by researchers at the University of Californ...

Adapting local ecosystems can soften impact of global climate change

BOSTON -- Think globally, act locally makes for a nice bumper sticker but is it an effective policy for coping with global climate change? Can local actions make a difference in a process principally driven by worldwide trends? The short answer is no, according to the Intergovernmental Panel ...

First map of threats to marine ecosystems shows all the world's oceans are affected

CHAPEL HILL As vast and far-reaching as the worlds oceans are, every square kilometer is affected by human activities, according to a study in the journal Science by researchers at the University of North Carolina at Chapel Hill and others. The international team of scientists integrated globa...

At the root of nutrient limitation, ecosystems are not as different as they seem

TEMPE, Ariz. -- Anyone who has thrown a backyard barbecue knows that hot dogs are inexplicably packaged in different numbers than buns eight hot dogs per pack versus 10 hot dog buns. Put in ecological terms, this means that weenie roasts are hot-dog limited the extra buns are worthless without h...

University of Miami receives stimulus funds for study of hurricane impacts on structures, ecosystems

MIAMI Hurricanes are the costliest natural disasters that strike the United States. A better understanding of how structures withstand -- or fail to withstand a hurricane could lead to improved construction standards and practices designed to protect human lives and enhance resiliency. The N...

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Ecosystems in Biological Technology

Model predicts evolution of Mediterranean landscape following fires

...persal of plants (by shoots or seeds), their distribution over space and time, and the resources they compete for (primarily light and water). Such ecosystems can generally evolve from grassland to scrubland (with rock rose, lavender and broom), later to transitional woodland (with pines, juniper and some Ho...

Nature parks can save species as climate changes

...f IBAs and takes account of the critical role that ecosystems play in helping wildlife and people adapt." Rut...e natural resources and services provided by these ecosystems is vital for people too. Healthy ecosystems are the first line of defence against the impacts ...

Internet can warn of ecological changes

...However, these are threatened by sudden changes in ecosystems caused by various pressures like climate change an...ies and the irreversible degradation of freshwater ecosystems and coral reefs are examples that have already bee...using information posted on the Internet to detect ecosystems on the brink of change. List servers fundamenta...

Microsoft scientist highlights urgent need for new computer models to address climate change

... need for additional study and resources. Purves said, "It is imperative that we create the tools and science to accurately understand the reaction of ecosystems to climate change and other forces not just for plants and animals, but for our children and succeeding generations." This research is part of the...

Experts prove the geochemical origin of part of the CO2 emissions in semiarid climates

...tion and in the conservation of one of the richest ecosystems of Spain. One of the most recent studied on the ... Carbon and water balance in Mediterranean thicket ecosystems in Andalusia: Effect of the climatic change projec...en 10 and 20 times lower than arable land and tree ecosystems respectively). Extreme climate What is the ...

ORNL 'resilience' plan to help Tennessee, Mississippi and South Carolina communities beat disaster

...ather and precipitation patterns. Government leaders are beginning to look at climate change as a national security issue and examining its impacts on ecosystems and economies. While the immediate purpose of the study is to examine communities resilience to storms, this work has definite implications for cli...

The sea ice is getting thinner

...rculation of the water masses, physical characteristics of sea-ice and transport of biological and geochemical components in ice and seawater. Sea-ice ecosystems in the seawater and on the ocean floor will also be a focus of investigations. Scientists will take sediments from the ocean floor in order to recons...

Rice Centromere, Supposedly Quiet Genetic Domain, Surprises

...tionary stages. The evolutionary progression of the centromeres, Jiang suggests, may be analogous to how temperate forests evolve from more diverse ecosystems to climax forests where a single species of tree dominates. In the rice centromere, it may be that evolution has not yet purged active genes to be rep...

Microbial Diversity in Ground and Surface Water Analyzed by Denaturing Gradient Gel Electrophoresis Using the DCode System

...rmation without cultivation. This culture-independent approach has greatly enhanced the ability to assess bacterial diversity in ecosystems such as ground and surface water environments. After isolation of total bacterial DNA, variable regions of the 16S rRNA gene are...
Ecosystems in Biological Definition

Adaptive radiation

...environmental change is the rapid spread and development of mammalian species after the extinction of the dinosaurs. Archipelagoes . Isolated ecosystems , such as islands and mountain areas, can be colonized by a new species which upon establishing itself undergoes rapid divergent evolution. Darwin's ...

Biology

...ll as the other organisms which share its habitat. Ecological systems are studied at several different levels from individuals and populations to ecosystems and biosphere level. Ecology is a multi-disciplinary science, drawing on many other branches of science. Ethology studies animal behavior (...

Biodiversity

...ve diversity among organisms present in different ecosystems . "Diversity" in this definition includes diversit...llenging, is the totality of genes, species, and ecosystems of a region . An advantage of this definition is t...inter alia , terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are par...

Botany

...lls , tissues , organs and the biodiversity of whole plants. At the top end of this scale, plants can be studied in populations, communities and ecosystems (as in ecology ). At each of these levels a botanist might be concerned with the classification ( taxonomy ), structure ( anatomy ), or function ( p...

Competitive exclusion principle

...llows from abstract mathematical modeling . The conditions under which competitive exclusion must hold are not very well understood; several natural ecosystems are known in which competitive exclusion seems to be violated. The best known example is the paradox of the plankton (or short plankton paradox )...

Cryptozoology

...tozoologists point these out to demonstrate that there are many unexplored regions of the world left, and that remote exotic locations or specialized ecosystems relatively untouched by man may contain unexpected life. Similarly cited is the 1976 discovery of the previously unknown megamouth shark , di...

Evolution

...lion years ago, plants and fungi colonized the land, and were soon followed by arthropods and other animals, leading to the development of land ecosystems with which we are familiar. The emergence of novel traits Mechanisms of inheritance In Darwin's time, scientists did not share broad agree...

Limnology

...Kalff , Limnology (Prentice Hall , 2001) B. Moss , Ecology of Fresh Waters ( Blackwell , 1998) Robert G. Wetzel , Limnology: Lake and River ecosystems , 3rd ed. (Academic Press , 2001) ISBN 0127447601 - highly regarded Robert G. Wetzel & Gene E. Likens , Limnological Analyses , 3rd ed. ( S...

Macroecology

...ersity of New Mexico and Brian Maurer of Michigan State University in a 1989 paper in Science . Macroecology approaches the idea of studying ecosystems using a "top down" approach. It seeks understanding through the study of the properties of the system as a whole; Kevin Gaston and Tim Blackburn m...

Marine biology

...dy of animal and plant life within saltwater ecosystems . Given that in biology many phyla , families ...the carbon cycle ) and movement of energy through ecosystems is also growing, despite large areas beneath the s... end of the scale, the role of viruses in marine ecosystems is barely being explored even in the beginning of ...
Ecosystems in Biological Dictionary

Ecosystems

An ecosystem is a natural unit consisting of all plants, animals and micro-organisms in an area functioning together with all of the physical (abiotic) factors of the environment. An ecosystem is a unit of interdependent... Biomes are ecosystems where several habitats intersect. The Eart...

Microbial mats

...S ... years of life on Earth was microbial , and Precambrian carbonates are well known ... Hypersaline microbial mats are complex, integrated ecosystems that have become ... Why Sequence Hypersaline Microbial Mats ? RSS Comments/Questions Credits ... Anhydrophilic, Halotolerant Microbial Mats...

Limnology

.... Limnology is a discipline that concerns the study of inland aquatic ecosystems ... At times, and historically, limnology is more specifically defined a... from. Landscape limnology is the spatially-explicit study of aquatic ecosystems as ... Findings from landscape limnology research are contributing to ma...

Lichens

... and biochemistry of... Offers information on the biology and ecology of lichens , human uses, and a photo gallery. Go to Lichens and ecosystems (Nutrient cycling, soils, and environmental ... " Lichens are fungi that have discovered agriculture"-- lichenologist Trevor Goward. ... If the ...

Ecosystem

...ore the health of an aquatic ecosystem ? ... Learn about the different ecosystems and biomes on our planet. ... An ecosystem is much smaller than a biome...... Ecosystem Services: Economic analyses of the ways in which natural ecosystems contribute to regional and global economies. ... 301A, Ecosystem Service...

Ecology

...human ecology . ... systems ecology ( ′sistəmz i′käləjē ) ( ecology ) The combined approaches of systems analysis and the ecology of whole ecosystems and Get news and info about Ecology . Change my address with Ecology . Contact staff or locate Ecology offices. Recovery & Reinvestment pr...

Biome

...tems. Biomes are defined by... A biome is a large geographical area of distinctive plant and animal groups ... Each biome consists of many ecosystems whose communities have adapted to the ... All about the Alpine biome , description, global position, climate, and information on specific plants ...

Biogeography

...regions on Earth, and Wallace's ... Conducting basic and applied research on the ecology, distribution, and conservation status of species and ecosystems with the aid of GIS and remote sensing. (Redirected from Island Biogeography ) Jump to: navigation, search ... The theory of island biogeograp...
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Breaking Biology News(10 mins):BGI reports a novel gene for salt tolerance found in wild soybean 2Virtual finger enables scientists to navigate and analyze complex 3D images 2
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