Dr. Randy Moore, a professor at the University of Minnesota, is receiving the 2008 Evolution Education Award for his innovative classroom teaching and community education efforts to promote evolutionary biology. His approach incorporates evolution as a unifying element of modern biology, helping students understand and appreciate nature.
Sustainable farming with shade trees improves resistance to climate-related stressors, particularly in marginal growing areas. Traditional agroforestry techniques can help protect farmers' livelihoods threatened by climate change.
This issue of BioScience features studies on fungal community ecology, extreme precipitation regimes, and the developing Drosophila brain. Researchers also explore the consequences of climate change for terrestrial ecosystems and discuss the potential benefits of restoration and sustainable agriculture.
The thawing of permafrost is expected to release a significant amount of carbon dioxide, potentially doubling current atmospheric levels. This could lead to a substantial increase in greenhouse gas emissions and further accelerate global warming.
The September 2008 issue of BioScience features research on the molecular biology toolbox, permafrost carbon vulnerability to climate change, urbanization impacts on aquatic ecosystems, warfare ecology, sociality in bats, lab-computation collaboration, deforestation and vectorborne disease, and more.
Penguin populations are declining globally due to human influences such as climate change, commercial fishing, and oil spills. The threats to these species are likely to intensify in the coming years, highlighting the need for coordinated conservation efforts.
This July/August issue of BioScience features articles on avian genomics, penguin populations, and the impact of human activities on wildlife. The journal also explores the role of biofuels in energy policy and genetic literacy among nonscience majors.
Researchers find that bark beetles' complex dynamics are influenced by tree spacing, local climate, and nearby conditions, leading to devastating forest outbreaks. Human activities like climate change can amplify these eruptions, causing significant economic losses and reducing forests' carbon absorption capabilities.
Woody and aquatic plants pose significant threats to China's ecosystems, with the country at risk of catching up with the US in terms of invasive species. China has fewer invasive woody plants than the US, but the introduction of new species via international trade is expected to increase rapidly.
The American Institute of Biological Sciences (AIBS) honored four award winners in 2008 for their significant contributions to the biological sciences. These individuals were recognized for their groundbreaking research, exceptional service to the scientific community, and dedication to education and environmental conservation.
Over 400 alien species are now considered invasive in China, with many causing significant harm to the environment. The rapid growth of China's industrial infrastructure is making it easier for organisms to spread and establish themselves throughout the country.
A study published in BioScience found that a 2007 Eastern US spring freeze caused widespread damage due to unusual warmth preceding the event. This pattern of warmer winters and colder springs may become more common with global warming, posing risks to plant life.
Novel molecular techniques have shed light on the nature of freshwater environments as a bacterial habitat. Researchers can now analyze specific functional capabilities of bacteria, such as their ability to metabolize particular molecules, and understand how microbial populations shift in response to environmental change.
Researchers explore how modern concepts from mathematical ecology can benefit economically vital yet ecologically complex areas. The four articles in the special section highlight different aspects of attempts to incorporate these concepts into ecosystem-based management.
Edward O. Wilson's article in BioScience presents a new perspective on the evolution of eusociality in insects, suggesting that natural selection acts on nascent colonies rather than individual traits. This challenges the traditional explanation based on kin selection, highlighting the complexity of social organization in these species.
A comprehensive study finds that climate change could lead to significant shifts in North American tree ranges, with potential decreases of up to 58% if species cannot disperse. The research used an extensive data-gathering effort and simulated two climate change scenarios.
Green roofs offer multiple benefits, including reduced energy costs and controlled storm-water runoff. They also provide havens for local wildlife, making them an attractive alternative to traditional roofing options. Researchers argue that further research is needed to optimize green roof designs and plant species.
The Great Plains' stability is threatened by demographic shifts, environmental degradation, and economic pressures. Despite increased crop productivity, the region faces challenges such as soil erosion, high nitrate runoff, and declining aquifers.
A recent study documents significant increases in El Salvador's wooded areas since the 1990s, driven by population movements and remittances. The research found that households receiving foreign funds felt less need to maintain existing fields, resulting in reduced land clearing and forest regrowth.
A new biogeographic classification system, Marine Ecoregions of the World, is described in BioScience, providing a valuable tool for conservation planning. The system groups coastal and shelf areas into 232 distinct ecoregions, enabling researchers to identify critical areas for conserving endangered species.
The wild tiger's population has declined by 41% over the past decade due to habitat loss and trade in tiger parts. Successful conservation programs, such as those in India and Nepal, have shown promise in protecting the species.
Regenerative agriculture involves reduced inorganic fertilizer use, increased on-farm energy generation, and more human labor. This approach may also reduce overcropping and groundwater contamination.
The American Institute of Biological Sciences (AIBS) honored several individuals and groups in 2007 for their significant contributions to the field of biology. The Distinguished Scientist Award was presented to Simon A. Levin, Princeton University, for his research on biodiversity loss and environmental protection.
Data from decades of bird surveys show a decline in total birds in the region, but some species' populations increase due to habitat changes, while others decrease despite migration or expansion into new habitats.
A team of researchers calls for better forecasting of extinction rates due to global warming. They argue that current models overestimate extinction risks and propose eight recommendations to improve forecasts, including clarifying biodiversity definitions and testing existing models more rigorously.
Recent studies on animal migration have gained insights into the evolution of this complex phenomenon, yet much remains unknown. Advances in technology are helping scientists better understand the mechanisms behind migration, including the role of genetic correlations in determining future evolutionary changes.
Research has identified five hotspots of high mercury contamination in fish and birds across eastern North America, posing a risk to human health and wildlife. The study highlights the need for stricter regulations on mercury emissions from coal-fired power stations and municipal waste incinerators to mitigate this environmental threat.
New mathematical studies suggest that oscillating biological populations can synchronize due to interactions like predation and competition. This phenomenon, known as synchronized chaos, can lead to unpredictable opportunities for invaders in ecosystems.
The H5N1 avian influenza has been detected in 55 countries, but critical information about wild birds is often recorded inaccurately or not at all. This lack of data can lead to unwarranted assumptions and conclusions that affect public perceptions and resource allocation.
A study on Kentish plovers found that females are more likely to desert if there are local unpaired males, suggesting a strategy likely to persist in evolution. In species with young requiring extensive parental care, cooperative rearing is more likely to endure.
Researchers found that conservation measures appear feasible in gap locations with large tracts of habitat and sparse human populations. However, difficulties may arise near coasts and in regions with agricultural interests, highlighting the need for further efforts to establish new protected areas.
Species unique to tidal marshes are vulnerable to habitat loss due to coastal development and sea level rise. Toxic wastes and invasive species also pose a significant threat to these endemic species. The American Institute of Biological Sciences argues for an expanded research program to better understand the impacts of these threats.
Researchers analyzed 22 multispecies plans and found that 41% of covered species were unconfirmed. This lack of data can lead to nonuniform land use, posing a threat to protected species.
The Iraqi marshes have made notable strides in recovery since the Hussein regime devastated them in the 1980s and 1990s. Reflooding efforts led by local farmers have restored approximately 39% of the former extent, with many areas showing good water quality and rapid restoration of wetland functions.
Congressman Boehlert will receive the award for his strong advocacy of science and funding for agencies like the National Science Foundation. The presentation will take place at the AIBS Annual Meeting on May 24, addressing biodiversity and policy.
Researchers found that juvenile birds, like chukar partridges, use a form of locomotion called 'wing-assisted incline running' (WAIR) to climb steep slopes. This behavior may have been crucial for the evolution of flight in birds, as it would have provided an advantage when pursuing prey or escaping predators.
A study by Losey and Vaughan estimates the economic value of ecological services provided by insects at $57 billion annually in the United States. The services include natural control of crop pests, pollination, and wildlife nutrition, valued at $4.5 billion, $3 billion, and $50 billion respectively.
Researchers have developed various methods to minimize predation conflicts, including fladry with electrically charged wires and paintball-type devices. However, it's essential to consider the complex psychological relationship between humans and predators when implementing these strategies.
The article discusses Nicol's model of krill's life history, which separates the species into different stages and explains how it drives its evolution. The study reveals that this life cycle keeps adult krill separate from younger stages, reducing competition for food and minimizing predation on juveniles.
The use of underwater listening devices has yielded surprising discoveries about the movements and calling behavior of endangered large whales in Alaskan waters. These devices have enabled scientists to detect and recognize whale calls over tens of miles, providing new insights into the seasonal habits of these marine mammals.
Inland water overfishing leads to declines in catch per unit effort and size of individuals captured, as well as sequential species declines. This can have severe impacts on human health, particularly in developing countries where fish are a primary protein source.
A study found that reading books sympathetic to and opposed to evolution increased acceptance of rationalist views in college biology students. Most students initially sympathetic to creationist explanations moved toward increased acceptance of evolution.
Experts from the American Institute of Biological Sciences assess dredge-and-fill programs to protect coastlines, highlighting flaws in current practices. The studies aim to identify areas for improvement and promote more effective ecological monitoring.
A study by Alex Woods and colleagues suggests that climate change may be behind an unprecedented epidemic of dothistroma needle blight in forests. Increased summer precipitation is believed to have spread the pathogen, which typically thrives in moist conditions.
Researchers have identified new amphibian species through genetic analysis and bioacoustic tools, contrary to the assumption that taxonomic inflation is driving species discoveries. This finding underscores the importance of continued exploration and conservation efforts in this endangered vertebrate group.
A recent study using 'ecological footprint' accounting found that the US benefits from using fuel ethanol do not outweigh its significant environmental impacts. The research suggests that relying on ethanol to fuel the automobile fleet would require enormous areas of corn agriculture, outweighing any potential energy gains.
Researchers propose that reservoir construction creates ideal conditions for exotic aquatic species to thrive and spread. Studies suggest that reservoirs can facilitate the invasion of invasive species such as Daphnia lumholtzi and zebra mussels.
The study highlights substantial risks of farm salmon escapes into the North Atlantic and other regions, threatening native fish populations. Escapes lead to interbreeding, loss of fitness, and genetic diversity, as well as parasite transmission to wild stocks.
A Cornell graduate student has been awarded the AIBS Emerging Public Policy Leader Award. The winner, Laughlin, will participate in a two-day event in Washington D.C., meeting with Congressional leaders and attending briefings by key government officials. She will also discuss federal programs supporting biological research.
The study found that species listed under the Endangered Species Act for a longer period were more likely to improve in status and less likely to decline. Additionally, species with critical habitat designation and dedicated recovery plans tended to fare better in terms of conservation status.