Articles tagged with Biodiversity Loss
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A recent study found that biodiversity loss has a major driver of ecosystem change, rivaling the effects of climate change and pollution. The researchers analyzed data from almost 200 published studies, measuring species loss and its impact on plant growth and decomposition.
International experts agree on the need to better understand biodiversity loss and its impact on ecosystem services, which are crucial for human well-being. The new framework sets out a strategy to address biodiversity-related research efforts and inform policy decisions.
A comprehensive assessment reveals that relying on protected areas is insufficient to address the ongoing global biodiversity crisis. The study highlights five key technical and practical limitations of this approach, including inadequate enforcement and insufficient funding.
Researchers found that sexual reproduction via cross-fertilization keeps host populations one evolutionary step ahead of coevolving parasites. This allows parents to produce offspring resistant to the parasites, while self-fertilization leads to extinction.
Researchers found significant biodiversity loss in streams with less than 2% developed land, contrary to previous estimates. Chemical pollution is implied as a major contributor to the degradation of water quality.
A comprehensive analysis of 574 field and laboratory studies reveals that plant communities with many species are nearly 1.5 times more productive than those with only one species. This suggests that biodiversity is essential for maintaining the functioning of ecosystems, particularly in estuaries like Chesapeake Bay.
The DOPA observatory combines data on protected areas, species distributions, and socio-economic indicators to generate global environmental indicators and maps. This initiative aims to address anthropogenic pressures on ecosystems and identify new areas for protection.
A new analysis forecasts inevitable biodiversity decline, but offers hope that it can be slowed through climate change mitigation and better policies. Emerging policy choices have the potential to reduce biodiversity loss by up to 15% by 2030.
The proposed 2020 CBD goals aim to address biodiversity loss through specific, measurable, ambitious, realistic, and time-bound targets. However, experts argue that the targets must consider trade-offs, timing, and complexity to be successful.
Conservationists argue that managing biodiversity as a global public good is key to its preservation. The paper emphasizes the need for policymakers, businesses, and civil society to incorporate biodiversity into their decisions.
The Economics of Ecosystems and Biodiversity (TEEB) study estimates annual Natural Capital loss to be between EUR 1.35 trillion - EUR 3.1 trillion, with coral reefs valued at US$ 172 billion annually. TEEB leader Pavan Sukhdev calls for decisive action to prevent biodiversity loss.
The PEGASO project aims to improve coastal management by integrating sea, coast, and marine ecosystems research for effective Integral Coastal Zone Management (ICZM) in the Mediterranean. Researchers will study specific actions to be applied under ICZM, combining data from 11 case studies in Europe.
The world is expected to miss its target to stem biodiversity loss by 2010, with freshwater ecosystems collapsing due to massive mismanagement and growing human needs for water. This has led to an immense crisis in freshwater biodiversity, with species extinction rates four to six times higher than their terrestrial and marine cousins.
Fertilizing grasslands increases productivity but decreases plant diversity by intensifying competition for light, allowing faster-growing species to outcompete others. Artificially added light can counteract these effects, suggesting that controlling nutrient enrichment is crucial for conserving biodiversity in managed grasslands.
A list of 100 key scientific questions has been published to aid conservation efforts. These questions, compiled by 761 conservationists and academics, aim to address gaps in knowledge on issues such as climate change and ecosystem function. Answering these questions could help stem massive biodiversity loss.
The TEEB report presents a comprehensive economic case for conserving biodiversity, citing severe consequences if current decline continues. Economic valuation studies show that the loss of biodiversity and ecosystem services has significant human costs, particularly for the poor.
McGill researchers found that societies with more unequal distributions of income experience greater losses of biodiversity. The study suggests a synergy between equitable wealth distribution and conservation of biological diversity.
Biodiversity experts warn of a major crisis and urge creation of an inter-governmental mechanism to provide a united, authoritative scientific voice. Existing organizations lack the structural means to mobilize the expertise of a large scientific community, spanning multiple disciplines.
The current reserve system in the New World is inadequate, with only a tenth of protected areas reaching Disney World's size. Conservation investments may yield greatest impact in ten regions where biodiversity losses can be prevented.
A comprehensive volume addresses key hypotheses for amphibian declines, including non-native species, UV radiation, and climate change. The study highlights the urgent need for conservation research to address this biodiversity crisis.
A recent study by Max Planck Institute researchers found that in mutualistic interactions between species, the faster-evolving species may actually lose out. The slow-moving species can gain an advantage when both are generous and coordinate their strategies, whereas quickly evolving species tend to adapt to slow evolvers' needs.
A recent study found that areas with greater biodiversity of small mammals have lower rates of Lyme disease. This is due to a decrease in the number of infected tick nymphs, which are most active during summer and hard to detect.
A study led by Colorado State University scientists reveals that human-caused global changes, such as land-use change and nitrogen deposition, are expected to drive biodiversity loss between now and 2100. The research identifies five primary drivers of global change and assesses their impact on terrestrial and freshwater ecosystems.
A study by BIODEPTH found that reducing species richness in plant communities results in decreased productivity, higher soil nitrate concentrations, and altered ecosystem processes. The findings suggest that preserving and restoring biodiversity is crucial for maintaining grassland productivity.
The Everglades' low biodiversity, caused by nutrient deficiencies, makes them vulnerable to pollution. Researchers recommend reducing agricultural runoff and filtering water through marshes to preserve the ecosystem's character.
Biologists have discovered three new hotspots of high biological diversity in New Zealand, Southeast Australia, and Tasmania. The study found that the terrestrial flatworm, a humble but diverse species with over 822 varieties, can act as a model for understanding the distribution of lower invertebrates.
New experiments suggest that biodiversity loss can have significant consequences for ecosystem functions, including reduced resilience to extreme events. The type of species present also appears to play a crucial role in determining ecosystem function.
A new biodiversity theory suggests that protecting ecotones along rainforest periphery is crucial for preserving biodiversity. Ecotones, the transition zones between rainforests and savannas, may be integral to generating biodiversity in tropical rain forests.
Ecologists are exploring how many species must be saved to keep an ecosystem functioning, with studies suggesting that losing even a small percentage of biodiversity can have significant consequences. Key findings include the importance of 'keystone' species and the impact of genetic variability on ecosystem resilience.