Showing 20 articles starting at article 661

< Previous 20 articles        Next 20 articles >

Categories: Biology: Developmental, Ecology: Extinction

Return to the site home page

     (via sciencedaily.com)     Original source 

Birds native to the tropical Andes are threatened by increasing agricultural development in the region. A new study combines a meta-analysis of papers on birds across the Andes with five years of fieldwork in Peru, revealing that open farmlands result in up to a 60% decline in the number of species in an area. The study documents how specific species are affected and provides tailored guidance for conservationists trying to protect them.

     (via sciencedaily.com) 

Researchers demonstrate that a vast multitude of birds and mammals can be detected by simply swabbing the DNA left behind by animals from leaves. They showcased the power of this approach in an ecosystem that hosts a ton of wildlife and where detecting animals has historically proven extremely challenging -- the tropical rainforest.

     (via sciencedaily.com)     Original source 

Researchers model and map how neurons across the tiny brain of a C. elegans worm encode its behaviors, revealing many new insights about the robustness and flexibility of its nervous system.

     (via sciencedaily.com)     Original source 

Genetic remnants of viruses that are naturally present in the human genome could affect the development of neurodegenerative diseases. Researchers come to this conclusion on the basis of studies on cell cultures.

     (via sciencedaily.com)     Original source 

Radiocarbon dating on bones in the La Brea Tar Pits lead archaeologists to warn that history may be repeating itself.

     (via sciencedaily.com)     Original source 

Can you recognize an old friend, but forget what you had for breakfast yesterday? Our brains constantly rearrange their circuitry to retain information, but the molecular basis behind this process isn't well understood. New research suggests that complex sugars called glycosaminoglycans might play a major role in the 'plasticity' of the brains of mice and could be used to repair neural connections after injury.

     (via sciencedaily.com) 

In the waters off the Hawaiian Islands, rates of calcification were measured in the deepest coral colonies.

     (via sciencedaily.com) 

Birds likely hold smart insights about coexisting in popular habitats -- especially as climate change looms. Scientists peel back layers of big data to tease out real-life answers.

     (via sciencedaily.com)     Original source 

A new method allows large quantities of muscle stem cells to be safely obtained in cell culture. This provides a potential for treating patients with muscle diseases -- and for those who would like to eat meat, but don't want to kill animals.

     (via sciencedaily.com)     Original source 

The Noelin family of secreted proteins bind to the external portion of AMPA glutamate receptors and stabilize them on the neuronal cellular membrane, a process necessary for transmission of full-strength signals between neurons, according to a new study.

     (via sciencedaily.com) 

Researchers have developed a new algorithm for recovering the 3D refractive index distribution of biological samples that exhibit multiple types of light scattering.

     (via sciencedaily.com) 

A mathematical model provides new insights into the distribution of genetic information during bacterial cell division

     (via sciencedaily.com)     Original source 

An international research team details changes in DNA that researchers found are shared by humans and other mammals throughout history and are associated with life span and numerous other traits.

     (via sciencedaily.com)     Original source 

Creating new technologically advanced sensors, scientists have engineered bacteria that detect the presence of tumor DNA in live organisms. Their innovation could pave the way to new biosensors capable of identifying various infections, cancers and other diseases.

     (via sciencedaily.com)     Original source 

New research has successfully reversed hearing loss in mice. Scientists used a genetic approach to fix deafness in mice, restoring their hearing abilities in low and middle frequency ranges.

     (via sciencedaily.com)     Original source 

While engaging in cell division research, researchers made a surprisingly quiet discovery. When cells express RNA, there is always some fluctuation, or noise, in how much RNA is produced. The scientists found several genes whose noise dips below a previously established threshold, known as the noise floor, during expression.

     (via sciencedaily.com)     Original source 

New research indicates that mitigating both local land and sea-based human impacts, especially in terms of pollutants and over-fishing, provides coral reef ecosystems with the best opportunity to persist under climate change. Along some highly populated areas on the shorelines of Hawai'i, wastewater pollution and urban runoff combine with fishing pressures to put immense stress on coral reefs.

     (via sciencedaily.com) 

In-water monitoring shows hard coral cover across the Great Barrier Reef remains at similar levels to that recorded in 2022, with small decreases in the Northern, Central and Southern regions. AIMS' Annual Summary Report on Coral Reef Condition for 2022/23 found that while some reefs continued to recover, their increased hard coral cover was offset by coral loss on other reefs. Most reefs underwent little change in coral cover.

     (via sciencedaily.com)     Original source 

Researchers hope that a new, publicly available database they have created will shrink, not grow, over time. That's because it is a compendium of the thousands of understudied proteins encoded by genes in the human genome, whose existence is known but whose functions are mostly not.

     (via sciencedaily.com)     Original source 

Current efforts to protect and restore native biodiversity is being threatened by difficulties in identifying wild and domestic cats, and categorization is likely to remain fraught for the foreseeable future, experts have warned.