Ecosystem

Nematodes Discovered in Great Salt Lake, Challenging Long-Held Beliefs

Scientists at the University of Utah have discovered a third form of multicellular life in the Great Salt Lake – nematodes, or worms, thriving in its ultra-saline waters. This groundbreaking finding challenges long-held beliefs about the lake’s biodiversity and expands the understanding of nematode adaptability in extreme environments. The study’s use of advanced molecular techniques underscores the significance of the discovery, opening new avenues for research into the adaptability of organisms in hyper-saline environments.

Restored Coral Reefs Can Grow as Fast as Healthy Ones, New Research Shows

New research reveals that restored coral reefs can grow as fast as healthy ones, providing similar habitats for marine life and protecting adjacent islands from coastal erosion. The study found that coral cover, colony sizes, and carbonate production rates tripled following coral transplantation and were indistinguishable from nearby healthy reefs in all investigated parameters after just four years. This research shows that active management actions can help boost the resilience of specific reefs and bring back important functions critical for marine life and local communities.

Food Web Flexibility Through Time

A theoretical experiment followed the food webs between 50 predatory spider species and 974 prey species in a species-rich ecosystem over 8 months. The study found that the network architecture shifted between consecutive months, with some species leaving, others appearing, and some predators switching prey. The authors identified certain species as ‘network coordinators’ that contribute to the flexibility of the overall network architecture, offering stability to the ecosystem as a whole. This research highlights the importance of considering the dynamism of ecological networks in understanding community stability in the face of environmental changes.

Glacier-Fed Streams Undergoing Profound Change, Scientists Say

Glacier-fed streams are changing due to ongoing glacier shrinkage, leading to a flourishing of microbial life. EPFL and Charles University scientists report that as glaciers shrink, the streams become warmer, clearer, and calmer, allowing microorganisms to contribute more to local carbon and nutrient cycles.

Study Reveals Glitter’s Impact on Aquatic Plant Growth

Recent study reveals the concerning impact of glitter on aquatic plant growth, as the metal coating on glitter reduces the amount of light penetrating water bodies, impairing photosynthesis in the Large-flowered waterweed Egeria densa. Glitter, often made of microplastics and metals, is a common pollutant in rivers and seas, accumulating in aquatic environments. The research focused on the effects of glitter on E. densa, an important macrophyte native to South America, highlighting the potential harm that glitter can cause to aquatic plant life.

Invasive Earthworm Species Threaten Native Ecosystems in North America

A new study warns of the threat posed by at least 70 imported earthworm species in North America. These earthworms, largely overlooked, are disrupting native ecosystems and biodiversity. The research highlights the need to better understand and manage these invaders, which have been brought to the continent from Asia, Europe, South America, and Africa since the late 1800s.

Study Finds Removal of Apex Predators from Ecosystems Has Long-Lasting Effects

A recent study by Colorado State University found that the removal of apex predators from an ecosystem can have long-lasting effects. The study challenges the belief that reintroducing wolves to Yellowstone National Park restored the degraded ecosystem, revealing that the absence of apex predators for nearly a century transformed the food web and landscape. Lead author Tom Hobbs emphasized that disturbing ecosystems by changing the makeup of a food web can lead to lasting changes that are not easily fixed.

Spider Webs as Traps for Environmental DNA

Spider webs, often associated with catching flies, have been found to be a useful trap for environmental DNA, offering a potential breakthrough for environmental scientists. The discovery that spider webs can capture fragments of skin, hair cells, or body fluids…

Ancient Kelp Forests Thriving for Over 32 Million Years, Study Finds

Recent scientific findings suggest that kelp forests have been thriving in the oceans for over 32 million years, providing a crucial habitat for a diverse range of marine life. The study, published in PNAS, challenges previous assumptions about the age…

Challenging the Concept of Fractality in Forest Canopies

The complexity of forests has long fascinated scientists, as the way trees grow together in a forest does not resemble how branches grow on a single tree. The structure of the top layer of a forest, known as the canopy,…