Tropical Sea Urchin Is Grown in Lab for First Time

For the first time, a tropical sea urchin — a species intrinsically linked to the long-term health and survival of coral reefs — was grown successfully from cryopreserved embryos at the Smithsonian’s National Zoo and Conservation Biology Institute laboratories at the Hawaii Institute of Marine Biology. More than 950 species of sea urchins play a … Read more

Urban agriculture can promote bee communities in tropical megacities – BIOENGINEER.ORG

Urbanization is a primary threat to biodiversity. However, scientists know little about how urbanization affects biodiversity and ecosystem services in tropical regions of the Global South. An international research team led by the Universities of Göttingen and Hohenheim in Germany, in collaboration with the University of Agricultural Sciences of Bangalore in India, investigated the effects … Read more

As temperatures rise, tropical glaciers feel same impact as poles – News

Glaciers in tropical mountain ranges are experiencing similar impact from the drivers of climate change as those in the polar regions of Antarctica and the Northern Hemisphere, according to a study published today in Nature. The paper by a team of international scientists, including Robert Hatfield, an assistant professor in the University of Florida Department … Read more

Tropical Cyclones Are Dropping in Number, Study Says

Tropical Cyclones Are Dropping in Number, Study Says A new study based on reanalysis data finds that tropical cyclones (also known as hurricanes) have been decreasing in number since the beginning of the 20th century. Image: Chand et al., Nature Climate Change 2022 Researchers have for the first time shown that the annual number of … Read more

What 40-million-year-old tropical reef corals tell us about climate change

View inside the collection drawers: 40-million-year-old tropical reef corals from present-day France. Credit: Stefan Krüger Unusually well-preserved reef corals from the Geological and Paleontological Collection at Leipzig University hold a great secret: They allow us to travel far into the past and reconstruct climatic conditions in our latitudes. Researchers from Leipzig University, the Universities of … Read more

There’s an Unfortunate Causal Link Between Cleaner Air And Atlantic Hurricanes

As air pollution decreases in the western Northern Hemisphere, several new climate simulations suggest tropical cyclones in the Atlantic may increase. The forecast is troubling, though not necessarily a surprise. When tiny aerosols like dust, soot, and sulfates are airborne, they create smog that can dim sunlight and cool Earth’s atmosphere and surface. Broadly speaking, … Read more

Basically Half of All Known Bird Species Are Grappling With Population Declines

Thousands of wild bird species are growing ill or dying from habitat loss, climate change, and overexploitation, according to new research. A new estimate from researchers around the world has found 48 percent of living bird species are known or suspected to have declining populations. That’s more than 5,000 species that face a risky future. … Read more

Fossils of Leaves in Borneo Reveal an Ancient 4 Million-Year-Old Forest

Leaf fossils on Borneo have been studied in detail for the first time, say researchers, revealing that the rainforests that cover the surface of the island have been in place and fostering biodiversity for at least 4 million years. The current landscape, dominated by dipterocarp trees, looks much as it would have done during the … Read more

Environmental helicity may affect the outer-core size of tropical cyclones – BIOENGINEER.ORG

The outer-core size of tropical cyclones (TCs) is vital for evaluating their destructive potential. It is usually defined as the radius of gale-force wind (R17), but accurately forecasting R17 is challenging owing to our incomplete understanding of the physical mechanism that determines it. Nonetheless, there is a general consensus that the TC’s outer-core size is … Read more