A new University of Washington study points to yet another human factor that is hampering the ability of fish to reproduce: the timing of our fishing seasons. The study considers how the timing of fishing efforts might disproportionately target certain fish and change the life history patterns of entire populations.
When seeking a cure for a disease, early detection is often the key. The same is true for eliminating invasive species. Identifying their presence in a lake before they are abundant is vital. A recent University of Illinois study successfully used environmental DNA to detect invasive clams in California and Nevada lakes. Researchers believe this tool can help identify pests before they become a problem.
Production timings for artificially propagated plants and animals could help flag items offered for sale before they should legally be available.
In a comprehensive and complex molecular study of blood samples from Ebola patients in Sierra Leone, published today (Nov. 16, 2017) in Cell Host and Microbe, a scientific team led by the University of Wisconsin-Madison has identified signatures of Ebola virus disease that may aid in future treatment efforts.
A study of Puerto Rico's Africanized honey bees -- which are more docile than other so-called 'killer bees' -- shows they retain most of the genetic traits of their African honey bee ancestors, but that a few regions of their DNA have become more like those of European honey bees. These changes likely contributed to the bees' rapid evolution toward gentleness in Puerto Rico, a change that occurred within 30 years, and could spell hope for beekeeping in North America.
The passenger pigeon is famous for the enormous size of its historical population and for its rapid extinction in the face of mass slaughter by humans. Yet it remains a mystery why the species wasn't able to survive in a few small populations. One theory, consistent with the findings of a new study published in Science, suggests that passenger pigeons were well adapted to living in huge flocks, but poorly adapted to living in smaller groups.
A new review article presents evidence that argues for a more nuanced approach to the design of global-change experiments -- one that acknowledges and purposefully incorporates the variability inherent in nature.
A new study confirms what marine mammal researchers have suspected for a while: right whales use nearly the entire eastern seaboard during the winter, and they move around a lot more than was previously thought. How long they spend in some areas of their range has also changed in recent years.
A first-of-its-kind study on prognostic health indicators in the endangered African penguin provides invaluable information to preserve and rehabilitate this seabird. Competition with fisheries, oil spills, climate change, diseases and predators are all contributing factors in their dramatic population decline, which has been as high as 80 percent in some South African colonies. Until now, limited data existed on the factors contributing to their successful rehabilitation.
A particular mutation identified among Old Order Amish in Indiana is associated with a longer life span, improved metabolism and a lower occurrence of diabetes, according to a new study.