(Phys.org) —A team of researchers in France, has, for the first time, calculated the Human Trophic Level (HTL)—a number that indicates the proportion of the diet as it relates to the food chain. In their paper, published ...
Many complex systems have underlying networks: they have nodes which represent units of the system and their edges indicate connections between the units. In some contexts, the connections are symmetric, but in many they ...
Mathematics
Sep 8, 2020
0
169
The reconstructed megalodon (Otodus megalodon) was 16 meters long and weighed more than 61 tons. It was estimated that it swam at around 1.4 meters per second, required over 98,000 kilo calories every day and had a stomach ...
Ecology
Aug 17, 2022
0
1018
Until now, it's been a common belief that the packed sea ice of the Southern Ocean blocked all light from reaching the sea beneath, preventing phytoplankton—tiny algae that are the base of aquatic food webs—from growing ...
Ecology
Nov 17, 2022
0
155
Plants obtain their energy from the sun. Other beings rely on eating to survive. Yet how does the energy flow inside ecosystems function and are there differences between ecosystems with many species in comparison to those ...
Plants & Animals
Feb 26, 2020
0
426
Born in food web ecology, the concept of trophic levels—the hierarchy of who eats who in the natural world—is an elegant way to understand how biomass and energy move through a natural system. It's only natural that the ...
Ecology
Feb 25, 2021
1
20
When you picture a finicky eater, a raccoon doesn't usually come to mind. But new research from the University of Georgia has revealed that scavengers, such as raccoons and vultures, can be selective about what they eat. ...
Plants & Animals
May 24, 2022
0
134
Many marine organisms, such as fish, marine mammals and crustaceans, produce and use sound to navigate, reproduce, detect prey and avoid predators. However, anthropogenic sound, for example from the construction and operation ...
Plants & Animals
Jun 9, 2023
0
10
Increasing either temperature or nutrients can hurt ecosystems by destabilizing food webs, which are all of the interconnected food chains that make communities behave the way they do. When temperature and nutrients increase ...
Ecology
Apr 26, 2023
0
8
A new study from the University of Eastern Finland shows that lettuce can take up nanoplastics from the soil and transfer them into the food chain. The paper is published in Nano Today.
Ecology
Sep 12, 2022
0
711
