Related topics: bacteria · climate change · mercury

Mexico says pig die-off due to salmonella, pneumonia

Mexican authorities breathed a sigh of relief Friday when experts determined that a die-off of pigs in December at a local slaughterhouse was due to salmonella and Pasteurellosis, a commonly occurring infection, and not African ...

Shoots and roots respond differently to climate change

A new synthesis conducted by a group of international scientists including Madhav P. Thakur from the University of Bern reveals mismatches between above and belowground plant phenology due to climate change. These findings ...

Baleens read like a whale's history book

By chemically analyzing sequential samples from the baleen of dead whales, it is possible to read not only the history of the diet, but also the migration route of the animals. In the latest issue of the journal Royal Society ...

Urbanization not always bad for food and land use diversity

Widely accepted myths that urbanization negatively impacts food and land use biodiversity are incorrect, according to a team of researchers who developed a framework for evaluating this intersection. Their results could also ...

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Food chain

Food chains, also called food webs, describe the eating relationships between species within an ecosystem or a particular living place. Many types of food chains or webs are applicable depending on habitat or environmental factors.

Organisms are connected to the organisms they consume by lines representing the direction of organism or energy transfer. It also shows how the energy from the producer is given to the consumer. Typically a food chain or food web refers to a graph where only connections are recorded, and a food network or ecosystem network refers to a network where the connections are given weights representing the quantity of nutrients or energy being transferred.

Sometimes, on a food chain, each animal is separated with an arrow. If it is pointing right, it means "is eaten by" or "is consumed by".

Every single food chain known to Man begins with a type of autotroph, whether it be a plant or some kind of unicellular organism.

This text uses material from Wikipedia, licensed under CC BY-SA