Dune ecosystem modelling

Acacia longifolia, which is native to Australia, is a species which was cultivated in Portugal primarily to stabilize dunes and as an ornamental plant; now it has spread out uncontrollably in Portugal and into many ecosystems around the world. Using the acacia as an example, researchers show that the location has an effect on interaction with other species.

Invasive species gang up on crayfish

A new study looking into invasive zebra and quagga mussels’ relationship with invasive rusty crayfish illustrates how the harm they cause together can be greater than either of them alone.

Biologist develops new method to calculate populations of elusive species

An innovative new method of estimating the density of snake populations without employing the capture-mark-recapture technique has been created by a biologist.

Pollinator extinctions alter structure of ecological networks

The absence of a single dominant bumblebee species from an ecosystem disrupts foraging patterns among a broad range of remaining pollinators in the system — from other bees to butterflies, beetles and more, field experiments show.

Small variations in breeding pools make for big differences in Yosemite toad use

The Yosemite toad (Anaxyrus canorus) is a rare species found exclusively in California’s Sierra Nevada. While its range encompasses hundreds of miles, spanning five national forests and two national parks, the livelihood and future survival of this federally threatened species may come down to mere centimeters. Pools within alpine meadows to be suitable habitat for laying eggs and sustaining tadpoles, little things mean a lot.

African plant extract offers new hope for Alzheimer’s

A plant extract used for centuries in traditional medicine in Nigeria could form the basis of a new drug to treat Alzheimer’s disease, researchers have found.

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