Menu Close

Artikel-artikel mengenai Vegetation

Menampilkan 1 - 20 dari 22 artikel

The fossil deposits at the La Brea Tar Pits in Los Angeles have well-preserved remains of many prehistoric animals that got stuck in natural asphalt seeps over the past 60,000 years. Cullen Townsend, courtesy of NHMLAC

A changing climate, growing human populations and widespread fires contributed to the last major extinction event − can we prevent another?

New findings from the La Brea Tar Pits in southern California suggest human-caused wildfires in the region, along with a warming climate, led to the loss of most of the area’s large mammals.
Lake surrounding a mining site in Northern Québec. (Maxime Thomas)

The invisible effects of human activity on nature

Human activities can affect plants and have consequences for the human populations that consume them.
Satellite image of a forest fire in July 2021 in northern Saskatchewan (Wapawekka Hills). The image covers an area of about 56 kilometres in width and is based on Copernicus Sentinel data. (Pierre Markuse), CC BY 2.0

Forest fires: North America’s boreal forests are burning a lot, but less than 150 years ago

North America’s boreal forests have been burning a lot, probably more and more over the past 60 years. Yet the long-term trend indicates that they are burning less than they were 150 years ago.
The round goby is an invasive fish that has become established in the St. Lawrence River over the past two decades, following its introduction into the Great Lakes. (Cristina Charette)

St. Lawrence River zones that are hostile to invasive species can be refuges for native fish

Wetlands can help limit the spread of the voracious round goby, an invasive species that has infiltrated the Great Lakes and has become widespread in the St. Lawrence River.
One year following the 2019/20 fires, this forest has been slow to recover. Rachael Nolan

Climate change is testing the resilience of native plants to fire, from ash forests to gymea lilies

Many plants are really good at withstanding bushfires, but the combination of drought, heatwaves and pest insects under climate change may push them to the brink.
A fire rages through wetlands close to Cape Town in February 2017. EPA/Nic Bothma

What science tells us about fire hazards facing Cape Town and its surrounds

The danger of fires in the Cape region this season is partly dependent on how the Fynbos has been managed over the past few decades.
A ‘thinned’ landscape, which provides far from ideal habitat for many species.

Land clearing on the rise as legal ‘thinning’ proves far from clear-cut

Legal vegetation ‘thinning’ is contributing to high rates of land clearing, potentially causing problems for threatened species and ecosystems.
Extreme weather could trigger ecosystem collapse, including mass tree deaths. Dead tree image from www.shutterstock.com

Rising extreme weather warns of ecosystem collapse: study

Extreme weather will affect people and animals, as well as whole ecosystems. Research using satellites shows that ecosystems worldwide are vulnerable to collapse.
The urban landscape is complex and ever-changing in cities such as Perth, but digital aerial photography can now monitor even the smallest changes. Wikimedia Commons

The planner’s new best friend: we can now track land-use changes on a scale of centimetres

Constant, complex changes in cities and mine sites are hard to monitor. Drawing on digital aerial photography, it’s now possible to track land-use and vegetation changes in areas as small as 10-20cm.

Kontributor teratas

Lebih banyak