DSC Library
443 views | +0 today
Follow
DSC Library
A wide range of topics for staff
Curated by lyn chatfield
Your new post is loading...
Your new post is loading...
Rescooped by lyn chatfield from Amazing Science
Scoop.it!

A tenth of the world's wilderness lost since the 1990s, study finds

A tenth of the world's wilderness lost since the 1990s, study finds | DSC Library | Scoop.it

Researchers reporting in the journal Current Biology show catastrophic declines in wilderness areas around the world over the last 20 years. They demonstrate alarming losses comprising a tenth of global wilderness since the 1990s - an area twice the size of Alaska and half the size of the Amazon. The Amazon and Central Africa have been hardest hit.

 

The findings underscore an immediate need for international policies to recognize the value of wilderness areas and to address the unprecedented threats they face, the researchers say.

 

"Globally important wilderness areas—despite being strongholds for endangered biodiversity, for buffering and regulating local climates, and for supporting many of the world's most politically and economically marginalized communities—are completely ignored in environmental policy," says Dr James Watson of the University of Queensland in Australia and the Wildlife Conservation Society in New York. "Without any policies to protect these areas, they are falling victim to widespread development. We probably have one to two decades to turn this around. International policy mechanisms must recognize the actions needed to maintain wilderness areas before it is too late. We probably have one to two decades to turn this around."

 

Watson says much policy attention has been paid to the loss of species, but comparatively little was known about larger-scale losses of entire ecosystems, especially wilderness areas which tend to be relatively understudied. To fill that gap, the researchers mapped wilderness areas around the globe, with "wilderness" being defined as biologically and ecologically intact landscapes free of any significant human disturbance. The researchers then compared their current map of wilderness to one produced by the same methods in the early 1990s.

 

This comparison showed that a total of 30.1 million km2 (around 20 percent of the world's land area) now remains as wilderness, with the majority being located in North America, North Asia, North Africa, and the Australian continent.

 

However, comparisons between the two maps show that an estimated 3.3 million km2 (almost 10 percent) of wilderness area has been lost in the intervening years. Those losses have occurred primarily in South America, which has experienced a 30 percent decline in wilderness, and Africa, which has experienced a 14 percent loss.

 


Via Dr. Stefan Gruenwald
more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Exam Preparation 3: Exam Questions and Timing - Resources - TES Australia

Exam Preparation 3: Exam Questions and Timing - Resources - TES Australia | DSC Library | Scoop.it
PDF version of PowerPoint presentation together with classic sheet on what verbs in exam questions are looking for. Includes MP3 and MindMap versions of presentation. Presentation looks at allocating time in the exam, Making sure that all questions are answered as well as structuring answers.
lyn chatfield's insight:

Some nice little summaries on exam preparation.

more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Genetic Inheritance: Genetic Crosses - Resources - TES Australia

Genetic Inheritance: Genetic Crosses - Resources - TES Australia | DSC Library | Scoop.it
A PowerPoint presentation that explores the different types of genetic crosses (monohybrid vs dihybrid) and examines some of the resulting phenotypic ratios. Developed for VCE Biology but easily adaptable.
more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Classroom Antarctica

Classroom Antarctica | DSC Library | Scoop.it
Home
lyn chatfield's insight:

This 'Continent' unit will enable students to appreciate the uniqueness of Antarctica, while developing skills in critical analysis, working scientifically, literacy, language and arts skills. 

more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

The CRAAP test - Evaluating Web Resources - LibGuides at North Carolina Agricultural & Technical State University

This is a multidisciplinary guide on evaluating research sources, especially resources found on the World Wide Web.
lyn chatfield's insight:

A useful tool which enables students to evaluate the usefulness of information on the internet.

more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Cite This For Me: The Easy Citation Generator

Cite This For Me: The Easy Citation Generator | DSC Library | Scoop.it
Automatically create your bibliography or reference list using the APA, Chicago, MLA, Vancouver, or Harvard Referencing citation styles. It's fast and free!
lyn chatfield's insight:

A useful tool for students creating bibliographies

more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Kate Hart: Citing Sources: A Quick and Graphic Guide

Kate Hart: Citing Sources: A Quick and Graphic Guide | DSC Library | Scoop.it
how to avoid plagiarism: an infographic for bloggers and harry potter fans.
lyn chatfield's insight:

A simple summary easily understood by students.

more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Genes Are Us - Meet Pamela - Resources - TES Australia

Genes Are Us - Meet Pamela - Resources - TES Australia | DSC Library | Scoop.it
Pamela is living with Sickle Cell Anaemia, an inherited blood disorder which causes bouts of intense pain that can strike anywhere in her body.

For more resources that accompany this film take a look at www.genesareus.org
more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Introduction to Genetics - Resources - TES Australia

Introduction to Genetics - Resources - TES Australia | DSC Library | Scoop.it
Discuss genes and what students already know. Then have students complete the worksheet attached that looks at their inheritance and the traits they display such as tongue rolling and widow's peak hairlines.
Complete by showing the Ishihara Colour Blindness plates as an indication of testing for genetic inheritance.
lyn chatfield's insight:

A ready- to- go worksheet and power point looking at simple genetics.

 Click on the resource and create an account if you don't already have one.

more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Genetic Inheritance: Genetic Crosses - Resources - TES Australia

Genetic Inheritance: Genetic Crosses - Resources - TES Australia | DSC Library | Scoop.it
A PowerPoint presentation that explores the different types of genetic crosses (monohybrid vs dihybrid) and examines some of the resulting phenotypic ratios. Developed for VCE Biology but easily adaptable.
more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Welcome | ScienceWeb - ASTA

Welcome | ScienceWeb - ASTA | DSC Library | Scoop.it
lyn chatfield's insight:

The Australian Science Teachers Association has produced 15 online Units of Work supporting the Australian Curriculum: Science for students in years F-10. The units were written by experienced teachers using resources available freely online and through Scootle.

more...
No comment yet.
Scooped by lyn chatfield
Scoop.it!

Cite This For Me: The Easy Citation Generator

Cite This For Me: The Easy Citation Generator | DSC Library | Scoop.it
Automatically create your bibliography or reference list using the APA, MLA, Chicago, or Harvard Referencing citation styles. It's fast and free!
more...
No comment yet.