Tagged: invasive species

The winners and losers of Antarctica’s great thaw - Guest Work

Guest Work Jun 30, 2017

By Jasmine Lee, The University of Queensland; Justine Shaw, The University of Queensland, and Richard Fuller, The University of Queensland When you think of Antarctica, you probably picture vast, continuous ice sheets and glaciers, with maybe a penguin or two thrown in. Yet most Antarctic plants and animals live in the permanently ice-free areas … Read More

NZ researchers line up worst island invaders - News

John Kerr Jun 14, 2017

New Zealand conservation researchers have assembled a rogues’ gallery of the worst invasive species for islands around the world. In a new article in Environmental Conservation, published this week, Dr James Russel from the University of Auckland and colleagues review the challenges of holding invaders at bay on small island states. Invasive species can have a detrimental impact on … Read More

Widespread invasive species control is a risky business - Guest Work

Guest Work May 26, 2017

By R. Keller Kopf, Charles Sturt University; Dale Nimmo, Charles Sturt University, and Paul Humphries, Charles Sturt University In 1977, on the islands of French Polynesia, government authorities released a predatory snail. They hoped this introduction would effectively control another species of invasive snail, previously introduced to supply escargot. Instead, by the early … Read More

Be careful who you trade with – New Zealand’s biosecurity threat vectors - News

Erica Mather Jun 17, 2016

There is an increased likelihood that invasive species arrive in New Zealand from countries with poor regulation and low political stability, according to research published in Proceedings of the Royal Society B. Research released this week from Victoria University of Wellington reveals that a country’s level of governance and development has a strong impact on their risk of exporting exotic … Read More

Protecting New Zealand’s natural treasures - Mātau Taiao

Laura Goodall Feb 27, 2016

Tangata Whenua — People of the Land — is the name that Māori call themselves as indigenous New Zealanders, and likely signifies the deep roots they have to this green and blue place of jagged peaks and valleys.  The land sustains us. It carries paths to the future as well as ties to the past: whatungarongaro te tangata, toitū te … Read More

Food webs: Who eats who, and what does that tell us? - Waiology

Waiology Dec 02, 2014

By Elizabeth Graham Food webs are maps of “who eats who” within an ecosystem (Figure 1a). Each node, or point, in the web represents a species or group of organisms; nodes are connected by a link if there is a known feeding relationship between the two groups. Though they are built on simple predator-prey relationships, food webs integrate complex information … Read More