Tree guards and weed mats: is protection worth the cost?

Back when I started as a fresh-faced lecturer at Lincoln University in the mid 90s I contributed to a third year class called Wildlife Management.  Graham Hickling was the main lecturer and provided the heft of wildlife management. He had lots of hands-on experience in working with possums, stoats, rabbits…

Nematode outlines and wormy crop problems: the fifth EcoLincNZ podcast

Adrian talks to Dr Manjula Kularathna who has just stared at a lecturer at Lincoln University. Manjula is passionate about nematodes and cricket. Manjula is particularly interested in nematodes that affect crops and has worked extensively on nematodes in soy and maize crops. New Zealand has been lacking any researcher in…

Weta motels, beetle show and tells and biodiversity positive cows: the fourth EcoLincNZ podcast

Mike Bowie has been passionate about preserving and restoring biodiversity for his whole career. He has worked with a number of community groups to achieve this goal. He is also very active in outreach and can often be found with school groups introducing the next generations to the diversity of…

No Buzz, No Food, No Joke.

Decline of insect pollination and its economic effect on NZ crop production. Honey Bee in Apple Tree My earliest memory of wanting to become a scientist goes way back. I was only 8 years old when I imagined myself lying somewhere in the Amazon, observing the behaviour of small mammals…

Energy or food, what would you choose?

One of the major global challenges we are currently faced with is providing enough food for our ever-growing global population. As most people are aware now, the global population is going to increase from 7.3 billion to roughly 9.7 billion by 2050. We are already facing issues with food shortages and…

Wondering about wandering possums: Understanding possum movement will save our livestock

New Zealand is home to many introduced species, some of which pose threats to the native flora and fauna. One such “invader” is the brushtail possum, a cat-sized and nocturnal marsupial introduced into New Zealand during the Nineteenth Century, for the fur industry. Possums have big impacts not only on the…

Craft beers and crafty bugs

I have to admit a certain fondness for craft beers. I particularly like the big tasting American pale ales but will generally try any old thing that I come across. There is certainly a large diversity of craft beers around and it taps into that collector gene that gets you excited…

Balancing the risks and benefits of biological control

Biological control against introduced pests in New Zealand have been used constantly since the late 19th century. However, it is much harder to introduce new agents now due to regulations set by the New Zealand Governments Environmental Protection Agency (EPA), previously known as the Environmental Risk Management Authority (ERMA). Biological control…

Summer success for ballooners: spiders take the high road

New Zealand is renowned for the changes that have been wrought on it by humans.  First by Maori, then by Europeans.  One of the long term changes created by Maori have been the tussock grasslands of Canterbury, Southland and Otago.  The local fauna have adapted and created their own ecosystem.  Over the…

The invasion of Californian Thistle (and how to fight back!)

Since 1878, the dreaded Californian thistle has caused mayhem throughout New Zealand farms! It is very problematic to the country’s pastoral farming systems, costing close to $700 million each year. The invaders have been subjected to a continuous battle with herbicides. This has been an effective, if costly, method of control…