According to the Trivers-Willard hypothesis, females of polygynous mammal species can adaptively modify offspring sex ratio, which would provide them evolutionary benefits in terms of a higher number of grand-offspring. In red deer Continue reading Heavier females produce more sons in a low-density population of red deer
Fire shapes biome distribution and community composition worldwide, and is extensively used as a management tool in flammable landscapes. There is growing concern, however, that fire could increase the vulnerability of native fauna to invasive predators. Continue reading Responses of invasive predators and native prey to a prescribed forest fire
A key task for native grassland managers is to assess when biomass reduction is necessary to maintain plant and animal diversity. This requires managers to monitor grassland structure. Continue reading The golf ball method for rapid assessment of grassland structure
Most Australian species have been significantly disadvantaged by the massive losses of habitat that has occurred over the last 200 years of colonisation. This includes many of our native birds. However, some native species have actually flourished in this altered landscape, increasing in abundance and influence. This includes the notorious Yellow-throated Miner. Continue reading BREAKING NEWS! Small birds indifferent to miner cull
Everyone enjoys a little walk around the Australian Alps. It’s pretty amazing up there. Sphagnum bogs, snowgums, grasslands and heathy veg are scattered across the rolling hills. But it’s the top of these hills that climate change is going to hit the hardest. Continue reading Fire. Warming. Fire. Warming…. SHRUBS!
Don’t think for a moment that your city is not an ecosystem. Those centres of human population are also home to a whole bunch of native plants and animals! It’s those green spaces within the hustle and bustle that these species are after. Continue reading The urban bug enjoys a spot of golf
The death of a person is usually followed up with an investigation. People generally want to know the what, when, where and how the death happened. This is particularly important when the death is untimely or suspicious. People are really keen to find out who was responsible or at fault….and of course dish out some punishment. What about when an entire species dies? Continue reading Coroner points the finger over recent extinctions
Secondary Invasion Part 3 – First, a brief recap… Yellow crazy ants invade rainforest on Christmas Island… They kill the native red land crab… And facilitate the high abundance of a whole community of exotic land snails (read the publication or the blog). So we know the mechanism of invasion success when it comes to those land snails…? Crab deletion right? Hmm, not quite the full story. Continue reading Little snails dig on leaves, indifferent to crabs
If you’re a little shrub, and you thought you didn’t need to worry about apex predators… thought the vertebrate carnivore was in your area wasn’t important to your establishment and survival… Well you need to think again. Continue reading Dingoes run the show… right down to the shrubs
There’s 15-20 million across Australia! Too easy. Common knowledge. We all know that. Known that for ages. Next question… Hang on mate, not so fast… Continue reading Cat Quiz: How many feral cats are there really??