Australia’s threatened insects

A couple of weeks ago I gave a talk at the Insect Ecology Research Chapter workshop at the Ecological Society of Australia’s annual conference in Brisbane. I talked about how policy and popular media influence insect conservation in Australia; as an example, I discussed this research by Toby Smith and me showing how introduced honey bees dominate mainstream media coverage of pollinators in Australia.

I also collated data on which insect species are officially listed as threatened species in Australia. In Australia, we have a national list (under the Commonwealth Environment Protection and Biodiversity Conservation Act 1999) of flora and fauna species that are considered threatened at a national scale. In addition, each individual state and territory has its own threatened species list under various state legislation. Continue reading

Nature’s sugar shack

Following on with the theme from my last post, here’s an article I wrote for the latest issue of the wonderful Wildlife Australia magazine.

Scale insects get a hard time. We usually think of them as pests, based on our experience with them in gardens and farms. But if a scale insect is living on a tree in the middle of a forest far from any human community, is it a pest? Or part of a complex web of interactions? Every living thing contributes to ecosystem function somehow and there are lots of interesting interactions that we overlook by focusing on simplistic labels.

Click on the image below to read the article.

© Manu Saunders 2018

Sugar teaspoons for bees and science communication

Fakenewsflash: the recent Facebook post claiming to be from David Attenborough, suggesting that we should feed floundering bees a sugar solution to ‘save’ them, was faked.

I’m not on Facebook, but I saw the original post via Twitter, where many popular non-profit and government organisations promoted it (it now seems that many have deleted their posts).

I didn’t know it was a fake post at the time, but I didn’t agree with it so didn’t share it or comment on it. I didn’t want to be the Grinch that disagreed with the popular personality. And perhaps the pollinator message would reach a new audience, despite the fake news…

But what price new audiences? Continue reading

Bumblebees are frequent flyers – what are the impacts?

The Applied Ecologist's Blog

Addressing pollinator introduction policy and the effects introduced species can have on local ecosystems, Romina Rader, Manu Saunders and Tobias Smith discuss the recent Policy Direction, Coordinated species importation policies are needed to reduce serious invasions globally: The case of alien bumblebees in South America by Aizen et al.

Bombus Photo by A. Saez

Bumblebees (Bombus spp.) are large, iconic pollinators of many wild flowers and crops.  Their ability to buzz-pollinate flowers with poricidal anthers and their ease of husbandry has led to the domestication of several species as managed pollinators, particularly Bombus terrestris, a native to Europe.  In many countries, bumblebee colonies are now mass-produced to pollinate a range of different crops in greenhouses, polytunnels and open fields, with an estimatedannual value of €55 million. The recent Policy Direction by Aizen et al.  investigates the consequences of this rapid expansion by reviewing the current…

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The Importance of Surveying Pollinators Across Various Environmental Conditions

This is a guest post by Emma Goodwin, a UNE honours student I’m co-supervising with Romina Rader and Francisco Encinas-Viso at CSIRO. Emma spent a few weeks over summer in Kosciuszko National Park, catching pollinators and collecting data on alpine plant-pollinator networks, and is currently writing up her exciting results! This blog is co-posted over at the Rader Lab website.

Recent plant-pollinator network studies have been concerned with the impacts that climate change may have on pollination across various ecosystems, particularly in alpine regions. Many of these studies are investigating ‘phenological mismatch’ as a significant issue that may result from climate change.

‘Phenological mismatch’ or ‘phenological asynchrony’ is used to refer to when the emergence of pollinators and flowering time of plants becomes out of sync over time. If these two processes become out of sync then it reduces the potential for flowering plants to be pollinated. Continue reading

New story: Farmer wants a hive

I haven’t written for The Conversation (TC) for a while, and this article was a new experience for me: a commission via Twitter! A TC editor saw a live tweet from a talk I gave at a conference in April (where I mentioned that Australian almond growers rent honey bee hives to pollinate blossoms), and contacted me to write a story elaborating on the theme.

Read the story here, covering the basic ins and outs of hive rental, as well as the important role of wild pollinators in crop pollination, which we still know very little about. Continue reading

Crop pollination depends on wild AND managed pollinators

I just published this letter with Toby Smith and Romina Rader, in response to an opinion piece in Science back in January. The original paper argues that high densities of honey bees can harm wild pollinators (this can happen in some contexts).

It also suggests that a first step toward a conservation strategy for wild pollinators is that crop pollination by managed honey bees “should not be considered an ecosystem service” because those services “are delivered by an agricultural animal and not the local ecosystems”.

This highlights a common misinterpretation of what ecosystem services is all about. Services are delivered by interactions between species (including Homo sapiens) and their environments at multiple scales, not individual organisms or natural ecosystems. Continue reading