Category Archives: Pollination

Saved by a bee: a true story, with reflections and photos from PopBio2017

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The blog has been a bit quiet of late, due to a lot of traveling on my part, starting with field work in Tenerife, then a weekend away with friends on the Isle of Wight, followed by the topic of this post: PopBio2017 – the 30th Conference of the Plant Population Biology Section of the Ecological Society of Germany, Austria and Switzerland in Halle, Germany.  And I’d like to begin with a story….

The organisers of PopBio2017 had invited me to be one of five keynote speakers at the conference and I was due to deliver a talk on “The macroecology of wind and animal pollination” first thing (09:00) on Thursday morning.  So the night before I duly set my phone’s alarm for 07:00, thinking I’d have enough time to get ready, have breakfast, then take the tram to the venue (a 15 minute ride/walk).

It was a very hot night and I left the windows open, but my mind was restless with thoughts of how to deliver the talk most effectively.  So I kept waking up during the night, and actually slept through the alarm.  The next thing I know it is 07:45 and I am being woken up by an urgent buzzing noise….from a bee!

I swear this is true: a bee had flown in through the window, buzzed for a few seconds right in front of my face, and woke me up in time to deliver my talk on pollinators!  It then turned around and flew straight back out of the window.

It actually wasn’t until I’d jumped out of bed and into the shower that I’d woken up sufficiently to appreciate what had happened…and wondered if anyone would actually believe me!  Anyway, I got to the venue with 15 minutes to spare, the talk seemed to go well, and it’s a story I think I’ll enjoy telling for some time to come.

The conference was really fabulous, with some very impressive science on show.  It was a good mix of postdocs, PhD students, and established researchers talking on a diverse range of plant ecology topics, not just “plant population biology” (whatever that really is – there was some discussion on that score).   The organisers had arranged the programme so that the keynotes in each session were followed by shorter talks broadly related to that topic, so I was followed by a series of presentations on pollination biology.  And very good they were too.

Here’s some photos from the week:

A slightly blurry audience waiting for my talk to begin (not as blurry as me after the dash to the venue however…):

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I was fascinated by the coypu that are common in the River Salle which flows through the city of Halle.  They are classed as an invasive species, but are very, very cute:

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Indeed so cute I couldn’t resist taking a selfie…

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Some interesting urban greenery including swales for flood defence:

 

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Wall plants surviving the graffiti:

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Halle’s most famous resident, Handel:

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There’s a Harry Potter feel to some parts of the town:

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The fabulous double-double-spired cathedral:

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There had to be a spiral or two, of course:

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On the Saturday after the talks had finished we took an excursion to the fascinating “Porphyry Hills” dry grasslands – unique western extensions of plant communities and species normally found in the east, including many plants of the steppe:

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These rocky outcrops have become exposed as agricultural ploughing caused the surrounding soil level to drop:

 

Some of the grassland areas have very thin soils with resultant high plant diversity:

 

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Lots in flower, though not as many pollinators as I would have liked:

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On the last evening a couple of us had a private tour of the university’s botanic garden, and well worth a visit it is too:

It was a thirsty conference – “To beer or not to beer….”?

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Finally thanks to the organisers of PopBio2017 for the invitation to speak, and to all of the conference attendees who made it such a special meeting.

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Filed under Biodiversity, Pollination, Bees, Urban biodiversity, Gardens, Macroecology, spirals

Generalist pollination can evolve from more specialised interactions: a new study just published

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There’s a long-standing idea in biology that ecological specialisation is an evolutionary “dead end” from which species can never emerge.  In other words, if a species becomes so adapted to a particular ecological strategy (could be feeding or habitat requirements or how it interacts with other species ) then no amount of natural selection will result in its descendants evolving different strategies, thereby diversifying into new species.  In particular it’s traditionally thought that evolving broader, “generalist” strategies from narrower, “specialised” ones is highly unlikely.

This has been much discussed in the literature on the ecology and evolution of pollination systems, where traditionally this “dead end” scenario has been accepted.  However a small number of case studies have shown that generalised pollination systems can evolve within much more specialised clades, beginning with Scott Armbruster and Bruce Baldwin’s study of Madagascan Dalechampia (Euphorbiaceae), published in Nature in 1998.

To this limited body of examples we can now add another case study: in the genus Miconia (Melastomataceae), generalist nectar/pollen rewarding strategies can evolve within a clade of plants that predominantly uses a more specialised, buzz-pollinated strategy involving just bees.

The work is part of the PhD research of Vinicius de Brito who is one of the researchers I was privileged to do some field work with in Brazil when I was there in 2013 – see my post: “It’s called rainforest for a reason, right?  Brazil Diary 6“.  Vini is the guy on the left of the photo accompanying this post.  Here’s the citation and a link:

de Brito, V.L.G., Rech, A.R., Ollerton, J., Sazima, M. (2017) Nectar production, reproductive success and the evolution of generalised pollination within a specialised pollen-rewarding plant family: a case study using Miconia theizans. Plant Systematics and Evolution doi:10.1007/s00606-017-1405-z 

Here’s the abstract:

Generalist plant–pollinator interactions are prevalent in nature. Here, we untangle the role of nectar production in the visitation and pollen release/deposition in Miconia theizans, a nectar-rewarding plant within the specialised pollen-rewarding plant family Melastomataceae. We described the visitation rate, nectar dynamics and pollen release from the poricidal anthers and deposition onto stigmas during flower anthesis. Afterwards, we used a linear mixed model selection approach to understand the relationship between pollen and nectar availability and insect visitation rate and the relationship between visitation rate and reproductive success. Miconia theizans was visited by 86 insect species, including buzzing and non-buzzing bees, wasps, flies, hoverflies, ants, beetles, hemipterans, cockroaches and butterflies. The nectar produced explained the visitation rate, and the pollen release from the anthers was best explained by the visitation rate of pollinivorous species. However, the visitation rates could not predict pollen deposition onto stigmas. Nectar production may explain the high insect diversity and led to an increase in reproductive success, even with unpredictable pollen deposition, indicating the adaptive value of a generalised pollination system.

As always, I’m happy to send a PDF to anyone who wants a copy, just drop me an email.

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Filed under Bees, Biodiversity, Brazil, Butterflies, Evolution, Hoverflies, Mutualism, Pollination, Wasps

Dispelling the myth that orchid species usually only have a single pollinator

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The idea that members of the plant family Orchidaceae (the orchids) “typically have exclusive relationships with their pollinators“, such that each orchid has only one pollinator, is a persistent one.  Recently I’ve encountered it on horticultural websites (follow that last link), in grant proposals, and on Wikipedia.

The problem is that it’s not true: it’s a myth that is perpetuated by people (often botanists or horticulturalists) who may know a lot about orchids but don’t know as much as they think they know about pollination ecology.

Orchids certainly have some fascinating and often quite intricate floral mechanisms to ensure pollination, but these have not necessarily evolved to attract and exploit just one species of pollinator.  Even in the case of sexually deceptive orchids that fool their (male) pollinating insects into believing that they are mating with a female of the same species, it is sometimes the case that more than one insect species is involved.  For example, in the well studied genus Ophrysflowers are pollinated by a narrow taxonomic range of pollinators, from a single species to up to five closely related species“.  As the authors of that last paper state, this is not the same as the mythological “extreme case of one orchid/one pollinator”.

Likewise different species of orchid bees may pollinate the same orchid flowers as they visit to collect scent compounds; for example in the Brazilian species Dichaea pendula, species from at least two different bee genera act as pollinators (Nunes et al. 2016).

The fact that “one orchid/one pollinator” is a myth is not new knowledge, it’s been widely discussed in the pollination ecology literature for decades.  For example, in our 1996 paper “Generalization in Pollination Systems, and Why it Matters” we showed data from the late 19th/early 20th centuries that clearly indicated a range of specialization in European orchids (follow that link and look at  Figure 3B).  Even earlier than this, in his 1992 paper “Trends in the pollination ecology of the Orchidaceae: evolution and systematics” Raymond Tremblay showed that only about 62% of species for which he could find data had a single pollinator, and that this varied considerably between different subfamilies of Orchidaceae, with some subfamilies being more specialized than others.

More recently, in a chapter in the 2006 book I co-edited with Nick Waser entitled “Geographical Variation in Diversity and Specificity of Pollination Systems” Steve Johnson, Andrew Hingston and myself looked at data from southern African compared to North American and European orchids; here’s the figure from that assessment:

 

Ollerton et al Figure 7 - JPEG

Orchids  are more specialized in southern Africa compared to Europe and North America (as are a number of other plant groups including the asclepiads, which we’re comparing them with here).  But even in southern Africa, only about 65% of the orchids studied have a single pollinator species.  It’s worth pointing out, though, that many of the species included in this analysis, and in Raymond Tremblay’s paper, have been studied only at single sites and often in single years, meaning that we have no idea if there is any spatio-temporal variation in the pollinators a particular orchid species exploits.

Why does this myth persist?  I think it’s for the same reason that myths are retold from generation to generation: they are great stories that fascinate the teller and the audience.  Indeed, orchids are very special plants with some amazing floral and vegetative adaptations, fascinating relationships with fungi, and incredible diversity.  But we don’t have to mythologise their relationships with their pollinators to try to make orchids more special than they already are.

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Filed under Bees, Biodiversity, History of science, Pollination

Some upcoming public lectures

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Giving public lectures to special interest groups in and around Northamptonshire is always a pleasure as the audiences are usually very receptive.  Just been through my diary and realised that I’m giving five such lectures over the next few months, on pollinators, conservation,  ecosystem services, and so on:

8th March – “Bees for dinner?  The importance of pollinators in a changing world” – Long Buckby Women’s Institute – open to all and not just women!

22nd March – “A city without trees is like a bird without feathers” – Litchborough Gardening Club [title is slightly wrong on that link…]

5th April 2 – “Darwin’s Unrequited Isle: a personal natural history of Tenerife” – Friends of Linford Lakes (Milton Keynes)

27th June – “Pollinator diversity” – Chalfonts Beekeepers (Buckinghamshire)

12th July – “Plants & pollinators – more than just honey bees” – Cancer Research UK ladies lunch club fundraiser at Wellingborough Golf Club

Some of these will certainly be open to guests if you’re not a member and want to come along and hear what I have to say.

Happy to discuss giving a talk to other groups, please do get in touch, though I’m probably not available until after the summer as I’m also giving a keynote lecture at the PopBio conference in Germany in May and a couple of short talks at the International Botanical Congress in China in July.

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Filed under Bees, Biodiversity, Gardens, Honey bees, Pollination, Tenerife

Links to some recent pollinator-related papers, posts, projects…. and pedals

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For weeks now I’ve been meaning to post some links to pollinator-related items that have caught my eye, but have only just found time to pull them together, hence some of these are a little dated but should still be of interest:

  • By pure coincidence Hazel Chapman (the senior author of that paper) came to Northampton a few weeks ago to give a seminar about her Nigerian Montane Forest Project which is well worth checking out and which, in the future, will have a large pollinator focus.
  • The Journal of Pollination Ecology (where I remain an editor) has a new volume out – it’s open access and has some really nice papers – here’s the link.
  • There’s been a few stories doing the rounds about robot pollinators and how they are going to replace insects.  It’s all nonsense, of course, and in a recent blog post Dave Goulson nails the arguments very well – see: Are robotic bees the future? [spoiler alert – the answer’s “No”].  Likewise, over on her blog, Manu Saunders opines that: “Artificial pollinators are cool, but not the solution“.  What the technologists who are promoting these ideas, and related concepts around the “Internet of Things”, don’t seem to get is that all of this tech has environmental costs associated with it: resource/pollution costs for making it; energy costs for using it; and disposal/pollution costs when it reaches the end of its life.  Applying a green wash of “let’s use drones for pollinating flowers” doesn’t make the tech any more environmentally sustainable, quite the opposite.  Sorry, rant over…
  • Ben Geslin and colleagues have written an interesting review in Advances in Ecological Research called “Massively Introduced Managed Species and Their Consequences for Plant–Pollinator Interactions” that focuses on both mass-flowering crop plants (e.g. oil seed rape) and domesticated, highly abundant pollinators such as honey bees, and what their increase might mean for natural communities of plants and pollinators, particularly in sensitive environments such as oceanic islands.
  • There’s a guitar effects pedal called the Pollinator – from the review:  “The Pollinator is a living thing, sensitive to its environment and surroundings, and it becomes an extension of the guitarist playing it.”  Quite.
  • Nine species of bee in the genus Perdita that are new to science have been described from localities in the the southwestern USA.  Here’s a link to a lovely video that shows these bees, their distinguishing features, and how they were named (mainly for characters from Shakespeare’s plays).  Not very impressed with the snarky “if scientists had bothered to look” title of the article though.
  • Finally, a new citizen science project has been launched designed to understand how hoverflies evolve mimicry of bees and wasps – looks interesting, please take part – here’s the link.  Just be aware, it’s a bit addictive!

As always, feel free to suggest links to items you found of interest.

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Filed under Bees, Biodiversity, Birds, Hoverflies, Pollination, Wasps

What’s green, waxy and smells of cheese? The flowers of Deherainia smaragdina!

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A tweet this morning from Chris Howell at Birmingham Botanical Garden reminded me that for some time I’ve been meaning to post up images of an enigmatic flower that has intrigued me for over a decade, ever since I encountered it in the Palm House at Kew.

It was the smell that I first noticed: strong and pungent like a ripe blue cheese, or unwashed feet.  This drew me to a small, evergreen shrub with the wonderfully eliding name of Deherainia smaragdina, a Mexican member of the primula family (Primulaceae) though older sources put it in the Theophrastaceae, a family no longer recognised by most botanists.

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At first I couldn’t spot where the smell was coming from, then I saw the flowers: larger than I was expecting (a couple of centimetres across) given that they were not immediately obvious, and very waxy and stiff to the touch.  In fact (to the human eye) it was quite well camouflaged against the plant’s own leaves, not at all what one expects from a flower.  However camouflaged flowers that rely only on scent for attracting insects are not unknown in the plant kingdom, and probably under-recorded: see for example Adam Shuttleworth and Steve Johnson’s work on wasp-pollinated flowers of asclepiads (Apocynaceae) in South Africa, where the “cryptic colouring” is similar in reflectance to the background vegetation.  “Smaragdine” means emerald-like, so a very fitting species name.

The scent tends to come and go, perhaps affected by temperature or light levels.  Under the scanning electron microscope the surface of the petals has some intriguing bulbous cells (which I’d hypothesise produce the scent) and the wavy, waxy covering of the cuticle is clearly visible:

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Another intriguing thing about Deherainia smaragdina is that the bisexual flowers are in a male phase when they first open, moving into female phase only after a day or two. Compare the two flowers below.  In the male phase (left) the pollen-bearing stamens are centered in the flower, hiding the female stigma (which is probably not receptive at this stage); over time the stamens move outwards to expose the stigma and the flower goes into female phase (the flower on the right):

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Why this plant should smell of cheese is a mystery, but it’s probably attracting a particular type of pollinator – though what they are no one knows !  It’s never been studied, as far as I’m aware.  We might predict from the scent that it’s flies, but I think that wasps are also a possibility.  If anyone is doing field work in the parts of Mexico where this plant grows, please look out for it and try to photograph flower visitors: I’d love to hear from you!

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Filed under Biodiversity, Pollination, Wasps

When did plastic plants become acceptable?

Plants are important.  Really, really important.  They play important roles in society and in the nature that supports our societies: plants feed us; they are a source of many pharmaceuticals; they produce oxygen and store up carbon dioxide; they can remove pollutants from city atmospheres; and they are the foundation for much of the world’s ecological functioning.  In addition they inspire poets, artists, musicians, and have huge cultural significance, as well as bringing beauty and biodiversity to even the most urban of environments. Plants positively add to our quality of life, and make us happy, whether we are aware of it or not.

OK, there’s a bit of personal bias going on here: I’ve always loved studying and growing plants, they are a huge part of my life.  But the basic facts of what I laid out in that opening paragraph are correct: plants matter.  So I find it troubling that there seems to be a recent trend in using artificial (mainly plastic) plants indoors and in outside “gardens”.  When did this happen?  When did plastic plants become acceptable?

It first struck me that there had been a recent shift in how we view plastic plants back in the summer when I visited the newly refurbished main restaurant at the university’s Park Campus.  The refurb was very nicely done and there’s a big display about how much of the university’s waste we are recycling, and there’s lots of greenery about the place – except that most of it is plastic.

Then in November we visited my son Patrick in Lancaster.  We stayed a night in a nice hotel in the city centre, in a room that led out into a private courtyard – full of plastic plants.  There was a plastic lawn, a plastic palm, even plastic ivy.  Ivy!  One of the easiest plants in the world to grow – why would you need to make it out of plastic?!  It makes itself perfectly well which you can see if you peep over the wall at the back of the courtyard:

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Then the following week I was in London at the Wellcome Trust to take part in a project review panel.  The Wellcome’s building near Euston Station is wonderful, really striking on the inside, full of light and life.  I was initially please to see an avenue of fig trees in large containers arrayed along the centre of the main concourse:

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But when I looked closely I realised that although the trunks and branches were real, these were not living plants: the leaves are artificial, made from wire and synthetic material.  So someone has gone to the trouble of growing real fig trees only to dismember them and festoon them with faux foliage.  Please, no one tell Mike Shanahan!

I’m really surprised at the Wellcome Trust, an organisation I have a lot of respect for;  we know that real plants have a positive effect on psychology and health, though I very much doubt that the same can be said for artificial ones.  In their defence the Wellcome Trust building does have some real plants scattered about the place, but they missed a huge opportunity in not using real figs here.  Even that cathedral to capitalism that is the Milton Keynes shopping centre uses real plants in most of its displays, including some lovely tree ferns:

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And splendid palms:

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Finally, insult was added to injury as we entered the New Year.  As I mentioned in my Spiral Sunday post a couple of weeks ago, we bought a wreath as a Christmas decoration and I took it apart to compost and recycle at the start of the year.  What I hadn’t noticed when we bought it was that half of the holly berries were plastic:

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This was hugely ironic given our recent study of how insects boost the value of holly by pollinating the female flowers that produce the berries!

All of this is more than just snobbery on my part.  Yes, you can argue that plastic plants are a bit naff and can never take the place of the “real” thing.  But my main concern here is an environmental one: plastic plants require resources (usually oil-based polymers and energy) to make.  And I doubt very much whether they are recycled very often.  Yes, real plants also cost resources to grow (though that can be minimised depending on how they are grown).  But they also provide a range of benefits and, at the end of their life, they can be composted.  Not something I can do with my plastic holly berries.  Not only that, but I suspect that most (all?) of the plastic plants that are sold are manufactured in the Far East.  Using British- or Europe-grown real plants would cut down on the carbon-miles required and support more local horticultural industries.

Early in 2017 Andrew Lucas at Swansea University, on Twitter, described what he thought was the most depressing tweet of 2017 so far:  “Transform your garden today: buy Artificial Grass from ExpressGrass. Cut to your size for easy DIY installation”.

Agreed, hugely depressing, but we can do something about it: stop buying fake plants.  Perhaps we need a Campaign for Real Plants?  Its theme tune could be Radiohead’s Fake Plastic Trees:

Her green plastic watering can
For her fake Chinese rubber plant
In the fake plastic earth
That she bought from a rubber man
In a town full of rubber plans
To get rid of itself…..

……It wears me out

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Filed under Biodiversity, Biodiversity and culture, Ecosystem services, Gardens, Personal biodiversity, Pollination, University of Northampton, Urban biodiversity

Insect pollinators boost the market price of holly and mistletoe: a new study just published

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Each year I’ve always added at least one Christmas-themed biodiversity post to the blog, for example: Thank the insects for Christmas, A Christmas vignette, and Six Kingdoms for Christmas.  That’s partly because I really like Christmas as a winter festival, with its folklore and customs.  But it’s also because these are a great vehicle to demonstrate how pervasive and important is natural capital and the ecosystem services it provides to society.

This year I’ve gone one stage further and actually published some Christmassy research to back up the blog post.  Now, in a new study published in the Journal of Pollination Ecology, we have shown how important insect pollinators are in determining the market value of two of the most emblematic of Christmas plants: holly (Ilex aquifolium) and mistletoe (Viscum album).  Here’s the full reference with a link to the paper itself, which is open access:

Ollerton, J., Rouquette, J.R. & Breeze, T.D. (2016) Insect pollinators boost the market price of culturally important crops: holly, mistletoe and the spirit of Christmas. Journal of Pollination Ecology 19: 93-97

Holly and mistletoe are two seasonal crops that play a culturally important role as symbols of Christmas across the world, though both also have pre-Christian pagan roots. Now for the first time the role of insect pollinators in determining the commercial value of these plants has been investigated, using sales records going back over the last eleven years from Britain’s largest annual auction of holly and mistletoe, held every year in Worcestershire.

Analysis of the sales records of Nick Champion Auctions in Tenbury Wells shows that insect pollination raises the sale price of these crops by on average two to three times. This is because holly and mistletoe with berries is more sought after than material without berries, with wholesale buyers paying higher prices at auction. These berries in turn are the result of pollination by insects such as flies and bees: both holly and mistletoe are 100% dependent on insect pollination due to their having separate male and female plants.

There is some annual variation to the prices, and in years where berries are scarce (possibly due to low insect numbers) the price difference can be four-fold.

Due to concerns about pollinator declines and food security there is huge interest in the role of bees and other insects in supporting agriculture, and how we can value that role. However we believe that this is the first study showing that insect pollinators play a large part in determining the value of culturally symbolic, non-food crops. Almost all of the economic valuations of insect pollination to agriculture have focused on food crops such as beans, apples, cocoa, coffee, and so forth. Very little is known about how the value of non-food crops (fibres, construction materials, pharmaceuticals, ornamentals, etc.) is enhanced by insect pollination. This is an area where much more research is required.

But in the mean time, where better to end than with a bit of seasonal John Clare?

The shepherd, now no more afraid,
Since custom doth the chance bestow,
Starts up to kiss the giggling maid
Beneath the branch of mistletoe
That ‘neath each cottage beam is seen,
With pearl-like berries shining gay;
The shadow still of what hath been,
Which fashion yearly fades away.

The Shepherd’s Calendar (1827)

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Filed under Bees, Biodiversity, Biodiversity and culture, Ecosystem services, Hedgerows, Mutualism, Pollination, University of Northampton

Recent developments in pollinator conservation: IPBES, 10 Policies, pesticide conspiracies, and more

Bee on apple blossom - 1st May 2015

It’s been a busy week for anyone interested in pollinators and their conservation, lots of things happening that I thought I would summarise in a single post with links.

First of all IPBES (the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services) has finally released the full text of its Thematic Assessment on Pollinators, Pollination and Food Production  – nine months after it was discussed at the 4th IPBES Plenary Meeting, and three months after the Summary for Policymakers came out.  Even now the document is not in its ultimate state, it’s the text without its final layout or appendices (though it still runs to 868 pages!)  The preamble to the report states that:  “A full laid out colour version, including a preface and annexes will be posted here shortly”.

Sources tell me that there have been some delays while the exact style and colour scheme of the report are finalised, which, if true, is frankly not very encouraging : this is an important document that needed to made public at the earliest opportunity.  I accept that it’s got to be correct, and it’s a complex report, and this is not a criticism of the authors, rather of IPBES’s bureaucracy.  Pollination ecology and pollinator conservation is a fast moving field and there have already been significant scientific and policy developments since the text was finalised which will not be incorporated into this version.

To coincide with the release of the report comes two important articles in the two most prestigious scientific journals by some of the authors of the report.  In “Ten Policies for Pollinators” (Dicks et al. Science 354: 975-976) the authors set out a series of recommendations for politicians.  The article is paywalled so here’s their list with some annotations [in square brackets]:

1. Raise pesticide regulatory standards [to include our most important pollinators – wild bees and other insects!]
2. Promote integrated pest management (IPM) [rather than automatically feeding the profits of agrochemical companies].
3. Include indirect and sublethal effects in GM crop risk assessments.
4. Regulate movement of managed pollinators [lots of evidence that poor husbandry is a major cause of colony collapse disorder, for example].
5. Develop incentives, such as insurance schemes, to help farmers benefit from ecosystem services instead of agrochemicals.
6. Recognize pollination as an agricultural input in extension services.
7. Support diversified farming systems [does Brexit provide an opportunity to do this in the UK?]
8. Conserve and restore “green infrastructure” (a network of habitats that pollinators can move between) in agricultural and urban landscapes [already lots being done on this in urban areas but much less in rural areas].
9. Develop long-term monitoring of pollinators and pollination [there’s already been a report on this – expect more news early next year].
10. Fund participatory research on improving yields in organic, diversified, and ecologically intensified farming.

Overall it’s a sensible set of recommendations – the only ones that I would have added would be to develop education and awareness programmes of the importance of natural capital and ecosystem services, aimed at farmers, civil servants, politicians, planners, business and industry, developers, etc.  And also to build consideration of natural capital into local planning systems so that the loss of habitats, trees, ponds, etc. are properly accounted for.  I’m sure others can think of more – feel free to comment.

Getting politicians to take notice of these recommendations in an age where scientific experts are derided as no different to “soothsayers and astrologers” will be a challenge though.

Lead author Lynn Dicks discussed these recommendations on the BBC Radio 4 Farming Today programme (from about 3:27) – well worth a listen.

Following on from this some of the authors of the 10 recommendations article were also involved in a review published this week entitled “Safeguarding pollinators and their values to human well-being” (Potts et al. Nature) – hopefully that link will take you to the full text of the article which is being widely circulated for free in a read-only form (it can’t be downloaded unless you have an e-subscription to Nature).

On the subject of safeguarding pollinators (and specifically from pesticides) a video of Dave Goulson speaking at the 2015 National Honey Show appears to have been edited to remove his comments about neonicotinoid pesticides (about 34:08 to 34:28).  Dave’s not sure if this is conspiracy or cock-up, but it’s an odd coincidence that this is the only glitch in an otherwise well-produced video.

At about 39:20 Dave talks about the importance of engaging kids with nature and specifically pollinators.  I completely agree and last week did a live Q&A phone interview with Year 7 pupils at Abbeyfield School in Northampton who are doing a project on bees.   The kids asked some great questions and were very well informed – a credit to their teachers!

This week there was a lot of pollinator and pollination ecology being discussed at the Ecological Society of Australia’s annual conference – Manu Saunders has produced a Storify to summarise the talks and Twitter comments – here’s the link.

Linked to this, against my better judgement and as an experiment, I’ve finally joined Twitter.  It’s a bit of an experiment to see how I get on and so far I’m enjoying it, though I’m sticking to science and environmental news – my handle is @JeffOllerton if you want to follow or tweet at me.

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Filed under Bees, Biodiversity, Ecosystem services, Honey bees, IPBES, Neonicotinoids, Pollination, Urban biodiversity

Managing for Pollinators – a special issue of the Natural Areas Journal

Inula at Ravensthorpe 20160710_145426The October issue of the Natural Areas Journal is a special one devoted to the topic of “Managing for Pollinators”.  All of the papers have a North American focus but I think that they will be of general interest to anyone, anywhere in the world, who is concerned with how best to manage habitats for pollinators.  Here’s the contents page of the issue, copied and pasted from the site; I’m not sure if the full text links will work if you or your institution does not have full text access, but you should at least be able to view the abstracts:

Editorial: Pollinators are in Our Nature Full Access

Introduction by USFS Chief Tidwell – Pollinators and Pollination open access

pg(s) 361–361

Citation : Full Text : PDF (227 KB)

National Seed Strategy: Restoring Pollinator Habitat Begins with the Right Seed in the Right Place at the Right Time Full Access

Peggy Olwell and Lindsey Riibe
pg(s) 363–365

Citation : Full Text : PDF (1479 KB)

Hummingbird Conservation in Mexico: The Natural Protected Areas System Full Access

M.C. Arizmendi, H. Berlanga, C. Rodríguez-Flores, V. Vargas-Canales, L. Montes-Leyva and R. Lira
pg(s) 366–376

Abstract & References : Full Text : PDF (1302 KB)

Floral Guilds of Bees in Sagebrush Steppe: Comparing Bee Usage of Wildflowers Available for Postfire Restoration Full Access

James H. Cane and Byron Love
pg(s) 377–391

Abstract & References : Full Text : PDF (1500 KB)

The Role of Floral Density in Determining Bee Foraging Behavior: A Natural Experiment Full Access

Bethanne Bruninga-Socolar, Elizabeth E. Crone and Rachael Winfree
pg(s) 392–399

Abstract & References : Full Text : PDF (1219 KB)

Common Methods for Tallgrass Prairie Restoration and Their Potential Effects on Bee Diversity Full Access

Alexandra Harmon-Threatt and Kristen Chin
pg(s) 400–411

Abstract & References : Full Text : PDF (300 KB)

Status, Threats and Conservation Recommendations for Wild Bumble Bees (Bombus spp.) in Ontario, Canada: A Review for Policymakers and Practitioners Full Access

Sheila R. Colla
pg(s) 412–426

Abstract & References : Full Text : PDF (420 KB)

Conserving Pollinators in North American Forests: A Review Full Access

James L. Hanula, Michael D. Ulyshen and Scott Horn
pg(s) 427–439

Abstract & References : Full Text : PDF (1711 KB)

Dispersal Limitation, Climate Change, and Practical Tools for Butterfly Conservation in Intensively Used Landscapes Full Access

Laura E. Coristine, Peter Soroye, Rosana Nobre Soares, Cassandra Robillard and Jeremy T. Kerr
pg(s) 440–452

Abstract & References : Full Text : PDF (4647 KB) : Supplementary Materials

Revised State Wildlife Action Plans Offer New Opportunities for Pollinator Conservation in the USA Full Access

Jonathan R. Mawdsley and Mark Humpert
pg(s) 453–457

Abstract & References : Full Text : PDF (249 KB)

Diet Overlap of Mammalian Herbivores and Native Bees: Implications for Managing Co-occurring Grazers and Pollinators Full Access

Sandra J. DeBano, Samantha M. Roof, Mary M. Rowland and Lauren A. Smith
pg(s) 458–477

Abstract & References : Full Text : PDF (1537 KB)

The Role of Honey Bees as Pollinators in Natural Areas Full Access

Clare E. Aslan, Christina T. Liang, Ben Galindo, Hill Kimberly and Walter Topete
pg(s) 478–488

Abstract & References : Full Text : PDF (467 KB)

Food Chain Restoration for Pollinators: Regional Habitat Recovery Strategies Involving Protected Areas of the Southwest Full Access

Steve Buckley and Gary Paul Nabhan
pg(s) 489–497

Abstract & References : Full Text : PDF (732 KB)

Forbs: Foundation for Restoration of Monarch Butterflies, other Pollinators, and Greater Sage-Grouse in the Western United States Full Access

R. Kasten Dumroese, Tara Luna, Jeremiah R. Pinto and Thomas D. Landis
pg(s) 499–511

Abstract & References : Full Text : PDF (1716 KB)

Using Pollinator Seed Mixes in Landscape Restoration Boosts Bee Visitation and Reproduction in the Rare Local Endemic Santa Susana Tarweed,Deinandra minthornii Full Access

Mary B. Galea, Victoria Wojcik and Christopher Dunn
pg(s) 512–522

Abstract & References : Full Text : PDF (2880 KB)

Save Our Bats, Save Our Tequila: Industry and Science Join Forces to Help Bats and Agaves Full Access

Roberto-Emiliano Trejo-Salazar, Luis E. Eguiarte, David Suro-Piñera and Rodrigo A. Medellin
pg(s) 523–530

Abstract & References : Full Text : PDF (463 KB)

The Importance of Phenological Diversity in Seed Mixes for Pollinator Restoration Full Access

Kayri Havens and Pati Vitt
pg(s) 531–537

Abstract & References : Full Text : PDF (2208 KB) : Supplementary Materials

Stewardship in Action Full Access

Sarah Riehl
pg(s) 538–541

Citation : Full Text : PDF (595 KB)

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