A final warning to planet Earth

Writing in the scientific journal Bioscience, 15,364 scientists from 184 countries have issued a “warning to humanity” and present a radical agenda to protect planet Earth. We, the billions of people believing in human exceptionalism, categorically reject this agenda and issue in return a stark warning to planet Earth. No amount of facts showing that planet Earth is in a dire state will have us changing our mindset. We do not care about planet Earth. We care about our next devices and their latest cool features. We want more stuff.

The authors of this warning ignore the obvious facts that the era of poets marveling at the diversity of flower or insect species is over and that the real-world wildlife has now become obsolete. We simply take our smartphones to overlay customized virtual creatures on our surrounding environment and dispose them when new trends dictate. There is no longer a need to preserve filthy and dangerous wildlife that moreover lives in places where Amazon does not deliver. More iPhone are sold per day than there are lions, tigers, elephants and gorillas on the planet: this should alert the signatories to what really matters, were they not ideologically biased against human progress.

Those scientists argue that we are approaching many of the planet limits. We refuse to accept any kind of limits: growth must indefinitely prevail unrestricted. We officially summon planet Earth to abandon its intransigent attitude and accept the inevitable: an extension of its biological and physical limits. Should planet Earth stick with its hard line ideological stance, it needs to be aware that mankind will never compromise and that we will seek a second planet. The universe is like our ambition: limitless.

The new economy of nature, whereby ecosystem services such as pollination are monetarily valued, should not be understood as another dogmatic way of protecting planet Earth. It is instead an invitation to producers and shareholders to conquer new markets by outcompeting nature with better services at a cheaper price for consumers. Ecosystems must fight for their survival like any other business. Protecting nature even more would give it an undue competitive advantage against our industries. If our agricultural practices endanger bees pollinating crops, we do not need to change these practices. Instead we let bees disappear and replace them by AI powered micro drones – which do not sting and create many jobs.

Those scientists obvious ideological aim is to inspire discussions on broader questions relevant to overconsumption, overpopulation and how our institutions can meet the challenge of reducing human pressure on planet Earth. We find this unacceptable and call on the signatories of to join us on the side of winners against planet Earth, and hence to symbolically withdraw their signatures by not engaging in any of the research suggested in the warning to humanity. Fellow scientists, ask not what more you can do for planet Earth, ask what more planet Earth can do for you. Both left and right politicians are already united in this truly bipartisan issue that beautifully transcends the political divide: worshipping growth and denying that we depend on our environment.

We therefore strongly oppose the agenda accompanying the second warning to humanity and will not tolerate any obstacle against our way of life –be it tree-huggers or trees themselves. At the first Earth Summit in Rio de Janeiro in 1992, the 41st U.S. President claimed “our way of life is not up for negotiation”. Today, speaking in the name of billions of people, we proudly claim to all be U.S. presidents. Planet Earth better be warned.

Guillaume Chapron¹,  Harold Levrel²,  Yves Meinard³ &  Franck Courchamp⁴

A (satirical) response to the “Warning of scientists to humanity” by Ripple et al., 2017 (here), published in Trends in Ecology and Evolution (here). The French version is here.

 

¹ Grimsö Wildlife Research Station, Swedish University of Agricultural Sciences.

² AgroParisTech, CNRS.

³ Université Paris-Dauphine.

⁴ CNRS, Université Paris-Saclay.

100 papers every students should read

Ever wondered whether you had completely missed some of the most important papers in your discipline? Or whether you just read enough? Well, now you can’t stop wondering, since the answer is right here in this new post. About our latest paper, a paper that recommends to read recommended papers.

In ecology. Yeah, I know, the title doesn’t specify “in ecology”. And it should, since a list of ecology papers is going to be of no interest whatsoever for you guys in astrophysics or neurobiology. Plus, the Sheldon Coopers and Amy Farrah Fowlers among you are now probably going to smirk about our classics. My official excuse is that you should always try to have as short a title as possible, in order to be attractive (after all, we are living in an era of unsalvageable lazy millennials). But the real reason is that I wanted to give my blog a little boost, after months of abstinence, so that was on purpose. But instead of frowning with your judgmental scorn, please consider that I didn’t put sex, GoT or Trump in the title, be merciful, and go forward to all your friends.

Now that you’ve made a healthy re-acquaintance with my annoying habit to not-cut-to-the-chase, I should probably start. After all, rule#1 for a successful blog: short posts (see one of my first entries).

For a few years, I’ve been wondering whether I was missing the important papers, and more worryingly, if my students were. There are now so many papers to read, and so little time to do it, it’s easy to stay confined within a small niche of papers – your area of expertise – and miss the big picture, those papers that made your field, and from which the wise professors probably get part of their wisdom.

So, I have been thinking for quite some time of the best way to come up with such a list. It was not easy, because important papers are a very subjective thing to select, let alone rank. But I came up with a simple solution: ask the wise professors. Or more exactly, ask the 665 experts in the Editorial Board of the highest ranking, generalist journals in ecology, who probably are the best suited to evaluate the worth of papers regardless of their field. After receiving all their nominees, an internet vote and clever statistical analyses by my brilliant co-author and good friend Corey Bradshaw, at the time in sabbatical in my group, we came up with …

(hint: click on the image to get the list – I really must tell you everything…)

This came up with a few surprises, such as the discrepancy between the articles that experts recommend to students and those they have actually read themselves, the fact that the average scientist reads ~40 papers per month (if you thought that maybe you were lazy, now you know for sure), or the huge gender bias in authors of said articles, but, damned, I don’t have any space left (nor you any patience left) to discuss that. I really should learn to focus on the important stuff. Well, this said, for those you interested in the full story, it is now published in Nature Ecology & Evolution. As for the pdfs of those articles, I’m sure they somehow will be found on SciHub…

Ok, remember, you’re supposed to read at least 40 papers per month, so the 100 papers’ list is not going to be a huge additional load in your PhD. So, don’t blame us and go start reading your share. And no, this post doesn’t count as a reading.

 

Oh, and if you find one or several such papers were utterly useless to you, don’t blame me for choosing them, I didn’t. Don’t even blame me for making you read them, I didn’t either…

 

The 100 selected articles:

1. Darwin, C.R.; Wallace, A.R. 1858. On the tendency of species to form varieties; and on the perpetuation of varieties and species by natural means of selection. Zoological Journal of the Linnean Society 3:45-62
2. Hardin, G. 1960. The competitive exclusion principle. Science 131:1292-1297
3. Paine, R.T. 1966. Food Web Complexity and Species Diversity. The American Naturalist 100:65-75

4. Hutchinson, G.E. 1961. The Paradox of the Plankton. The American Naturalist 95:137-145
5. Hutchinson, G.E. 1959. Homage to Santa Rosalia or Why Are There So Many Kinds of Animals? The American Naturalist 93:145
6. MacArthur, R.H.; Wilson, E.O. 1963. An Equilibrium Theory of Insular Zoogeography. Evolution 17:373-387

7. Hutchinson, G.E. 1957. Concluding Remarks. Cold Spring Harbor Symposia on Quantitative Biology 22:415-427
8. Hairston, N.G.; Smith, F.; Slobodkin, L. 1960. Community structure, population control, and competition. The American Naturalist 94:421-425

9. Connell, J.H. 1978. Diversity in tropical rain forests and coral reefs. Science 199:1302-1310
10. Janzen, D.H. 1970. Herbivores and the Number of Tree Species in Tropical Forests. The American Naturalist 104:501
11. May R.M. 1974. Biological populations with non-overlapping generations: stable points, stable cycles, and chaos. Science 186:645-647
12. Gause, G.F. 1934. Experimental Analysis of Vito Volterra’S Mathematical Theory of the Struggle for Existence. Science 79:16-17
13. Chesson, P. 2000. Mechanisms of Maintenance of Species Diversity. Annual Review of Ecology and Systematics 31:343-366

14. Carpenter, S.R.; Kitchell, J.F.; Hodgson, J.R. 1985. Cascading trophic interactions and lake productivity. BioScience 35:634-639
15. Levin, S.A. 1992. The problem of pattern and scale in ecology: the Robert H. MacArthur Award lecture. Ecology 73:1943-1967
16. Hanski, I. 1998. Metapopulation dynamics. Nature 396:41-49
17. MacArthur, R.; Levins, R. 1967. The Limiting Similarity, Convergence, and Divergence of Coexisting Species. The American Naturalist 101:377-385
18. Tilman, D. 1977. Resource Competition Between Plankton Algae: An Experimental and Theoritical Approach. Ecology 58:338-348
19. Hamilton, W.D. 1964a. The genetical evolution of social behaviour. I. Journal of Theoretical Biology 7:42370
20. Charnov, E.L. 1976. Optimal foraging, the marginal value theorem. Theoretical Population Biology 9:129-136
21. Tilman, D. 1996a. Biodiversity: Population versus ecosystem stability. Ecology 77:350-363
22. Rosenzweig, M. 1971. Paradox of enrichment: destabilization of exploitation ecosystems in ecological time. Science 171:385-387
23. Connell, J.H. 1961. The Influence of Interspecific Competition and Other Factors on the Distribution of the Barnacle Chthamalus Stellatus. Ecology 42:710-743
24. MacArthur, R.; Levins, R. 1964. Competition, habitat selection, and character displacement in a patchy environment. Proceedings of the National Academy of Sciences of the United States of America 51:1207-1210
25. Hardin, G.J. 1968. The tragedy of the commons. Science 162:1243-1248
26. Levin, S.A. & Paine, R.T. 1974. Disturbance, patch formation, and community structure. Proceedings of the National Academy of Sciences of the United States of America 71:2744-2747
27. Felsenstein, J. 1981. Skepticism towards Santa Rosalia, or why are there so few kinds of animals? Evolution 35:124-138
28. Tilman, D. 1994a. Competition and biodiversity in spatially structured habitats. Ecology 75:42401
29. Holling, C.S. 1973. Resilience and Stability of Ecological Systems. Annual Review of Ecology and Systematics 4:44927
30. Hurlbert, S.H. 1984. Pseudoreplication and the Design of Ecological Field Experiments. Ecological Monographs 54:187
31. Vitousek, P.M. et al. 1997b. Human Domination of Earth’s Ecosystems. Science 277:494-499
32. May R.M. 1972. Will a large complex system be stable? Nature 238:413-414
33. Pianka, E.R. 1970. On r- and K-selection. American Naturalist 104:592-597
34. Brown, J.H. et al. 2004. Toward a metabolic theory of ecology. Ecology 85:1771-1789
35. Ehrlich, P.R.; Raven, P.H. 1964. Butterflies and plants: a study in coevolution. Evolution 18:586-608
36. MacArthur, R.H.; McArthur, J. 1961. On bird species diversity. Ecology 42:594-598
37. Simberloff, D.S. et al. 1969. Experimental Zoogeography of Islands: The Colonization of Empty Islands. Ecology 50:278-296
38. Grime, J.P. 1977. Evidence for the existence of three primary strategies in plants and its relevance to ecological and evolutionary theory. The American Naturalist 111:1169-1194
39. Brown, J.H. 1984. On the Relationship between Abundance and Distribution of Species. The American Naturalist 124:255
40. Connell, J.H. 1961a. Effects of competition, predation by Thais lapillus, and other factors on natural populations of the barnacle Balanus balanoides. Ecological Monographs 31:61-104
41. Holt, R.D. 1977. Predation, apparent competition, and the structure of prey communities. Theoretical Population Biology 12:197-229
42. Anderson, R.M; May, R.M. 1979. Population biology of infectious diseases: Part I. Nature 280:361-367
43. Huffaker, C.B. 1958. Experimental studies on predation: dispersion factors and predator-prey oscillations. Hilgardia 27:343-383
44. Clements, F.E. 1936. Nature and structure of the climax. Journal of Ecology 24:252-284
45. Pulliam, D.W. 1988. Sources, Sinks, and Population Regulation. The American Naturalist 132:652-661
46. Lawton, J.H. 1999. Are there general laws in ecology? Oikos 84:177-192
47. Lindeman, R.L. 1942. The trophic-dynamic aspect of ecology. Ecology 23:399-418
48. Kimura, M. 1968. Evolutionary Rate at the Molecular Level. Nature 217:624-626
49. May R.M. 1976. Simple mathematical models with very complicated dynamics. Nature 261:459-467
50. Trivers, R.L. 1974 Parent-Offspring Conflict. American Zoologist 14:249-264
51. Paine, R.T. 1980. Food Webs: Linkage, Interaction Strength and Community Infrastructure. Journal of Animal Ecology 49:666-685
52. Tilman, D.; Wedin, D.; Knops, J. 1996. Productivity and sustainability influenced by biodiversity in grassland ecosystems. Nature 379:718-720
53. MacArthur, R.H. 1958. Population ecology of some warblers of northeastern coniferous forests. Ecology 39:599-619
54. May R.M. 1977. Thresholds and breakpoints in ecosystms with a multiplicity of stable states. Nature 260:471-477
55. Simberloff, D. 1976. Experimental Zoogeography of Islands : Effects of Island Size. Ecology 57:629-648
56. Schindler, D.W. 1977. Evolution of phosphorus limitation in lakes. Science 195:260-262
57. Kunin, W.E.; Gaston, K.J. 1993. The biology of rarity: Patterns, causes and consequences. Trends in Ecology & Evolution 8:298-301
58. Vitousek, P. M.; Reiners W.A. 1975. Ecosystem succession and nutrient retention: a hypothesis. BioScience 25:376-381
59. Tilman, D. 1980. Resources: a Graphical-Mechanistic Approach To Competition and Predation. The American Naturalist 116:362-393
60. Lande, R. 1980. Sexual dimorphism, sexual selection, and adaptation in polygenic characters. Evolution 34:292-305
61. Tilman, D. et al. 1994. Habitat destruction and the extinction debt. Nature 371:65-66
62. Fretwell S.D. & Lucas H.L. 1970. On territorial behavior and others factors influencing habitat distribution in birds. I. Theoretical development. Acta Biothereotica 19:16-36
63. May R.M. 1973a. Qualitative stability in model ecosystems. Ecology 54:638-641
64. Redfield, A.C. 1958. The biological control of chemical factors in the environment. American Scientist 46:205-221
65. Tilman, D. et al. 1997. The Influence of Functional Diversity and Composition on Ecosystem Processes. Science 277:1300-1302
66. Hamilton, W.D. 1967. Extraordinary Sex Ratios. Science 156:477-488
67. Schluter, D. & McPhail, J.D. 1992. Ecological character displacement and speciation in sticklebacks. The American Naturalist 140:85-108
68. Hanski, I. 1994. A practical model of metapopulation dynamics. Journal of Animal Ecology. 63:151–162
69. Hamilton, W.D. 1964b. The genetical evolution of social behaviour. II. Journal of Theoretical Biology 7:17-52
70. Likens, G.E. et al. 1970. Effects of Forest Cutting and Herbicide Treatment on Nutrient Budgets in the Hubbard Brook Watershed-Ecosystem. Ecological Monographs 40:23-47
71. Odum, E.P. 1969. The strategy of ecosystem development. Science 164:262-270
72. Hubbell, S.P. 1979. Tree dispersion, abundance, and diversity in a tropical dry forest. Science 203:1299-1309
73. Grinnell, B.Y. 1917. The niche-relationships of the california thrasher. The Auk 34:427-433
74. MacArthur, R.H.; Pianka, E. R. 1966. On optimal use of a patchy environment. American Naturalist 100:603-609
75. Tilman, D.; Forest, I.; Cowles, J.M. 2014. Biodiversity and ecosystem functioning. Annual Review of Ecology, Evolution, and Systematics 45:471-493
76. May, R.M. & MacArthur, R.H. 1972a. Niche overlap as a function of environmental variability. Proceedings of the National Academy of Sciences of the United States of America 69:1109-1113
77. Leibold, M.A. et al. 2004. The metacommunity concept: a framework for multi-scale community ecology. Ecology Letters 7:601-613
78. Axelrod, R.; Hamilton, W. D. 1981. The Evolution of Cooperation. Science 211:1390-1396
79. Gleason, H.A. 1926. The Individualistic Concept of the Plant Association. Bulletin of the Torrey Botanical Club 53:46204
80. Grime, J.P. 1998. Benefits of plant diversity to ecosystems: immediate, filter and founder effects. Journal of Ecology 86:902-910
81. Gould S.J.; Lewontin R.C. 1979. The spandrels of San Marco and the Panglossian paradigm: a critique of the adaptionist programme. Proceedings of the Royal Society B: Biological Sciences 205:581-5981017
82. Grant, P.R; Grant, B.R. 1995. The Founding of a New Population of Darwin’s Finches. Evolution 49:229-240
83. Stearns, S.C. 1976. Life-history tactics: a review of the ideas. The Quarterly Review of Biology 51:3
84. Vitousek, P.M. 1994. Beyond global warming: ecology and global change. Ecology 75:1861-1876
85. Janzen D.H. 1967. Why mountain passes are higher in the tropics. The American Naturalist 101:233
86. Carpenter, S.R. et al. 1987. Regulation of lake primary productivity by food web structure. Ecology 68:1863-1876
87. Stenseth, N.C. 1997. Population regulation in snowshoe hare and Canadian lynx: asymmetric food web configurations between hare and lynx. Proceedings of the National Academy of Sciences of the United States of America 94:5147-5152
88. Anderson, R.M; May, R.M. 1978. Regulation and Stability of Host-Parasite Population Interactions. Journal of Animal Ecology 47:219-247
89. Krebs, C.J. et al. 1995. Impact of Food and Predation on the Snowshoe Hare Cycle. Science 269:1112-1115
90. Ginzburg, L.R.; Jensen, C.X.J. 2004. Rules of thumb for judging ecological theories. Trends in Ecology and Evolution 19:121-126
91. Chave,J. 2013. The problem of pattern and scale in ecology: what have we learned in 20 years? Ecology Letters 16:42461
92. MacArthur, R. 1955. Fluctuations of Animal Populations and a Measure of Community Stability. Ecology 36:533
93. Ricklefs, R.E. 1987. Community diversity: relative roles of local and regional processes. Science 235:167-171
94. Levins, R. 1966. The strategy of model building in population biology. American Scientist 54:421-431
95. Anderson, R.M; May, R.M. 1981. The Population Dynamics of Microparasites and Their Invertebrate Hosts. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 291:451-524.
96. Brown, W.L.; Wilson, E.O. 1986. Character displacement. Systematic Zoology 5:49-64
97. Lande, R. 1993. Risks of Population Extinction from Demographic and Environmental Stochasticity and Random Catastrophes. The American Naturalist 142:911-927
98. May R.M. & Anderson, R.M. 1979. Population biology of infectious diseases: Part II. Nature 280:455-461
99. Parmesan, C.; Yohe, G. 2003. A globally coherent fingerprint of climate change impacts across natural systems. Nature 421:37-42
100. Power, M.E. 1990. Effects of fish in river food webs. Science 250:811-81

 

 

PS: if you want the pdf of the 545 nominated articles – including the 100 – you may find them here.

 

 

For God’s sake!

Since biblical times, I’ve thought that one of the only things that perhaps could tip the balance in favor of the environment would be to have religious people on our side. When you think of it, they are numerous, they are organized and when they have divine directive, they take it rather seriously.

It seems that God, in Its great wisdom, has led the first men to believe that Nature was theirs to do whatever they wanted with, and that the only role of animals on Earth was to be at the disposal of Men, and that Men had to fight and win over Nature and this type of bullshit. Or so they wrote in the Bible. No wonder then that Christians don’t give a damn about the environment. Or at least, not enough to matter.

I don’t know enough of the other mainstream religions, but I doubt they also preach biodiversity and ecosystem conservation as one of their main messages (anyways, I’m not an expert but I reckon the main message of all three major religions is « don’t kill your neighbor » and their followers still seem to be struggling with it, so never mind the « don’t mess up your planet »).

And there I was thinking all this, quite pessimistically, and it seems God heard me and thought « Oh Franck, you may be a bit megalomaniac, but you gave Me a good idea, I’ll talk to some of My representatives ». Because next thing I knew, Pope Francis spoke (and wrote) a very clear and very explicit message about protecting biodiversity, mitigating climate change, and stuff in his Encyclal Letter: Laudato Si’. You can find it here. As explained in a nice analysis here, this makes him a powerful ally for conservation. And God knows we need all the allies we can find.

Its seems that the Dalai Lama also said things that go in this direction (but he also said some very sexist things recently, so he’s not my best buddy anymore; yet, Buddhists should listen to that environment thing), which means that we can expect some other major leaders of some other major religions to express themselves on the same lines, since God just asked them (or reminded them, because, hey, if God wanted to kill the planet, He’d just order a downpour and be done with it). And I’m pretty sure God doesn’t want us to mess up with His creation, even if He spent only 7 days doing it and has been a couch potato ever since. .

So now, if you ever were in doubt about how to spend your zealous energy, making converts, making money, or protecting biodiversity, now you know. God wants you to protect biodiversity. And so do I. He’s on my side. You don’t stand a chance. Obey and pray that our divine wrath is curtate and our clemency all-encompassing.

An Open Letter to Environmentalists

Nuclear power recommended by environmental scientists? Probably sounds like a bomb, but read this.

As conservation scientists concerned with global depletion of biodiversity and the degradation of the human life-support system this entails, we, the co-signed, support the broad conclusions drawn in the article Key role for nuclear energy in global biodiversity conservation published in Conservation Biology (Brook & Bradshaw 2014).

Brook and Bradshaw argue that the full gamut of electricity-generation sources—including nuclear power—must be deployed to replace the burning of fossil fuels, if we are to have any chance of mitigating severe climate change. They provide strong evidence for the need to accept a substantial role for advanced nuclear power systems with complete fuel recycling—as part of a range of sustainable energy technologies that also includes appropriate use of renewables, energy storage and energy efficiency. This multi-pronged strategy for sustainable energy could also be more cost-effective and spare more land for biodiversity, as well as reduce non-carbon pollution (aerosols, heavy metals).

Given the historical antagonism towards nuclear energy amongst the environmental community, we accept that this stands as a controversial position. However, much as leading climate scientists have recently advocated the development of safe, next-generation nuclear energy systems to combat global climate change (Caldeira et al. 2013), we entreat the conservation and environmental community to weigh up the pros and cons of different energy sources using objective evidence and pragmatic trade-offs, rather than simply relying on idealistic perceptions of what is ‘green’.

Although renewable energy sources like wind and solar will likely make increasing contributions to future energy production, these technology options face real-world problems of scalability, cost, material and land use, meaning that it is too risky to rely on them as the only alternatives to fossil fuels. Nuclear power—being by far the most compact and energy-dense of sources—could also make a major, and perhaps leading, contribution. As scientists, we declare that an evidence-based approach to future energy production is an essential component of securing biodiversity’s future and cannot be ignored. It is time that conservationists make their voices heard in this policy arena.

The list of signatories can be found here and here. Now, please, do read the article of Brook & Bradshaw before getting emotional and all. Now I’m waiting for the fallout…

 

Bleak future

As my growing age is inexorably bringing me closer to my death, I think increasingly often about my youth. My joyful youth; and how much better life was than it is now. I also think with sorrow about the people who live now, in such an impoverished world. Think of it: when I was young, the world was so green, and blue, and colourful, and full with odours and insect noises and bird songs. The world was so alive!

There were still at this time enormous beasts roaming wild savannahs and dense forests: bears, lions, tigers, rhinos, elephants, giraffes, bison, gorillas! Imagine! The oceans were full with life, gigantic whales, agile dolphins and terrifying sharks. Orcas, rorquals, narwhals, porpoise, giant turtles, and probably many other species that when extinct before we even discovered them.

When I was young, the air was a delight to breath, with no odours, or only sweet and fragrant ones. No breather needed, even when exhausted or sick, which we rarely were. Not only the air was pure and fresh, the water too. And it was plentiful, and free for all! When I was young, we had so much water and so little regard for it that we took pleasure from soaking in it, for no other purpose than just being immersed. People used so much water. They played in articifial, gigantic pools, they watered their lawn, they washed the pavements of their cities! Everyday! Kids now don’t believe me. That would make us nauseous nowadays.

I am talking of a time before the Water Wars. Before the Climate Diasporas, before the Great Hungers and the ramping diseases that devastated humanity. I am talking of a time before the Eco-Laws, those authoritarian regulations that send to legal death anyone that kills a plant, waste water or do anything against the dying environment, things that your fathers did so plentifully, so shamelessly and so stupidly.

I am talking about a time when there was still time to care, but nobody cared, or so few. When greed moved half and apathy paralyzed the other half, and all went doomed without realising, without listening to the alarm cries, killing the last large beasts and giant trees for profit, even when they knew they were condemning their children. I am talking about a time that was happy nonetheless. Especially compared to now.