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PERSPECTIVE article

Front. Conserv. Sci., 03 February 2022
Sec. Global Biodiversity Threats

The Humpty Dumpty Effect on Planet Earth

  • 1FWC-Biology, Colorado State University, Fort Collins, CO, United States
  • 2Wildlife Conservation Society, New York, NY, United States
  • 3Program in Environmental Studies, Department of Ecology and Evolutionary Biology, University of Colorado, Boulder, CO, United States

Humans have treated the earth harshly. Degradation of extant ecosystems leaves little chance that they might function as they have in the past. Putting back the pieces and restoring what once existed is no longer possible even with re-wildling—an effect analogous to the Humpty Dumpty parable. However, we do have conservation successes after concerted efforts related to habitat protection, species and ecosystem restoration, and planning. While the changes to Earth's biosphere are grave, necessitating immediate and exhaustive action, our Humpty Dumpty world reassembles with progressive conservation victories at all regional scales from local to global which should lead to a modicum of optimism rather than despair. We suggest that to be truly effective our work as academic scientists must be more than publishing in scholarly journals. At the least, this should include changes in how success is measured in science and how university tenure is awarded.

Introduction

Many know the sad fate of Humpty Dumpty. He sat on a wall and had a great fall. Depicted as a fragile egg, the nineteenth century British allegory unfolds a story in which all the kings' horses and all the kings' men could not put Humtpy back together again. We suggest that an Anthropocene version of this parable is our fragile biosphere.

We all know that human-induced disassembly of biodiversity and restructuring of ecological relationships have resulted in fundamental planetary changes. While Earth will always be the sum of its ecological processes, these processes differ from those existing even a decade ago. Just as Humpty could not be reconstituted into his pre-fall form, we are not likely to reconfigure biotic assemblages into their previous forms, despite rewilding and restoration efforts (Navarro and Pereira, 2015; Noss, 2020). Most places are just changed. We argue, however, that we do not have the luxury to lament this Humpty Dumpty Effect (Figure 1). We need to acknowledge it and use it to galvanize our tactics, not cripple us with a yearning for the past.

FIGURE 1
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Figure 1. Schematic of our Humpty Dumpty Earth. Left, a past period; center, a fractured twenty-second century Earth on a cracked foundation; right, reassembled Earth accompanied by uncertainty.

We both bristled when Chris Thomas's provocative and beautifully written “Inheritors of the Earth: How Nature Is Thriving in an Age of Extinction” appeared in 2017. Neither of us was prepared to become resigned to a new version of Earth. We did not accept the premise that we need to mourn and carry on. But we must. Yesterday's world is not today's nor tomorrow's.

With this in mind, we recently published a paper on food web disassembly that contextualizes how unabated human population growth is a central, though not the sole, ecological disruptor of most large mammal communities (Berger et al., 2020). Our central thesis was that the world is messy, that the pieces cannot be put back together, and that ecological transitions in the form of regime shifts, thresholds, and tipping points (Holling, 1973, 1986; Berlow et al., 2012) are expanding globally. A major take home point of this paper was steeped in the reality of accepting biological change, a topic central in Inheritors of the Earth (Thomas, 2017). Our paper rings with words of grave acceptance, though acceptance need not be passive nor contraindicate optimism.

We remain sanguine because of success stories that provide precedents for ways forward. These successes understandably vary, ranging from local to global and of broad thematic significance to small local victory. For instance, in addition to the vast protected areas with ecosystems functioning much in the way of the past—albeit situated in high-latitude regions with low human density (e.g., Tibet's Chang Tang, Northeast Greenland National Park, Alaska's Wrangell-St. Elias, and Russia's Arctic National Park)—governments and non-governmental organizations have also invested in protected areas at lower latitudes (e.g., Serengeti, Madidi, and Yellowstone National Parks; Kennedy et al., 2019).

Examples of other successes across the globe are presented in Table 1. Rewilding via species reintroduction has proven a particularly valuable tool at broad landscape levels. The reintroduction of gray wolves (Canis lupus) into the northern Rocky Mountains of Wyoming and Idaho re-established prey fear responses and former trophic interactions (Estes et al., 2012). Other examples of highly successful reintroductions include water buffalo (Bubalus bubalis) back into the Danube River Delta, Ukraine, red kite (Milvus milvus) into Britain, and bandicoot (Isoodon obesulus) and bilby (Macrotis lagotis) into Australia (Moseby and O'donnell, 2003; Cogălniceanu, 2012; Legge et al., 2018). Lesser-known successes have been removal of railroad fencing and creation of over- and underpasses—human actions that have reinstated migratory pathways. In Mongolia's Gobi Desert, for example, khulan (Equus hemionus), now pass on both sides of a modified railroad impediment for the first time in six decades (News Wise, 2020).

TABLE 1
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Table 1. Exemplars of conservation success at species or ecological process levels on each of continents.

We write in full cognizance of the biodiversity extinction crisis and that we are losing more species than we are recovering (Nicholson and Possingham, 2007; Kolbert, 2014). Indeed, under our current circumstances of limiting funding and resources, a tactic of conservation triage prevails (Hayward and Castley, 2018). Yet, triumphs do still occur and do so because of individual choices and institutional action—both of which are the result of labile sociocultural-political processes that can change within a generation. Scientific advances, such as those offered by the nascent but growing field of synthetic biology, can bolster such changes (Redford and Adams, 2021). Other sources of cautious optimism include more efficient urban planning, the leveraging of high-resolution geospatial data to address agricultural demands, greater opportunities for reproductive choice by women, and a decrease in the intrinsic rate of human population growth globally (Sanderson et al., 2018; Vollset et al., 2020; ACF, 2021). Calls to action, especially when voiced across generations, gender, and ethnicity solidifies support and can result in change. To wit: the civil unrest related to environmental (in)justice garnered by Greta Thunberg (Rodrick, 2020).

We believe emphatically that as academic scientists we cannot limit ourselves to the currency of our trade: peer-reviewed publications. Essays or perspectives do not accomplish conservation, nor do they typically reach the public (Strother and Fazal, 2011; Morrison et al., 2018). We must work where we can to influence decision-makers and to implement sociocultural change related to environmental policy. This involves non-academic pursuits such as working with agencies and policymakers, writing opinion editorials, working toward gender equity, engaging in complicated conversations with multiple stakeholders, and acknowledging iterative, structural racism that has profound impacts for environmental justice. Such actions are requisite to enact broad conservation changes (Wittemyer et al., 2018). Though work beyond academia (e.g., outreach, advocacy) is often not rewarded at institutions of higher education, standards are readily changed by re-writing the requirements for tenure.

In the end, we can't look backwards. Ecological restoration and rewilding will not bring us back to what Earth once was, even in the recent past (Thomas, 2017; Berger, 2018; Berger et al., 2020). But new versions will coalesce and while we may not gain identical species assemblages, we can work toward comparable ecological function (Chazdon, 2014). Working at all scales, we too can invest in where, when and how we try to impact a world we'd like to see.

Data Availability Statement

The original contributions presented in the study are included in the article/supplementary material, further inquiries can be directed to the corresponding author/s.

Author Contributions

All authors listed have made a substantial, direct, and intellectual contribution to the work and approved it for publication.

Funding

This study was funded by Colorado State University, the Wildlife Conversation Society, and the University of Colorado.

Conflict of Interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Publisher's Note

All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.

References

ABC Birds (2016). In Latin America, It Takes a Village to Save Rare Hummingbirds. Available online at: https://abcbirds.org/it-takes-a-village-to-save-rare-hummingbirds/ (accessed September 20, 2016).

Google Scholar

ACF (2021). Agricultural Conservation Planning Framework. Available online at: https://acpf4watersheds.org (accessed July, 2020).

Google Scholar

Anonymous (2008). Conservation Success Story: Birds Stage Dramatic Recovery in Cambodia. Available online at: https://news.mongabay.com/2008/04/conservation-success-story-birds-stage-dramatic-recovery-in-cambodia/ (accessed April, 2008).

Google Scholar

Berger, J.. (2018). Extreme Conservation: Life at the Edges of the World. Chicago, IL: University of Chicago Press. doi: 10.7208/chicago/9780226366432.001.0001

CrossRef Full Text | Google Scholar

Berger, J., Wangchuk, T., Briceno, C., Vila, A., and Lambert, J. E. (2020). Disassembled food webs and messy projections: modern ungulate communities in the face of unabating human population growth. Front. Ecol. Evol. 8,1–23. doi: 10.3389/fevo.2020.00128

CrossRef Full Text | Google Scholar

Berger, J., and Wehausen, J. (1991). Consequences of a mammalian predator-prey disequilibrium in the Great Basin Desert. Conserv. Biol. 5, 243–248. doi: 10.1111/j.1523-1739.1991.tb00129.x

CrossRef Full Text | Google Scholar

Berlow, E. L., Brown, J. H., Fortelius, M., Getz, W. M., Harte, J., Hastings, A., et al. (2012). Approaching a state shift in Earth's biosphere. Nature 486, 52–58. doi: 10.1038/nature11018

PubMed Abstract | CrossRef Full Text | Google Scholar

Birdlife (2017). Liten to the Birds. Available online at: https://www.birdlife.org/flamingo-factory-natron (accessed August, 2017).

Google Scholar

Chazdon, R. L.. (2014). Second Growth: The Promise of Tropical Forest Regeneration in an Age of Deforestation. Chicago, IL: University of Chicago Press. doi: 10.7208/chicago/9780226118109.001.0001

CrossRef Full Text | Google Scholar

Cogălniceanu, D.. (2012). “Black Sea environmental status improvement through the restoration of wetlands along the Danube River,” in Environmental Security in Watersheds: The Sea of Azov. NATO Science for Peace and Security Series C: Environmental Security, ed V. Lagutov (Dordrecht: Springer). doi: 10.1007/978-94-007-2460-0_6

CrossRef Full Text | Google Scholar

Estes, J. A., Terborgh, J., Brashares, J. S., Power, M. E., Berger, J., Bond, W. J., et al. (2012). Trophic downgrading of planet Earth. Science 333, 301–306. doi: 10.1126/science.1205106

PubMed Abstract | CrossRef Full Text | Google Scholar

Gelin, M. L., Branch, L. C., Thornton, D. H., Novaro, A. J., Gould, M. J., and Caragiulo, A. (2017). Response of pumas (Puma concolor) to migration of their primary prey in Patagonia. PLoS ONE 12:e0188877. doi: 10.1371/journal.pone.0188877

PubMed Abstract | CrossRef Full Text | Google Scholar

Guardian (2019). Bilbies Returned to National Park in South-West NSW After 100-Year Absence. Available online at: https://www.theguardian.com/environment/2019/oct/06/bilbies-returned-to-national-park-in-south-west-nsw-after-100-year-absence (accessed October, 2019).

Google Scholar

Hayward, M. W., and Castley, J. G. (2018). Triage in conservation. Front. Ecol. Evol. 5:168. doi: 10.3389/fevo.2017.00168

CrossRef Full Text | Google Scholar

Holling, C. S.. (1973). Resilience and stability of ecological systems. Ann. Rev. Ecol. Systemat. 4, 1–23. doi: 10.1146/annurev.es.04.110173.000245

CrossRef Full Text | Google Scholar

Holling, C. S.. (1986). The resilience of terrestrial ecosystems: local surprise and global change. Sustain. Dev. Biosphere 14, 292–317.

Google Scholar

Kennedy, C. M., Oakleaf, J. R., Theobald, D. M., Baruch-Mordo, S., and Kiesecker, J. (2019). Managing the middle: a shift in conservation priorities based on the global human modification gradient. Glob. Change Biol. 25, 811–826. doi: 10.1111/gcb.14549

PubMed Abstract | CrossRef Full Text | Google Scholar

Kimbrough, L.. (2020). Animal Crossing: A Wild as Makes History. Available online at: https://news.mongabay.com/2020/06/animal-crossing-a-wild-ass-makes-history/ (accessed June, 2020).

Google Scholar

Kolbert, E.. (2014). The Sixth Extinction an Unnatural History. A&C Black.

Google Scholar

Legge, S, Lindenmayer, D. B., Robinson, N. M., Scheel, B. C., Southwell, D. M., and Wintle, B. C. (2018). Monitoring Threatened Species and Ecological Communities. Canberra, ACT: CSIRO Publishing. doi: 10.1071/9781486307722

PubMed Abstract | CrossRef Full Text | Google Scholar

Maekawa, M., Lanjouw, A., Rutagarama, E., and Sharp, D. (2013). Mountain gorilla tourism generating wealth and peace in post-conflict Rwanda. Nat. Resour. For. 37, 127-137. doi: 10.1111/1477-8947.12020

CrossRef Full Text | Google Scholar

Mara (2019). Maraconservancies. Available online at: https://www.maraconservancies.org (accessed September, 2020).

Google Scholar

Morrison, M., Parton, K., and Hine, D. W. (2018). Increasing belief but issue fatigue: changes in Australian household climate change segments between 2011 and 2016. PLoS ONE 13:e0197988. doi: 10.1371/journal.pone.0197988

PubMed Abstract | CrossRef Full Text | Google Scholar

Moseby, K. E., and O'donnell, E. (2003). Reintroduction of the greater bilby, Macrotis lagotis (Reid; Marsupialia: Thylacomyidae), to northern South Australia: survival, ecology and notes on reintroduction protocols. Wildlife Res. 30, 15–27. doi: 10.1071/WR02012

PubMed Abstract | CrossRef Full Text | Google Scholar

Navarro, L. M., and Pereira, H. M. (2015). Rewilding Abandoned Landscapes in Europe. In Rewilding European Landscapes. Cham; Heidelberg: Springer. doi: 10.1007/978-3-319-12039-3_1

CrossRef Full Text | Google Scholar

News Wise (2020). After 65 Years, a Desert Nomad Crosses A Railroad Track and Makes History. Available online at: https://www.newswise.com/articles/after-65-years-a-desert-nomad-crosses-a-railroad-track-and-makes-history?ta=home (accessed June, 2020).

Google Scholar

Nguyen, A., Tran, V. B., Hoang, D. M., et al. (2019). Camera-trap evidence that the silver-backed chevrotain Tragulus versicolor remains in the wild in Vietnam. Nat. Ecol. Evol. 3, 1650–1654. doi: 10.1038/s41559-019-1027-7

PubMed Abstract | CrossRef Full Text | Google Scholar

Nicholson, E., and Possingham, H. P. (2007). Making conservation decisions under uncertainty for the persistence of multiple species. Ecol. Appl. 17, 251–265. doi: 10.1890/1051-0761(2007)017[0251:MCDUUF]2.0.CO;2

PubMed Abstract | CrossRef Full Text | Google Scholar

Noss, R. F.. (2020). The Spectrum of Wildness and Rewilding: Justice for All. In Conservation. (Cham Heidelberg; Springer), 167–182. doi: 10.1007/978-3-030-13905-6_12

CrossRef Full Text | Google Scholar

Redford, K. H., and Adams, W. M. (2021). Strange Natures: Conservation in the Era of Synthetic Biology. Yale University Press.

Google Scholar

Ripple, W. J., and Beschta, R. L. (2012). Trophic cascades in Yellowstone: the first 15 years after wolf reintroduction. Biol. Conserv. 145, 205–213. doi: 10.1016/j.biocon.2011.11.005

CrossRef Full Text | Google Scholar

Robbins, M. M., Gray, M., Fawcett, K. A., Nutter, F. B., Uwingeli, P., Mburanumwe, I., and Byamukama, J. (2011). Extreme conservation leads to recovery of the Virunga mountain gorillas. PloS ONE 6:e19788. doi: 10.1371/journal.pone.0019788

PubMed Abstract | CrossRef Full Text | Google Scholar

Rodrick, S.. (2020). Greta's World. Rolling Stone. Available online at: https://www.rollingstone.com/politics/politics-features/greta-thunberg-climate-crisis-cover-965949/ (accessed June 26, 2020).

Google Scholar

Rodríguez, A., and Calzada, J. (2015). “Lynx pardinus”. IUCN Red List of Threatened Species. 2015: e.T12520A50655794. Retrieved 29 October 2018. doi: 10.7325/Galemys.2017.A2

CrossRef Full Text | Google Scholar

Royal Society (2020). Distribution and Population Size. Available online at: https://www.rspb.org.uk/birds-and-wildlife/wildlife-guides/bird-a-z/red-kite/distribution-and-population-size/ (accessed June 25, 2020).

Google Scholar

Sanderson, E. W., Walston, J., and Robinson, J. G. (2018). From bottleneck to breakthrough: urbanization and the future of biodiversity conservation. BioScience 68, 1–15. doi: 10.1093/biosci/biy039

PubMed Abstract | CrossRef Full Text | Google Scholar

Sithirith, M.. (2015). The governance of wetlands in the Tonle Sap Lake, Cambodia. J. Environ. Sci. Eng. B 4, 331–346. doi: 10.17265/2162-5263/2015.06.004

CrossRef Full Text | Google Scholar

Strother, J. B., and Fazal, Z. (2011). “Can green fatigue hamper sustainability communication efforts?” in 2011 IEEE International Professional Communication Conference. Cincinnati, OH, 1–6. doi: 10.1109/IPCC.2011.6087206

PubMed Abstract | CrossRef Full Text | Google Scholar

Sullivan, K., Sieg, R., and Parish, C. H. R. I. S. (2007). Arizona's efforts to reduce lead exposure in California Condors. California condors in the 21st century. Series Ornithol. 2, 100–122. doi: 10.1371/journal.pone.0004022

PubMed Abstract | CrossRef Full Text | Google Scholar

Thomas, C. D.. (2017). Inheritors of the Earth: How Nature Is Thriving in an Age of Extinction. Paris: Hachette UK.

Google Scholar

Tompkins (2019). Tompkinsconservation. Available online at: http://www.tompkinsconservation.org/news/ (accessed June 26, 2020).

Google Scholar

Travaini, A., Zapata, S. C., and Bustamante, J. (2015). Guanaco abundance and monitoring in Southern Patagonia: distance sampling reveals substantially greater numbers than previously reported. Zool. Stud. 54:23. doi: 10.1186/s40555-014-0097-0

PubMed Abstract | CrossRef Full Text | Google Scholar

Veldhuis, M. P., Ritchie, M. E., Ogutu, J. O., Morrison, T. A., Beale, C. M., Estes, A. B., et al. (2019). Cross-boundary human impacts compromise the Serengeti-Mara ecosystem. Science 363, 1424–1428. doi: 10.1126/science.aav0564

PubMed Abstract | CrossRef Full Text | Google Scholar

Vollset, S. E., Goren, E., Yuan, C.-W., Cao, J., Smith, A.E., Hsiao, T., et al. (2020). Fertility, mortality, migration, and population scenarios for 195 countries and territories from 2017 to 2100: a forecasting analysis for the Global Burden of Disease Study. Lancet 2020:2. doi: 10.1016/S0140-6736(20)30677-2

PubMed Abstract | CrossRef Full Text | Google Scholar

Wittemyer, G., Berger, J., Crooks, K. R., Noon, B. R., Pejchar, L., Reed, S. E., et al. (2018). To advocate or not is no longer the question: paths to enhance scientific engagement. Bioscience 68:13. doi: 10.1093/biosci/bix134

CrossRef Full Text | Google Scholar

Keywords: ecology, conservation success, conservation failure, earth, biodiversity, ecological grief, Anthropocene

Citation: Berger J and Lambert JE (2022) The Humpty Dumpty Effect on Planet Earth. Front. Conserv. Sci. 3:783138. doi: 10.3389/fcosc.2022.783138

Received: 25 September 2021; Accepted: 10 January 2022;
Published: 03 February 2022.

Edited by:

Sean Richard Connolly, Smithsonian Tropical Research Institute, Panama

Reviewed by:

Sacha Jellinek, University of Melbourne, Australia
Andy Chan, University of Nottingham, United Kingdom

Copyright © 2022 Berger and Lambert. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Joel Berger, jberger@wcs.org

Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.