This article advances geographic scholarship about conservation and protected areas (PAs) through a focuson biocultural geographies. Biocultural geographies derive from relationships between heterogenousIndigenous stewardship practices, biological diversity, and trans-scalar multidimensional social, political, andecological processes. The concept brings together insights from political ecology and biocultural conservationto address the interplay between environmental governance, cultural change, and biodiversity. We drawfrom collaborative, transdisciplinary research with Siona, Siekopai, and Cofan Indigenous communities inthe northern Ecuadorian Amazon, a site of global importance for its biodiversity and cultural heritage. Thisis also a region of rapid and extensive social-ecological change driven by expanding agricultural frontiers,intensifying extractive industries, and new infrastructure development for regional integration. It is from thiscontext that we call for a timely and critical conversation between human–environment geographers and thefield of biocultural conservation, two approaches that have reshaped thinking about PAs and the role ofIndigenous stewardship in an era of accelerating global challenges to social-ecological well-being. Data forour analysis derive from a multiyear study that investigates strategies used to ensure social-ecological well-being in the face of change. Our findings show that Siona, Siekopai, and Cofan stewardship sustains thebiological diversity that characterizes many Amazonian PAs through locally adapted institutions based onknowledge, innovation, and practices they collectively hold. Such stewardship advances self-determinationthat challenges conventional conservation and PA models by centering Indigenous territorial governance.
more »
« less
This content will become publicly available on February 20, 2026
A biocultural hypothesis of human–environment mediations and biodiversity increase
Summary The relationship between ecosystem disturbance and biodiversity levels has been a central focus of ecological research for the past half-century. The intermediate disturbance hypothesis, which suggests that maximum biodiversity is achieved through the coexistence of early and late successional species, however, has been challenged for its lack of clarity regarding the intensity, duration and extent of disturbances. This Perspective article advocates for a broader biocultural framework to move from the notion of disturbance to an understanding of human–environment mediations. Our proposed biocultural hypothesis acknowledges that, in certain cultural contexts, interventions byHomo sapiensat different environmental scales – mainly at the landscape level – can generate peaks in beta and gamma biodiversity compared to reference ecosystems. We illustrate these human–environment mediations through studies conducted in the biocultural region of Mesoamerica and comparative research findings, particularly from the Amazon Basin and West and Central Africa. In our conclusions, we discuss the need to establish collaborative research programmes around the proposed biocultural hypothesis, addressing management and institutional actions that will strengthen the engagement of Indigenous people and rural local communities with their historical territories that we name ‘Priority Biocultural Areas’.
more »
« less
- Award ID(s):
- 2024213
- PAR ID:
- 10597900
- Publisher / Repository:
- Environmental Conservation
- Date Published:
- Journal Name:
- Environmental Conservation
- ISSN:
- 0376-8929
- Page Range / eLocation ID:
- 1 to 7
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
Abstract Understanding how tropical forests respond to abiotic environmental changes is critical for preserving biodiversity, mitigating climate change, and maintaining ecosystem services in the coming century. To evaluate the relative roles of the abiotic environment and human disturbance on Central African tree community composition, we employ tree inventory data, remotely sensed climatic data, and soil nutrient data collected from 30 1‐ha plots distributed across a large‐scale observational experiment in forests that had been differently impacted by logging and hunting in northern Republic of Congo. We show that the composition of Afrotropical plant communities at this scale responds to human disturbance more than to climate, with particular sensitivities to hunting and distance to the nearest village (a proxy for other human activities, including tree‐cutting and gathering). These findings contrast neotropical predictions, highlighting the unique ecological, evolutionary, and anthropogenic history of Afrotropical forests.more » « less
-
Abstract Remote coral reefs are thought to be more resilient to climate change due to their isolation from local stressors like fishing and pollution. We tested this hypothesis by measuring the relationship between local human influence and coral community resilience. Surprisingly, we found no relationship between human influence and resistance to disturbance and some evidence that areas with greater human development may recover from disturbance faster than their more isolated counterparts. Our results suggest remote coral reefs are imperiled by climate change, like so many other geographically isolated ecosystems, and are unlikely to serve as effective biodiversity arks. Only drastic and rapid cuts in greenhouse gas emissions will ensure coral survival. Our results also indicate that some reefs close to large human populations were relatively resilient. Focusing research and conservation resources on these more accessible locations has the potential to provide new insights and maximize conservation outcomes.more » « less
-
Abstract Understanding how terrestrial biotic communities have responded to glacial recession since the Last Glacial Maximum (LGM) can inform present and future responses of biota to climate change. In Antarctica, the Transantarctic Mountains (TAM) have experienced massive environmental changes associated with glacial retreat since the LGM, yet we have few clues as to how its soil invertebrate‐dominated animal communities have responded. Here, we surveyed soil invertebrate fauna from above and below proposed LGM elevations along transects located at 12 features across the Shackleton Glacier region. Our transects captured gradients of surface ages possibly up to 4.5 million years and the soils have been free from human disturbance for their entire history. Our data support the hypothesis that soils exposed during the LGM are now less suitable habitats for invertebrates than those that have been exposed by deglaciation following the LGM. Our results show that faunal abundance, community composition, and diversity were all strongly affected by climate‐driven changes since the LGM. Soils more recently exposed by the glacial recession (as indicated by distances from present ice surfaces) had higher faunal abundances and species richness than older exposed soils. Higher abundances of the dominant nematodeScottnemawere found in older exposed soils, whileEudorylaimus,Plectus, tardigrades, and rotifers preferentially occurred in more recently exposed soils. Approximately 30% of the soils from which invertebrates could be extracted had onlyScottnema, and these single‐taxon communities occurred more frequently in soils exposed for longer periods of time. Our structural equation modeling of abiotic drivers highlighted soil salinity as a key mediator ofScottnemaresponses to soil exposure age. These changes in soil habitat suitability and biotic communities since the LGM indicate that Antarctic terrestrial biodiversity throughout the TAM will be highly altered by climate warming.more » « less
-
Abstract Human disturbances alter the functioning and biodiversity of many ecosystems. These ecosystems may return to their pre‐disturbance state after disturbance ceases; however, humans have altered the environment in ways that may change the rate or direction of this recovery. For example, human activities have increased supplies of biologically limiting nutrients, such as nitrogen (N) and phosphorus (P), which can reduce grassland diversity and increase productivity. We tracked the recovery of a grassland for two decades following an intensive agricultural disturbance under ambient and elevated nutrient conditions. Productivity returned to pre‐disturbance levels quickly under ambient nutrient conditions, but nutrient addition slowed this recovery. In contrast, the effects of disturbance on diversity remained hidden for 15 years, at which point diversity began to increase in unfertilised plots. This work demonstrates that enrichment of terrestrial ecosystems by humans may alter the recovery of ecosystems and that disturbance effects may remain hidden for many years.more » « less
An official website of the United States government
