A recent study by the Nature Conservation Foundation, in collaboration with owners and managers of agroforests in Hassan and Chikkamagaluru districts, demonstrates the potential of coffee agrosystems as refuge for biodiversity.

A restoration nursery in the Western Ghats, India. | Photo Credit: Vijay Kumar

In 2019, when the Narmada Estate, a coffee plantation in Karnataka’s Chikkamagaluru district, decided to go organic, it began diversifying the coffee-cropping system to reduce pests. “The reason something becomes a pest is because you have too much of the same thing,” explains Sohan Shetty, the estate’s general manager. “So, we needed to plant as many trees as possible.”

Shade coffee agroforests and pockets of remnant natural forest form a dense and continuous tree canopy in the Chikmagalur region of the Western Ghats, India. | Photo Credit: Anand Osuri

To find suitable plants to grow alongside organic coffee, he began scouting for the best-priced plant sources, including the Karnataka Forest Department’s nurseries and seed suppliers in Chikkaballapur. During his search, Shetty discovered that the Nature Conservation Foundation (NCF) had been actively restoring rainforests in Valparai, Tamil Nadu, for years, and so he reached out to them. “They were amazed at the scale with which I was thinking of starting nurseries and asked me what species I was working on.” So he shared with them the list of trees and seeds available with both the Forest Department and the seed supplier. “The botanist looked at it and said, a week later, that only three of these species are native to the Western Ghats,” he says. “That shook me. I realised that we are just planting trees for the sake of planting trees, but we are completely messing up the ecosystem.”

Shade trees in coffee agroforests can comprise a variety of species that are native to forests of the region. The species with fresh red leaves at the center of the image is Canarium strictum, which produces fleshy fruits that attract birds and a resin that is culturally and economically important. | Photo Credit: Vijay Karthick

In search of a better solution, he soon found himself visiting a nursery run by NCF on land allocated by the Kadamane Estates Company in Sakleshpur taluk, Hassan district, which had been set up in 2022. “It was quite impressive, 5000-odd plants of different varieties,” remembers Shetty, who, on seeing this, thought it would be a good idea to further collaborate with NCF. “By that time, I had set up a nursery with 1.2 lakh bags, which could accommodate that many saplings,” he says. “So, I told them that I was happy to grow plants for you. That is how the whole partnership began,” recalls Shetty, who, along with other owners and managers of agroforests in Hassan and Chikkamagaluru districts, was part of a study spearheaded by conservation scientists from the NCF titled Shade coffee agroforests as native plant sources for restoration.

Planting trees as part of ecological restoration in a degraded forest in the Western Ghats, India. | Photo Credit: Vijay Kumar

Seed Harvesting

According to Anand Osuri, a scientist with NCF and the paper’s lead author, the study, which has just been published in the Journal of Applied Ecology, really took off in 2023. A year earlier, Vedika Dutta, also a co-author, had come to Osuri as a master’s student, wanting to study birds in coffee agroforests, with a focus on frugivorous or fruit-eating birds. “In the course of her work, we spent time in coffee estates, watching birds and the trees in which they foraged in these coffee plantations,” he says, adding that they were struck by the large numbers and wide variety of native tree seeds and seedlings on the coffee estate floor. “These seeds and seedlings were not just of the trees fruiting overhead, but also other species carried in from further afar by seed-dispersing birds and mammals.”

Around the same time, NCF was also thinking about a forest restoration project in the coffee-growing landscape of the hilly Malnad region by partnering with local residents and landowners. According to him, these landowners had different motivations to restore forests, ranging from an interest in conservation to entering carbon and biodiversity markets or attracting birds to their homestays. “There are a number of opportunities where interested landowners are keen to restore forests in areas where coffee is not being cultivated,” says Osuri, who has been participating in efforts to restore forests for nearly a decade and believes that the availability of diverse native plants, sourced locally and ethically, is critical to do so. “So, there was this restoration project that we were trying to develop, for which we needed to develop native plant nurseries, and the bird work was also going on.”

As part of the restoration project, researchers from NCF needed to collect seeds and seedlings that could be raised in nurseries. But “we didn’t want to be collecting lots of seeds from the forests themselves because that reduces the seed availability there, impacting the resources of animals, birds and insects,” says Osuri. “And so, we put both these pieces together to see if we could do more to harness the potential of coffee farms as a source of seeds for restoration.”

Seeds of Artocarpus hirsutus – a species that is endemic to the Western Ghats (found nowhere else on Earth) – during rescue from a coffee agroforest to a restoration nursery. | Photo Credit: Vedika Dutta

Why coffee

Coffee in India is largely shade-grown, making coffee plantations a potential “refuge for biodiversity,” says Osuri. “For a substantial set of native species important for restoration, we often find adults of those trees in the coffee estates.” However, most seeds that fall and germinate in coffee estates are weeded out because of the possibility of them competing with the coffee bushes for light and other resources, representing a loss for biodiversity conservation. “So, we thought we should make a more systematic effort to rescue their seeds and seedlings before they get weeded out

As part of the study, the team documented the diversity of native tree species found within the coffee estates, recording over 90 native tree species relevant for forest restoration in the region. Clarifying that the word “native”, in this instance, refers to “that particular eco-region of the Western Ghats, the wet evergreen rainforests” and not just plants “native to India,” he says that they were particularly interested in documenting species not only those native to the Western Ghats but also endemic to the region, those “found nowhere else on earth and some of which are classified by the IUCN as being threatened.”

Seeds of multiple native tree species rescued from coffee agroforests prior to sowing at a restoration nursery. | Photo Credit: Vijay Kumar

The NCF team also connected with farmers who were “willing to give us permission to visit their farms, collect seeds, and also, in the monsoon season, collect small seedlings which were growing along the roadside.” Between 2023 and 2024, around 18,000 seeds and seedlings of 56 native tree species were rescued and are currently being raised in the two restoration nurseries established through collaborations between NCF and agroforest owners. “We are trying to encourage and enable people to take up such projects to plant the right native species in the right places.”

Currently, the restoration project is in a pilot stage with the NCF team focusing on two collaborative initiatives: expanding the network of seed source coffee farms and developing more native plant nurseries. “The idea we are proposing is that we should not just view coffee agroforests as refuges for biodiversity, but also acknowledge their potential to contribute to conservation in the wider landscape by being a source of native plants for restoration.”

Seedlings of multiple native tree species rescued from coffee agroforests prior to replanting at a restoration nursery. | Photo Credit: Vijay Kumar

Future potential

In Osuri’s opinion, more collaborations and experimentation are now needed. “A few more things will need to be worked out before one can talk about substantially scaling up, since, at the moment, one of the limiting factors is nursery resources,” he says. One potential partner, who can play a key role in expansion, he believes, is the Karnataka Forest Department. “We plan to discuss our findings with department officers to see if there is a workable model for this,” he says. “If we can develop models for connecting seed sources in coffee farms with nurseries of the forest department, then the scale and potential really go up because the department already has an excellent network of nurseries.”

Osuri also hopes to strengthen and scale up their efforts in the Malenadu region, since nearly 70% of India’s coffee production comes from the Malenadu region, mainly from the Baba Budan Hills in Chikkamagaluru to Kodagu in the south. ”This is also an important region for biodiversity conservation and restoration,” he says. His long-term goal is to continue to explore opportunities and collaborate with coffee farmers and landowners for restoration, experiment with different approaches to restoration, and contribute in any other way he can to biodiversity in the region, he says.“And we would love to connect and exchange learnings with others interested in exploring similar models in different landscapes.”

source: http://www.thehindu.com / The Hindu / Home> News> Cities> Bengaluru / by Preeti Zachariah / May 05th, 2025