While experts dither over corridor viability, big cats from Rajasthan offer some lessons
Jay Mazoomdaar
IT WAS Jaipur, late 2007. A few months before the PMO cleared the plan to fly in tigers to Sariska from Ranthambhore, an IAS officer was holding forth on the subject at a private function. “Let’s build a corridor for tigers; 100-metre wide. How much land (do) we require? It’s not even 200 km between the two forests,” he said, clearly exasperated by the delay. Just 140 km, a colleague assured him, and generously proposed that the width of the passage be doubled: “We will put trees and all. It will be fenced and safe.” The enthusiasm was infectious till a senior forest officer jumped in to play spoilsport.
As forests get fragmented due to rapid incursion of roads, railways, mines, cropland or settlements, maintaining connectivity and therefore healthy gene flow among small wild populations is becoming more challenging than ever. More so, because the popular perception of a wildlife corridor, particularly to those in the corridors of power, is indistinguishable from say, freight corridors.
The term corridor gives an impression of linearity. But animals seldom move like crows fly. The shortest course we chart out for tigers at official meetings and even in research papers may not suit them at all. The route may not have enough water sources or vegetation cover in which they can sneak around. Or it may be just too crowded.
For many years now, experts and officials have been wondering how to make the 2-4 km stretch between Ranthambhore National Park (RNP) and Keladevi Wildlife Sanctuary (KWLS) — both part of the Ranthambhore Tiger Reserve (RTR) but separated by the Banas river — a safe animal corridor so that tigers from the park can populate the sanctuary.
The ravine wilderness that connects RNP and KWLS is being flattened for agriculture by local villagers who have established several hamlets to manage their new cropland. Though ecologically vibrant, ravines are classified as wasteland, reclamation of which is officially encouraged. Illegal sand mining on several stretches along the Banas further chokes this passageway. Unsurprisingly, of the 50-odd Ranthambhore tigers, only one is settled in KWLS, crowded by dozens of villages and their livestock.
But while the close proximity of RNP and KWLS makes restoring connectivity look feasible, any prospect of reviving the Ranthambhore-Kuno corridor has long been written off. Tigers from Rajasthan and Madhya Pradesh mated frequently till the trans-Chambal link snapped three decades ago. While Kuno remained connected to other MP forests, Ranthambhore became an island, hemming in its then population of 14 tigers.
The numbers have multiplied almost four-fold in RNP since. But the only way the Ranthambhore tigers can escape disastrous consequences of inbreeding is through revival of the gene flow from MP. But nobody gave the lost corridor a chance. Once the resident tigers of Kuno were poached, it was readied for lions from Gujarat. When Narendra Modi refused to oblige, the focus shifted to reintroducing cheetahs from Africa.
BETWEEN RTR and Kuno, the Chambal river forms the boundary between Rajasthan and MP. In this stretch, five Rajasthan rivers — Mez, Chakan, Kharad, Kundli and Banas — join the Chambal from the north. Another six tributaries — Kalisindh, Parbati, Seep, Param, Doni and Kuno — reach from the south.
Dispersing tigers prefer to keep to watercourses. Each of these meandering rivers connects RNP to neighbouring forests. Along the Chambal axis, Chakan, Kharad and Kundli lead to Sawai Mansingh sanctuary while Mez offers passage to Ramgarh Bishdhari forests. Kalisindh is the access to Darrah sanctuary while Parbati reaches the forests of Baran district. Kuno and Param rivers pass through the Kuno sanctuary while Doni and Seep flow in the larger Kuno landscape.
In the recent past, Ranthambhore tigers have travelled far and wide — Kota, Bharatpur and Mathura — as the rivers flow. There was no reason why they, if their nerve held, would not reach Kuno in MP. In fact, quite a few floaters — the last one in 2010 — ventured south inside MP across the Chambal, but eventually moved back to Rajasthan.
So, many considered it a fluke when a Ranthambhore male (T38) walked out of RNP’s Sultanpur area in late 2010 and reached Kuno in January 2011. The itinerary is sketchy but T38 walked southeast to cross the Banas and spent two weeks in a patch of ravine forest before crossing the Chambal at its confluence with Param and then followed the river upstream to reach the heart of Kuno. It was a leisurely journey, with many stopovers and kills.
Yet, T38 was merely considered lucky, till a sub-adult tiger decided to match his skills last month. One of the three cubs of T26, the young male left RNP’s Khandar area on 23 January. It reached the Banas the next day and apparently sensing mining activities to its right, turned left along the river, crossed a couple of roads, and climbed atop the hills of KWLS using the only available pass by 26 January. Unimpressed by the mess inside Keladevi, it charted its course down to the Chambal river and across to MP in the next five days.
Here, its intuition took over again and it chose to follow the Kuno river southward. Parallel to the Chambal runs a 12- feet deep irrigation canal that briefly goes inside a tunnel while passing over the Kuno. The tiger reached the other side of the canal walking under this tunnel on 5 February and, as if to reward himself, made its first kill in MP soon after. Then it slowed down in the comfort zone of reserve forests south of Kuno sanctuary that offer ample feral cattle. The tiger has made three more kills since and is not showing any urgency to head southwards along the river. It has already walked at least 80 km, more than the linear distance between RNP and Kuno, without being spotted even once, and is a day’s walk away from joining predecessor T38 inside the sanctuary.
Unlike T38 in 2011, T26 junior is being tracked daily by the forest departments of the two states with the help of TigerWatch, a Ranthambhore NGO, and village wildlife watchers appointed for the task. Tired of waiting for lions, and now cheetahs, the guards at Kuno sound both excited and nervous to be hosting tigers again. Veterans, who still remember Kuno’s last tigers, are wary of poachers even as they pray that the next Ranthambhore crossover is a female.
The remarkable journeys of the Ranthambhore duo have three lessons for us. The wild does not need handholding and knows what it is up to. The river courses, and the surrounding ravines, must be secured and monitored for tiger migration. Every tiger in transit needs rigorous tracking to avoid poaching or conflict.
Meanwhile, with RNP finally having surplus tigers and habitats not improving in KWLS, dispersal of cats outside the reserve will continue. As a bunch of cubs get ready to break free in the coming months, Kuno is likely to welcome a few more tigers, hopefully females this time, from Ranthambhore.
Once the settlers start breeding in Kuno, young tigers will eventually venture further south inside MP to find partners or perhaps individuals from MP’s northernmost tiger pockets will come checking at Kuno. With time, the reverse wild traffic will hit Ranthambhore, carrying fresh genes to Rajasthan in many decades.
If only we take cue from the tiger instead of deciding for it.
Source: http://tehelka.com/when-the-tiger-shows-us-the-passageways/
Jay Mazoomdaar
IT WAS Jaipur, late 2007. A few months before the PMO cleared the plan to fly in tigers to Sariska from Ranthambhore, an IAS officer was holding forth on the subject at a private function. “Let’s build a corridor for tigers; 100-metre wide. How much land (do) we require? It’s not even 200 km between the two forests,” he said, clearly exasperated by the delay. Just 140 km, a colleague assured him, and generously proposed that the width of the passage be doubled: “We will put trees and all. It will be fenced and safe.” The enthusiasm was infectious till a senior forest officer jumped in to play spoilsport.
As forests get fragmented due to rapid incursion of roads, railways, mines, cropland or settlements, maintaining connectivity and therefore healthy gene flow among small wild populations is becoming more challenging than ever. More so, because the popular perception of a wildlife corridor, particularly to those in the corridors of power, is indistinguishable from say, freight corridors.
The term corridor gives an impression of linearity. But animals seldom move like crows fly. The shortest course we chart out for tigers at official meetings and even in research papers may not suit them at all. The route may not have enough water sources or vegetation cover in which they can sneak around. Or it may be just too crowded.
For many years now, experts and officials have been wondering how to make the 2-4 km stretch between Ranthambhore National Park (RNP) and Keladevi Wildlife Sanctuary (KWLS) — both part of the Ranthambhore Tiger Reserve (RTR) but separated by the Banas river — a safe animal corridor so that tigers from the park can populate the sanctuary.
The ravine wilderness that connects RNP and KWLS is being flattened for agriculture by local villagers who have established several hamlets to manage their new cropland. Though ecologically vibrant, ravines are classified as wasteland, reclamation of which is officially encouraged. Illegal sand mining on several stretches along the Banas further chokes this passageway. Unsurprisingly, of the 50-odd Ranthambhore tigers, only one is settled in KWLS, crowded by dozens of villages and their livestock.
But while the close proximity of RNP and KWLS makes restoring connectivity look feasible, any prospect of reviving the Ranthambhore-Kuno corridor has long been written off. Tigers from Rajasthan and Madhya Pradesh mated frequently till the trans-Chambal link snapped three decades ago. While Kuno remained connected to other MP forests, Ranthambhore became an island, hemming in its then population of 14 tigers.
The numbers have multiplied almost four-fold in RNP since. But the only way the Ranthambhore tigers can escape disastrous consequences of inbreeding is through revival of the gene flow from MP. But nobody gave the lost corridor a chance. Once the resident tigers of Kuno were poached, it was readied for lions from Gujarat. When Narendra Modi refused to oblige, the focus shifted to reintroducing cheetahs from Africa.
BETWEEN RTR and Kuno, the Chambal river forms the boundary between Rajasthan and MP. In this stretch, five Rajasthan rivers — Mez, Chakan, Kharad, Kundli and Banas — join the Chambal from the north. Another six tributaries — Kalisindh, Parbati, Seep, Param, Doni and Kuno — reach from the south.
Dispersing tigers prefer to keep to watercourses. Each of these meandering rivers connects RNP to neighbouring forests. Along the Chambal axis, Chakan, Kharad and Kundli lead to Sawai Mansingh sanctuary while Mez offers passage to Ramgarh Bishdhari forests. Kalisindh is the access to Darrah sanctuary while Parbati reaches the forests of Baran district. Kuno and Param rivers pass through the Kuno sanctuary while Doni and Seep flow in the larger Kuno landscape.
In the recent past, Ranthambhore tigers have travelled far and wide — Kota, Bharatpur and Mathura — as the rivers flow. There was no reason why they, if their nerve held, would not reach Kuno in MP. In fact, quite a few floaters — the last one in 2010 — ventured south inside MP across the Chambal, but eventually moved back to Rajasthan.
So, many considered it a fluke when a Ranthambhore male (T38) walked out of RNP’s Sultanpur area in late 2010 and reached Kuno in January 2011. The itinerary is sketchy but T38 walked southeast to cross the Banas and spent two weeks in a patch of ravine forest before crossing the Chambal at its confluence with Param and then followed the river upstream to reach the heart of Kuno. It was a leisurely journey, with many stopovers and kills.
Yet, T38 was merely considered lucky, till a sub-adult tiger decided to match his skills last month. One of the three cubs of T26, the young male left RNP’s Khandar area on 23 January. It reached the Banas the next day and apparently sensing mining activities to its right, turned left along the river, crossed a couple of roads, and climbed atop the hills of KWLS using the only available pass by 26 January. Unimpressed by the mess inside Keladevi, it charted its course down to the Chambal river and across to MP in the next five days.
Here, its intuition took over again and it chose to follow the Kuno river southward. Parallel to the Chambal runs a 12- feet deep irrigation canal that briefly goes inside a tunnel while passing over the Kuno. The tiger reached the other side of the canal walking under this tunnel on 5 February and, as if to reward himself, made its first kill in MP soon after. Then it slowed down in the comfort zone of reserve forests south of Kuno sanctuary that offer ample feral cattle. The tiger has made three more kills since and is not showing any urgency to head southwards along the river. It has already walked at least 80 km, more than the linear distance between RNP and Kuno, without being spotted even once, and is a day’s walk away from joining predecessor T38 inside the sanctuary.
Unlike T38 in 2011, T26 junior is being tracked daily by the forest departments of the two states with the help of TigerWatch, a Ranthambhore NGO, and village wildlife watchers appointed for the task. Tired of waiting for lions, and now cheetahs, the guards at Kuno sound both excited and nervous to be hosting tigers again. Veterans, who still remember Kuno’s last tigers, are wary of poachers even as they pray that the next Ranthambhore crossover is a female.
The remarkable journeys of the Ranthambhore duo have three lessons for us. The wild does not need handholding and knows what it is up to. The river courses, and the surrounding ravines, must be secured and monitored for tiger migration. Every tiger in transit needs rigorous tracking to avoid poaching or conflict.
Meanwhile, with RNP finally having surplus tigers and habitats not improving in KWLS, dispersal of cats outside the reserve will continue. As a bunch of cubs get ready to break free in the coming months, Kuno is likely to welcome a few more tigers, hopefully females this time, from Ranthambhore.
Once the settlers start breeding in Kuno, young tigers will eventually venture further south inside MP to find partners or perhaps individuals from MP’s northernmost tiger pockets will come checking at Kuno. With time, the reverse wild traffic will hit Ranthambhore, carrying fresh genes to Rajasthan in many decades.
If only we take cue from the tiger instead of deciding for it.
Source: http://tehelka.com/when-the-tiger-shows-us-the-passageways/
