We investigated the factors facilitating co-occurrence of two large carnivores, tigers (Panthera tigris) and common leopards (Panthera pardus), within a human-dominated landscape. We estimated... Show moreWe investigated the factors facilitating co-occurrence of two large carnivores, tigers (Panthera tigris) and common leopards (Panthera pardus), within a human-dominated landscape. We estimated their density and population size using camera-trap photographs and examined spatial segregation of habitats, temporal activity pattern, and diets in Chitwan National Park, Nepal. A Bayesian spatially-explicit capture-recapture model estimated densities of 3.2–4.6 (3.94 ± 0.37) tigers and 2.6–4.1 (3.31 ± 0.4) leopards per 100 km2 with abundance of 70–102 tigers and 66–105 leopards. Tigers occupied the prime habitats (grasslands and riverine forests) in alluvial floodplains of the Park whereas leopards appeared in Sal forests and marginal areas where livestock are present. Both tigers and leopards showed crepuscular activity patterns with a high overlap but tigers were less active during the day compared to leopards. Leopards’ activity in the day increased in the presence of tigers. Tiger and leopard diet overlapped considerably (90%). Compared to leopards, tigers consumed a higher proportion of the large prey and a smaller proportion of livestock. Our study demonstrates that sympatric large carnivores can coexist in high densities in prey-rich areas that contain a mosaics of habitats. To increase the resilience and size of the Chitwan carnivore population, strategies are needed to increase prey biomass and prevent livestock depredation in adjacent forests. Long-term monitoring is also required to obtain a detailed understanding of the interaction between the large carnivores and their effects on local communities living in forest fringes within the landscape. Show less
Buffer zones around parks/reserves are designed to maintain ecological integrity and to ensure community participation in biodiversity conservation. We studied the fund utilization pattern of... Show moreBuffer zones around parks/reserves are designed to maintain ecological integrity and to ensure community participation in biodiversity conservation. We studied the fund utilization pattern of buffer zone programs, mitigation measures practiced, and attitudes of residents in buffer zone programs of Chitwan National Park, Nepal. The buffer zone committees spent only a small portion (13.7%) of their budget in direct interventions to reduce wildlife impacts. Human-wildlife conflicts were inversely related to investment in direct interventions for conflict prevention and mitigation. Peoples’ attitudes towards wildlife conservation were largely positive. Most of the people were aware of buffer zone programs but were not satisfied with current practices. We recommend that buffer zone funds be concentrated into direct interventions (prevention and mitigation) to reduce wildlife conflicts. Our findings will be helpful in prioritizing distribution of funds in buffer zones of parks and reserves. Show less
Buffer zones around parks/reserves are designed to maintain ecological integrity and to ensure community participation in biodiversity conservation. We studied the fund utilization pattern of... Show moreBuffer zones around parks/reserves are designed to maintain ecological integrity and to ensure community participation in biodiversity conservation. We studied the fund utilization pattern of buffer zone programs, mitigation measures practiced, and attitudes of residents in buffer zone programs of Chitwan National Park, Nepal. The buffer zone committees spent only a small portion (13.7%) of their budget in direct interventions to reduce wildlife impacts. Human-wildlife conflicts were inversely related to investment in direct interventions for conflict prevention and mitigation. Peoples’ attitudes towards wildlife conservation were largely positive. Most of the people were aware of buffer zone programs but were not satisfied with current practices. We recommend that buffer zone funds be concentrated into direct interventions (prevention and mitigation) to reduce wildlife conflicts. Our findings will be helpful in prioritizing distribution of funds in buffer zones of parks and reserves. Show less
Tukker, A.; Udo De Haes, H.A.; Groot, W.T. de; Barendse, G.; Huppes, G.; Voet, E. van der; ... ; Bodegom, P.M. van 2018
Forty years of Leiden environmental sciences relates the story of CML, today one of the Faculty of Science’s eight institutes but with its roots in a more or less in dependent group of ex-activists... Show moreForty years of Leiden environmental sciences relates the story of CML, today one of the Faculty of Science’s eight institutes but with its roots in a more or less in dependent group of ex-activists within the university. Back in the day, many of those at the top of the university would probably have had trouble accepting that ‘those upstarts’ would still be around forty years on – not locked away in some cubbyhole with their stencil duplicator, but as a professor, assistant professor or even a dean. Today they are professors emeritus or have retired: Helias Udo de Haes, Wouter de Groot, Gerard Barendse, Gjalt Huppes, Gerard Persoon, Hans de Iongh and Jan Boersema – which doesn’t stop most of them just carrying on working. And a new generation of environmental scientists is now leading CML’s research and teaching: Geert de Snoo, Arnold Tukker, Martina Vijver, Peter van Bodegom, Jeroen Guinée, Ester van der Voet and René Kleijn. Show less
Wildlife attacks on humans and economic losses often result in reduced support of local communities for wildlife conservation. Information on spatial and temporal patterns of such losses in the... Show moreWildlife attacks on humans and economic losses often result in reduced support of local communities for wildlife conservation. Information on spatial and temporal patterns of such losses in the highly affected areas contribute in designing and implementing effective mitigation measures. We analyzed the loss of humans, livestock and property caused by wildlife during 1998 to 2016, using victim family’s reports to Chitwan National Park authorities and Buffer Zone User Committees. A total of 4,014 incidents were recorded including attacks on humans, livestock depredation, property damage and crop raiding caused by 12 wildlife species. In total >400,000 US dollar was paid to the victim families as a relief over the whole period. Most of the attacks on humans were caused by rhino, sloth bear, tiger, elephant, wild boar and leopard. A significantly higher number of conflict incidents caused by rhino and elephant were observed during full moon periods. An increase in the wildlife population did not coincide with an equal rise in conflict incidents reported. Underprivileged ethnic communities were attacked by wildlife more frequently than expected. Number of attacks on humans by carnivores and herbivores did not differ significantly. An insignificant decreasing trend of wildlife attacks on humans and livestock was observed with significant variation over the years. Tiger and leopard caused >90% of livestock depredation. Tigers killed both large (cattle and buffalo) and medium sized (goat, sheep, pig) livestock but leopard mostly killed medium sized livestock. Most (87%) of the livestock killing during 2012–2016 occurred within the stall but close (<500m) to the forest edge. Both the percentage of households with livestock and average holding has decreased over the years in buffer zone. Decreased forest dependency as well as conflict mitigation measures (electric and mesh wire fences) have contributed to keep the conflict incidents in control. Strengthening mitigation measures like construction of electric or mesh wire fences and predator-proof livestock corrals along with educating local communities about wildlife behavior and timely management of problem animals (man-eater tiger, rage elephant etc.) will contribute to reduce the conflict. Show less
Lesilau, F.L.; Fonck, M.; Gatta, M.; Musyoki, C.; Zelfde, M. van 't; Persoon, G.A.; ... ; Iongh, H.H. de 2018
Valedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23... Show moreValedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23 2017Museum Volkenkunde / Ethnographic Museum Show less
Kolipaka, S.S.; Tamis, W.L.M.; Zelfde, M. van 't.; Persoon, G.A.; Iongh, H.H. de 2017
We analyzed characteristics of the problem-causing tigers in Chitwan National Park (Nepal) to determine if specific groups or individuals in the source population have higher probability to get... Show moreWe analyzed characteristics of the problem-causing tigers in Chitwan National Park (Nepal) to determine if specific groups or individuals in the source population have higher probability to get involved in conflicts with humans. From 2007 to 2016 we identified a total of 22 such tigers including 13 that killed humans, six serial livestock killers and three tigers that threatened human safety (with no reported human and livestock casualty). Thirteen of these tigers were controlled or killed and four were relocated. We compared a subset of 15 ‘problem tigers’ involved in conflict between 2009 and 2013 with the Chitwan's tiger population obtained from three different sessions of camera trapping (2009, 2010 and 2013). We found that <5% of this source population (tigers recorded in camera trap) were involved in conflict. We conclude that transient tigers without a territory or physically impaired animals are more likely to be involved in conflict and recommend an early warning system be adopted to anticipate conflicts before they occur. This system should include regular monitoring and timely identification of problem tigers followed by decisive management action to either remove the tiger or encourage local people to modify their behavior to reduce the risk of conflict. Show less
Kolipaka, S.; Tamis, W.L.M.; Zelfde, M. van 't; Persoon, G.A.; Iongh, H.H. de 2017
Valedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23... Show moreValedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23 2017Museum Volkenkunde / Ethnographic Museum Show less
Valedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23... Show moreValedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23 2017Museum Volkenkunde / Ethnographic Museum Show less
Valedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23... Show moreValedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23 2017Museum Volkenkunde / Ethnographic Museum Show less
Valedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23... Show moreValedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23 2017Museum Volkenkunde / Ethnographic Museum Show less
Valedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23... Show moreValedictory lecture given by Prof.dr. Gerard A. Persoon Professor of Environment and Development and in particular Indigenous Peoples in Southeast Asia at Leiden University on Monday, October 23 2017Museum Volkenkunde / Ethnographic Museum Show less
