Showing posts with label conservation. Show all posts
Showing posts with label conservation. Show all posts

Thursday, 5 July 2018

Journey to the Leopard land: Life in Kathmandu valley


Yatra chituwa bhumi ko: kathmandu upatyaka ko jiwan

यात्रा चितुवा भुमिको: काठमाण्डौ उपत्यकाको जीवन

I work at Center for Molecular Dynamics Nepal (CMDN), a conservation genetics lab in Nepal, as bioinformatics specialist since 2015. I have been involved in research works on Bengal tigers (Panthera tigris) at CMDN since then. Through this research, I got introduced into the world of conservation genetics specializing my skills in population genetics through various computational tools mainly STRUCTURE software. This exposure helped me gain the knowledge about how powerful tools like population genetics can be used to study ecology of an apex predator across a landscape they range. Bengal tigers are found across Terai Arc Landscape (TAL) in southern plains of Nepal, where their populations are fragmented mainly into three geographical divisions by various anthropogenic features. The landscape genetics study of the tigers across TAL clearly revealed that these populations have three main genetic subdivisions and a moderate level of gene flow affected by habitat fragmentation. CMDN also collaborates with NGOs, INGOs and researchers from national and international academic institutions to study population genetics of snow leopard (Panthera uncia). Through these involvements, I have got the chance to review various ways of studying these charismatic big cats that play a vital role in their respective ecosystems using tools of molecular ecology.

Big cats have always fascinated me since my childhood. Specifically, the leopard (Panthera pardus; in nepali: Chituwa, चितुवा) has had an important impact from earlier part of my life. I grew up in Kathmandu hearing news about leopard encounters just about 5km distance away from my house. These incidents I believe have left a deep impact in my mind. Now that I am into wildlife research, I started realizing that these particular cats, unlike its two congeneric cousins (tiger and snow leopard), are not given the same priority although they play an equally important role in their ecosystem. Big cats across the globe are being increasingly threatened due to various human activities, and it is our duty to help secure their future for the sake of greater ecosystem health. Being on top of the food chain, big cats help to keep numbers of herbivores in check and thus regulates their population, which in turn will affect the sound distribution of flora in the forests. They are an excellent example of ecosystem engineers. Thus, every big cat is equally important and worth the protection for the benefit of whole ecosystem including all flora and fauna within it.

I realized that I needed to do something for these neglected big cats (leopards) that calls my hometown its home too since ages and generations. I started hiking in the forests of surrounding hills in Kathmandu valley. These hikes played huge role to grow my deep passion towards leopards. It helped me train my skills of tracking various signs that these elusive cats left in their territory. I still remember that moment when I saw my first ever pugmark of a leopard in a small forest patch just about 1 km away from nearest human settlement in the hills of Kathmandu. My enthusiasm and curiosity increased that led me find many more interesting signs of leopards around the valley. I started taking notes and recording these data which helped me develop my field biology skills unknowingly. Conclusively, all of these were helping me to understand leopards better than any written materials would have had, although I regularly and unreservedly refer to various books and literatures for acquiring knowledge about their ecology, behavior and evolutionary enigmas. They are one masterpiece creation of nature that is currently under threat. They need us and it is our duty to secure their future not just for them, but for the mountains that depend upon them.

My boss, Dr Dibesh Karmacharya, came up with an idea of developing a molecular tool that can identify as well as differentiate multiple felid species genetically in single assay. I started working in silico on reference genome sequences of wild felids and soon enough designed a molecular assay to identify and differentiate multiple species of felids using PCR technique. Experiments were carried out to validate these assays in the lab. Along this effort, I started putting up a proposal for Rufford Small Grant in order to test these tools on actual field collected non-invasive genetic samples (scats/poops) and study the wild felids around Kathmandu valley. This would also help me in my passion driven research endeavor to study leopards. Thankfully, the Rufford Foundation generously decided to fund us in our effort to develop such tool and study the wild felids around Kathmandu valley, which would aid most importantly in the field of leopard conservation. I am immensely thankful to the Rufford Foundation for providing such a great source of encouragement. My nice colleagues and good friends played huge role in supporting me throughout this path to help me secure this grant that will now allow me to achieve my goal. By studying these cats in the mountains I have hiked, breathed and lived, I hope to understand about their amazing secretiveness and elusiveness but mainly their evolutionary antiquity that has shaped them into such a magnificent beast ever appeared on the planet.

I fully dedicate this project to these big cats of Kathmandu valley. My journey that started long time ago just attained a kick-start height in the stepping-stone. And I look forward to continue explore the surmounting nature that beholds these enigmatic wild cats and many other walks of life. To the leopard, for the Chituwa. 

Jai Chituwa!

*******

Thursday, 25 May 2017

Call of the leopard

When the night falls, the phantom calls !

A small greenery cover on fringes of a suburb of Kathmandu valley, surrounded by agricultural farmlands and moderate sub-urban and rural settlements, where there is frequent movements of local people for their daily livelihood activities (agriculture) as well as attended on regular basis by internal & external tourists for recreational purposes like bird watching, hiking, mountain biking etc., is also frequented by an invincible resident, a leopard. The leopard frequently spray marks urine and scratches on trunk of a tall Schima wallichi (Nepali: chilaune) tree, which is the usual behavior of leopards for territory marking and identification. Local people knows about its presence and they hear it calling/growling every night, while few have even sighted in daylights. According to them, the leopard prowls in the cover of darkness to take stray dogs, which has become their urban prey as their natural prey (barking deer, wild boar, monkeys etc.) are believed to be depleting due to habitat encroachment, fragmentation and illegal hunting [SMCRF 2015]. The leopard thrives despite the change in their habitat unlike their food by changing their menu [Athreya et al. 2014]. As scientifically as its known, leopards cannot change its spots, but it does can change its behavior for it is the most adaptable and versatile of all the great cats.

Spatial location of the tree with scratch mark. [Google Earth Pro v7.1.5]
This is the scenario which is very common today in most of the leopards' global range around the globe, so are the cases in many parts of Nepal too. The coexistence only remains to be one until there is, but not limited to, a conflict. The dynamics of their behavior is just so dynamic across their range, habitat, regions, areas, and individuals. The same species have made far-west Nepal [Karki & Rawat 2014] and bordering Uttarakhand of India [Sondhi et al. 2016] a most probable global hotspot of human-leopard conflict making lives difficult at both the ends. Yet they are equally proving that they can coexist alongside human settlements as urban as Kathmandu valley which is one of the most fastest urbanizing cities in South Asia [WorldBank 2012].

But its just like a matter of the string where the tension is gradually building up. This is a high time for us to give enough attention towards these charismatic spotted big cat to understand their behavior, their ecology, their situation! Maybe the leopard is calling for sake of their plight being unheard of! Maybe they are trying to signal us through their spiritual power, for they are the part of the forest deity, Ban devi, the goddess of the jungle. The forests are there because they are there.

May the people living with leopards always be bestowed with the eternal blessings of the Ban devi for generations and generations to come as have been since the dawn of the time.

P.S. Coming soon is an artwork expressing spiritual connections of people living with leopards under the blessings of Ban devi!

Cited articles:
Athreya V. et al. (2014). A cat among the dogs: leopard Panthera pardus diet in a human-dominated landscape in western Maharashtra, India. Oryx.
Karki JB & Rawat GS. (2014). Human leopard conflict in Nepal: A case study from Baitadi district of Nepal. DNPWC Special Issue-2071.
Sondhi S, Athreya V. et al. (2016). Human attacks by leopards in Uttarakhand, India: an assessment based on perceptions of affected people and stakeholders. A technical report submitted to the Uttarakhand Forest Department.
SMCRF (2015). Biodiversity survey of Chandragiri Hill, Kathmandu, Nepal. Small Mammals Conservation and Research Fund.
WorldBank (2012). Urban Growth and Spatial Transition in Nepal: An Initial Assessment.

PHOTOS:




















*********