This video from ABC News: Tracking Animals With GPS from the year 2000 takes us back to the early days of CyberTracker. At that time, we had one CyberTracker running on an Apple Newton unit in the Karoo National Park in South Africa and just started our second project with the Kwe San Bushmen in Namibia, using the PalmPilot.
UNEP Global Environmental Alert Services
Photo: CyberTracker workshop organised by the African Wildlife Foundation
The illegal trade of animals – for luxury goods, traditional medicine or cultural ceremonies, pets, entertainment, and even research – is a major threat to wildlife conservation and welfare (Baker et al., 2013). Poachers and illegal traders use highly sophisticated and rapidly changing techniques to avoid detection. To keep pace with the “war on wildlife”, conservation and law enforcement communities have started to adopt cutting-edge military tools and techniques. High-tech equipment can magnify counter-poaching efforts without requiring armies of rangers or risking lives. Tools include acoustic traps, mobile technology, mikrokopters, radio frequency identification tags, encrypted data digital networks, camera traps, DNA testing, radio collars, metal scanners, and satellite imagery.
Derek Keeping and Rick Pelletier
Counting animals to estimate their population sizes is often essential for their management and conservation. Since practitioners frequently rely on indirect observations of animals, it is important to better understand the relationship between such indirect indices and animal abundance. The Formozov-Malyshev-Pereleshin (FMP) formula provides a theoretical foundation for understanding the relationship between animal track counts and the true density of species. Although this analytical method potentially has universal applicability wherever animals are readily detectable by their tracks, it has long been unique to Russia and remains widely underappreciated. In this paper, we provide a test of the FMP formula by isolating the influence of animal travel path tortuosity (i.e., convolutedness) on track counts. We employed simulations using virtual and empirical data, in addition to a field test comparing FMP estimates with independent estimates from line transect distance sampling. We verify that track counts (total intersections between animals and transects) are determined entirely by density and daily movement distances. Hence, the FMP estimator is theoretically robust against potential biases from specific shapes or patterns of animal movement paths if transects are randomly situated with respect to those movements (i.e., the transects do not influence animals’ movements). However, detectability (the detection probability of individual animals) is not determined simply by daily travel distance but also by tortuosity, so ensuring that all intersections with transects are counted regardless of the number of individual animals that made them becomes critical for an accurate density estimate. Additionally, although tortuosity has no bearing on mean track encounter rates, it does affect encounter rate variance and therefore estimate precision. We discuss how these fundamental principles made explicit by the FMP formula have widespread implications for methods of assessing animal abundance that rely on indirect observations.
After generations of fading into obsolescence, wildlife tracking has grown in popularity in recent years. No doubt this is due to the work of evolutionary biologist, Louis Liebenberg. He recognized the value of animal tracking skills, and helped traditional African hunter-gatherers use them to earn a living in data collection for wildlife monitoring, research, and anti-poaching efforts.
Part of Liebenberg’s work involved development of the CyberTracker evaluation system, which became an international standard for tracking skills. This elevated the ancient art and science of tracking to a respected discipline within the modern world. But regardless of its status within the modern world, tracking is useful to almost anyone.
Tracking skills deepen your awareness and understanding of wildlife. And that can help you better protect pets, livestock and garden produce; develop competency in hunting; make more informed decisions that impact wildlife; and meet people from vastly different walks of life. Not to mention the fact that it’s great physical and mental exercise, all at once.
I’m just recently back in Lomie (on border of the Dja Faunal Reserve in Cameroon) from two days of practical training for rangers on the use of the CyberTracker/Trimble for ecological monitoring and anti-poaching.
Instead of counting living monkeys, elephants, and great apes, we witnessed the arrest of about 15 poachers on more than five different occasions. We have been hiding and running, sleeping on the ground next to the fire with guards at both sides of our overnight spot— switching every two hours, assuring security. The Conservator, Achile Mengamenya, who was with us, has a good and dedicated team of park wardens (we were about 20). Nobody complains, while equipment is lacking, and everybody works hard. We were fed water and some rice and tomato sauce in the evening, and in the morning we have one or two beignets for each.
The total amount of confiscated illegal wildlife, from the poachers, is surprising—sitatunga, forest duikers, living and dead pangolin, several species of monkey, freshly killed or smoked. No chimp, gorilla or elephant meat though…as these species are victim of a different type and more specialized category of hunters.
We heard only one group of chimps was heard about 1 km from our campsite, so we can consider that this periphery of this Natural World Heritage site is probably almost hunted out.
However, based on the interrogations of the arrested poachers, and witnesses of some park guards, it is clear that the Dja is still housing good numbers of all species, and remains attractive for a lot of people who prefer to put snares in the park instead of working on their fields in the village. With the Dja managers lacking any support for the last few years, and no control happening anymore, the Dja Biosphere is being hit very hard. And poachers are getting increasingly aggressive. Over the last few weeks, one guard got shot in his arm, another received a blow of a machete above his eye, and last night inhabitants of Lomie attacked the post of the Conservator and his team.
Alain Lushimba (who is here with me, taking the lead in the training on cybertracker) and myself agree on the area’s high resemblance with the Lomako Yokokala Faunal Reserve. While being a beautiful forest with high potentials for biodiversity, the Dja is probably in the same conditions today as the Lomako forest was in 2004 when AWF started working in DRC. Support is needed. “Performance Based Management” and “Evidence-based Conservation” à la Lomako, and the lessons learned, will prove most helpful here. The park authorities and their team are extremely happy with the support we are giving.
Today, we will adapt a work plan in order to respond, first of all, to the absolute priority to get those poachers out of the Reserve, restore law and order, and let the people know that the conservator and his team are operational again.
All paths will be georeferenced, poaching camps destroyed, traces of gorillas, chimps, elephants, bongo and buffaloes recorded, and groups of monkeys—now all frightened—counted. Data will be shared with AWF headquarters the AWF-GIS (mapping) Centre. Evaluation on the ground is planned about 4 to 5months from now.
About the Author
Jef Dupain is AWF’s Director, African Apes Initiative. He holds degrees in biology and zoology from the University of Antwerp, has served as an associate professor for great ape conservation at Kyoto University, and has nearly 20 years of practical experience working on great ape conservation in and out of the field—he has an esteemed reputation as an authority on great ape conservation in Africa.
Controlling rhino poaching with the country’s eyes on you is just one of the many tasks that fall under managing the massive area that is the Kruger National Park (KNP). With nearly 2-million hectares of diverse flora and fauna to keep track of, and only about 300 field rangers to do so, monitoring the park is a logistical nightmare. However, the use of innovative technology and customised open-source software is making the ongoing conservation of South Africa’s natural heritage possible. The Kruger National Park is divided into 22 sections, each managed by one section ranger with a number of field rangers to patrol each section every day. Field rangers are imperative for conservation – from the ground, they contribute directly to the management of the park by collecting basic environmental data during their daily patrols. Information such as the distribution of rare and endangered species, availability of surface water and disease outbreaks are integral in the ongoing management of the park. These indicators are used by the SANParks management to provide an early warning system for disease outbreaks, identify trends in illegal exit and entry points, and enable the detection and control of invasive alien species. Therefore, it is extremely important that the data collected is accurate, but when information is recorded manually it is almost impossible to ensure its complete accuracy, which makes collating and using the raw data for decision-making difficult.
When faced with the unique set of challenges that the Kruger National Park presents in terms of ecological conservation, Douw Swanepoel, a Section Ranger of the Kruger National Park, recognised the value of the CyberTracker system in 2000 and soon afterwards 44 GPS devices were purchased for the park. CyberTracker is an open-sourced programme developed by Louis Liebenberg who felt that there was a need for a tracking programme that could work from a palmtop device. The programme is freely available, and the Kruger National Park team has customised the programme specifically for the park’s needs with databases including ranger patrols, vegetation condition assessments, animal behaviour monitoring and invasive species distribution mapping.
The CyberTracker programme used on the Trimble device form a solid partnership, producing a piece of equipment designed specifically to assist with conservation in the park. With an icon-based interface and descriptions in both English and local language, the CyberTracker system is easily accessible to field rangers regardless of literacy. Information is recorded with latitude and longitude coordinates through the integrated GPS system, ensuring that separate GPS skills are not necessary, and as data is captured electronically using graphic check lists, inaccuracy is reduced and minimal training is needed before the rangers can begin recording data. Moving map functionality allows the ranger to pinpoint his exact location on a 1:50 000 or 1:250 000 topographical map or aerial photograph should a ranger urgently need assistance from the SANParks office. With a built-in camera, rangers can document and geotag exactly what they see and send the photo immediately from the field to the office for review, increasing field to office collaboration.
“The device assists the field ranger to accurately call for assistance once a suspicious spoor or even a poached rhino is found,” says Louis Lemmer, from the SAN Parks Honorary Rangers’ National Executive Committee when asked how the device is helping in the fight against rhino poaching. “Previously they had to rely on their general knowledge and geographical features when calling for help, often leading to slow response times due to possible inaccuracies and confusion. The use of GPS technology removes this. Furthermore it is now possible to track and accurately map poacher movements. In this way patterns can be established and plotted on maps. This helps to plan preventative operations.”
The devices are useful as part of a long-term solution because at the end of each day, the data that the field ranger has collected is downloaded on to the section ranger’s computer and then uploaded to SANParks’ GIS/RS Analyst, Sandra Mac Fayden. This allows her to create a full, sophisticated picture of the environmental state of the Kruger National Park with intricate detailing that can only be sourced by professional field rangers with a working knowledge of the area. Once the data has been downloaded it is archived and documented so that it is usable in the long-term.
Thresholds in the programme are set so that the limits of acceptable change in the environment can be monitored. The data in the database is then used in routine analyses run through the programme in order to assess whether there is any danger of ecological factors exceeding those thresholds, thereby warning park management of any unacceptable changes. For example, monitoring data is analysed for each river which flows through the Kruger National Park and should water levels lower and exceed the threshold set by park management, urgent action is required.
With something as volatile and ever-changing as ecology, correct data is essential in its efficient management. In the fight against rhino poaching in the Kruger National Park where intervention and constant vigilance is necessary, rapid decision making is critical and this is only possible when every step of the data collection and analysis is accurate. By using the irreplaceable knowledge and ability of field rangers, curbing human error through easy-to-use software and technology with GPS capabilities, the SANParks team is efficiently managing the vast and diverse ecosystem of the Kruger National Park and engaging in the ongoing fight against rhino poaching.