Updates to WWF Camera-trap database

Hi all!

Since Shariff Wan Mohamad from WWF-Malaysia originally posted his camera-trap database in Rimba’s Biologist Toolbox in 2012, a number of data management solutions have been developed by various researchers and organisations; some of which are freely available online. To join in the fun, he has decided to post a long overdue updated version of his camera-trap database, which he only just recently finalised. Some of the main improvements integrated into this database are listed below:

  • Added the ability to automatically fill up subsequent records of the same event based on customisable time interval between photos
  • Added a function to automatically filter records into independent events based on customisable time interval
  • Added direct output of daily capture matrix files for PRESENCE and SECR
  • Added an option to physically export good photos and photos of selected species to a folder in Windows
  • Added a more detailed user guide

You can download version 070518 of the database here.

You can also download the same database with some sample data here, to see how the outputs look like.

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Inputting data into the database is relatively simple; you only have to fill in two forms – one for camera-trap locations and one for the photo data. The results will be compiled automatically. However, make sure to read the data entry guide in the database beforehand! If your existing camera-trapping data are in MS Excel spreadsheets or a similar format, it can be imported into this database.

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Shariff won’t go into details about the summaries and analysis outputs; you can see the results for yourself in the database which contains sample data. Most of the outputs are pretty basic and easy to understand. Some of the main automated outputs are:

  • Trapping efforts
  • Distance between camera-trap locations
  • Naïve occupancy
  • Relative abundance
  • Activity patterns
  • Occupancy matrix for input into software PRESENCE
  • Data sheets for population density analysis in SECR

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As mentioned earlier, there are already a number of camera-trap database solutions currently available. Shariff recommends testing out these alternatives before deciding on which one to use, or even before choosing to develop your own. The best way to gauge which solution is best would be to input a sample of your data into the database and see what the outputs look like – then you would be able to assess whether it is suitable for your use or not.

If you don’t have MS Access the data entry can still be run via a free version called MS Access Runtime, although there are limitations in customizing or editing the database. The current version of this database was tested on MS Access 2016 (32 bit and 64 bit) on the Windows 10 platform.

Anyway that’s the general overview of Shariff’s database; if you have any inquiries then he is willing to assist in any way he can. If the results of this database are used for any publications or reports, please credit WWF-Malaysia. Hope this helps!

Shariff can be contacted at: shariff1mohamad AT gmail DOT com.

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Publication update 21: Project Pteropus press release: Durian Industry May Suffer Without Endangered Fruit Bats

Flying foxes pollinate regionally important fruit crop

Kuala Lumpur, 19 September – Scientists here have discovered that Southeast Asia’s highly popular durian tree is pollinated by locally endangered fruit bats known as flying foxes.

By putting camera traps in durian trees on Tioman Island, Malaysia, researchers collected video evidence showing the island flying fox (Pteropus hypomelanus) pollinating durian flowers, leading to the production of healthy durian fruit. The study has just been published in the journal Ecology and Evolution.

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Still shots from a video recording of a flying fox feeding on durian flower nectar.

The spiky tropical durian fruit is highly prized throughout its native region. A ubiquitous icon of Southeast Asian culture, it is also a lucrative industry, generating millions of US dollars in local and international trade. And these economic profits owe a huge debt to bats.

Commonly referred to as flying foxes, large fruit bats of the genus Pteropus are severely threatened by hunting and deforestation. They are often sold and eaten as exotic meat due to an unsubstantiated belief that consuming them can help cure asthma and other respiratory problems.

On top of this, they are also persecuted and killed as agricultural pests, as some people claim that the bats cause damage and economic loss by feeding on cultivated fruits. Consequently, these factors have led to severe declines in flying fox populations worldwide.

Yet these bats actually play very important roles as seed dispersers and pollinators in rainforests, especially on islands. The disappearance of flying foxes could thus have disastrous repercussions for tropical ecosystems. Now, this international team of researchers from Malaysia, France, India, and Thailand, in collaboration with Tree Climbers Malaysia, has found that Southeast Asia’s durian supply could be affected too. Continue reading

Toolbox update 7: How to use Peninsular Malaysia’s first online map of limestone hills

For many years, scientists in Project Limestone have been frustrated by the lack of GIS information on limestone hills in Malaysia.  Till now, information on localities, shapes and sizes could only be obtained from books and journals, but not anymore…

Thanks to Liew and the team, Rimba has created Peninsular Malaysia’s first online map containing 445 hills.  This GIS map can easily be accessed by anyone who has Google Earth. This map is not a final product, but can be constantly improved by anyone who wants to add spatial or biological information on limestone hills. All the methods and data are available for anyone to reuse, revise, remix and redistribute.

With this map, we were finally able to conduct a simple conservation prioritisation exercise for limestone hills based on their size and the degree to which they are isolated and disturbed.

You can find our paper published here in the journal Tropical Conservation Science. Meanwhile, here are videos that explain the methodology, and how to update and use this map!

 

Project update 20: Harimau Selamanya year 2 in review

The end of 2015 marks the completion of the second year for Project Harimau Selamanya. The year 2015 has been more productive and eventful than we could have ever imagined when we started off! In the space of a year, we have continued deepening collaboration with state and federal government partners. Our field team has also strengthened their fieldwork and wildlife detection skills through professional training and field practice. Best of all, our camera trap efforts have paid off with important data to help with the conservation of Kenyir’s forests! All these were made possible with Perhilitan and the state government’s commitment to project collaboration, as well as the generous funding from Panthera and Woodland Park Zoo.

2015 saw a vibrant field team in Harimau Selamanya headed by Reuben, Wai Yee, Sri and Junn Kitt and staffed by our fantastic field assistants Puyee, Baki, Donos, Maslan, Landur and Rahmat. We were also joined by enthusiastic and conservation-driven research assistants Akmal, Zatul and Shu Woan.

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The 2015 Harimau Selamanya team

The 2015 team oversaw three simultaneously-running major projects: Continue reading

Project update 19, photo update 11, video update 6: Project Pteropus phase 1 in review

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It’s definitely been a crazy, roller coaster ride for Project Pteropus so far! Time flies when you’re having fun, and before we knew it, we’re already in the third and final year of Sheema‘s PhD. We’re due to start a tiny bit more of fieldwork over the next 3 months, then everything needs to be wrapped up pronto as she’ll be on her way to spend 6 months in Paris this June 🙂

So what has the project achieved so far? Some pretty exciting stuff, as it turns out. Almost all the data are in already, but some still need a bit of time to be analysed. We’ve decided to summarise our results so far into an interim report, which is why you’re getting this bumper post that serves as a compilation of updates, photos AND videos all at the same time! 😀

Also, HUGE thanks to Bat Conservation International for awarding us a small grant in September last year. Without this funding we definitely wouldn’t have been able to achieve as much as we have, and we’re deeply grateful. Click on the BCI logo below to find out more about applying for their small grants:

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Meanwhile, here’s what we’ve found out up to this point (if you’re just interested in the images and don’t need to read through the information, just scroll down further!): Continue reading

Publication update 18: Bats in the Anthropocene

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If you’d like to learn more about bats, don’t miss out on downloading this brand new, open-access book on bat conservation edited by Tigga Kingston and Christian Voigt‘Bats in the Anthropocene: conservation of bats in a changing world’. Thanks to partial funding from SEABCRU, this online book is completely free to download, either in whole or as separate chapters. Continue reading

Publication update 17: Kenyirus sheema – a new land snail species from an old rainforest

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Holotype of the new species Kenyirus sheema. Foon, Tan and Clements, 2015.

The Belum-Temengor Rainforest Complex (BTFC) in the State of Perak covers a cross section of Peninsular Malaysia’s terrestrial ecosystems from lowland rainforests at the foothills to tropical montane cloud forests in the highlands. This 300 sq km of wilderness is home to healthy populations of mammalian megafauna including the critically endangered Malayan Tiger, Panthera tigris jacksoni. In fact, the remarkable state of ecosystem preservation in BTFC makes it one of the most critical regions in Peninsular Malaysia for the conservation of almost every group of rainforest flora and fauna. However, it was a cherry-sized snail that particularly caught the attention of Reuben, during one of his routine mammal surveys in BTFC one morning in February 2009. Continue reading