29/12/2021
๐ก๐๐ช๐ฆ ๐๐ฅ๐ข๐ ๐ง๐๐ ๐๐๐๐๐
This week's ๐ก๐ฒ๐๐ ๐ณ๐ฟ๐ผ๐บ ๐๐ต๐ฒ ๐ณ๐ถ๐ฒ๐น๐ฑ features text from Roberto Cesar, Senior Reptile Staff (MWF) and photo by Pratiksha Bappoo, Round Island Warden (MWF).
๐ฃ๐ผ๐๐ ๐ฎ: ๐ง๐ต๐ฒ ๐ฃ๐ฟ๐ฎ๐ฐ๐๐ถ๐ฐ๐ฎ๐น๐ถ๐๐ถ๐ฒ๐ ๐ผ๐ณ ๐ง๐ผ๐ฟ๐๐ผ๐ถ๐๐ฒ ๐ ๐ผ๐ฟ๐ฝ๐ต๐ผ๐บ๐ฒ๐๐ฟ๐ถ๐ฐ๐
๐ง๐ถ๐บ๐ถ๐ป๐ด๐ ๐ผ๐ณ ๐ฎ๐ฑ๐๐น๐ ๐๐ผ๐ฟ๐๐ผ๐ถ๐๐ฒ ๐บ๐ผ๐ฟ๐ฝ๐ต๐ผ๐บ๐ฒ๐๐ฟ๐ถ๐ฐ๐
Tortoise morphometrics (body measurements) of the adult Aldabra tortoises (๐๐ญ๐ฅ๐ข๐ฃ๐ณ๐ข๐ค๐ฉ๐ฆ๐ญ๐บ๐ด ๐จ๐ช๐จ๐ข๐ฏ๐ต๐ฆ๐ข) is carried out bi-annually. The exercise aims to monitor the health condition and age structure of the population.
๐ ๐ฎ๐ธ๐ถ๐ป๐ด ๐๐ต๐ฒ ๐ฝ๐ฟ๐ผ๐ฐ๐ฒ๐๐ ๐ฎ๐ ๐ฐ๐ผ๐บ๐ณ๐ผ๐ฟ๐๐ฎ๐ฏ๐น๐ฒ ๐ฎ๐ ๐ฝ๐ผ๐๐๐ถ๐ฏ๐น๐ฒ
Adult morphometric measurements require good organisation to make the process as comfortable and efficient as possible so that the tortoise is not stressed while it is being handled. Evidently, the morphometric process can be stressful for some tortoises as they are lifted from the ground for weight measurement and turned at a 90ยฐ angle when measuring their plastron. As such, we rely on a team of about six to eight people to manipulate the very large individuals. Measuring tortoises starts at sunrise or in the late afternoon, so that it is not stressful for the tortoises and tiring for the team members, as it can get very hot during the middle of the day.
๐ง๐ต๐ฒ ๐ฝ๐ฟ๐ผ๐ฐ๐ฒ๐๐
The team selects an area and takes the morphometrics of all tortoises found in that specific area. Once a tortoise is spotted in the area, all the team members work together to get all the data in an efficient manner. Firstly, the weighing scale and pedestal is set up close to the tortoise and on level ground before the tortoise is moved. Secondly, if the team members cannot move the tortoise, such as when it is found in a steep area that makes lifting or placing the equipment difficult, they entice the tortoise to move to level ground.
๐๐บ๐ฝ๐ฟ๐ฎ๐ฐ๐๐ถ๐ฐ๐ฎ๐น ๐ฎ๐๐ฝ๐ฒ๐ฐ๐๐ ๐ผ๐ณ ๐๐ต๐ฒ ๐ฝ๐ฟ๐ผ๐ฐ๐ฒ๐๐
While it sounds like an easy task, quite often, the tortoise tries to run off as soon as they see us coming towards them. As amusing as it is to see them trying to run off, our team members have to react swiftly to set up all the equipment and ensure the tortoiseโs safety. In many cases, the adult tortoises are in inaccessible places, such as under trees, whereby it is difficult and is an arduous task to get their weight measurement. Lifting tortoises can be physically demanding and hands can be easily injured during the process, so staff must be careful to minimize injury. Good communication is needed when lifting and so that if any of our team memberโs fingers get trapped under the carapace of the tortoise, they must immediately inform others, so that the tortoise can be lowered safely to the ground. Thankfully, our reptile staff are familiar with this situation and know the tricks and ways to cope with all these difficult aspects of the process.