Elephant herds compete more for food in anthropogenically created grasslands than in forests
The Hindu
A new study by scientists of the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) has found that elephant herds compete more for food in anthropogenically created grasslands than in forests even if the former has an abundance of food
A new study by scientists of the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) has found that elephant herds compete more for food in anthropogenically created grasslands than in forests even if the former has an abundance of food.
The study published in the journal Royal Society Open Science highlights how human activities can have ecological effects and an impact on the social lives of animals.
The scientists investigated the influence of food distribution within and between group interactions in female-bonded animals such as elephants.
Hansraj Gautam and T.N.C. Vidya tracked data of elephant behaviour from the long-term Kabini Elephant Project, set up in 2009 to identify and study individual elephants and explored whether within-clan hostile interactions (agonism) and between-clan agonistic encounters, its rate and distribution in the elephants is dependent on variation in grass abundance, grass dispersion and group size of the elephants.
They assessed data of elephant behaviour from the Kabini grasslands and its neighbouring forests and found that competition between elephant herds is greater in grasslands which have an abundance of food as compared to forests.
According to the Department of Science and Technology, Asian elephants exhibit female-bonded groups (while males are largely solitary) with the most inclusive social unit being the clan—equivalent to a social group, band, troop, clan or community.
It states that females within clans show fission–fusion dynamics, in which clan members are usually distributed across multiple groups (or parties), whose group sizes and compositions can change across hours.
Several principals of government and private schools in Delhi on Tuesday said the Directorate of Education (DoE) circular from a day earlier, directing schools to conduct classes in ‘hybrid’ mode, had caused confusion regarding day-to-day operations as they did not know how many students would return to school from Wednesday and how would teachers instruct in two modes — online and in person — at once. The DoE circular on Monday had also stated that the option to “exercise online mode of education, wherever available, shall vest with the students and their guardians”. Several schoolteachers also expressed confusion regarding the DoE order. A government schoolteacher said he was unsure of how to cope with the resumption of physical classes, given that the order directing government offices to ensure that 50% of the employees work from home is still in place. On Monday, the Commission for Air Quality Management in the National Capital Region and Adjoining Areas (CAQM) had, on the orders of the Supreme Court, directed schools in Delhi-NCR to shift classes to the hybrid mode, following which the DoE had issued the circular. The court had urged the Centre’s pollution watchdog to consider restarting physical classes due to many students missing out on the mid-day meals and lacking the necessary means to attend classes online. The CAQM had, on November 20, asked schools in Delhi-NCR to shift to the online mode of teaching.