Environment

Nameri Tiger Reserve: Recorded Tigers Up From 3 to 12 by 2024-25

Nameri Tiger Reserve: Recorded Tigers Up From 3 to 12 by 2024-25

Why in news?

Assam reported an increase in recorded tigers at Nameri, according to ETV Bharat’s 6 October 2026 account. The report cites three animals in 2022, nine in the 2023–24 monitoring exercise and twelve in 2024–25. Nameri is a tiger reserve in northern Assam, adjoining the Eastern Himalayan foothill forests of Arunachal Pradesh. The figures suggest a positive change in recorded tiger presence within an important connected landscape. However, the latest survey period is 2024–25, not October 2026. Understanding the finding also requires knowing whether figures represent individually identified animals or estimates adjusted for animals missed by cameras. Those distinctions preserve the good news without overstating what the numbers establish.

The reserve and the wider foothill landscape

Nameri lies in Sonitpur district, on the north-bank side of Assam’s Brahmaputra landscape. Its northern boundary meets Pakke Tiger Reserve in Arunachal Pradesh. The Jia-Bhoroli and Bordikorai rivers are important features around its core. The National Tiger Conservation Authority’s management evaluation describes forests, riverine environments and wetlands within this setting. Such geographical connections matter because large mammals can use adjoining habitats rather than remain inside administrative boundaries.

The authority’s current reserve list records 320 square kilometres of core and 144 square kilometres of buffer, totalling 464. Older descriptions of 344 square kilometres refer to an earlier configuration. The management evaluation explains that 120 square kilometres of Sonai-Rupai Wildlife Sanctuary became a satellite core in 2015. A satellite core is a separate associated core area; the designation does not mean that the whole sanctuary is automatically included.

These distinctions also explain why a national park, a tiger reserve and a wider conservation landscape can have different areas. Nameri National Park forms part of the reserve, while buffer forests and the satellite core extend its management geography. The core focuses on critical tiger habitat; buffer management includes conservation alongside compatible community uses. Connected forest beyond those boundaries can still matter for movement. Treating every place name as the same boundary would distort both geography and population figures.

What camera monitoring actually records

Camera traps photograph animals when they pass a monitored location. Tiger stripe patterns allow photographs to be matched to individuals, helping distinguish repeated appearances from additional animals. The national Phase-IV protocol separates a minimum identified count from a statistical population estimate. The former records the animals reliably recognised during the exercise. The latter also uses information about detection to estimate animals that may have been present without being photographed.

Detection depends on factors such as coverage, terrain and the monitoring arrangement. Consequently, an increase in photographed individuals needs to be interpreted alongside comparable survey effort. This is not a reason to dismiss the new records. It is the reason a scientific monitoring programme documents how the records were collected. More detected tigers and a measured increase in the entire population are related claims, but they are not automatically identical.

Interpreting the sequence without adding unverified animals

The October report attributes the information to state officials and describes validation involving the Wildlife Institute of India. It also mentions two tiger records from Sonai-Rupai separately. Those should not simply be added to twelve to produce a new total of fourteen. Before combining records, an assessment must establish their geographical coverage, survey periods and whether the same individual could appear in both sets.

The same caution applies to the cause of an increase. Additional records could reflect survival and recruitment, movement into an area, or differences in detection. The reported figures alone do not allocate the change among those explanations. In a landscape connected with Pakke and other forests, movement is an especially relevant question. Establishing the cause requires the underlying individual histories and survey information, not a confident interpretation of three headline numbers.

Why habitat protection remains wider than a tiger count

Nameri’s management evaluation also identifies its importance for Asian elephants and the white-winged wood duck, which uses wetland habitat. The reserve is therefore more than a location for recording one species. Maintaining forest connections, wetlands and protection across the landscape serves a wider ecological purpose. A rising tiger record is useful evidence within that task, but it cannot alone demonstrate the condition of every habitat or threatened species.

Conclusion

The reported increase is an encouraging indication of tiger presence in Nameri’s connected foothill landscape. Its meaning becomes stronger, not weaker, when the survey years, area and monitoring method are stated accurately. The next useful comparison is a consistently documented survey series, supported by individual identification and continuing habitat protection, rather than an inflated combined total.

Sources

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1.

Consider the following statements about camera traps in tiger monitoring:

1.Individual tigers can be identified from camera-trap photographs by their stripe patterns.
2.Camera traps are commonly set in pairs so that both flanks of a passing animal are photographed.
3.Leopards cannot be identified individually from camera-trap photographs because they lack stripes.

Which of the statements given above are correct?

2.

Consider the following statements:

Statement-I: The number of tigers recorded in a reserve can rise between two surveys even if no cubs were born there in that period.

Statement-II: Tigers can move into a reserve from connected forests beyond its boundaries.

Statement-III: Wider camera coverage or greater survey effort can photograph tigers that were present earlier but missed.

Which one of the following is correct in respect of the above statements?

3.

Consider the following statements about tiger monitoring in India:

1.The national tiger estimation is held every four years.
2.Phase-IV monitoring within tiger reserves is carried out every year.
3.The Monitoring System for Tigers - Intensive Protection and Ecological Status (M-STrIPES) logs patrol data.
4.The national estimation uses camera traps alone, with no field surveys of signs or prey.

Which of the statements given above are correct?

4.

In estimating tiger numbers from camera traps by the capture-recapture method, a 'recapture' is:

Answer all 4 questions, then submit.
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