Final answer:
Without site-specific tiger population data, determining which protected monitoring site has the smallest tiger population is not possible from the provided references. Comprehensive surveys and recent census data are needed to identify specific tiger populations at protected sites accurately.
Step-by-step explanation:
Based on the available data, identifying the protected monitoring site with the smallest tiger population is challenging without direct numbers or site-specific figures for tiger estimates. The information provided references various biogeographical and conservation efforts without detailed specifics on tiger populations. To achieve a precise answer, one would need access to the most recent tiger census data, particularly targeting protected areas known to be habitats for tigers. Unfortunately, without the specific tiger population data for each protected site, it would only be possible to speculate, which would not be accurate or professional.
It is important to consider factors mentioned in the referenced materials, such as the significant overlap in species range, which affects the count of sites for various species. Additionally, challenges in obtaining detailed population estimates are noted due to difficulties in conducting extensive surveys, especially in large protected areas with only basic tools and limited professional personnel. Developing an understanding of challenges in conservation biology can be crucial for understanding how to derive accurate population counts for endangered species such as tigers.