Develop a subroutine that analyzes a wildlife monitoring grid for conservation efforts in a nature reserve.

The subroutine should:

• have a sensible identifier
• take a 2D array named parkGrid as a parameter
• work out and output how many active poacher traps have been detected and disabled (represented by the character 'T' in the grid)
• work out how many endangered rhinos (represented by the character 'R') are remaining in the grid and:
  • if 0, then output 'Critical: No rhinos detected'
  • if between 1 and 5 inclusive, then output 'Vulnerable sector'