CONSERVATION CHALLENGES

Illegal hunting and wildlife trade

Impacts of hunting

    A tiger killed in a snare set for catching smaller wildlife

The impacts of hunting are ruinous. Random removal of complex faunal assemblage disrupts the ecological process and balance at several levels. The consequences of such human interference on faunal assemblages are obviously negative. Several species could be locally stamped out; hunting of herbivores would directly affect carnivores that are dependent on them. Even if small populations persist in an area, they could be "ecologically extinct" that is no longer fulfilling their ecological role in the forest, which affects the forest composition itself. The densities of wildlife will be low in areas where poaching pressures are high.

Prey depletion is one of the most serious threats to large carnivores whose population densities, survival rates and chance of persistence are all strongly tied to the densities of their principal prey. This massive elimination of the prey will immediately eliminate large carnivores like the tiger that are at the apex of the food chain. A tiger annually needs about 50-60 deer-sized animals for its survival. As a thumb rule for every 50 deer hunted in a year there will be room for one less tiger on this earth. The prey base, must therefore be protected. Vast stretches of forests particularly in North East India which show up 40%+ crown density in satellite imagery are actually bereft of wildlife as it has been severely hunted out. Illegal hunting, therefore is a major threat to wildlife in India.

Some Hunting techniques used by poachers in Southern India

Source : Hunting for an answer:
Is local hunting compatible with large mammals conservation in India, M. D.Madhusudhan and
K. Ullas Karanth

  Hunting Techniques   Target Species

Active hunting method

Walk-and-see shotgun hunting by
night using spotlights
Sambar, chital, flying squirrel,
porcupine, civets, black napped hare 
Sit-and-wait shotgun at
fruiting trees/waterholes
on moonlit nights 
Chital, pig, civets   
Sit-and-wait shotgun hunting
at waterholes/fruiting trees in
daytime
Chital, muntjac, langur, bonnet
macaque, giant squirrel, piegeons,
hornbills, pheasants 
Bow and clay shots by day
Primates, giant squirrel, flying
squirrel, monitor lizard, birds  
Hunting dogs and nets by day  Langur, bonnet macaque
Hunting dogs and club/machete
by day 

Chevrotain, black-naped hare,
langur, mongoose 

Physical capture from rest-sites/
nests during daytime 
Flying squirrel, palm civet, hornbills,
bird eggs/nestlings
Smoking/digging out burrows
in daytime 
Porcupine, pangolin 
Catapult in daytime Giant squirrel, birds
 
Passive hunting methods
  • Wire snares
  • Baited explosives
  • Scissor traps
  • Deadfall trap
  • Pitfall trap
  • Bird lime
  • Chital, pig, black-naped hare 
  • Pigs 
  • Small rodents, small pheasants 
  • Black-naped hare, chevrotain, pig
  • Chelonians 
  • Frugivorous birds

Suggested readings :
Hunting of wildlife in tropical forests, Implications for biodiversity and forest peoples, Elizabeth
L. Bennett, John G. Robinson, Biodiversity series - Impact studies, September 2000

Hunting for an answer: Is local hunting compatible with large mammals conservation in India,
M. D. Madhusudhan and K. Ullas Karanth

Other challenges:
>> Progressive loss of habitat

>> Commercial exploitation of forests
>> Removal of dead and fallen trees
>> Collection of minor forest produce

>> Livestock grazing
>> Fire
>> Unscientific management practices