The Dead Mire (quest)

Objectives
Bring a Dead Mire Soil Sample to Vindicator Idaar at Telredor.
 * Dead Mire Soil Sample

Description
I have lived among the anchorites of Telredor for some time,, and in that time I've come to know the marsh quite well. Recently, I've started to notice a disturbing change in the land to the northeast.

Virtually all life there has begun to wither and die, seemingly without explanation. I have a few ideas as to what might be happening, but they are little more than speculation. If you were to bring me a sample of the soil in that area, I may be able to get to the bottom of this mystery.

Rewards
You will receive:
 * 10050 XP (or at level 70)
 * +250 reputation with Exodar
 * +250 reputation with Exodar

Progress
Were you able to get a sample of the soil in the Dead Mire?

Completion
Hmm... The soil seems to be depleted, so it can't be the cause of the problem, as I'd thought. What's the common link here? Why is everything suddenly dying?

Progression

 * 1) The Dead Mire (quest)
 * 2) An Unnatural Drought