John Gill Commentary Joel 1:20

"Yea, the beasts of the field pant unto thee; for the water brooks are dried up, and the fire hath devoured the pastures of the wilderness." — Joel 1:20 (ASV)

The beasts of the field cry also unto you; As well as the prophet, in their way; which may be mentioned, both as a rebuke to such who had no sense of the judgments upon them, and called not on the Lord; and to express the greatness of the calamity, of which the brute creatures were sensible, and made piteous moans, as for food, so for drink; panting through excessive heat and vehement thirst, as the hart, after the water brooks, of which this word is only used, (Psalms 42:1); but in vain:

for the rivers of waters are dried up; not only springs, and rivulets and brooks of water, but rivers, places where were large deep waters, as Aben Ezra explains it; either by the Assyrian army, the like Sennacherib boasts (Isaiah 37:25); and is said to be done by the army of Xerxes, wherever it came; or rather by the excessive heat and scorching beams of the sun, by which such effects are produced:

and the fire has devoured the pastures of the wilderness; (See Gill on Joel 1:19); and whereas the word rendered pastures signifies both "them" and "habitations" also; and, being repeated, it may be taken in one of the senses in (Joel 1:19) ; and in the other here: and so Kimchi who interprets it before of "tents", here explains it of grassy places in the wilderness, dried up, as if the sun had consumed them.