Salamander Larvae and the Struggles with Drought and Low Water
Автор: David J. Hand
Загружено: 2023-04-29
Просмотров: 17
Описание: Another spring and another bad situation developing here in Pennsylvania. Very little spring rain and a winter with next to no snow leads to devastation like this. This is one of the few vernal pools that I know that contain Marbled, Jefferson, and Spotted larvae. In the small pools there are many large Marbled larvae, large for this time of year having hatched only some 12 weeks ago in early December. But remembering larvae metamorphosis speeds up when pools start to dry up and oxygen levels drop. They are developing fast and their lungs are functioning as they are coming to surface for frequent gulps of air, you can see their tiny ripples on the surface of the drying pools. They, the Marbled, stand a chance of completing their metamorphosis to land but the newly hatch Jefferson and Spotted [egg masses with embryos exposed to the air, you could see the ready to hatch embryos moving inside their eggs] have no chance of surviving this year once again, unfortunately. Pa. 4-24-23
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