The morphology and geomorphic evolution of a large chain‐of‐ponds river system

Abstract

Rivers with discontinuous watercourses are part of the spectrum of river diversity. Chain‐of‐ponds types contain irregularly spaced, steep‐sided ponds that are separated by preferential flow paths on swampy valley fill. They often contain endangered ecological communities and are receiving greater attention for conservation and restoration. Very little is known about how these river types form, how they have evolved and how they function. Here we present the Late‐Quaternary evolution of one of the last remaining large‐scale chain‐of‐ponds systems in Australia, the Mulwaree Ponds. The chain‐of‐ponds was fully formed by 4.5 ka, with the position and alignment of the ponds being related to the position of pools of a palaeo‐river that is up to 100 ka old. Contemporary hydrogeomorphic processes are insufficient to create the ponds, but sufficient to maintain and keep them open. The phases of evolution for this chain‐of‐ponds system are synchronous with Late‐Quaternary changes in fluvial activity documented for other rivers in southeastern Australia. The ponds at Mulwaree have significant preservation potential over thousands of years. In the current landscape they are rare forms, providing significant grounds for conservation and protection of their distinctive geodiversity. © 2020 John Wiley & Sons, Ltd.

Avian diversity at Beas River conservation reserve under urbanization and intensive agriculture in Punjab, India

“…The formation of ponds along rivers is a natural phenomenon. These ponds can be seasonal and sometimes perennial fed by river water (Williams and Fryirs, 2020;Ren et al, 2018). Ponds play a significant role in maintaining rich avian diversity by unique habitat and ecosystem services (Smith et al, 2002;Cereghino et al, 2014;.…”

Biological Diversity: Current Status and Conservation Policies

“…These ponds can be seasonal and sometimes perennial fed by river water (Williams and Fryirs, 2020;Ren et al, 2018). Ponds play a significant role in maintaining rich avian diversity by unique habitat and ecosystem services (Smith et al, 2002;Cereghino et al, 2014;.…”

Local scale interventions dominate over catchment scale controls to accelerate the recovery of a degraded stream

“…In common with many south east Australian streams, at European settlement, Bryan Creek was a chain of ponds, which are intermittently spaced pools separated by densely vegetated channels [30][31][32]. Clearing of catchment vegetation in the early 19 th century across western Victoria [33] altered catchment hydrology and initiated widespread catchment erosion, gullying and stream incision [21,34].…”