A new protocol for assessing the conservation priority of groundwater‐dependent ecosystems

2020 ◽  
Vol 30 (8) ◽  
pp. 1483-1504 ◽  
Author(s):  
Simone Fattorini ◽  
Barbara Fiasca ◽  
Tiziana Di Lorenzo ◽  
Mattia Di Cicco ◽  
Diana M. P. Galassi
Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2574 ◽  
Author(s):  
Giovanni Strona ◽  
Simone Fattorini ◽  
Barbara Fiasca ◽  
Tiziana Di Lorenzo ◽  
Mattia Di Cicco ◽  
...  

We introduce a suite of software tools aimed at investigating multiple bio-ecological facets of aquatic Groundwater Dependent Ecosystems (GDEs). The suite focuses on: (1) threats posed by pollutants to GDE invertebrates (Ecological Risk, ER); (2) threats posed by hydrological and hydromorphological alterations on the subsurface zone of lotic systems and groundwater-fed springs (Hydrological-Hydromorphological Risk, HHR); and (3) the conservation priority of GDE communities (Groundwater Biodiversity Concern index, GBC). The ER is assessed by comparing tolerance limits of invertebrate species to specific pollutants with the maximum observed concentration of the same pollutants at the target site(s). Comparison is based on an original, comprehensive dataset including the most updated information on tolerance to 116 pollutants for 474 freshwater invertebrate species. The HHR is assessed by accounting for the main direct and indirect effects on both the hyporheic zone of lotic systems and groundwater-fed springs, and by scoring each impact according to the potential effect on subsurface invertebrates. Finally, the GBC index is computed on the basis of the taxonomical composition of a target community, and allows the evaluation of its conservation priority in comparison to others.


2021 ◽  
Vol 124 ◽  
pp. 553-566
Author(s):  
Yi Wang ◽  
Xiaofeng Wang ◽  
Lichang Yin ◽  
Xiaoming Feng ◽  
Chaowei Zhou ◽  
...  

2009 ◽  
Vol 30 (3) ◽  
pp. 341-350 ◽  
Author(s):  
Laza Andriamandimbiarisoa ◽  
Christopher Raxworthy ◽  
Kristopher Karsten ◽  
Stanley Fox

AbstractMadagascar is a high conservation priority. Rainforests receive most of the focus, but the dry deciduous and spiny forests of south-western Madagascar house many endemics, are under high deforestation pressure, and remain largely unprotected. Charismatic vertebrates, like chameleons, face a secondary threat: harvesting for the commercial pet trade. Six chameleons inhabit the arid southwest near Toliara: Furcifer antimena, F. belalandaensis, F. labordi, F. lateralis, F. oustaleti, and F. verrucosus. We measured population densities of three of those species. Furcifer verrucosus has a large distribution, was dense (97.7 ha–1; 95% CI = 60.2-158.6), and inhabited forests and anthropogenic habitats. Furcifer labordi was much less dense (30.8 ha–1; 13.4-70.9), has a restricted range, and has a unique life history that makes it susceptible to perturbations from deforestation or illegal harvesting. Furcifer antimena was the least dense (17.0 ha–1; 9.3-30.9) and has an even smaller distribution range. We lack density data for F. lateralis, but this species was abundant in anthropogenic habitats. Within their respective ranges, there are currently no protected areas for F. antimena and only few for F. labordi; these two species are far less abundant than the more widely spread F. verrucosus. We recommend that high conservation priority be focused on F. antimena and the southern populations of F. labordi due to their restricted distributions, susceptibility to extirpation, lower population densities, and lack of formal protection. Establishing protected areas in the Ranobe region and north of the Fiherenana River, in the Belalanda region, would help protect important populations of these vulnerable species.


Author(s):  
Suresh A. Sethi ◽  
Joshua Ashline ◽  
Bradley P. Harris ◽  
Jonathon Gerken ◽  
Felipe Restrepo

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