Temporary wetlands: challenges and solutions to conserving a ‘disappearing’ ecosystem

Calhoun, Aram J. K.; Mushet, David; Bell, Kathleen P.; Boix, Dani; Fitzsimons, James; Isselin-Nondedeu, Françis

doi:10.1016/j.biocon.2016.11.024

Cited by 194 publications

(174 citation statements)

References 84 publications

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“…This has implications for habitat availability (Boschilia et al, 2008;Calhoun et al, 2017), agricultural productivity (Mokrech et al, 2008;Gornall et al, 2010), and hydrologic connectivity Ameli and Creed, 2017). This study demonstrated that not only is surface water extent variable across landscapes, but shifts in climate patterns will have an uneven effect on surface water extent across these different landscapes.…”

Section: Resultsmentioning

confidence: 69%

“…Accurate predictions regarding the effect of climate change on surface water quantity will require consideration of hydrology-related landscape characteristics including wetland storage and arrangement. (Boschilia et al, 2008;Calhoun et al, 2017), hydrologic connectivity (Heiler et al, 1995;Pringle, 2001), and agricultural productivity (Mokrech et al, 2008;Gornall et al, 2010). Natural variability in surface water extent, however, makes gathering timely, accurate information, a challenge (Poff et al, 1997;Beeri and Phillips, 2007).…”

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confidence: 99%

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Wetlands inform how climate extremes influence surface water expansion and contraction

Vanderhoof

Lane

McManus

et al. 2018

Hydrol. Earth Syst. Sci.

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Abstract. Effective monitoring and prediction of flood and drought events requires an improved understanding of how and why surface water expansion and contraction in response to climate varies across space. This paper sought to (1) quantify how interannual patterns of surface water expansion and contraction vary spatially across the Prairie Pothole Region (PPR) and adjacent Northern Prairie (NP) in the United States, and (2) explore how landscape characteristics influence the relationship between climate inputs and surface water dynamics. Due to differences in glacial history, the PPR and NP show distinct patterns in regards to drainage development and wetland density, together providing a diversity of conditions to examine surface water dynamics. We used Landsat imagery to characterize variability in surface water extent across 11 Landsat path/rows representing the PPR and NP (images spanned 1985-2015). The PPR not only experienced a 2.6-fold greater surface water extent under median conditions relative to the NP, but also showed a 3.4-fold greater change in surface water extent between drought and deluge conditions. The relationship between surface water extent and accumulated water availability (precipitation minus potential evapotranspiration) was quantified per watershed and statistically related to variables representing hydrology-related landscape characteristics (e.g., infiltration capacity, surface storage capacity, stream density). To investigate the influence stream connectivity has on the rate at which surface water leaves a given location, we modeled stream-connected and stream-disconnected surface water separately. Stream-connected surface water showed a greater expansion with wetter climatic conditions in landscapes with greater total wetland area, but lower total wetland density. Disconnected surface water showed a greater expansion with wetter climatic conditions in landscapes with higher wetland density, lower infiltration and less anthropogenic drainage. From these findings, we can expect that shifts in precipitation and evaporative demand will have uneven effects on surface water quantity. Accurate predictions regarding the effect of climate change on surface water quantity will require consideration of hydrology-related landscape characteristics including wetland storage and arrangement.

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Section: Resultsmentioning

confidence: 69%

mentioning

confidence: 99%

Wetlands inform how climate extremes influence surface water expansion and contraction

Vanderhoof

Lane

McManus

et al. 2018

Hydrol. Earth Syst. Sci.

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“…; Calhoun et al. ). General principles that have emerged from this study that could inform management of wetlandscapes for amphibians are summarized in Table .…”

Section: Discussionmentioning

confidence: 97%

“…), and migration success is determined by the distribution of wetlands and by the permeability of the terrestrial matrix, both providing resting and foraging habitat for migrating species (Calhoun et al. ). Wetland loss decreases wetland density and increases travel distances for amphibians, simultaneously impacting breeding and migration success (Gibbs ).…”

Section: Introductionmentioning

confidence: 99%

Safeguarding Wetlands and Their Connections within Wetlandscapes to Improve Conservation Outcomes for Threatened Amphibian Species

Zaffaroni

Zamberletti

Creed

et al. 2019

J American Water Resour Assoc

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Wetlands should not be considered as independent objects but as dynamically connected objects, collectively known as wetlandscapes. We developed a framework that analyzes the influences of wetland suitability and connectivity on amphibian distributions. We defined two indices: a Wetland Suitability Index describing wetland quality and a Movement Permeability Index characterizing wetland connectivity for amphibian population dynamics. These indices were calculated from raster datasets and time‐varying inundation estimates. The indices were used to define a wetlandscape and an amphibian model was used to simulate population dynamics within the wetlandscape. The framework was applied to the Nose Creek watershed, a highly modified wetlandscape in Alberta, Canada. Two amphibian species were selected with different habitat preferences: the Northern Leopard Frog that prefers wet habitats and has high mobility over land, and the Great Plains Toad that prefers terrestrial habitats and has low mobility over land. We found each amphibian species had a “preferred” wetlandscape, reflecting their life cycle traits and migration strategies which in turn were dependent on the hydrological and ecological connections within the wetlandscape. This study highlights the importance of investigating both individual wetlands and the wetlandscape and considering both wetland habitat quality and connectivity as non‐substitutable properties that act jointly, but differently, on population dynamics.

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“…, Calhoun et al. ), which have many life‐history strategies for persistence in these spatiotemporally heterogeneous ecosystems (Wiggins et al. , Batzer and Wissinger , De Meester et al.…”

Section: Introductionmentioning

confidence: 99%

Occupancy and environmental responses of habitat specialists and generalists depend on dispersal traits

Kneitel

2018

Ecosphere

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Abstract. Ecologists have been interested in understanding communities through the lens of specialists and generalists to predict species diversity and distribution patterns and to ameliorate worldwide declines in specialist species. Dispersal traits are assumed to be associated with specialization (specialists are weaker dispersers than generalists), but dispersal modes can be variable within groups. Niche-based predictions of occupancy and environmental responses were assessed using invertebrates from California vernal pools that were categorized by specialization (endemic or widespread taxa) and dispersal mode (passive or active dispersal). Data from a latitudinal gradient resulted in widespread taxa with greater percent occupancy than endemic taxa as predicted, but passive dispersers had greater occupancy than active dispersers in contrast to predictions. Endemic species and widespread-active dispersers exhibited similar levels of specialization measured as coefficient of variation among treatments in a mesocosm experiment. This suggested that habitat choice was important, and these differences in specialization were scale dependent (generalists across habitat types and specialists within a habitat type). A negative correlation between latitudinal occupancy and level of specialization demonstrated how local-scale responses and landscape patterns were related and depend on both specialization and dispersal traits. This study underscores how habitat heterogeneity and species traits, including specialization and dispersal, can interact to affect community patterns at different spatial scales.

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Temporary wetlands: challenges and solutions to conserving a ‘disappearing’ ecosystem

Cited by 194 publications

References 84 publications

Wetlands inform how climate extremes influence surface water expansion and contraction

Wetlands inform how climate extremes influence surface water expansion and contraction

Safeguarding Wetlands and Their Connections within Wetlandscapes to Improve Conservation Outcomes for Threatened Amphibian Species

Occupancy and environmental responses of habitat specialists and generalists depend on dispersal traits

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