The effectiveness of surrogate taxa to conserve freshwater biodiversity

Stewart, David R.; Underwood, Zachary E.; Rahel, Frank J.; Walters, Annika W.

doi:10.1111/cobi.12967

Cited by 26 publications

(21 citation statements)

References 42 publications

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“…Another strategy was followed by Sealey et al (2014), who estimated cumulative impact scores in coastal ecosystems due to physical restructuring, destructive uses, coastal development, and alien plant invasions, evaluating high-score areas as non-priority for conservation actions. One approach followed by some studies was to integrate alien species in the cost function of MARXAN (Hermoso et al, 2011(Hermoso et al, , 2013Lawrence et al, 2011) or ZONATION (Stewart et al, 2017), which was aimed to be minimized in the prioritization process. Specifically, Hermoso et al (2011) modeled the distribution of alien freshwater fish in the study area and used the modeled abundance as a surrogate of the cost of management actions to control invasive alien species.…”

Section: Approaches Applied To Address Biological Invasions In Consermentioning

confidence: 99%

“…Tallis et al (2008) estimated cumulative threat indices that included invasive alien species among a number of both terrestrial and marine threats, and incorporated them in the cost function of MARXAN to prioritize terrestrial and marine sites in a cross-environment conservation planning case study. Stewart et al (2017), in addition to prioritizing watersheds based on species presence, developed cost layers representing human threats (land use) and the presence of alien fish. The cost layers were used to down-weigh native species occurrences.…”

Section: Approaches Applied To Address Biological Invasions In Consermentioning

confidence: 99%

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Biological Invasions in Conservation Planning: A Global Systematic Review

et al. 2018

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Biological invasions threaten biodiversity in terrestrial, freshwater and marine ecosystems, requiring substantial conservation and management efforts. To examine how the conservation planning literature addresses biological invasions and if planning in the marine environment could benefit from experiences in the freshwater and terrestrial systems, we conducted a global systematic review. Out of 1,149 scientific articles mentioning both "conservation planning" and "alien" or any of its alternative terms, 70 articles met our selection criteria. Most of the studies were related to the terrestrial environment, while only 10% focused on the marine environment. The main conservation targets were species (mostly vertebrates) rather than habitats or ecosystems. Apart from being mentioned, alien species were considered of concern for conservation in only 46% of the cases, while mitigation measures were proposed in only 13% of the cases. The vast majority of the studies (73%) ignored alien species in conservation planning even if their negative impacts were recognized. In 20% of the studies, highly invaded areas were avoided in the planning, while in 6% of the cases such areas were prioritized for conservation. In the latter case, two opposing approaches led to the selection of invaded areas: either alien and native biodiversity were treated equally in setting conservation targets, i.e., alien species were also considered as ecological Mačić et al. Biological Invasions in Conservation Planning features requiring protection, or more commonly invaded sites were prioritized for the implementation of management actions to control or eradicate invasive alien species. When the "avoid" approach was followed, in most of the cases highly impacted areas were either excluded or invasive alien species were included in the estimation of a cost function to be minimized. Most of the studies that followed a "protect" or "avoid" approach dealt with terrestrial or freshwater features but in most cases the followed approach could be transferred to the marine environment. Gaps and needs for further research are discussed and we propose an 11-step framework to account for biological invasions into the systematic conservation planning design.

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Section: Approaches Applied To Address Biological Invasions In Consermentioning

confidence: 99%

Section: Approaches Applied To Address Biological Invasions In Consermentioning

confidence: 99%

Biological Invasions in Conservation Planning: A Global Systematic Review

et al. 2018

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“…Our results imply that spatial‐environmental contextualization at least be carefully considered when extracting indicator species for conservation purposes, complementing other types of context study of indicator species (e.g., Tulloch et al, ). Sample classification schemes involving regionalization and typology (e.g., Herlihy, et al, ; Stoddard, ) could enhance species potential for indicating biodiversity loss/status, ecological disturbance, environmental change, and management progress (Stewart et al, ; Wiens et al, ; Zettler et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…However, as with any conservation surrogate (Kati et al, 2004;Lindenmayer et al, 2015), effective application of indicator species may require context. Spatial-environmental heterogeneity can make it difficult to attribute changes in ecological responses to natural versus anthropogenic forces (Fratterigo & Rusack, 2008), or to apply taxonomic surrogates for biodiversity assessment (Stewart, Underwood, Rahel, & Walters, 2018). One way to reduce the effect of heterogeneity is to stratify samples geographically or into environmentally similar groups (Stoddard, 2005).…”

Section: Introductionmentioning

confidence: 99%

Enhanced indicator species performance with increasing contextualization

Bried

Fouts

Jog

2019

Conservat Sci and Prac

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Indicator species need context to perform optimally for conservation purposes. If indicator potential is context‐dependent, then indicators should improve with increasing spatial‐environmental stratification. We tested this hypothesis by hierarchically stratifying a species combinations matrix (plants and wetlands) using regionalization and site typology and analyzing class specificity and occupancy rate for indicators shared across strata. Performance of indicators collectively improved with increased sample stratification providing greater spatial‐environmental context. Carefully considered sample classification schemes could strengthen the value of indicator species for monitoring biodiversity loss, environmental change, and management progress. However, the better accuracy of context‐specific indicators will have to be weighed against the practical need for fewer broad‐based indicators.

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“…Efforts to quantitatively identify umbrella species from among multiple candidate taxa (Caro and O'Doherty, 1999;Fleishman et al, 2000;Maslo et al, 2016;Stewart et al, 2017) often focus solely on contrasting spatial overlap identified using potentially incomplete sets of environmental predictors (Andelman and Fagan, 2000;Seddon and Leech, 2008). Despite past mixed success of using umbrella species for conservation planning (e.g., successful: Fleishman et al, 2000;Roth and Weber, 2007;Suter et al, 2002, unsuccessful: Launer andMurphy, 1994;Ozaki et al, 2006), the concept continues to improve by broadening to encompass both taxonomic and functional diversity (Sattler et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

A review of Bayesian belief network models as decision-support tools for wetland conservation: Are water birds potential umbrella taxa?

MacPherson

Webb

Raedeke

et al. 2018

Biological Conservation

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Creative approaches to identifying umbrella species hold promise for devising effective surrogates of ecological communities or ecosystems. However, mechanistic niche models that predict range or habitat overlap among species may yet lack development. We reviewed literature on taxon-centered Bayesian belief network (BBN) models to explore a novel approach to identify umbrella taxa identifying taxonomic groups that share the largest proportion of habitat requirements (i.e., states of important habitat variables) with other wetland-dependent taxa. We reviewed and compiled published literature to provide a comprehensive and reproducible account of the current understanding of habitat requirements for freshwater, wetland-dependent taxa using BBNs. We found that wetland birds had the highest degree of shared habitat requirements with other taxa, and consequently may be suitable umbrella taxa in freshwater wetlands. Comparing habitat requirements using a BBN approach to build species distribution models, this review also identified taxa that may not benefit from conservation actions targeted at umbrella taxa by identifying taxa with unique habitat requirements not shared with umbrellas. Using a standard node set that accurately and comprehensively represents the ecosystem in question, BBNs could be designed to improve identification of umbrella taxa. In wetlands, expert knowledge about hydrology, geomorphology and soils could add important information regarding physical landscape characteristics relevant to species. Thus, a systems-oriented framework may improve overarching inferences from BBNs and subsequent utility to conservation planning and management.

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The effectiveness of surrogate taxa to conserve freshwater biodiversity

Abstract: Establishing protected areas has long been an effective conservation strategy and is often basedPalabras Clave: biogeografía, diseño de reservas, planeación de la conservación, sustitutos

Cited by 26 publications

References 42 publications

Biological Invasions in Conservation Planning: A Global Systematic Review

Biological Invasions in Conservation Planning: A Global Systematic Review

Enhanced indicator species performance with increasing contextualization

A review of Bayesian belief network models as decision-support tools for wetland conservation: Are water birds potential umbrella taxa?

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