Pond conservation: towards a delineation of pondscape

Boothby, John

doi:10.1002/(sici)1099-0755(199706)7:2<127::aid-aqc224>3.0.co;2-6

Cited by 47 publications

(22 citation statements)

References 13 publications

(10 reference statements)

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“…Jeffries, 1994;Briers & Warren, 2000) and supports the need for an awareness of the landscape scale in the conservation and management of ponds e.g. Biggs et al, (1994), Boothby (1997b). If the results hold true for most pond invertebrates in temperate countries then the conservation and management of ponds will require attention to both the distribution of ponds in the landscape, for example the number, distance between, area, permanence but also the range of patch habitat quality.…”

Section: Discussionmentioning

confidence: 62%

“…The significance of the spatial arrangement of ponds in the landscape for wildlife is now much better understood. Boothby (1997b) coined the term pondscape to encapsulate this scale. Examples from throughout Europe suggest that the spatial geometry of ponds and the nature of the surrounding landscapes affect pond quality, species' distributions and dynamics (Collinson et al, 1995, Glandt & Heinrich, 1999 and should be accounted for in the development of pond conservation strategies.…”

Section: Introductionmentioning

confidence: 99%

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Local-scale turnover of pond insects: intra-pond habitat quality and inter-pond geometry are both important

Jeffries

2005

Hydrobiologia

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The distributions of larvae of seven species of pond insect were recorded from 30 small, adjacent temporary ponds over the course of three years. Incidences were modelled using logistic regression to compare the effectiveness of measures of intra-patch habitat or inter-patch geometry as predictors of distribution. Incidence, extinction and colonisation were modelled separately against systematic environmental variation (e.g. length of dry phase), temporal change (e.g. year) and individual pond characteristics as predictors of presence or absence. Models of incidence created for all species were dominated by negative correlations to the length of preceding summer's dry-phase, positive correlations with length of flood links between ponds and species-specific changes with year. Models of colonisation and extinction events suggested that colonisation and extinction may be driven by different factors. The results suggest that both intra-pond habitat and inter-pond geometry affect the distribution of pond insects. The conservation of pond invertebrates will require strategic policy attentive to both aspects of pond invertebrates' ecology, rather than relying on ad hoc, site by site interventions.

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Section: Discussionmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Local-scale turnover of pond insects: intra-pond habitat quality and inter-pond geometry are both important

Jeffries

2005

Hydrobiologia

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“…There have been few investigations into the role of space in determining the species composition of macroinvertebrate communities. Temporary ponds rarely occur in isolation, but exist scattered in a landscape together with permanent and semi‐permanent waters (Boothby 1997). As such, the spatial distribution of ponds might be expected to impact on the species composition of assemblages of aquatic invertebrates.…”

mentioning

confidence: 99%

Distribution of selected macroinvertebrates in a mosaic of temporary and permanent freshwater ponds as explained by autologistic models

Sanderson

Eyre²,

Rushton³

2005

Ecography

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2005. Distribution of selected macroinvertebrates in a mosaic of temporary and permanent freshwater ponds as explained by autologistic models. Á/ Ecography 28: 355 Á/362.We investigated the aquatic macroinvertebrate fauna of 76 ponds and small pools in an urban fringe landscape, and related the presence of ten species to measures of water permanence, pond area and environmental conditions using logistic models. The incidence of all the species was strongly associated with variation in hydroperiod, but patterns were more variable with the other explanatory variables. To determine whether the presence of a species at neighbouring ponds increased its probability of occurance at a pond we constructed a series of autologistic models, that differed from the aspatial logistic model in that they included a spatial autocovariate in the predictor terms. The improvement of model fit on inclusion of this autocovariate, measured as the decline in deviance compared to the aspatial models, was determined across a range of lag distances. In seven of the ten species, the autologistic models explained the incidence of the species amongst the ponds better than the aspatial models. Spatial effects were typically over short distances ( B/200 m) before declining, but in two species appeared to reach an asymptote, and we propose that variation in dispersal ability is the most likely factor producing these spatial effects. We conclude that it is essential that some measure of spatial autocorrelation is considered when evaluating the distribution of aquatic macroinvertebrates at small or medium scales. R. A. Sanderson (r.a.sanderson@newcastle.ac.uk), M. D. Eyre and S. P. Rushton, Inst. for Research in Environment and Sustainability, Devonshire Bldg, Univ. of Newcastle, Newcastle upon Tyne, UK NE1 7RU.

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“…Similarly, a potentially viable pond network for R. dalmatina could, as a minimum, have a mean network resistance below 30, include fish‐less ponds separated by <200 m, and be immediately surrounded by more than 20% of woody areas. Finally, in the case of L. vulgaris , one should favour patchy networks in more open areas with inter‐pond distances not exceeding 800 m. These simple statements allow us to highlight the threshold values that could be used as general guidance to orientate pondscape (Boothby, ) management in agricultural areas according to a network strategy.…”

Section: Discussionmentioning

confidence: 98%

Cross‐scale effects of structural and functional connectivity in pond networks on amphibian distribution in agricultural landscapes

et al. 2019

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Connectivity in pond ecosystems is essential for amphibian population persistence. To test the role of connectivity, a diversity of scales accounting for the different processes underlying species distribution needs to be considered. Several approaches exist for accounting for the potential connectivity, mainly based on structural versus functional methods. Based on occupancy data, our aim was to assess the relative power of connectivity metrics in explaining amphibian distribution when accounting for cross‐scale effects from pond to network scales, and to identify network features relevant to amphibian conservation in agricultural landscapes in the Seine‐et‐Marne department (east of Paris, France). We propose an original analytical framework that allows examining different spatial scales of influence, with a focus on connectivity. We analyse the distribution of three amphibian species (Bufo bufo, Rana dalmatina, and Lissotriton vulgaris) in relation to various pond conditions (fish presence, water quality, and nearby woodland habitat) as well as connectivity using three connectivity approaches: (1) structural, (2) area‐functional based on potential migration areas, and (3) path‐functional based on the least accumulated cost paths. Values of landscape resistance were assigned according to a biological risk‐based approach that is proposed as an enhanced, transparent expert‐based approach. We further investigated cross‐scale effects in amphibian responses to the environment by assessing the relative importance of pond and network characteristics as well as their interactions. Despite some species‐specific characteristics, the area‐functional approach of connectivity was generally the most effective in explaining species distribution by emphasising the relevance of potential migration areas as conservation units. Although pond conditions usually had a greater influence than network connectivity, we highlighted important cross‐scale and threshold effects in species’ response to local conditions, to pond connectivity, and to the availability of potentially suitable terrestrial habitats in the networks. Our cross‐scale approach accounts for scale‐dependent processes that potentially underlie amphibian distribution such as habitat selection and metapopulation dynamics. Both structural and functional connectivity should be considered as complementary features of pond connectivity when dispersal traits are likely to be less limiting. From a management perspective, our results encourage conservation plans to combine functional network‐centred strategies with the preservation of local conditions. We give guidelines as to the features of such networks to help maintain amphibian populations in agricultural landscapes.

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Pond conservation: towards a delineation of pondscape

Cited by 47 publications

References 13 publications

Local-scale turnover of pond insects: intra-pond habitat quality and inter-pond geometry are both important

Local-scale turnover of pond insects: intra-pond habitat quality and inter-pond geometry are both important

Distribution of selected macroinvertebrates in a mosaic of temporary and permanent freshwater ponds as explained by autologistic models

Cross‐scale effects of structural and functional connectivity in pond networks on amphibian distribution in agricultural landscapes

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