Tackling degradation of a seminatural landscape: options and evaluations

Boothby, John

doi:10.1002/ldr.551

Cited by 15 publications

(5 citation statements)

References 12 publications

(8 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, due to their small size, ponds are prone to destruction and to increased isolation through structural changes in the surrounding landscape (Boothby 2003). The pond loss we recorded amounts to 3.5% per year (Curado et al 2011).…”

Section: Population Developmentsmentioning

confidence: 79%

Amphibian decline, pond loss and reduced population connectivity under agricultural intensification over a 38 year period

et al. 2017

View full text Add to dashboard Cite

Habitat loss, together with less obvious land-use changes such as intensified farming practice, can have significant adverse impacts on biodiversity. An important factor in determining the ability of species to cope with such changes is their potential to sustain a populations network by dispersal across the landscape. Habitat quality and structure are particularly important for surface-dwelling species with low dispersal abilities, such as amphibians. To assess this ecological function, ponds in a coastal and typically rural area of northern France were surveyed for amphibians in 1974, 1992 and 2011. These repeated surveys yielded different outcomes for different species groups. Three rare species persisted in more or less specialized habitat types. Two moderately common species declined, but kept strongholds in coastal dunes and associated marshes. Five common species with broad ecological niches remained equally widespread. The Northern crested newt declined markedly and the Midwife toad declined dramatically, as did their breeding habitats in vegetated ponds and cattle drinking troughs. One species, the Moor frog, may have gone locally extinct. A model of relative resistance to amphibian dispersal was created for different landscape types, on a scale from 0 (low resistance) to 1 (high resistance). This generated values of 0.23 for pasture, 0.72 for arable and 0.98 for urban and transport. As pasture declined in the study area, while arable and urban/transport infrastructure increased, amphibian dispersal became more difficult. However, dispersal paths proved difficult to evaluate in a patchy landscape like the one surveyed, due to a paucity of spatial 123Biodivers Conserv (2017) 26:1411-1430 DOI 10.1007/s10531-017-1307 signal. Pond loss is a more tractable reason for the observed amphibian species decline than is the quality of intervening terrestrial habitat matrix. In 2011, 22 newly created ponds had species richness in line with pre-existing ponds and this will have counteracted a dwindling metapopulation structure, indicating that habitat creation/restoration can play a valuable role in conservation. The colonization of new ponds may also prove more informative for gauging the potential for amphibian dispersal in the landscape than the preceding decline.

show abstract

Section: Population Developmentsmentioning

confidence: 79%

Amphibian decline, pond loss and reduced population connectivity under agricultural intensification over a 38 year period

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Despite their high abundance and the fact that they can support unique floral and faunal elements, these small ecosystems have only recently been recognized as important habitats for the maintenance of biodiversity (Armitage et al, 2003;Nicolet et al, 2004;Biggs et al, 2005;Oertli et al, 2005). In many regions these small and hence vulnerable types of water bodies are highly threatened due to eutrophication, pollution or physical destruction (Boothby, 2003). Pools, ponds, and ditches differ from lakes and rivers in many aspects (Oertli et al, 2002;Søndergaard et al, 2005) and can therefore be expected to be affected by anthropogenic stress in different ways and at different spatial scales (Allan et al, 2004;Declerck et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

A comparative analysis of cladoceran communities from different water body types: patterns in community composition and diversity

et al. 2007

View full text Add to dashboard Cite

To develop strategies for the management and protection of aquatic biodiversity in water bodies at the landscape scale, there is a need for information on the spatial organization of diversity in different types of aquatic habitats. In this study, we compared the cladoceran composition and diversity between wheel tracks, pools, ponds, lakes, ditches, and streams, in 18 different areas of Flanders (Belgium). Multivariate analysis revealed significant differences in the composition of cladoceran communities among the different water body types. Average local and total diversity tended to be highest for lakes and lowest for streams. Despite the relatively high number of species supported by lakes, small water bodies seem to contribute considerably more to the total cladoceran richness of an average landscape in Flanders than lakes, because of their high abundance. With respect to biodiversity conservation at the landscape scale, our results point to the importance of maintaining a diversity of water body types of different size, permanence and flow regimes.

show abstract

“…The remaining wetlands, although formed by small water bodies, make an important contribution for the maintenance of the regional biodiversity (Williams et ). However, as they are surrounded by areas with human impact, they are highly threatened with destruction, which intensi es the isolation of the associated biota (Boothby 2003). Landscapes that undergo changes for economic exploitation such as agriculture still maintain the potential of providing resources for some amphibian species (Knutson et al 2004; this study).…”

Section: Discussionmentioning

confidence: 95%

Landscape use and Habitat Configuration Effects on Amphibian Diversity in Southern Brazil Wetlands

Oro,

Moser,

Dalzochio

et al. 2024

Wetlands

View full text Add to dashboard Cite

In this study, we evaluated the effect of changes in natural wetlands on the amphibian diversity in spatial and temporal scales. We sampled 10 wetland sites along oodplains in southern Brazil. We classify the sites as reference or altered ponds according to the preservation degree and presence of human impact.The amphibian monitoring was conducted by calling surveys performed between 2015/2016 using an automated recording system that identi ed the calling male species. We identi ed 23 species, mainly distributed in the families Hylidae (43%) and Leptodactylidae (34.8%). The altered ponds had lower diversity and higher species dominance. Even ponds with the greatest landscape change revealed an expressive resilience concerning the amphibian species composition. However, only Boana pulchella was dominant in altered ponds and B. pulchella and Pseudopaludicola falcipes were dominant in reference ponds. The landscape changes favored the reduction of amphibian richness which was driven by the expansion of the urban area and loss of ooding areas. From 1999 to 2016 all sampled sites had their wetlands reduced is area as the surrounding urban area increased, which is an unfavorable scenario for the maintenance of biodiversity. This diagnosis reveals the combined loss of habitat and reproductive sites of anurans in subtropical wetlands.

show abstract

Tackling degradation of a seminatural landscape: options and evaluations

Cited by 15 publications

References 12 publications

Amphibian decline, pond loss and reduced population connectivity under agricultural intensification over a 38 year period

Amphibian decline, pond loss and reduced population connectivity under agricultural intensification over a 38 year period

A comparative analysis of cladoceran communities from different water body types: patterns in community composition and diversity

Landscape use and Habitat Configuration Effects on Amphibian Diversity in Southern Brazil Wetlands

Contact Info

Product

Resources

About