The influence of habitat availability and landscape structure on the distribution of wood cricket (Nemobius sylvestris) on the Isle of Wight, UK

Brouwers, Niels; Newton, Adrian C.

doi:10.1007/s10980-008-9298-4

Cited by 19 publications

(19 citation statements)

References 42 publications

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“…When new habitat becomes available for colonisation, species whose primary occurrences have more of the new habitats nearby can have advantages for expansion of their distribution into the new habitats [37]. The positive influence of historical habitat availability on grassland species richness was found in Estonian islands [38] and wood cricket populations in the UK were mainly found in woodland fragments situated closely to another occupied site [39]. However, the positive influence of habitat availability on species re-distribution was not supported by our study, in which the availability of secondary open habitat was unrelated to the proportion of secondary open habitat occupied by the species (Fig.…”

Section: Discussionmentioning

confidence: 99%

Can we predict which species win when new habitat becomes available?

Nomura¹,

OhlemuÌˆller²,

Lee

et al. 2019

Preprint

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Land cover change is a key component of anthropogenic global environmental change, contributing to changes in environmental conditions of habitats. These changes can lead to the redistribution of species and shifts in the functional composition and properties of ecosystems. Deforestation is globally the most widespread anthropogenically driven land cover change leading to conversion from closed forest to open non-forest habitat. The consequences of these functional habitat changes on species distributions are only poorly understood. This study investigates the relative roles of geographic features, species climatic niche characteristics and species traits in determining the ability of open-habitat plant species to take advantage of recently opened habitats. We use current occurrence records of 18 herbaceous, predominantly open-habitat species of the genus Acaena (Rosaceae) to determine their prevalence in recently opened habitat. Geographic features of the spatial distribution of open habitat, species’ climatic niche characteristics, and species traits related to dispersal were tested their correlation with species’ prevalence in anthropogenically opened habitat. While primary open habitat (naturally open) was characterised by cold climates, secondary open habitat (naturally closed but anthropogenically opened) is characterised by warmer and wetter conditions. We found high levels of variation in the prevalence of secondary open habitat among the investigated species indicating differences between species in their ability to colonise newly opened habitat. For the species investigated, geographical and climatic niche factors showed generally stronger relationships with species’ prevalence in secondary open habitat than functional traits did. For small herbaceous species, geographical and environmental factors appear to be more important than species functional traits for facilitating expansion into secondary open habitats. Our results suggested that the land cover change might have triggered the shifts of factors controlling open-habitat plant distributions from the competition with forest trees to current environmental constraints.

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Section: Discussionmentioning

confidence: 99%

Can we predict which species win when new habitat becomes available?

Nomura¹,

OhlemuÌˆller²,

Lee

et al. 2019

Preprint

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“…[21], [30]). In their comprehensive review, Prugh et al [8] found stronger effects of distance to the nearest occupied source patch, a demographic isolation measure, on patch occupancy than of distance to nearest habitat patch of any size and distance to nearest large patch, two measures of landscape isolation.…”

Section: Discussionmentioning

confidence: 99%

“…In contrast, no relationship was predicted between the occurrence of the field cricket, a species avoiding wet habitats [20], and distance of a patch to water. Finally, we expected positive relationships between the occurrence of both species and the age of the patch, as patch age has been shown to positively affect occurrence patterns in wood crickets ( Nemobius sylvestris ) [21]. Alternatively, the suitability of a patch may increase over the first years and then decrease again with ongoing succession.…”

Section: Introductionmentioning

confidence: 98%

Habitat Quality and Geometry Affect Patch Occupancy of Two Orthopteran Species

et al. 2013

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Impacts of habitat loss and fragmentation on distribution and population size of many taxa are well established. In contrast, less is known about the role of within-patch habitat quality for the spatial dynamics of species, even though within-patch habitat quality may substantially influence the dynamics of population networks. We studied occurrence patterns of two Orthopteran species in relation to size, isolation and quality of habitat patches in an intensively managed agricultural landscape (16.65 km2) in the Swiss lowland. Occurrence of field crickets (Gryllus campestris) was positively related to patch size and negatively to the distance to the nearest occupied patch, two measures of patch geometry. Moreover, field crickets were more likely to occur in extensively managed meadows, meadows used at low intensity and meadows dominated by Poa pratensis, three measures of patch quality. Occurrence of the large gold grasshopper (Chrysochraon dispar) was negatively related to two measures of patch geometry, distance to the nearest occupied patch and perimeter index (ratio of perimeter length to patch area). Further, large gold grasshoppers were more likely to occupy patches close to water and patches with vegetation left uncut over winter, two measures of patch quality. Finally, examination of patch occupancy dynamics of field crickets revealed that patches colonized in 2009 and patches occupied in both 2005 and 2009 were larger, better connected and of other quality than patches remaining unoccupied and patches from which the species disappeared. The strong relationships between Orthopteran occurrence and aspects of patch geometry found in this study support the “area-and-isolation paradigm”. Additionally, our study reveals the importance of patch quality for occurrence patterns of both species, and for patch occupancy dynamics in the field cricket. An increased understanding of patch occupancy patterns may be gained if inference is based on variables related to both habitat geometry and quality.

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“…Early researchers used Euclidean distance between patches to quantify isolation and its inverse connectivity (e.g., Hanski 1994). Euclidean distance remains one of the most widespread measures of isolation (Brosi 2009), but the measure has been refined by, for example, the consideration of only large patches (Cherkaoui et al 2009) or of patches occupied by target species (Brouwers & Newton 2009). Several authors warn against measuring Euclidean distance alone (Moilanen & Nieminen 2002) because functional connectivity may depend on factors other than distance, such as the size and shape of patches (e.g., Bender et al 2003; Prugh 2009) and characteristics of the matrix (i.e., nonforested areas surrounding patches of native forest) between patches (Ricketts 2001).…”

Section: Introductionmentioning

confidence: 99%

Effects of Matrix Characteristics and Interpatch Distance on Functional Connectivity in Fragmented Temperate Rainforests

Magrach

Larrinaga

Santamarı́a

2012

Conservation Biology

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The connectivity of remnant patches of habitat may affect the persistence of species in fragmented landscapes. We evaluated the effects of the structural connectivity of forest patches (i.e., distance between patches) and matrix class (land-cover type) on the functional connectivity of 3 bird species (the White-crested Elaenia [Elaenia albiceps], the Green-backed Firecrown Hummingbird [Sephanoides sephaniodes], and the Austral Thrush [Turdus falklandii]). We measured functional connectivity as the rate at which each species crossed from one patch to another. We also evaluated whether greater functional connectivity translated into greater ecological connectivity (dispersal of fruit and pollen) by comparing among forest patches fruit set of a plant pollinated by hummingbirds and abundance of seedlings and adults of 2 plants with bird- and wind-dispersed seeds. Interpatch distance was strongly associated with functional connectivity, but its effect was not independent of matrix class. For one of the bird-dispersed plants, greater functional connectivity for White-crested Elaenias and Austral Thrushes (both frugivores) was associated with higher densities of this plant. The lack of a similar association for the wind-dispersed species suggests this effect is linked to the dispersal vector. The abundance of the hummingbird-pollinated species was not related to the presence of hummingbirds. Interpatch distance and matrix class affect animal movement in fragmented landscapes and may have a cascading effect on the distribution of some animal-dispersed species. On the basis of our results, we believe effort should be invested in optimizing patch configuration and modifying the matrix so as to mitigate the effects of patch isolation in fragmented landscapes.

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The influence of habitat availability and landscape structure on the distribution of wood cricket (Nemobius sylvestris) on the Isle of Wight, UK

Cited by 19 publications

References 42 publications

Can we predict which species win when new habitat becomes available?

Can we predict which species win when new habitat becomes available?

Habitat Quality and Geometry Affect Patch Occupancy of Two Orthopteran Species

Effects of Matrix Characteristics and Interpatch Distance on Functional Connectivity in Fragmented Temperate Rainforests

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