Empirical Evidence for Metapopulation Dynamics

Harrison, Susan; Taylor, Andrew D.

doi:10.1016/b978-012323445-2/50004-3

Cited by 347 publications

(432 citation statements)

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“…This version of the theory has been widely explored in relation to relatively mobile invertebrate species such as butterflies (Hanski 2004). For relatively immobile species such as wood cricket, other conceptions of metapopulations such as 'patchy populations' are likely to be more realistic, as scope for recolonisation following extinction is likely to be limited (Harrison 1994;Harrison and Taylor 1997). Similarly to habitat-specialist beetle species (Driscoll 2005), the results of this study suggest that individual woodlands function as distinct islands operating as more-or-less closed systems within the agricultural matrix.…”

Section: Discussionmentioning

confidence: 99%

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

Brouwers

Newton

2008

Landscape Ecol

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Manuscript word count: 7291 2 AbstractLittle information is available regarding the landscape ecology of woodland invertebrate species with limited dispersal ability. An investigation was therefore conducted within woodland fragments in an agricultural landscape for the flightless wood cricket (Nemobius sylvestris) on the Isle of Wight, UK. The current pattern of distribution of the species, established during a field survey, was related to measures of habitat availability and habitat isolation/fragmentation. Results revealed that wood cricket populations were patchily distributed and mainly found in relatively large mature woodland fragments situated closely (<50 m) to another occupied site. Although the occurrence of wood cricket was related to fragment area, isolation, habitat availability and woodland age, a logistic regression model revealed that presence of the species was most accurately predicted by fragment isolation and area alone. These results highlight the vulnerability of relatively immobile woodland invertebrate species, such as wood cricket, to the potential negative impacts of habitat fragmentation.Keywords: woodland; forest; habitat availability; fragmentation; landscape scale; invertebrate; insect; wood cricket; Nemobius sylvestris; Isle of Wight. IntroductionIn recent years, many habitats and species have been subjected to increasing anthropogenic pressures. Activities such as agricultural intensification and exploitation of natural resources have resulted in substantial habitat loss and fragmentation (e.g. Forman and Godron 1986;Andrén 1994), which are increasingly being recognised as principal drivers of biodiversity loss worldwide (Hanski 1998;Fahrig 2003). These effects are typically evident at the landscape scale, with many landscapes now being characterised by a mosaic of different agricultural land use types with fragments of native habitat embedded within them (e.g. Peterken 2000; Newton 2007).In fragmented landscapes, the distribution and abundance of species is commonly influenced by the quality and amount of habitat available within individual habitat fragments, and the spatial configuration of fragments within the landscape (Andrén 1994;Fahrig 2003). In terrestrial environments, the factors most commonly examined in relation to patterns of species diversity at the landscape scale are measures of fragment or patch area and connectivity. A substantial body of literature is now available documenting the influence of these factors (Andrén 1994;Mazerolle and Villard 1999;Bennett 1999Bennett , 2003Ewers and Didham 2006;Bailey 2007). Many studies have recorded a positive relationship between species diversity and fragment area and a negative relationship between diversity and the degree of isolation, consistent with island biogeography theory Wilson 1963, 1967). However, these relationships vary in their precise response and degree of significance among and within different taxonomic groups, primarily because of variation in habitat specialisation and the level of permeability of the m...

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Section: Discussionmentioning

confidence: 99%

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

Brouwers

Newton

2008

Landscape Ecol

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“…Furthermore, in a study on a beetle species (Bolitophagus reticulatus) living in dead fungus fruiting bodies found on old/dying trees, again isolation had a negative influence on presence of the species in distinct habitat locations within woodlands (Rukke and Midtgaard 1998). On the basis of this relationship, Rukke and Midtgaard (1998) argued that this species demonstrates a habitat-tracking metapopulation structure (Harrison and Taylor 1997). Because of the successional dynamics of the habitat locations (i.e.…”

Section: Logistic Regression Analysismentioning

confidence: 99%

Habitat requirements for the conservation of wood cricket (Nemobius sylvestris) (Orthoptera: Gryllidae) on the Isle of Wight, UK

Brouwers

Newton

2008

J Insect Conserv

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“…Nevertheless, the GLM isolation model had one of the highest deviance (44.28%) and cannot be discarded. Given these conditions, we believe that the R. temporaria population studied by us has a 'patchy population' character (Harrison and Taylor, 1997). The two other species of amphibians present in the area occur together with R. temporaria, and their presence can thus be considered an indicator of a quality aquatic habitat for breeding.…”

Section: Discussionmentioning

confidence: 99%

Aquatic habitat use by amphibians with specific reference toRana temporariaat high elevations (Retezat Mountains National Park, Romania)

Cogălniceanu

Băncilă

Plăiaşu

et al. 2012

Ann. Limnol. - Int. J. Lim.

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-Alpine areas are extreme habitats that require special adaptations and involve major trade-offs in terms of life history. Amphibians have the ability to adapt both their life history and developmental traits to alpine environments. Temperate amphibians depend on the quality and availability of aquatic habitats for reproduction. We explored the aquatic habitat used by amphibians in the alpine area of Retezat Mountains, Southern Carpathians, Romania. We surveyed 40 aquatic habitats in a 380 ha area delimited by mountain crests and drained by a steep valley. Each aquatic habitat was characterized using 10 environmental variables. Only three amphibian species occur at elevations above 1900 m, the most widespread being the Common Frog Rana temporaria. The Common Frog showed preference for breeding aquatic habitats, the variables of importance being altitude, solar radiation, water chemistry and grazing. Higher elevation and lower solar radiation decreased frog occurrence, while the impact of grazing favored the use of water bodies. Acidification is eminent in the area with pH dropping below 5 in 20% of the water bodies. Overall, amphibian occurrence in alpine area can be partly explained by the characteristics of aquatic habitats.

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Empirical Evidence for Metapopulation Dynamics

Cited by 347 publications

References 0 publications

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

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

Habitat requirements for the conservation of wood cricket (Nemobius sylvestris) (Orthoptera: Gryllidae) on the Isle of Wight, UK

Aquatic habitat use by amphibians with specific reference toRana temporariaat high elevations (Retezat Mountains National Park, Romania)

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