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Adrian C. Newton - One of the best experts on this subject based on the ideXlab platform.
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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
Landscape Ecology, 2009Co-Authors: Niels C. Brouwers, Adrian C. NewtonAbstract:Little 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 impacts of Habitat loss and fragmentation.
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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
Landscape Ecology, 2009Co-Authors: Niels C. Brouwers, Adrian C. NewtonAbstract:Little 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 (
Renato Crouzeilles - One of the best experts on this subject based on the ideXlab platform.
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the role of natural regeneration to ecosystem services provision and Habitat Availability a case study in the brazilian atlantic forest
Biotropica, 2016Co-Authors: Renato Crouzeilles, Bernardo B N Strassburg, Felipe S M Barros, Alvaro Iribarrem, Juliana Silveira Dos Santos, Daniel Silva, Jeronimo B B Sansevero, Helena AlvespintoAbstract:Natural regeneration provides multiple benefits to nature and human societies, and can play a major role in global and national restoration targets. However, these benefits are context specific and impacted by both biophysical and socioeconomic heterogeneity across landscapes. Here we investigate the benefits of natural regeneration for climate change mitigation, sediment retention and biodiversity conservation in a spatially explicit way at very high resolution for a region within the global biodiversity hotspot of the Atlantic Forest. We classified current land-use cover in the region and simulated a natural regeneration scenario in abandoned pasturelands, areas where potential conflicts with agricultural production would be minimized and where some early stage regeneration is already occurring. We then modelled changes in biophysical functions for climate change mitigation and sediment retention, and performed an economic valuation of both ecosystem services. We also modelled how land-use changes affect Habitat Availability for species. We found that natural regeneration can provide significant ecological and social benefits. Economic values of climate change mitigation and sediment retention alone could completely compensate for the opportunity costs of agricultural production over 20 years. Habitat Availability is improved for three species with different dispersal abilities, although by different magnitudes. Improving the understanding of how costs and benefits of natural regeneration are distributed can be useful to design incentive structures that bring farmers’ decision making more in line with societal benefits. This alignment is crucial for natural regeneration to fulfil its potential as a large-scale solution for pressing local and global environmental challenges.
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the use of native vegetation as a proxy for Habitat may overestimate Habitat Availability in fragmented landscapes
Landscape Ecology, 2016Co-Authors: Mauricio Almeidagomes, Renato Crouzeilles, Jayme Augusto PrevedelloAbstract:Context Native vegetation is often used as a proxy for Habitat to estimate Habitat Availability in landscapes. This approach may lead to incorrect estimates of the impacts of Habitat loss and fragmentation on species, which have not been thoroughly quantified so far.
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incorporating Habitat Availability into systematic planning for restoration a species specific approach for atlantic forest mammals
Diversity and Distributions, 2015Co-Authors: Renato Crouzeilles, Hawthorne L Beyer, Morena Mills, Carlos Eduardo Viveiros Grelle, Hugh P PossinghamAbstract:AimSpecies persistence often depends not only on Habitat protection, but also on Habitat restoration. The effectiveness of species conservation through Habitat restoration can be enhanced by explicitly considering Habitat Availability', the combined effects of the total amount of Habitat and its spatial configuration. We develop an approach for prioritizing land for restoration in a complex biome, considering Habitat Availability, land acquisition cost and biogeographical representation.
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The effects of Habitat Availability and quality on small mammals abundance in the Brazilian Atlantic Forest
Natureza & Conservacao, 2015Co-Authors: Reginaldo Dos Santos Honorato, Renato Crouzeilles, Mariana Silva Ferreira, Carlos Eduardo Viveiros GrelleAbstract:Abstract Different causal mechanisms have been suggested to explain species decline in fragmented landscapes, mainly those related with the amount and configuration of Habitat for species (Habitat Availability), and those related with the Habitat patch quality. Here we quantify the effects of Habitat Availability and quality on the abundance of three small mammals in a landscape at the Brazilian Atlantic Forest. We compared species with different Habitat preferences and dispersal abilities (Nectomys squamipes, Marmosa paraguayana and Didelphis aurita). The most sensitivity species to fragmentation (N. squamipes) was affected by Habitat quality variables only, while the least sensitive species (D. aurita) did not suffer any effect of Habitat quality and Availability. M. paraguayana, a species with an intermediate degree of sensitivity, responded to both Habitat quality and Availability. We recommend combining information on both Habitat Availability and quality to unravel species persistence in fragmented landscapes.
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the effects of the number size and isolation of patches along a gradient of native vegetation cover how can we increment Habitat Availability
Landscape Ecology, 2014Co-Authors: Renato Crouzeilles, Jayme Augusto Prevedello, Marcos De Souza Lima Figueiredo, Maria Lucia Lorini, Carlos Eduardo Viveiros GrelleAbstract:Habitat Availability—or how much Habitat species can reach at the landscape scale—depends primarily on the percentage of native cover. However, attributes of landscape configuration such as the number, size and isolation of Habitat patches may have complementary effects on Habitat Availability, with implications for the management of landscapes. Here, we determined whether, and at which percentages of native cover, the number, size and isolation of patches contribute for Habitat Availability. We quantified Habitat Availability in 325 landscapes spread across the state of Rio de Janeiro, in the Atlantic Forest hotspot, with either high (>50 %), intermediate (50–30 %), low (30–10 %) or very low ( 50 % of native cover, conservation actions are probably sufficient to guarantee Habitat Availability, whereas in the remaining landscapes additional restoration efforts are needed, especially to reconnect and/or enlarge remaining Habitat patches.
Timothy E. Essington - One of the best experts on this subject based on the ideXlab platform.
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Salvelinus fontinalis) and brown trout (Salmo trutta) in a Minnesota stream cannot be explained by Habitat Availability alone
1998Co-Authors: Timothy E. Essington, Peter W. Sorensen, Dean G. ParonAbstract:This study was conducted to test the hypothesis that redd superimposition by salmonine fishes is a consequence of limited Habitat Availability. We monitored redd site selection by brook trout ( Salvelinus fontinalis) and brown trout (Salmo trutta) for two spawning seasons in Valley Creek, Minnesota. Redd superimposition rates were high; over one half of the brook trout and one third of the brown trout superimposed redds. We tested the role of Habitat Availability in this process by characterizing microHabitat at sites with and without redds in four small sections of this stream and then determined whether superimposition could be explained by random dispersal of fish over available Habitat. Brown trout preferred spawning sites with high flows whereas brook trout strongly preferred deep sites with upwelling groundwater. No relationship was observed between fish density and superimposition. Additionally, the observed frequency of superimposition was greater than expected by chance in six of eight instances for brown trout and in one of three instances for brook trout. Finally, a behavioral experiment provided direct evidence that females have a behavioral preference to spawn on existing redd sites, suggesting that factors other than Habitat may determine redd site selection and hence superimposition.
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high rate of redd superimposition by brook trout salvelinus fontinalis and brown trout salmo trutta in a minnesota stream cannot be explained by Habitat Availability alone
Canadian Journal of Fisheries and Aquatic Sciences, 1998Co-Authors: Timothy E. Essington, Peter W. Sorensen, Dean G. ParonAbstract:This study was conducted to test the hypothesis that redd superimposition by salmonine fishes is a consequence of limited Habitat Availability. We monitored redd site selection by brook trout (Salv...
Richard Raymond - One of the best experts on this subject based on the ideXlab platform.
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contribution of private gardens to Habitat Availability connectivity and conservation of the common pipistrelle in paris
Landscape and Urban Planning, 2020Co-Authors: Anne Mimet, Christian Kerbiriou, Laurent Simon, Jeanfrancois Julien, Richard RaymondAbstract:Abstract Urban sprawl is one of the greatest global changes with major negative impacts on biodiversity. Recent policies have acknowledged the value of urban green areas in counterbalancing such impacts. However, these policies are largely focused on public green areas, ignoring the role and potential of private green areas for urban ecological value. This paper aims at evaluating the importance of private gardens for Habitat Availability and connectivity in Paris, France, using the common pipistrelle (Pipistrellus pipistrellus) as model species. We hypothesize that public green areas contribute more to Habitat Availability than private gardens because of their large area, and that private gardens contribute more to connectivity than public green areas because of their scattered locations in the city. Using data on common pipistrelle activity and information on vegetation and building height, we quantify the respective contribution of public green areas and private gardens in the bat Habitat Availability and connectivity. Our results show that despite the low proportion of private green areas in Paris (36% of the total green areas), they still contributed up to 47.9% of bat Habitat Availability and decrease the resistance of the city matrix by 57%. The distribution in the city matrix and vegetation composition of those areas appeared especially beneficial for bat Habitat Availability and connectivity. The study demonstrates the importance of private gardens in the ecological value of cities in complementing public green areas. Our results confirm the need to develop more inclusive urban conservation strategies that include both public and private stakeholders.
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contribution of private gardens to Habitat Availability connectivity and conservation of the common pipistrelle in paris
bioRxiv, 2019Co-Authors: Anne Mimet, Christian Kerbiriou, Laurent Simon, Jeanfrancois Julien, Richard RaymondAbstract:Urban sprawl is one of the greatest global changes with major negative impacts on biodiversity and human well-being. Recent policies have acknowledged the value of urban green areas in counterbalancing such impacts. These policies aim to increase the ecological value of green areas, making cities more permeable to natural populations. However, they are largely focused on the role and management of public green areas, ignoring the role and potential of private green areas for urban ecological value.nnThis study aims to evaluate the benefits of considering private green areas for conservation efforts in cities. Using data on bat activity and information on vegetation and building height, we quantify the respective role of public and private green areas in Habitat Availability and connectivity for the common pipistrelle in the city of Paris, France. Our results show that despite the low proportion of private green areas in Paris (36% of the total green areas), they still contributed up to 47.9% of bat Habitat Availability and decrease the resistance of the city matrix by 88%. The distribution in the city matrix and vegetation composition of those areas appeared especially beneficial for bat Habitat Availability and connectivity. The study demonstrates the importance of private green areas in the ecological value of cities in complementing the role of public green areas. Our results confirm the need to develop more inclusive urban conservation strategies that include both public and private stakeholders.nnHighlightsO_LIThe urban ecological value of private gardens outweighs that of public gardensnC_LIO_LIThis is true for both Habitat Availability and connectivitynC_LIO_LIBiodiversity policies in cities should also focus on private green areasnC_LIO_LIInclusive conservation strategies are also needed in citiesnC_LI
Niels C. Brouwers - One of the best experts on this subject based on the ideXlab platform.
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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
Landscape Ecology, 2009Co-Authors: Niels C. Brouwers, Adrian C. NewtonAbstract:Little 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 impacts of Habitat loss and fragmentation.
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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
Landscape Ecology, 2009Co-Authors: Niels C. Brouwers, Adrian C. NewtonAbstract:Little 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 (