The Experts below are selected from a list of 151248 Experts worldwide ranked by ideXlab platform
Laura Lopezhoffman - One of the best experts on this subject based on the ideXlab platform.
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linking landscape scale Conservation to regional and continental outcomes for a migratory species
Scientific Reports, 2020Co-Authors: Brady J. Mattsson, Wayne E. Thogmartin, James A. Dubovsky, Darius J. Semmens, J. H. Devries, Laura Lopezhoffman, Jonathan J DerbridgeAbstract:Land-use intensification on arable land is expanding and posing a threat to biodiversity and ecosystem services worldwide. We develop methods to link funding for avian breeding Habitat Conservation and management at landscape scales to equilibrium abundance of a migratory species at the continental scale. We apply this novel approach to a harvested bird valued by birders and hunters in North America, the northern pintail duck (Anas acuta), a species well below its population goal. Based on empirical observations from 2007–2016, Habitat Conservation investments for waterfowl cost $313 M and affected <2% of the pintail’s primary breeding area in the Prairie Pothole Region of Canada. Realistic scenarios for harvest and Habitat Conservation costing an estimated $588 M (2016 USD) led to predicted pintail population sizes <3 M when assuming average parameter values. Accounting for parameter uncertainty, converting 70–100% of these croplands to idle grassland (cost: $35.7B–50B) is required to achieve the continental population goal of 4 M individuals under the current harvest policy. Using our work as a starting point, we propose continued development of modeling approaches that link Conservation funding, Habitat delivery, and population response to better integrate Conservation efforts and harvest management of economically important migratory species.
Els Van Lavieren - One of the best experts on this subject based on the ideXlab platform.
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Behavioural thermoregulation via microHabitat selection of winter sleeping areas in an endangered primate: implications for Habitat Conservation.
Royal Society open science, 2019Co-Authors: Liz A D Campbell, Bonaventura Majolo, Patrick J Tkaczynski, Mohamed Mouna, Abderrahim Derrou, Lahcen Oukannou, Els Van LavierenAbstract:Strategic microHabitat selection allows animals in seasonally cold environments to reduce homeostatic energy costs, particularly overnight when thermoregulatory demands are greatest. Suitable sleep...
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Behavioural thermoregulation via microHabitat selection of winter sleeping areas in an endangered primate: implications for Habitat Conservation.
Royal Society open science, 2018Co-Authors: Liz A D Campbell, Bonaventura Majolo, Patrick J Tkaczynski, Mohamed Mouna, Abderrahim Derrou, Lahcen Oukannou, Els Van LavierenAbstract:Strategic microHabitat selection allows animals in seasonally cold environments to reduce homeostatic energy costs, particularly overnight when thermoregulatory demands are greatest. Suitable sleeping areas may therefore represent important resources for winter survival. Knowledge of microHabitat use and potential impacts of anthropogenic Habitat modification can aid species Conservation through development of targeted Habitat management plans. Wild, endangered Barbary macaques (Macaca sylvanus) in logged cedar-oak forest were studied to investigate (1) the hypothesis that macaques select winter sleeping areas with microHabitat characteristics that may reduce thermoregulatory costs, and, if so, (2) how to minimize damage to sleeping areas from logging. Macaques slept only in Atlas cedars (Cedrus atlantica). Consistent with predictions, macaques preferred sleeping in sheltered topography and dense vegetation, which may reduce exposure to wind, precipitation and cold, and preferred large trees that facilitate social huddling. This suggests that Barbary macaques employ strategic nocturnal microHabitat selection to reduce thermoregulatory costs and thus suitable sleeping areas may influence winter survival. To minimize negative impacts of logging on macaque sleeping areas, results suggest avoiding logging in topographical depressions and maintaining cedar densities greater than 250 ha-1 with average breast height greater than 60 cm. This study demonstrates how animal behaviour can be used to guide species-specific Habitat management plans.
Simon Chollet - One of the best experts on this subject based on the ideXlab platform.
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Integrating species pools and abundance distribution in Habitat Conservation status assessment: A new index
Ecological Indicators, 2021Co-Authors: Vincent Jung, Loïs Morel, Sébastien Bonthoux, Simon CholletAbstract:Abstract Habitat degradation and fragmentation are recognized as major causes of biodiversity loss, and effective management to conserve Habitats is highly dependent on our ability to assess their Conservation status. In this study we introduce a new index (VCS, for vegetation Conservation status) to assess the Conservation status of plant communities, which reflect the identity of Habitat types. The VCS index is based on the same probabilistic approach than the classical Simpson’s diversity index, but uses the concept of species pools to integrate the influence of ‘typical’ and ‘non-typical’ species on Habitat Conservation status. In addition to the effect of species identity, this index also allows the detection of change in Conservation status because of variation in species-abundance distribution. As an example we applied the VCS index to two heathland Habitats in French Brittany and we compared the values provided by the index to qualitative assessments by heathland experts. We also compared the performance of the VCS index against three other indices: species richness, species diversity and a more recent index of ‘favourable Conservation status’. Among the four indices tested, the VCS index was the most effective in assessing the vegetation Conservation status when compared against qualitative assessment by heathland experts. Moreover the VCS index, coupled with variance partitioning methods, allowed to quantify the contribution of expected causes of Habitat degradation. This study demonstrates that the use of Habitat-specific species pools to distinguish between typical and non-typical species, as well as the consideration of species abundances, are critical for an accurate assessment of the vegetation Conservation status. The VCS index should therefore be a valuable tool for both managers and researchers involved in Habitat Conservation.
Liz A D Campbell - One of the best experts on this subject based on the ideXlab platform.
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Behavioural thermoregulation via microHabitat selection of winter sleeping areas in an endangered primate: implications for Habitat Conservation.
Royal Society open science, 2019Co-Authors: Liz A D Campbell, Bonaventura Majolo, Patrick J Tkaczynski, Mohamed Mouna, Abderrahim Derrou, Lahcen Oukannou, Els Van LavierenAbstract:Strategic microHabitat selection allows animals in seasonally cold environments to reduce homeostatic energy costs, particularly overnight when thermoregulatory demands are greatest. Suitable sleep...
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Behavioural thermoregulation via microHabitat selection of winter sleeping areas in an endangered primate: implications for Habitat Conservation.
Royal Society open science, 2018Co-Authors: Liz A D Campbell, Bonaventura Majolo, Patrick J Tkaczynski, Mohamed Mouna, Abderrahim Derrou, Lahcen Oukannou, Els Van LavierenAbstract:Strategic microHabitat selection allows animals in seasonally cold environments to reduce homeostatic energy costs, particularly overnight when thermoregulatory demands are greatest. Suitable sleeping areas may therefore represent important resources for winter survival. Knowledge of microHabitat use and potential impacts of anthropogenic Habitat modification can aid species Conservation through development of targeted Habitat management plans. Wild, endangered Barbary macaques (Macaca sylvanus) in logged cedar-oak forest were studied to investigate (1) the hypothesis that macaques select winter sleeping areas with microHabitat characteristics that may reduce thermoregulatory costs, and, if so, (2) how to minimize damage to sleeping areas from logging. Macaques slept only in Atlas cedars (Cedrus atlantica). Consistent with predictions, macaques preferred sleeping in sheltered topography and dense vegetation, which may reduce exposure to wind, precipitation and cold, and preferred large trees that facilitate social huddling. This suggests that Barbary macaques employ strategic nocturnal microHabitat selection to reduce thermoregulatory costs and thus suitable sleeping areas may influence winter survival. To minimize negative impacts of logging on macaque sleeping areas, results suggest avoiding logging in topographical depressions and maintaining cedar densities greater than 250 ha-1 with average breast height greater than 60 cm. This study demonstrates how animal behaviour can be used to guide species-specific Habitat management plans.
Dennis D Murphy - One of the best experts on this subject based on the ideXlab platform.
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the science of Conservation planning Habitat Conservation under the endangered species act
1997Co-Authors: John H. Rappole, Michael Oconnell, Reed F Noss, Dennis D MurphyAbstract:In The Science of Conservation Planning, three of the nation's leading Conservation biologists explore the role of the scientist in the planning process and present a framework and guidelines for applying science to regional Habitat-based Conservation planning. Chapters consider history and background of Conservation planning efforts, criticisms of science in Conservation planning, principles of Conservation biology that apply to Conservation planning, detailed examination of Conservation plans, and specific recommendations for all parties involved. The Science of Conservation Planning will serve as a model for the application of Conservation biology to real-life problems, and can lead to the development of scientifically and politically sound plans that are likely to achieve their Conservation goals, even in cases where biological and ecological information is limited.
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integrating scientific methods with Habitat Conservation planning reserve design for northern spotted owls
Ecological Applications, 1992Co-Authors: Dennis D Murphy, Barry R NoonAbstract:To meet the requirements of Congressional legislation mandating the pro- duction of a "scientifically credible" Conservation strategy for the threatened Northern Spotted Owl (Strix occidentalis caurina), the Interagency Spotted Owl Scientific Committee employed scientific methods to design a Habitat reserve system. Information on the current and historical distributions of the owl and its Habitats was reviewed in light of economic, political, and legal constraints; results were used to develop a preliminary reserve system of Habitat "polygons." A map representing these polygons and their attendant properties served as a set of hypotheses that were tested. Statistical analyses of empirical data, pre- dictions from ecological theory, predictions from population dynamics models, and infer- ences drawn from studies of related species were used to test properties of the preliminary map, including the number and sizes of Habitat Conservation areas (HCAs), their distri- bution, configuration, and spacing, and the nature of the landscape matrix between HCAs. Conclusions that failed to confirm specific map properties were used to refine the reserve system, a process that continued iteratively until all relevant data had been examined and all map properties had been tested. This Conservation planning process has proven to be credible, repeatable, and scientifically defendable, and should serve as a model for wildlife management, endangered species recovery, and national forest planning.
