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Short-term impacts of trampling on selected soil and vegetation properties of alpine grassland in Qilian Mountain National Park,China. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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2
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Butler OM, Lewis T, Maunsell SC, Rezaei Rashti M, Elser JJ, Mackey B, Chen C. The stoichiometric signature of high‐frequency fire in forest floor food webs. ECOL MONOGR 2021. [DOI: 10.1002/ecm.1477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Orpheus M. Butler
- Australian Rivers Institute and Griffith School of Environment and Science Griffith University Nathan Queensland Australia
- School of Life and Environmental Sciences The University of Sydney Sydney New South Wales Australia
| | - Tom Lewis
- Department of Agriculture and Fisheries Agri‐Science Queensland University of the Sunshine Coast Maroochydore DC Queensland Australia
| | - Sarah C. Maunsell
- Department of Organismic and Evolutionary Biology Harvard University Boston Massachusetts USA
| | - Mehran Rezaei Rashti
- Australian Rivers Institute and Griffith School of Environment and Science Griffith University Nathan Queensland Australia
| | - James J. Elser
- Flathead Lake Biological Station University of Montana Polson Montana USA
| | - Brendan Mackey
- Griffith Climate Change Response Program Griffith University Gold Coast City Queensland Australia
| | - Chengrong Chen
- Australian Rivers Institute and Griffith School of Environment and Science Griffith University Nathan Queensland Australia
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Morgan JW, McCarthy MA, Willocks E. Does intraspecific variation in demography have implications for fire management of an obligate‐seeder shrub across its geographic range? AUSTRAL ECOL 2020. [DOI: 10.1111/aec.12981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- John W. Morgan
- Department of Ecology, Environment and Evolution La Trobe University Bundoora Victoria3083Australia
- Research Centre for Future Landscapes La Trobe University Bundoora VictoriaAustralia
| | - Michael A. McCarthy
- School of BioSciences The University of Melbourne Parkville VictoriaAustralia
| | - Emily Willocks
- Department of Ecology, Environment and Evolution La Trobe University Bundoora Victoria3083Australia
- Department of Environment, Land, Water and Planning East Melbourne Victoria Australia
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Bartley ML, Hanks EM, Schliep EM, Soranno PA, Wagner T. Identifying and characterizing extrapolation in multivariate response data. PLoS One 2019; 14:e0225715. [PMID: 31805095 PMCID: PMC6894872 DOI: 10.1371/journal.pone.0225715] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 11/10/2019] [Indexed: 12/02/2022] Open
Abstract
Faced with limitations in data availability, funding, and time constraints, ecologists are often tasked with making predictions beyond the range of their data. In ecological studies, it is not always obvious when and where extrapolation occurs because of the multivariate nature of the data. Previous work on identifying extrapolation has focused on univariate response data, but these methods are not directly applicable to multivariate response data, which are common in ecological investigations. In this paper, we extend previous work that identified extrapolation by applying the predictive variance from the univariate setting to the multivariate case. We propose using the trace or determinant of the predictive variance matrix to obtain a scalar value measure that, when paired with a selected cutoff value, allows for delineation between prediction and extrapolation. We illustrate our approach through an analysis of jointly modeled lake nutrients and indicators of algal biomass and water clarity in over 7000 inland lakes from across the Northeast and Mid-west US. In addition, we outline novel exploratory approaches for identifying regions of covariate space where extrapolation is more likely to occur using classification and regression trees. The use of our Multivariate Predictive Variance (MVPV) measures and multiple cutoff values when exploring the validity of predictions made from multivariate statistical models can help guide ecological inferences.
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Affiliation(s)
- Meridith L. Bartley
- Department of Statistics, Pennsylvania State University, University Park, Pennsylvania, United States of America
- * E-mail:
| | - Ephraim M. Hanks
- Department of Statistics, Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Erin M. Schliep
- Department of Statistics, University of Missouri, Columbia, Missouri, United States of America
| | - Patricia A. Soranno
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, Michigan, United States of America
| | - Tyler Wagner
- U.S. Geological Survey, Pennsylvania Cooperative Fish and Wildlife Research Unit, Pennsylvania State University, University Park, Pennsylvania, United States of America
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Bogoni JA, Navarro AB, Graipel ME, Peroni N. Modeling the frugivory of a plant with inconstant productivity and solid interaction with relictual vertebrate biota. Ecol Modell 2019. [DOI: 10.1016/j.ecolmodel.2019.108728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Houlahan JE, McKinney ST, Anderson TM, McGill BJ. The priority of prediction in ecological understanding. OIKOS 2016. [DOI: 10.1111/oik.03726] [Citation(s) in RCA: 136] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jeff E. Houlahan
- Dept of Biology; 100 Tucker Park Road, Univ. of New Brunswick; Saint John NB, E2L 4L5 Canada
| | - Shawn T. McKinney
- Univ. of Maine, Maine Cooperative Fish and Wildlife Research Unit; Orono Maine United States
| | | | - Brian J. McGill
- School of Biology and Ecology, Mitchell Center for Sustainability Solutions, Univ. of Maine; Orono ME USA
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Debuse VJ, Lewis T. Long-term repeated burning reduces Lantana camara regeneration in a dry eucalypt forest. Biol Invasions 2014. [DOI: 10.1007/s10530-014-0697-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Brown LE, Johnston K, Palmer SM, Aspray KL, Holden J. River ecosystem response to prescribed vegetation burning on Blanket Peatland. PLoS One 2013; 8:e81023. [PMID: 24278367 PMCID: PMC3836983 DOI: 10.1371/journal.pone.0081023] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 10/15/2013] [Indexed: 11/18/2022] Open
Abstract
Catchment-scale land-use change is recognised as a major threat to aquatic biodiversity and ecosystem functioning globally. In the UK uplands rotational vegetation burning is practised widely to boost production of recreational game birds, and while some recent studies have suggested burning can alter river water quality there has been minimal attention paid to effects on aquatic biota. We studied ten rivers across the north of England between March 2010 and October 2011, five of which drained burned catchments and five from unburned catchments. There were significant effects of burning, season and their interaction on river macroinvertebrate communities, with rivers draining burned catchments having significantly lower taxonomic richness and Simpson’s diversity. ANOSIM revealed a significant effect of burning on macroinvertebrate community composition, with typically reduced Ephemeroptera abundance and diversity and greater abundance of Chironomidae and Nemouridae. Grazer and collector-gatherer feeding groups were also significantly less abundant in rivers draining burned catchments. These biotic changes were associated with lower pH and higher Si, Mn, Fe and Al in burned systems. Vegetation burning on peatland therefore has effects beyond the terrestrial part of the system where the management intervention is being practiced. Similar responses of river macroinvertebrate communities have been observed in peatlands disturbed by forestry activity across northern Europe. Finally we found river ecosystem changes similar to those observed in studies of wild and prescribed forest fires across North America and South Africa, illustrating some potentially generic effects of fire on aquatic ecosystems.
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Affiliation(s)
- Lee E. Brown
- School of Geography and water@leeds, University of Leeds, Leeds, United Kingdom
- * E-mail:
| | - Kerrylyn Johnston
- School of Geography and water@leeds, University of Leeds, Leeds, United Kingdom
| | - Sheila M. Palmer
- School of Geography and water@leeds, University of Leeds, Leeds, United Kingdom
| | - Katie L. Aspray
- School of Geography and water@leeds, University of Leeds, Leeds, United Kingdom
| | - Joseph Holden
- School of Geography and water@leeds, University of Leeds, Leeds, United Kingdom
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Ramchunder SJ, Brown LE, Holden J. Rotational vegetation burning effects on peatland stream ecosystems. J Appl Ecol 2013. [DOI: 10.1111/1365-2664.12082] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Lee E. Brown
- School of Geography/water@leeds; University of Leeds; Leeds; LS2 9JT; UK
| | - Joseph Holden
- School of Geography/water@leeds; University of Leeds; Leeds; LS2 9JT; UK
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Kelly LT, Nimmo DG, Spence-Bailey LM, Haslem A, Watson SJ, Clarke MF, Bennett AF. Influence of fire history on small mammal distributions: insights from a 100-year post-fire chronosequence. DIVERS DISTRIB 2011. [DOI: 10.1111/j.1472-4642.2011.00754.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Bradshaw SD, Dixon KW, Hopper SD, Lambers H, Turner SR. Little evidence for fire-adapted plant traits in Mediterranean climate regions. TRENDS IN PLANT SCIENCE 2011; 16:69-76. [PMID: 21095155 DOI: 10.1016/j.tplants.2010.10.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 10/15/2010] [Accepted: 10/26/2010] [Indexed: 05/04/2023]
Abstract
As climate change increases vegetation combustibility, humans are impacted by wildfires through loss of lives and property, leading to an increased emphasis on prescribed burning practices to reduce hazards. A key and pervading concept accepted by most environmental managers is that combustible ecosystems have traditionally burnt because plants are fire adapted. In this opinion article, we explore the concept of plant traits adapted to fire in Mediterranean climates. In the light of major threats to biodiversity conservation, we recommend caution in deliberately increasing fire frequencies if ecosystem degradation and plant extinctions are to be averted as a result of the practice.
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Affiliation(s)
- S Don Bradshaw
- School of Animal Biology and Centre for Native Animal Research, University of Western Australia, Perth, WA 6009, Australia.
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Mori AS. Ecosystem management based on natural disturbances: hierarchical context and non-equilibrium paradigm. J Appl Ecol 2011. [DOI: 10.1111/j.1365-2664.2010.01956.x] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Effects of canopy gap size on recruitment and invasion of the non-indigenous Rubus alceifolius in lowland tropical rain forest on Réunion. JOURNAL OF TROPICAL ECOLOGY 2008. [DOI: 10.1017/s0266467408004987] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract:An important challenge of invasion biology is to understand how interactions between species traits and ecosystem properties enable alien species to become invasive at particular locations. We investigated how gap dynamics in a tropical rain forest on the island of Réunion affected the invasiveness of alien plants. In the 12 000-m2 study area, alien plants occupied 24.9% of the area of gaps, which represented 5.62% of the forest area, but only 0.8% of the understorey area. The most abundant invasive species was Rubus alceifolius, which formed dense, monospecific stands in the largest gaps (> 25 m2). Although plants could persist in the shade, a germination experiment revealed that canopy openings were essential for seedling establishment. A cyclone that struck the study area in 2002 caused a temporary thinning of the canopy, increasing light levels to above the threshold needed for germination of R. alceifolius and also stimulating the growth of established plants. We conclude that the ability of this and other alien species to colonize intact lowland tropical rain forest is strongly influenced by the prevailing gap dynamics. Because gaps are also essential for the regeneration of many native trees in our study area, there is a real danger of the forest being progressively degraded by alien plants. There are no simple solutions to controlling species such as Rubus alceifolius, but efforts should be focused mainly upon the larger gaps where the species are most invasive.
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Devaux C, Klein EK, Lavigne C, Sausse C, Messéan A. Environmental and landscape effects on cross-pollination rates observed at long distance among French oilseed rape Brassica napus commercial fields. J Appl Ecol 2007. [DOI: 10.1111/j.1365-2664.2007.01400.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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ZANNÈSE AUDREY, MORELLET NICOLAS, TARGHETTA CHIARA, COULON AURÉLIE, FUSER SIMONETTA, HEWISON AJMARK, RAMANZIN MAURIZIO. Spatial structure of roe deer populations: towards defining management units at a landscape scale. J Appl Ecol 2006. [DOI: 10.1111/j.1365-2664.2006.01229.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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YALLOP AR, THACKER JI, THOMAS G, STEPHENS M, CLUTTERBUCK B, BREWER T, SANNIER CAD. The extent and intensity of management burning in the English uplands. J Appl Ecol 2006. [DOI: 10.1111/j.1365-2664.2006.01222.x] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Forbis TA, Provencher L, Frid L, Medlyn G. Great Basin land management planning using ecological modeling. ENVIRONMENTAL MANAGEMENT 2006; 38:62-83. [PMID: 16514478 DOI: 10.1007/s00267-005-0089-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
This report describes a land management modeling effort that analyzed potential impacts of proposed actions under an updated Bureau of Land Management Resource Management Plan that will guide management for 20 years on 4.6 million hectares in the Great Basin ecoregion of the United States. State-and-transition models that included vegetation data, fire histories, and many parameters (i.e., rates of succession, fire return intervals, outcomes of management actions, and invasion rates of native and nonnative invasive species) were developed through workshops with scientific experts and range management specialists. Alternative restoration scenarios included continuation of current management, full fire suppression, wildfire use in designated fire use zones, wildfire use in resilient vegetation types only, restoration with a tenfold budget increase, no restoration treatments, and no livestock grazing. Under all the scenarios, cover of vegetation states with native perennial understory declined and was replaced by tree-invaded and weed-dominated states. The greatest differences among alternative management scenarios resulted from the use of fire as a tool to maintain native understory. Among restoration scenarios, only the scenario assuming a tenfold budget increase had a more desirable outcome than the current management scenario. Removal of livestock alone had little effect on vegetation resilience. Rather, active restoration was required. The predictive power of the model was limited by current understanding of Great Basin vegetation dynamics and data needs including statistically valid monitoring of restoration treatments, invasiveness and invasibility, and fire histories. The authors suggest that such computer models can be useful tools for systematic analysis of potential impacts in land use planning. However, for a modeling effort to be productive, the management situation must be conducive to open communication among land management agencies and partner entities, including nonprofit organizations.
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Affiliation(s)
- Tara A Forbis
- The Nature Conservancy of Nevada, P.O. Box 150266, Ely, Nevada 89315, USA.
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CHANDY SHIBI, GIBSON DAVIDJ, ROBERTSON PHILIPA. Additive partitioning of diversity across hierarchical spatial scales in a forested landscape. J Appl Ecol 2006. [DOI: 10.1111/j.1365-2664.2006.01178.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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BRADSTOCK RA, BEDWARD M, COHN JS. The modelled effects of differing fire management strategies on the conifer Callitris verrucosa within semi-arid mallee vegetation in Australia. J Appl Ecol 2006. [DOI: 10.1111/j.1365-2664.2006.01142.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vitelli JS, Pitt JL. Assessment of current weed control methods relevant to the management of the biodiversity of Australian rangelands. RANGELAND JOURNAL 2006. [DOI: 10.1071/rj06016] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The Australian rangelands contain extensive and often dense populations of a wide variety of weed species. An array of techniques is available for effectively controlling many of these. To achieve long-term weed control, weeds should be targeted objectively and the dependence on the use of single treatments such as herbicides and machinery reduced, with greater adoption of integrated methods. The combination of methods will differ if the primary objective within the rangelands is to restore and maintain biodiversity or to improve forage production for domestic and native animals. Revegetation of sites and exclusion of herbivores from weed treated areas is important in establishing species that will compete with invasive weeds. Due to rangelands being sparsely populated, the necessary equipment, skills and finances to use appropriate control options on extensive weed infestations are often lacking, with landholders requiring the assistance of local, state and federal authorities to assist in managing weeds.
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HULME PHILIPE. Adapting to climate change: is there scope for ecological management in the face of a global threat? J Appl Ecol 2005. [DOI: 10.1111/j.1365-2664.2005.01082.x] [Citation(s) in RCA: 254] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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HART STEPHENC, CLASSEN AIMÉET, WRIGHT ROBERTJ. Long-term interval burning alters fine root and mycorrhizal dynamics in a ponderosa pine forest. J Appl Ecol 2005. [DOI: 10.1111/j.1365-2664.2005.01055.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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VANDVIK VIGDIS, HEEGAARD EINAR, MAREN INGERELISABETH, AARRESTAD PERARILD. Managing heterogeneity: the importance of grazing and environmental variation on post-fire succession in heathlands. J Appl Ecol 2005. [DOI: 10.1111/j.1365-2664.2005.00982.x] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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EMERY SARAHM, GROSS KATHERINEL. Effects of timing of prescribed fire on the demography of an invasive plant, spotted knapweed Centaurea maculosa. J Appl Ecol 2005. [DOI: 10.1111/j.1365-2664.2004.00990.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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