Pattern of tree species co-occurrence in an ecotone responds to spatially variable drivers

Shea, Monika E.; Mladenoff, David J.; Clayton, Murray K.; Berg, Stephen; Elza, Hayden

doi:10.1007/s10980-022-01485-x

Cited by 3 publications

(4 citation statements)

References 72 publications

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“…At present, there still exists some limitations in the study of water conservation in the Hulunbuir forest-steppe ecotone based on the Invest model, which mainly include: (1) The response of each driving factor to water conservation is discussed in the research, but the research on the specific mechanism of how each factor affects water conservation is limited. (2) The applicability of the model in the whole Hulunbuir region needs further verification. Thus, the model has better application scenarios and increases the general applicability of the model.…”

Section: Significance and Limitations Of This Studymentioning

confidence: 98%

“…Calculated from soil texture: PAWC = 54.509 − 0.132sand% − 0.003(sand%) 2 − 0.055silt% − 0.006(slit%) 2 − 0.738clay% + 0.007(clay%) 2 − 2.688OM% + 0.501(OM%) 2 , where OM% represents the content of soil organic matter [52].…”

Section: Plant Available Water Content (Pawc)mentioning

confidence: 99%

“…Ecotone is a transitional zone between adjacent ecological systems, with a series of characteristics uniquely defined by time, space, and the strength of the interactions between the adjacent zone [1,2]. The utility of the ecotone concept has been described in a series of international meetings [3] and a famous joint publication by the Ecological Society of America and the Man and Biosphere Program [4].…”

Section: Introductionmentioning

confidence: 99%

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How Does the Water Conservation Function of Hulunbuir Forest–Steppe Ecotone Respond to Climate Change and Land Use Change?

Lyu

Diao

et al. 2022

Forests

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The scarcity of water resources is becoming a global focus, and water conservation has become one of the most crucial service functions in the water security and sustainable development of ecosystems. Hulunbuir forest–steppe ecotone, as an important water conservation area in the northeastern provinces of China, plays an irreplaceable role in Northeastern China. However, the water yield and water conservation are rarely understood in the ecotone. In this study, the InVEST model was employed to analyze the spatiotemporal dynamics of water yield and water conservation from 2000 to 2020. Meanwhile, we explored the response of water conservation to climatic factors and human disturbance. The results demonstrated that water yield and water conservation presented a decreasing trend in the first decade and then increased. The land use transfer obvious from 2000 to 2010, and most vegetation types were converted into unused land. This transition intensified reduction of water conservation. The main factor affecting the water conservation was climate Precipitation had the greatest impact on water conservation. The findings of this study have great and important implications for regional sustainable water resource management and ecological protection policies and provide a convenient method for evaluating water conservation in other areas that are lacking climate, hydrology, and geological data.

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Section: Significance and Limitations Of This Studymentioning

confidence: 98%

Section: Plant Available Water Content (Pawc)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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How Does the Water Conservation Function of Hulunbuir Forest–Steppe Ecotone Respond to Climate Change and Land Use Change?

Lyu

Diao

et al. 2022

Forests

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“…Ecotones are transitional areas between adjacent biocenosis with high levels of biodiversity, as they host species from the adjacent biocenosis as well as unique species endemic to the ecotone (Hufkens et al, 2009;Vila-Vicosa et al, 2020b;Shea et al, 2022). Ecotones are of especial interest for conservation (Carlson et al, 2014;Rawal et al, 2018;Lopes et al, 2020) for their ecological uniqueness (Danso Marfo et al, 2019), and for contributing to stabilize adjacent ecosystems (Pogue and Schnell, 2001).…”

Section: Introductionmentioning

confidence: 99%

Linking functional composition moments of the sub-Mediterranean ecotone with environmental drivers

de Tomás Marín,

Galán Díaz,

Rodríguez-Calcerrada

et al. 2023

Front. Plant Sci.

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IntroductionFunctional trait-based approaches are extensively applied to the study of mechanisms governing community assembly along environmental gradients. These approaches have been classically based on studying differences in mean values among species, but there is increasing recognition that alternative metrics of trait distributions should be considered to decipher the mechanisms determining community assembly and species coexistence. Under this framework, the main aim of this study is to unravel the effects of environmental conditions as drivers of plant community assembly in sub-Mediterranean ecotones.MethodsWe set 60 plots in six plant communities of a sub-Mediterranean forest in Central Spain, and measured key above- and belowground functional traits in 411 individuals belonging to 19 species, along with abiotic variables. We calculated community-weighted mean (CWM), skewness (CWS) and kurtosis (CWK) of three plant dimensions, and used maximum likelihood techniques to analyze how variation in these functional community traits was driven by abiotic factors. Additionally, we estimated the relative contribution of intraspecific trait variability and species turnover to variation in CWM.Results and discussionThe first three axes of variation of the principal component analyses were related to three main plant ecological dimensions: Leaf Economics Spectrum, Root Economics Spectrum and plant hydraulic architecture, respectively. Type of community was the most important factor determining differences in the functional structure among communities, as compared to the role of abiotic variables. We found strong differences among communities in their CWMs in line with their biogeographic origin (Eurosiberian vs Mediterranean), while differences in CWS and CWK indicate different trends in the functional structure among communities and the coexistence of different functional strategies, respectively. Moreover, changes in functional composition were primarily due to intraspecific variability.ConclusionWe observed a high number of strategies in the forest with the different communities spreading along the acquisitive-conservative axis of resource-use, partly matching their Eurosiberian-Mediterranean nature, respectively. Intraspecific trait variability, rather than species turnover, stood as the most relevant factor when analyzing functional changes and assembly patterns among communities. Altogether, our data support the notion that ecotones are ecosystems where relatively minor environmental shifts may result in changes in plant and functional composition.

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Physiological trait coordination and variability across and within three Pinus species

Augustine,

McCulloh

2024

New Phytologist

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Summary Studies have explored how traits separate plants ecologically and the trade‐offs that underpin this separation. However, uncertainty remains as to the taxonomic scale at which traits can predictably separate species. We studied how physiological traits separated three Pinus (Pinus banksiana, Pinus resinosa, and Pinus strobus) species across three sites. We collected traits from four common leaf and branch measurements (light–response curves, CO2–response curves, pressure–volume curves, and hydraulic vulnerability curves) across each species and site. While common, these measurements are not typically measured together due to logistical constraints. Few traits varied across species and sites as expected given the ecological preferences of the species and environmental site characteristics. Some trait trade‐offs present at broad taxonomic scales were observed across the three species, but most were absent within species. Certain trade‐offs contrasted expectations observed at broader scales but followed expectations given the species' ecological preferences. We emphasize the need to both clarify why certain traits are being studied, as variation in unexpected but ecologically meaningful ways often occurs and certain traits might not vary substantially within a given lineage (e.g. hydraulic vulnerability in Pinus), highlighting the role a trait selection in trait ecology.

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Pattern of tree species co-occurrence in an ecotone responds to spatially variable drivers

Cited by 3 publications

References 72 publications

How Does the Water Conservation Function of Hulunbuir Forest–Steppe Ecotone Respond to Climate Change and Land Use Change?

How Does the Water Conservation Function of Hulunbuir Forest–Steppe Ecotone Respond to Climate Change and Land Use Change?

Linking functional composition moments of the sub-Mediterranean ecotone with environmental drivers

Physiological trait coordination and variability across and within three Pinus species

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