Wiegand, Kerstin

[["dc.bibliographiccitation.firstpage","229"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Perspectives in Plant Ecology, Evolution and Systematics"],["dc.bibliographiccitation.lastpage","242"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Saltz, David"],["dc.contributor.author","Ward, David"],["dc.date.accessioned","2017-09-07T11:44:40Z"],["dc.date.available","2017-09-07T11:44:40Z"],["dc.date.issued","2005"],["dc.description.abstract","The coexistence of woody and grassy plants in savannas has often been attributed to a rooting-niche separation (two-layer hypothesis). Water was assumed to be the limiting resource for both growth forms and grasses were assumed to extract water from the upper soil layer and trees and bushes from the lower layers. Woody plant encroachment (i.e. an increase in density of woody plants often unpalatable to domestic livestock) is a serious problem in many savannas and is believed to be the result of overgrazing in ‘two-layer systems’. Recent research has questioned the universality of both the two-layer hypothesis and the hypothesis that overgrazing is the cause of woody plant encroachment. We present an alternative hypothesis explaining both tree–grass coexistence and woody plant encroachment in arid savannas. We propose that woody plant encroachment is part of a cyclical succession between open savanna and woody dominance and is driven by two factors: rainfall that is highly variable in space and time, and inter-tree competition. In this case, savanna landscapes are composed of many patches (a few hectares in size) in different states of transition between grassy and woody dominance, i.e. we hypothesize that arid savannas are patch-dynamic systems. We summarize patterns of tree distribution observed in an arid savanna in Namibia and show that these patterns are in agreement with the patch-dynamic savanna hypothesis. We discuss the applicability of this hypothesis to fire-dominated savannas, in which rainfall variability is low and fire drives spatial heterogeneity. We conclude that field studies are more likely to contribute to a general understanding of tree–grass coexistence and woody plant encroachment if they consider both primary (rain and nutrients) and secondary (fire and grazing) determinants of patch properties across different savannas."],["dc.identifier.doi","10.1016/j.ppees.2005.10.001"],["dc.identifier.gro","3148947"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5590"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","1433-8319"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Fire"],["dc.subject.gro","Grazing"],["dc.subject.gro","Honeycomb rippling model"],["dc.subject.gro","Inter-tree competition"],["dc.subject.gro","Spatio-temporal rainfall variation"],["dc.subject.gro","Tree-grass coexistence"],["dc.title","A patch-dynamics approach to savanna dynamics and woody plant encroachment – Insights from an arid savanna"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","397"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Methods in Ecology and Evolution"],["dc.bibliographiccitation.lastpage","404"],["dc.bibliographiccitation.volume","3"],["dc.contributor.author","Getzin, Stephan"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Schöning, Ingo"],["dc.date.accessioned","2017-09-07T11:52:28Z"],["dc.date.available","2017-09-07T11:52:28Z"],["dc.date.issued","2011"],["dc.description.abstract","1. Structural diversity and niche differences within habitats are important for stabilizing species coexistence. However, land-use change leading to environmental homogenization is a major cause for the dramatic decline of biodiversity under global change. The difficulty in assessing large-scale biodiversity losses urgently requires new technological advances to evaluate land-use impact on diversity timely andefficiently across space. 2. While cost-effective aerial images have been suggested for potential biodiversity assessments in forests, correlation of canopy object variables such as gaps with plant or animal diversity has so far not been demonstrated using these images. 3. Here,we show that aerial images of canopy gaps can be used to assess floristic biodiversity of the forest understorey. This approach is made possible because we employed cutting-edge unmanned aerial vehicles and very high-resolution images (7 cm pixel)1) of the canopy properties. Wedemon- strate that detailed, spatially implicit information on gap shape metrics is sufficient to reveal strong dependency between disturbance patterns and plant diversity (R2 up to 0{\\AE}74). This is feasible because opposing disturbance patterns such as aggregated and dispersed tree retention directly cor- respond to different functional and dispersal traits of species and ultimately to different species diversities. 4. Our findings can be used as a coarse-filter approach to conservation in forests wherever light strongly limits regeneration and biodiversity."],["dc.identifier.doi","10.1111/j.2041-210x.2011.00158.x"],["dc.identifier.gro","3148921"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5560"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","2041-210X"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.rights.uri","http://doi.wiley.com/10.1002/tdm_license_1.1"],["dc.subject.gro","Biodiversity"],["dc.subject.gro","Coarse-filter approach"],["dc.subject.gro","Forest understorey"],["dc.subject.gro","Gap shape complexity index"],["dc.subject.gro","Unmanned aerial vehicles"],["dc.title","Assessing biodiversity in forests using very high-resolution images and unmanned aerial vehicles"],["dc.title.alternative","Assessing biodiversity in forests"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","473"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Journal of Vegetation Science"],["dc.bibliographiccitation.lastpage","484"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Jeltsch, Florian"],["dc.contributor.author","Ward, David"],["dc.date.accessioned","2017-09-07T11:44:43Z"],["dc.date.available","2017-09-07T11:44:43Z"],["dc.date.issued","2000"],["dc.description.abstract","We investigated the spatial pattern of A. raddiana in the Negev desert of Israel in order to gain insights into the factors and processes driving the dynamics of this species. Using a scale‐dependent measure, the ring statistic, we analysed both patterns observed in the field and time series of spatial tree distributions produced by a simulation model. In the field, random spacing was the predominant pattern observed. However seedlings were clumped on small scales. We ran the model under two contrasting scenarios representing hypotheses that explain the clumping of seedlings and the random distribution of trees. One hypothesis is that there is spatial heterogeneity in seed distribution, germination and seedling mortality, but that these heterogeneities are not correlated with each other in space. The second hypothesis assumes a correlation between these heterogeneities leading to areas suitable for establishment. However, the suitability of the sites is temporally variable. Furthermore, the second hypothesis assumes density‐dependent tree mortality due to competition. Both hypotheses lead to spatial distributions that are in qualitative agreement with the patterns observed in the field. Therefore, the classical view that a clumped seedling distribution and a random pattern of older trees is due to clumped regeneration and density‐dependent mortality may not hold for Acacia trees in the Negev."],["dc.identifier.doi","10.2307/3246577"],["dc.identifier.gro","3148944"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5586"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","1100-9233"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Acacia raddiana"],["dc.subject.gro","Negev"],["dc.subject.gro","point pattern analysis"],["dc.subject.gro","simulation model"],["dc.subject.gro","spatio-temporal population dynamics"],["dc.title","Do spatial effects play a role in the spatial distribution of desert-dwelling Acacia raddiana?"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","363"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Oecologia"],["dc.bibliographiccitation.lastpage","372"],["dc.bibliographiccitation.volume","141"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Jeltsch, Florian"],["dc.contributor.author","Ward, David"],["dc.date.accessioned","2017-09-07T11:44:39Z"],["dc.date.available","2017-09-07T11:44:39Z"],["dc.date.issued","2004"],["dc.description.abstract","There is concern about the lack of recruitment of Acacia trees in the Negev desert of Israel. We have developed three models to estimate the frequency of recruitment necessary for long-term population survival (i.e. positive average population growth for 1,000 years and <10% probability of extinction). Two models assume purely episodic recruitment based on the general notion that recruitment in arid environments is highly episodic. They differ in that the deterministic model investigates average dynamics while the stochastic model does not. Studies indicating that recruitment episodes in arid environments have been overemphasized motivated the development of the third model. This semi-stochastic model simulates a mixture of continuous and episodic recruitment. Model analysis was done analytically for the deterministic model and via running model simulations for the stochastic and semi-stochastic models. The deterministic and stochastic models predict that, on average, 2.2 and 3.7 recruitment events per century, respectively, are necessary to sustain the population. According to the semi-stochastic model, 1.6 large recruitment events per century and an annual probability of 50% that a small recruitment event occurs are needed. A consequence of purely episodic recruitment is that all recruitment episodes produce extremely large numbers of recruits (i.e. at odds with field observations), an evaluation that holds even when considering that rare events must be large. Thus, the semi-stochastic model appears to be the most realistic model. Comparing the prediction of the semi-stochastic model to field observations in the Negev desert shows that the absence of observations of extremely large recruitment events is no reason for concern. However, the almost complete absence of small recruitment events is a serious reason for concern. The lack of recruitment may be due to decreased densities of large mammalian herbivores and might be further exacerbated by possible changes in climate, both in terms of average precipitation and the temporal distribution of rain."],["dc.identifier.doi","10.1007/s00442-003-1439-5"],["dc.identifier.gro","3148933"],["dc.identifier.pmid","14666416"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5574"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0029-8549"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Acacia"],["dc.subject.gro","Arid environments"],["dc.subject.gro","Extinction"],["dc.subject.gro","Simulation models"],["dc.title","Minimum recruitment frequency in plants with episodic recruitment"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","E5368"],["dc.bibliographiccitation.issue","37"],["dc.bibliographiccitation.journal","Proceedings of the National Academy of Sciences"],["dc.bibliographiccitation.lastpage","E5369"],["dc.bibliographiccitation.volume","113"],["dc.contributor.author","Getzin, Stephan"],["dc.contributor.author","Yizhaq, Hezi"],["dc.contributor.author","Bell, Bronwyn"],["dc.contributor.author","Erickson, Todd E."],["dc.contributor.author","Postle, Anthony C."],["dc.contributor.author","Katra, Itzhak"],["dc.contributor.author","Tzuk, Omer"],["dc.contributor.author","Zelnik, Yuval R."],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Wiegand, Thorsten"],["dc.contributor.author","Meron, Ehud"],["dc.date.accessioned","2017-09-07T11:52:22Z"],["dc.date.available","2017-09-07T11:52:22Z"],["dc.date.issued","2016"],["dc.identifier.doi","10.1073/pnas.1611877113"],["dc.identifier.gro","3148899"],["dc.identifier.pmid","27588904"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5536"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","0027-8424"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.title","Reply to Walsh et al.: Hexagonal patterns of Australian fairy circles develop without correlation to termitaria"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","115"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Basic and Applied Ecology"],["dc.bibliographiccitation.lastpage","125"],["dc.bibliographiccitation.volume","14"],["dc.contributor.author","Sabatier, Rodolphe"],["dc.contributor.author","Meyer, Katrin Mareike"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Clough, Yann"],["dc.date.accessioned","2017-09-07T11:44:39Z"],["dc.date.available","2017-09-07T11:44:39Z"],["dc.date.issued","2013"],["dc.description.abstract","Growing concerns have been raised regarding the effects of disturbance due to agricultural practices on associate biodiversity and on the ecosystem services that biodiversity provides. Surprisingly little is known about the effects of such disturbances on complex agroecosystems with multiple interacting species. The aim of this study was to assess the effects of management by pesticide spraying on the productive outputs and the ecological functioning of a cacao agroecosystem. We built a mechanistic dynamic model including the dynamics of the crop, a pest (Cacao Pod Borer, Conopomorpha cramerella) and two beneficial insects: a hymenopteran egg-parasitoid and a ceratopogonid pollinator. Using this model, we tested the effects of a range of pesticide types characterized by their impacts on both the Cacao Pod Borer and the beneficial insects. Our results showed that yield strongly varies according to both pesticide type and timing of pesticide application. The type of pesticide had a strong influence on the flexibility of management. No simple spraying decision rule led to maximal yields for all types of pesticide. Although optimal spraying strategies differed with the type of pesticide used, they all showed a similar pattern, i.e. they limited and postponed the Cacao Pod Borer population peak while limiting the negative impacts on beneficial organisms. The results highlight the non-trivial effects of pesticide application in complex agroecosystems where associated biodiversity provides both ecosystem services and disservices. They illustrate the critical importance of providing good information to farmers on pesticide management because the use of pesticides can have a negative effect on production by decreasing ecosystem services such as pollination."],["dc.identifier.doi","10.1016/j.baae.2012.12.006"],["dc.identifier.gro","3148932"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5573"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","1439-1791"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Agroecosystem"],["dc.subject.gro","Cacao"],["dc.subject.gro","Dynamic model"],["dc.subject.gro","Ecosystem services"],["dc.subject.gro","Pesticide"],["dc.subject.gro","Pollination"],["dc.title","Non-linear effects of pesticide application on biodiversity-driven ecosystem services and disservices in a cacao agroecosystem: A modeling study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","63"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Perspectives in Plant Ecology, Evolution and Systematics"],["dc.bibliographiccitation.lastpage","72"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Meyer, Katrin M."],["dc.contributor.author","Ward, David"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Moustakas, Aristides"],["dc.date.accessioned","2017-09-07T11:44:38Z"],["dc.date.available","2017-09-07T11:44:38Z"],["dc.date.issued","2007"],["dc.description.abstract","Coexistence of trees and grasses in savannas should be possible if competition between the woody and the grassy components is less intense than the competition within each component. Although several studies have investigated competition between trees and grasses, little is known about tree-tree interactions. We used a multi-proxy approach to examine the spatial pattern of Acacia mellifera and other savanna woody species in a semi-arid savanna in South Africa. Spatial analysis of the point patterns of young and reproductively mature shrubs detected decreasing aggregation with size/age over all spatial scales. This indicated the prevalence of competition although the overall spatial shrub pattern was aggregated. In contrast to point pattern statistics that detect changes only when competition has led to the death of the inferior competitor, we also applied methods identifying the competitive effect on sizes of individual trees. Competition should lead to a negative spatial autocorrelation in size, which we observed in half of the studied cases. Quantile regressions show that nearest-neighbour distance increased steeply with combined size of the target shrub and its neighbours indicating strong competitive effects. The medians of the distributions of maximum root lengths of A. mellifera, of the scale of regular patterns, and of negative autocorrelations were not significantly different, suggesting that overlapping root systems mediate competitive interactions. A competitor removal experiment did not lead to increased shrub sizes, which may be due to the limited duration of the experiment. From the nearest neighbour and autocorrelation analyses, we conclude that competition had a strong impact on growth rates of savanna woody species. Competition-induced mortality only becomes obvious when analysing the shift towards less aggregated spatial patterns when shrubs become reproductively mature. As the overall clustered spatial pattern masks the perceptible effect of competition, a time component should always be included in spatial pattern-based inference of competition."],["dc.identifier.doi","10.1016/j.ppees.2007.09.002"],["dc.identifier.gro","3148942"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5584"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","1433-8319"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Acacia mellifera"],["dc.subject.gro","Competitor removal experiment"],["dc.subject.gro","Nearest-neighbour distance"],["dc.subject.gro","Quantile regression"],["dc.subject.gro","Spatial autocorrelation"],["dc.subject.gro","Spatial point pattern analysis"],["dc.title","Multi-proxy evidence for competition between savanna woody species"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","807"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Journal of Ecology"],["dc.bibliographiccitation.lastpage","820"],["dc.bibliographiccitation.volume","96"],["dc.contributor.author","Getzin, Stephan"],["dc.contributor.author","Wiegand, Thorsten"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","He, Fangliang"],["dc.date.accessioned","2017-09-07T11:44:40Z"],["dc.date.available","2017-09-07T11:44:40Z"],["dc.date.issued","2008"],["dc.description.abstract","1. The spatial pattern of tree species retains signatures of factors and processes such as dispersal, available resource patches for establishment, competition and demographics. Comparison of the spatial pattern of different size classes can thus help to reveal the importance and characteristics of the underlying processes. However, tree dynamics may be masked by large-scale heterogeneous site conditions, e.g. when the restricting size of regeneration sites superimposes emergent patterns. $\\backslash$\\backslash. Here we ask how environmental heterogeneity may influence the spatial dynamics of plant communities. We compared the spatial patterns and demographics of western hemlock in a homogeneous and a heterogeneous site of old-growth Douglas-fir forests on Vancouver Island using recent techniques of point pattern analysis. We used homogeneous and inhomogeneous K- and pair-correlation functions, and case-control studies to quantify the change in spatial distribution for different size classes of western hemlock. $\\backslash$\\backslash. Our comparative analyses show that biological processes interacted with spatial heterogeneity, leading to qualitatively different population dynamics at the two sites. Population structure, survival and size structure of western hemlock were different in the heterogeneous stand in such a way that, compared to the homogeneous stand, seedlings were more clustered, seedling densities higher, seedling mortality lower, adult growth faster and adult mortality higher. Under homogeneous site conditions, seedling survival was mainly abiotically determined by random arrival in small gaps with limiting light. At the heterogeneous site, seedling densities and initial survival were much higher, leading to strong density-dependent mortality and selection for faster growing individuals in larger size classes. We hypothesise that the dynamics of the heterogeneous stand were faster due to asymmetric competition with disproportionate benefit to taller plants. $\\backslash$\\backslash. Synthesis. Our study supports the hypothesis that successional dynamics are intensified in heterogeneous forest stands with strong spatial structures and outlines the importance of spatial heterogeneity as a determinant of plant population dynamics and pattern formation."],["dc.identifier.doi","10.1111/j.1365-2745.2008.01377.x"],["dc.identifier.gro","3148946"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5589"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.relation.issn","0022-0477"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Case-control"],["dc.subject.gro","Dispersal strategies"],["dc.subject.gro","Inhomogeneous pair-correlation function"],["dc.subject.gro","Large-scale heterogeneity"],["dc.subject.gro","Point pattern analysis"],["dc.subject.gro","Succession"],["dc.subject.gro","Western hemlock"],["dc.title","Heterogeneity influences spatial patterns and demographics in forest stands"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","47"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Frontiers of Biogeography"],["dc.bibliographiccitation.lastpage","53"],["dc.bibliographiccitation.volume","2"],["dc.contributor.author","Moustakas, Aristides"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Meyer, Katrin M."],["dc.contributor.author","Ward, David"],["dc.contributor.author","Sankaran, Mahesh"],["dc.date.accessioned","2017-09-07T11:50:52Z"],["dc.date.available","2017-09-07T11:50:52Z"],["dc.date.issued","2010"],["dc.identifier.doi","10.21425/F5FBG12335"],["dc.identifier.gro","3147839"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5165"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","1948-6596"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.title","Learning new tricks from old trees: revisiting the savanna question"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","212"],["dc.bibliographiccitation.journal","Biological Conservation"],["dc.bibliographiccitation.lastpage","220"],["dc.bibliographiccitation.volume","166"],["dc.contributor.author","Goßner, Martin M."],["dc.contributor.author","Getzin, Stephan"],["dc.contributor.author","Lange, Markus"],["dc.contributor.author","Pašalić, Esther"],["dc.contributor.author","Türke, Manfred"],["dc.contributor.author","Wiegand, Kerstin"],["dc.contributor.author","Weisser, Wolfgang W."],["dc.date.accessioned","2017-09-07T11:52:22Z"],["dc.date.available","2017-09-07T11:52:22Z"],["dc.date.issued","2013"],["dc.description.abstract","The importance of spatial scale for β-diversity has been shown in several studies, but it is unclear how spatial diversity patterns correlate among different organismic groups. We studied spatial diversity organization of plants and several trophic guilds of beetles in beech-dominated forests in two regions of Germany to test whether different trophic guilds are organized independently in space. We applied multiplicative diversity partitioning using a nested hierarchical design of four increasingly broader spatial levels (subplot, plot, forest class, region) and tested for correlations among trophic guilds by using Pearson product moment correlations and Mantel-tests. We observed similar general diversity patterns at different trophic guilds showing a high contribution of β-diversity to total γ-diversity and found β-diversity to be higher at different spatial scales and α-diversity to be lower than expected by random distributions of individuals. Results, however, partly depended on the weighting of rare and abundant species. Beta-diversity in our study was caused mainly by species spatial turnover rather than by nestedness. Correlations of α-diversity between trophic guilds were low whereas correlations of β-diversity above subplot level were high. Importantly, more strongly connected trophic guilds revealed not generally stronger relationships than less strongly connected guilds. Three important implications for conservation can be deduced from our results: (1) heterogeneity of beech forests at different spatial scales should be supported in conservation strategies to enhance biodiversity and related functions; (2) the observed high importance of spatial turnover in relation to nestedness implies a concentration of conservation efforts to a large number of not necessarily the richest sites, and (3) recommendation for particular conservation strategies (e.g. selection of priority sites for conservation at regional scale) based on single indicator taxa or functional guild is difficult because of the varied response of the species in our study."],["dc.identifier.doi","10.1016/j.biocon.2013.06.033"],["dc.identifier.gro","3148909"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/5547"],["dc.language.iso","en"],["dc.notes.intern","Wiegand Crossref Import"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.relation.issn","0006-3207"],["dc.relation.orgunit","Abteilung Ökosystemmodellierung"],["dc.subject.gro","Beetles"],["dc.subject.gro","Ecosystem function"],["dc.subject.gro","Multiplicative diversity partitioning"],["dc.subject.gro","Q-Metric"],["dc.subject.gro","Spatial scale"],["dc.subject.gro","Species turnover"],["dc.title","The importance of heterogeneity revisited from a multiscale and multitaxa approach"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]