Reciprocal extrapolation of species distribution models between two islands – Specialists perform better than generalists and geological data reduces prediction accuracy

Goedecke, Florian; Marcenò, Corrado; Guarino, Riccardo; Jahn, Ralf; Bergmeier, Erwin

doi:10.1016/j.ecolind.2019.105652

Cited by 9 publications

(4 citation statements)

References 83 publications

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“…However, support for the hypothesis that the isolated location of islands is ecologically important, derives from the observation that several Mediterranean islands feature unique post-glacial vegetation histories that are lacking on other islands or on the Mediterranean mainland (see Gambin et al 2016;Burjachs et al 2017). This palaeoecological finding may explain the presence of island-specific shifts of niches (Goedecke et al 2020).…”

Section: Environmental and Climatic Conditions And Their Effect On Vegetation And Fire Regimementioning

confidence: 65%

8,000 years of climate, vegetation, fire and land-use dynamics in the thermo-mediterranean vegetation belt of northern Sardinia (Italy)

Pedrotta

Gobet

Schwörer

et al. 2021

Veget Hist Archaeobot

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Knowledge about the vegetation history of Sardinia, the second largest island of the Mediterranean, is scanty. Here, we present a new sedimentary record covering the past ~ 8,000 years from Lago di Baratz, north-west Sardinia. Vegetation and fire history are reconstructed by pollen, spores, macrofossils and charcoal analyses and environmental dynamics by high-resolution element geochemistry together with pigment analyses. During the period 8,100–7,500 cal bp, when seasonality was high and fire and erosion were frequent, Erica arborea and E. scoparia woodlands dominated the coastal landscape. Subsequently, between 7,500 and 5,500 cal bp, seasonality gradually declined and thermo-mediterranean woodlands with Pistacia and Quercus ilex partially replaced Erica communities under diminished incidence of fire. After 5,500 cal bp, evergreen oak forests expanded markedly, erosion declined and lake levels increased, likely in response to increasing (summer) moisture availability. Increased anthropogenic fire disturbance triggered shrubland expansions (e.g. Tamarix and Pistacia) around 5,000–4,500 cal bp. Subsequently around 4,000–3,500 cal bp evergreen oak-olive forests expanded massively when fire activity declined and lake productivity and anoxia reached Holocene maxima. Land-use activities during the past 4,000 years (since the Bronze Age) gradually disrupted coastal forests, but relict stands persisted under rather stable environmental conditions until ca. 200 cal bp, when agricultural activities intensified and Pinus and Eucalyptus were planted to stabilize the sand dunes. Pervasive prehistoric land-use activities since at least the Bronze Age Nuraghi period included the cultivation of Prunus, Olea europaea and Juglans regia after 3,500–3,300 cal bp, and Quercus suber after 2,500 cal bp. We conclude that restoring less flammable native Q. ilex and O. europaea forest communities would markedly reduce fire risk and erodibility compared to recent forest plantations with flammable non-native trees (e.g. Pinus, Eucalyptus) and xerophytic shrubland (e.g. Cistus, Erica).

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Section: Environmental and Climatic Conditions And Their Effect On Vegetation And Fire Regimementioning

confidence: 65%

8,000 years of climate, vegetation, fire and land-use dynamics in the thermo-mediterranean vegetation belt of northern Sardinia (Italy)

Pedrotta

Gobet

Schwörer

et al. 2021

Veget Hist Archaeobot

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“…1). Although biogeographic patterns in edaphic island systems have been studied for a few decades (Kruckeberg 1991, Tapper et al 2014, Goedecke et al 2020), the incorporation of ecological insights related to habitat specialization (Horsák et al 2012, Horsáková et al 2018, Ottaviani et al 2020) and isolation components (Diver 2007, Weigelt and Kreft 2013, Carter et al 2020) may improve our understanding of the effect of insularity on edaphic island biota. Indeed, island size and isolation are usually studied together (MacArthur and Wilson 1967, Lomolino 2000aa, Whittaker et al 2008).…”

Section: Defining Insularity For Edaphic Islandsmentioning

confidence: 99%

“…Within such ‘terrestrial archipelagos', we may expect that edaphic islands with the largest size and highest specialist species richness will putatively serve as species sources for the rest of edaphic islands. Although matrix‐derived species also occur on edaphic islands, they are expected to be less sensitive to the differences in edaphic conditions between the island and the landscape matrix, thus experiencing less isolation than specialists (Horsák et al 2018, Horsáková et al 2018, Dembicz et al 2020, Goedecke et al 2020) (Fig. 1).…”

Section: Defining Insularity For Edaphic Islandsmentioning

confidence: 99%

What defines insularity for plants in edaphic islands?

et al. 2021

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The theory of island biogeography postulates that size and isolation are key drivers of biodiversity on islands. This theory has been applied not only to true (e.g. oceanic) islands but also to terrestrial island‐like systems (e.g. edaphic islands). Recently, a debate has opened as to whether terrestrial island‐like systems function like true islands. However, identifying the effect of insularity in terrestrial systems is conceptually and methodologically challenging because recognizing species source(s) and measuring isolation is not as straightforward as for true islands. We contribute to the debate by proposing an approach to contextualize the definition of insularity and to identify the role of isolation in terrestrial island‐like systems. To test this approach, we explored the relationship between insularity predictors and specialist species richness of edaphic islands in three systems in Europe (spring fens, mountaintops, and outcrops). We detected that insularity affected specialist richness of edaphic islands through island size and target effect (i.e. an emergent property of islands depending on their isolation and size). As predicted by the Theory of Island Biogeography, species richness decreased with increasing isularity. Given the comprehensiveness and ease of implementation of our approach, we encourage its extension to other island‐like systems.

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“…Note that we only use these SDMs to get an estimation of the native climatic conditions of each of the studied alien plant species and did not extrapolate the results of these SDMs to predict their distribution in the introduced range. This exempts us from the issue that predictions of species distribution models in invaded ranges may suffer from low accuracy due, for example, to differences in climatic preferences of species between their native and invaded ranges (Atwater et al, 2018;Goedecke et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Woody invaders from contrasted climatic origins distribute differently across the urban-to-rural gradient in oceanic Europe – Is it trait-related?

Géron

Lembrechts

Nijs

et al. 2022

Urban Forestry & Urban Greening

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Reciprocal extrapolation of species distribution models between two islands – Specialists perform better than generalists and geological data reduces prediction accuracy

Cited by 9 publications

References 83 publications

8,000 years of climate, vegetation, fire and land-use dynamics in the thermo-mediterranean vegetation belt of northern Sardinia (Italy)

8,000 years of climate, vegetation, fire and land-use dynamics in the thermo-mediterranean vegetation belt of northern Sardinia (Italy)

What defines insularity for plants in edaphic islands?

Woody invaders from contrasted climatic origins distribute differently across the urban-to-rural gradient in oceanic Europe – Is it trait-related?

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