Plant migration and persistence under climate change in fragmented landscapes: Does it depend on the key point of vulnerability within the lifecycle?

Renton, Michael; Childs, S. J.; Standish, Rachel J.; Shackelford, Nancy

doi:10.1016/j.ecolmodel.2012.07.005

Cited by 23 publications

(31 citation statements)

References 25 publications

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“…However, the rate of climate change will have a significant impact on the success of corridors to assist plant migration (Renton et al 2012(Renton et al , 2013. If rapid large-scale migrations are to be achieved principally via long-distance dispersal events then corridors may have limited impact in assisting such migrations (Pearson and Dawson 2005).…”

Section: Biodiversity Corridorsmentioning

confidence: 99%

“…Successful migration relies heavily upon the connectedness of populations across suitable environments, particularly in species with short dispersal distances (Pearson and Dawson 2005). Modelling studies predict that habitat fragmentation will have a large impact on the ability of plants to migrate across landscapes and that the connection of remnant fragments via corridors and restoration may greatly assist plant persistence (Higgins et al 2003;Renton et al 2012Renton et al , 2013. The landscape does not necessarily need to be continuous, but distances between populations or fragments need to be short enough to enable successful dispersal.…”

Section: A Connected Landscapementioning

confidence: 99%

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Constraints to and conservation implications for climate change adaptation in plants

2015

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Contemporary climate change is having widespread impacts on plant populations. Understanding how plants respond to this change is essential to our efforts to conserve them. The key climate responses of plant populations can be categorised into one of three types: migration, in situ adaptation, or extirpation. If populations are to avoid extirpation then migration and/or in situ adaptation is essential. In this review we first articulate the current and future constraints of plant populations, but trees in particular, to the different adaptation strategies (e.g. space availability, rate of change, habitat fragmentation, niche availability). Secondly, we assess the use of the most appropriate methods (e.g. natural environmental gradients, genome and transcriptome scans) for assessing and understanding adaptive responses and the capacity to adapt to future challenges. Thirdly, we discuss the best conservation approaches (e.g. assisted migration, biodiversity corridors, ex situ strategies) to help overcome adaptive constraints in plants. Our synthesis of plant, and particularly tree, responses and constraints to climate change adaptation, combined with the identification of conservation strategies designed to overcome constraints, will help deliver effective management actions to assist adaptation in the face of current and future climate change.

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Section: Biodiversity Corridorsmentioning

confidence: 99%

Section: A Connected Landscapementioning

confidence: 99%

Constraints to and conservation implications for climate change adaptation in plants

2015

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“…The approach assisted in identifying the key variables in the bioclimatic space, preceding and thus contributing to the mortality event. This deterministic methodology is consistent with others which use the response of plant functional traits to model their distribution [56,57] and persistence under variable climate scenarios [58,59].…”

Section: Gridded Climatologies and Bioclimate Analysismentioning

confidence: 49%

Bioclimatic Extremes Drive Forest Mortality in Southwest, Western Australia

Evans

Lyons

2013

Climate

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Extreme and persistent reductions in annual precipitation and an increase in the mean diurnal temperature range have resulted in patch scale forest mortality following the summer of 2010-2011 within the Forest study area near Perth, Western Australia. The impacts of 20 bioclimatic indicators derived from temperature, precipitation and of actual and potential evapotranspiration are quantified. We found that spatially aggregated seasonal climatologies across the study area show 2011 with an annual mean of 17.7 °C (± 5.3 °C) was 1.1 °C warmer than the mean over recent decades (1981-2011,-16.6 °C ± 4.6 °C) and the mean has been increasing over the last decade. Compared to the same period, 2010-2011 summer maximum temperatures were 1.4 °C (31.6 °C ± 2.0 °C) higher and the annual mean diurnal temperature range (T max −T min ) was 1.6 °C higher (14.7 °C ± 0.5 °C). In 2009, the year before the forest mortality began, annual precipitation across the study area was 69% less (301 mm ± 38 mm) than the mean of 1981-2010 (907 mm ± 69 mm). Using Système Pour l'Observation de la Terre mission 5 (SPOT-5) satellite imagery captured after the summer of 2010-2011 we map a broad scale forest mortality event across the Forested study area. This satellite-climatology based methodology provides a means of monitoring and mapping similar forest mortality eventsa critical contribution to our understanding the dynamical bioclimatic drivers of forest mortality events. OPEN ACCESSClimate 2013, 1 29

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“…New challenges exist for species trying to track suitable climate given the unprecedented rate of climate change ( Cunze et al, 2013 ) and the high level of landscape fragmentation ( Renton et al, 2013 ). In the case of S. kennedyana , the majority of watersheds no longer have natural hydrological regimes, which is important for creating critical habitat for the Atlantic Coastal Plain Flora (ACPF) taxa ( Wisheu and Keddy, 1989 ;Morris et al, 2002 ).…”

Section: Morphology -mentioning

confidence: 99%

Rethinking refugia: Tree topology, divergence dates, and demographic history trace the distribution of the endangered Plymouth gentian (Sabatia kennedyana) from the Pleistocene glaciation to present day

Suarez-Gonzalez

Sutton

Trant

et al. 2015

American J of Botany

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• Premise of study: Molecular population genetics is a powerful tool to infer how species responded to past environmental change. In the northern hemisphere, interest is increasing in how species responded to changes in ice coverage and temperature during the last glaciation maximum (LGM, between 18000–21000 yr ago) with a common assumption that glacial refugia were located at the southern edge of a species range.• Methods: We reconstructed the glacial and postglacial phylogeography of Sabatia kennedyana, a member of the Atlantic Coastal Plains Flora with a current distribution from Nova Scotia (NS) to South Carolina, using both cpDNA and nuclear markers. We also examined clinal variation in morphological traits, in particular relative investment in asexual vs sexual growth.• Key results: We find strong evidence that the species did not reside in southern glacial refugia, but rather in primary glacial refugia off the exposed continental shelf extending from Cape Cod and that this area was responsible for the founding of modern populations across the range from Nova Scotia (NS) to the United States. Additionally, based on the finding of higher cpDNA diversity and older cpDNA lineages in NS, we propose that multiple founder events occurred in NS, while only a single lineage gave rise to current populations in the United States.• Conclusions: By understanding how S. kennedyana responded to past shifts in climate and by identifying areas of high genetic diversity in the northern range edge, we discuss the potential response of the species to future climate change scenarios.

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Plant migration and persistence under climate change in fragmented landscapes: Does it depend on the key point of vulnerability within the lifecycle?

Cited by 23 publications

References 25 publications

Constraints to and conservation implications for climate change adaptation in plants

Constraints to and conservation implications for climate change adaptation in plants

Bioclimatic Extremes Drive Forest Mortality in Southwest, Western Australia

Rethinking refugia: Tree topology, divergence dates, and demographic history trace the distribution of the endangered Plymouth gentian (Sabatia kennedyana) from the Pleistocene glaciation to present day

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