Oscillayers: A dataset for the study of climatic oscillations over Plio‐Pleistocene time‐scales at high spatial‐temporal resolution

Gamisch, Alexander

doi:10.1111/geb.12979

Cited by 47 publications

(62 citation statements)

References 45 publications

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“…This can be extended to any part of the world if the palaeoclimate information is available or can be estimated using interpolations of isotope data. Gamisch (2019) provides global palaeoclimate interpolations for all 19 BIOCLIM variables at 10,000 year intervals over the last 5.4 million years. Additionally, our method takes advantage of large datasets to infer specifics of a single lineage.…”

Section: Discussionmentioning

confidence: 99%

“…We interpolated palaeoclimate maps at 1 Myr intervals as in Lawing et al. (2016) and Gamisch (2019). Briefly, we interpolated between palaeoclimate general circulation models using stable oxygen isotope curves derived from benthic foraminifera (Ruddiman, Raymo, Martinson, Clement, & Backman, 1989).…”

Section: Methodsmentioning

confidence: 99%

“…This yielded 9,699 geographical points across North America for which we interpolated the palaeoclimate. Gamisch (2019) provides a detailed description of the interpolation procedure.…”

Section: Methodsmentioning

confidence: 99%

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Reconstructing historical shifts in suitable habitat of Sceloporus lineages using phylogenetic niche modelling

Rivera

Lawing

Martins

2020

Journal of Biogeography

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Aim: We tested whether we could detect geographical shifts in modelled-suitable habitat. We aim to enhance phylogenetic niche models of past suitable habitats for Sceloporus lineages by integrating modern and fossil occurrences with ecological and phylogenetic comparative modelling methods. Specifically, we hypothesized that our integrated approach is sensitive enough to detect geographical shifts in suitable habitat between lineages and through evolutionary time. Location: North America. Taxon: Sceloporus lizards. Methods: We used extant and fossil occurrence data, general circulation models of palaeoclimate, climate envelope modelling and phylogenetic comparative methods to reconstruct past suitable climates for Sceloporus lizards over the last 20 million years, and then visualized the geographical locations of individual lineages using multivariate environmental similarity surfaces (MESS) maps. Results: We were able to reconstruct ancestral suitable climate for Sceloporus lineages with sufficient resolution to identify shifts in geographical location between lineages. We found that large shifts in climate regimes drove the expansion and contraction of suitable habitat through time. We found a positive association between tectonic events, like mountain uplift, and lineage diversification in the Sceloporus clade. Mountain uplift also facilitated the emergence of open grassland habitat, which excluded many Sceloporus species. Main conclusions: Our approach was sensitive enough to detect differences in geographical location of suitable habitat across lineages and through evolutionary time. Doing so is a critical first step to tracking the evolutionary ecology of individual taxa over long periods of evolutionary time, and to inferring which species co-existed in which locations. Such inferences would allow for more precise predictions of current and future ecological needs for conservation efforts, and to inform efforts to mitigate climate change.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Reconstructing historical shifts in suitable habitat of Sceloporus lineages using phylogenetic niche modelling

Rivera

Lawing

Martins

2020

Journal of Biogeography

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“…This implies that morphotypes now found in wetter areas should have prevailed there in the past. Northern California and Oregon have had no change in precipitation or have become wetter over the same time period (Boxt, Raab, Davis, & Pope, 1999;Collins et al, 2006;Diffenbaugh & Ashfaq, 2007;Gamisch, 2019;Kirby, Lund, Anderson, & Bird, 2007;Lorenz et al, 2016;Mock & Brunelle-Daines, 1999;Thompson, Schultze-Lam, Beveridge, & DesMarais, 1997)…”

Section: Fossil Localitiesmentioning

confidence: 99%

Linking patterns of intraspecific morphology to changing climates

McGuire

Lauer

2020

Journal of Biogeography

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Aim: This study examines how climate shaped Microtus californicus (Rodentia: Arvicolinae) ecomorphology throughout the Quaternary. It tests three hypotheses: (a) climate corresponds with consistent shape variation in M. californicus dentition; (b) Quaternary warming and drying trends caused M. californicus morphotypes to predictably shift in range through time and (c) Quaternary warming and drying led to predictable changes in tooth morphological variation. Finally, we discuss how shifts in climate-linked morphological variation may affect the potential of M. californicus to react to future climate change. Location: Western United States. Taxon: Microtus californicus (Peale, 1848). Methods: Geometric morphometrics and partial least squares analyses were used to discern how climate contributes to consistent variation in the shapes of the M. californicus lower first molar (m1), validated for the full toothrow. We further corroborate this relationship, reconstructing precipitation at fossil localities using m1 morphology and comparing those values to palaeoclimate-model-derived precipitations. Disparity analyses and a MANOVA were performed to examine changes in variation and whether a shift in tooth shape occurred through time. Results: Microtus californicus m1 and toothrow shapes are narrower and more curved in cooler, wetter climates. Morphology-based palaeoclimate reconstructions align with model-based palaeoclimate estimations. When time averaging is accounted for, M. californicus demonstrates a 12% reduction in variation from fossil to presentday specimens, and these changes in tooth shape correspond with climate-related morphotypes. Main conclusions: As California became drier and hotter since the late Pleistocene, M. californicus dental morphology generally tracked these changes by adapting to the consumption of rougher vegetation in drier environments. This resulted in the loss of some high-precipitation morphotypes, indicating that ecomorphology, often observed at the species and community levels, translates to intraspecific variation and dynamically changes in response to changing climates. The loss of climate-linked morphological variation since the late Pleistocene may limit the ability of M. californicus to respond to future changes in climate. These findings portend that other species may have experienced similar losses in adaptability.

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“…We located sites in Crete that are climatically stable (sensu Owens and Guralnick, 2019) for the past 4 My, using paleoclimatic data obtained from Brown et al (2018) and Gamisch (2019), the framework of Owens and Guralnick (2019) and the `climateStability´ 0.1.1 package (Owens, 2019). Climate refugia as designated here refer to macro-refugia according to Ashcroft (2010).…”

Section: Climate Refugiamentioning

confidence: 99%

Management implications based on diversity patterns under climate change scenarios in a continental island biodiversity hotspot

Kougioumoutzis

Kokkoris

Panitsa

et al. 2020

Preprint

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In the Anthropocene era, climate change poses a great challenge in environmental management and decision-making for species and habitat conservation. To support decision-making, many studies exist regarding the expected vegetation changes and the impacts of climate change on European plants, yet none has investigated how climate change will affect the extinction risk of the entire endemic flora of an island biodiversity hotspot, with intense human disturbance. Our aim is to assess, in an integrated manner, the impact of climate change on the biodiversity and biogeographical patterns of Crete and to provide a case-study upon which a cost-effective and climate-smart conservation planning strategy might be set. We employed a variety of macroecological analyses and estimated the current and future biodiversity, conservation and extinction hotspots in Crete, as well as the factors that may have shaped these distribution patterns. We also evaluated the effectiveness of climate refugia and the NATURA 2000 network (PAs) on protecting the most vulnerable species and identified the taxa that should be of conservation priority based on the Evolutionary Distinct and Globally Endangered (EDGE) index, during any environmental management process. The highlands of Cretan mountain massifs have served as both diversity cradles and museums, due to their stable climate and high topographical heterogeneity. They are also identified as biodiversity hotspots, as well as areas of high conservation and evolutionary value, due their high EDGE scores. Due to the 'escalator to extinction' phenomenon and the subsequent biotic homogenization, these areas are projected to become diversity 'deathzones' in the near future and should thus be prioritized in terms of conservation efforts and by decision makers. In-situ conservation focusing at micro-reserves and ex-situ conservation practices should be considered as an insurance policy against such biodiversity losses, which constitute cost-effective conservation measures. Scientists and authorities should aim the conservation effort at areas with overlaps among PAs and climate refugia, characterized by high diversity and EDGE scores. These areas may constitute Anthropocene refugia. Thus, this climate-smart, cost-effective conservationprioritization planning will allow the preservation of evolutionary heritage, trait diversity and future services for human well-being and acts as a pilot for similar regions worldwide.

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Oscillayers: A dataset for the study of climatic oscillations over Plio‐Pleistocene time‐scales at high spatial‐temporal resolution

Cited by 47 publications

References 45 publications

Reconstructing historical shifts in suitable habitat of Sceloporus lineages using phylogenetic niche modelling

Reconstructing historical shifts in suitable habitat of Sceloporus lineages using phylogenetic niche modelling

Linking patterns of intraspecific morphology to changing climates

Management implications based on diversity patterns under climate change scenarios in a continental island biodiversity hotspot

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