Climate and vegetation since the Last Interglacial (MIS 5e) in a putative glacial refugium, northern Idaho, USA

Herring, Erin M.; Gavin, Daniel G.

doi:10.1016/j.quascirev.2015.03.028

Cited by 15 publications

(16 citation statements)

References 72 publications

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“…Gray jay populations in the IMW group contain high levels of genetic diversity and are genetically isolated from adjacent populations, a pattern suggestive of long‐term isolation. The Clearwater refugium has been suggested as a refugium for other species in the area (Godbout et al., ; Shafer et al., ), including emerging pollen evidence for Picea species (Herring & Gavin, ). While our mtDNA data support isolation, the paleodistribution modeling data do not show evidence of suitable gray jay habitat in the area 21 kya, though highly suitable habitat likely existed in this area during the LIG.…”

Section: Discussionmentioning

confidence: 99%

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Multilocus genetic analyses and spatial modeling reveal complex population structure and history in a widespread resident North American passerine (Perisoreus canadensis)

Dohms

Graham

Burg

2017

Ecology and Evolution

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An increasing body of studies of widely distributed, high latitude species shows a variety of refugial locations and population genetic patterns. We examined the effects of glaciations and dispersal barriers on the population genetic patterns of a widely distributed, high latitude, resident corvid, the gray jay (Perisoreus canadensis), using the highly variable mitochondrial DNA (mtDNA) control region and microsatellite markers combined with species distribution modeling. We sequenced 914 bp of mtDNA control region for 375 individuals from 37 populations and screened seven loci for 402 individuals from 27 populations across the gray jay range. We used species distribution modeling and a range of phylogeographic analyses (haplotype diversity, ΦST, SAMOVA, F ST, Bayesian clustering analyses) to examine evolutionary history and population genetic structure. MtDNA and microsatellite markers revealed significant genetic differentiation among populations with high concordance between markers. Paleodistribution models supported at least five potential areas of suitable gray jay habitat during the last glacial maximum and revealed distributions similar to the gray jay's contemporary during the last interglacial. Colonization from and prolonged isolation in multiple refugia is evident. Historical climatic fluctuations, the presence of multiple dispersal barriers, and highly restricted gene flow appear to be responsible for strong genetic diversification and differentiation in gray jays.

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Section: Discussionmentioning

confidence: 99%

“…The Clearwater refugium has been suggested as a refugium for other species in the area (Godbout et al, 2008;Shafer et al, 2010), including emerging pollen evidence for Picea species (Herring & Gavin, 2015).…”

Section: Lgm Refugia and Patterns Of Postglacial Colonizationmentioning

confidence: 99%

Multilocus genetic analyses and spatial modeling reveal complex population structure and history in a widespread resident North American passerine (Perisoreus canadensis)

Dohms

Graham

Burg

2017

Ecology and Evolution

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“…Our lowermost pollen samples from 103.7 to 99.4 ka also show NAP (average = 34.2·10 4 grains/cm 2 /year) exceeding AP (average = 25.5·10 4 grains/cm 2 /year) during MIS 5d–5c. This “sage expansion” may signal climate conditions that induced tree line migration toward lower elevations, as documented in other long subalpine records in the North American West (e.g., Star Marsh, Herring & Gavin, ).…”

Section: Discussionmentioning

confidence: 63%

Southern California Vegetation, Wildfire, and Erosion Had Nonlinear Responses to Climatic Forcing During Marine Isotope Stages 5–2 (120–15 ka)

Glover

Chaney

Kirby

et al. 2020

Paleoceanog and Paleoclimatol

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A multiproxy record from Baldwin Lake, San Bernardino Mountains, allowed us to examine variation and relationships between erosion, wildfire, vegetation, and climate in subalpine Southern California from 120 to 15 ka. Bulk organics, biogenic silica, and molar C:N data were generally antiphased with magnetic and trace element data and displayed long‐term (105 year) shifts between autochthonous and allocthonous deposition. This was most pronounced during Marine Isotope Stage (MIS) 5, and we hypothesize that local summer insolation was the primary driver for Baldwin Lake's productive and unproductive lake state alternations. Wildfire history was inferred from charcoal concentrations and vegetation change from pollen. Relationships between these ecological processes, basin deposition, and summer insolation were often nonlinear. Sagebrush expansion, wildfire, and weak basin weathering characterized MIS 4, while during MIS 2, the basin was highly erosive, rarely burned, and the forest was impacted by shifts in Southern Californian hydroclimate. Despite coniferous forest cover throughout MIS 3, submillennial oscillations in charcoal, pollen, and bulk organic content occurred, consistent with pollen records from Eurasia's Mediterranean biome that span multiple glacial‐interglacial cycles. Highly resolved global CO2 records and sea surface temperatures in key regions of the Pacific show no apparent relationship to these landscape conditions, and we suggest submillennial hydroclimatic variability as a potential driver. Highly resolved long pollen records from Southern California are an urgent research need to better understand the finer‐scale (≤103 year) interactions between past vegetation, wildfire, and erosion, given the current natural disaster risks that 21st century climate change poses to both human and ecological communities.

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“…That does not suggest that all portions of the basin were amenable to westslope cutthroat trout throughout this or earlier glacial cycles. Pollen core records from near the headwaters indicate a cold, arid climate with vegetation dominated by sagebrush, and that western red cedar Thuja plicata, currently a dominant forest overstory species typical of mesic, montane environments, did not colonize the basin until the last 5 ka (Herring and Gavin 2015). Moreover, mountain glaciers would have been prevalent in the higher ranges, constraining westslope cutthroat trout to the lower portions of many watersheds until conditions permitted them to colonize these areas, perhaps from multiple locations within the basin.…”

Section: Discussionmentioning

confidence: 99%

The phylogeography of westslope cutthroat trout

Young

McKelvey

Jennings

et al. 2017

Preprint

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Climate and vegetation since the Last Interglacial (MIS 5e) in a putative glacial refugium, northern Idaho, USA

Cited by 15 publications

References 72 publications

Multilocus genetic analyses and spatial modeling reveal complex population structure and history in a widespread resident North American passerine (Perisoreus canadensis)

Multilocus genetic analyses and spatial modeling reveal complex population structure and history in a widespread resident North American passerine (Perisoreus canadensis)

Southern California Vegetation, Wildfire, and Erosion Had Nonlinear Responses to Climatic Forcing During Marine Isotope Stages 5–2 (120–15 ka)

The phylogeography of westslope cutthroat trout

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