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Peter D. Roopnarine
California Academy of Sciences
PaleontologyEcologyExtinction eventExtinctionBiology
88Publications
21H-index
2,276Citations
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Publications 85
Newest
#1Hannah M. Palmer (UC Davis: University of California, Davis)
#2Tessa M. Hill (UC Davis: University of California, Davis)H-Index: 25
Last. Jonas T. Donnenfield (UC Davis: University of California, Davis)
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Abstract. Microfossil assemblages provide valuable records to investigate variability in continental margin biogeochemical cycles, including dynamics of the oxygen minimum zone (OMZ). Analyses of modern assemblages across environmental gradients are necessary to understand relationships between assemblage characteristics and environmental factors. Five cores were analyzed from the San Diego margin (32 ∘ 42 ′ 00 ′′ N, 117 ∘ 30 ′ 00 ′′ W; 300–1175 m water depth) for core top benthic foraminiferal ...
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#1James SaulsburyH-Index: 2
#2David K. MossH-Index: 3
Last. Peter D. RoopnarineH-Index: 21
view all 13 authors...
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#1Hannah M. Palmer (UC Davis: University of California, Davis)
#2Tessa M. Hill (UC Davis: University of California, Davis)H-Index: 25
Last. Jonas T. Donnenfield (UC Davis: University of California, Davis)
view all 6 authors...
Abstract. Microfossil assemblages provide valuable records to investigate variability in continental margin biogeochemical cycles, including dynamics of the oxygen minimum zone (OMZ). Analyses of modern assemblages across environmental gradients are necessary to understand relationships between assemblage characteristics and environmental factors. Here, we analyzed five cores from the San Diego Margin (32°42'00'' N, 117°30'00'' W, 300–1175 m water depth) for core top benthic foraminiferal assemb...
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Last. Peter D. RoopnarineH-Index: 21
view all 5 authors...
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Last. Peter D. RoopnarineH-Index: 21
view all 5 authors...
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#1James Saulsbury (UM: University of Michigan)H-Index: 2
#2David K. Moss (SHSU: Sam Houston State University)H-Index: 3
Last. Seth Finnegan (University of California, Berkeley)H-Index: 23
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Organismal metabolic rates reflect the interaction of environmental and physiological factors. Thus, calcifying organisms that record growth history can provide insight into both the ancient environments in which they lived and their own physiology and life history. However, interpreting them requires understanding which environmental factors have the greatest influence on growth rate and the extent to which evolutionary history constrains growth rates across lineages. We integrated satellite me...
3 CitationsSource
#1Ashley A. Dineen (California Academy of Sciences)H-Index: 5
#2Peter D. Roopnarine (California Academy of Sciences)H-Index: 21
Last. Margaret L. Fraiser (UWM: University of Wisconsin–Milwaukee)H-Index: 18
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The Permo-Triassic mass extinction (PTME) is often implicated in the transition from the Paleozoic evolutionary fauna (PEF) to the modern evolutionary fauna (MEF). However, the exact timing and det...
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#1Cheewarat Printrakoon (Kasetsart University)H-Index: 2
#2Peter D. Roopnarine (California Academy of Sciences)H-Index: 21
Last. Thamasak Yeemin (Ramkhamhaeng University)H-Index: 9
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The ecology of the family Pinnidae was studied by sampling three pinnid species from 36 sampling sites across four different microhabitats in the Gulf of Thailand. The species spatial distributions were mostly uniform, with some populations having random distributions. Species abundances differed between sandy and coral habitats according to non-metric multi-dimension scaling analyses. Although the Gulf of Thailand is a relatively small geographic area, habitats are varied enough to provide vari...
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#1Peter D. Roopnarine (China University of Geosciences)H-Index: 21
#2Kenneth D. Angielczyk (FMNH: Field Museum of Natural History)H-Index: 30
Last. Ashley A. Dineen (California Academy of Sciences)H-Index: 5
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Abstract The geological persistence of biotic assemblages and their reorganization or destruction by mass extinctions are key features of long-term macroevolutionary and macroecological patterns in the fossil record. These events affected biotic history disproportionately and left permanent imprints on global biodiversity. Here we hypothesize that the geological persistence and incumbency of paleocommunities and taxa are maintained by patterns of biotic interactions that favour the ecological pe...
2 CitationsSource
#1Ashley A. DineenH-Index: 5
#3Peter D. RoopnarineH-Index: 21
view all 4 authors...
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