6 Works

Data from: Avian cephalic vascular anatomy, sites of thermal exchange, and the rete ophthalmicum

William Ruger Porter, Lawrence M. Witmer & WM Ruger Porter
The general anatomy of avian cephalic blood vessels is well known and there are published details of their role in physiological thermoregulation. Unfortunately, the finer details of vascular pathways to and from sites of thermal exchange are not well known. Additionally, the role of the rete ophthalmicum (RO), a vascular heat exchanger in the temporal region, has been investigated in terms of brain temperature regulation, yet only the arteries have received substantial attention. Without anatomical...

Data from: Higher fungal diversity is correlated with lower CO2 emissions from dead wood in a natural forest

Chunyan Yang, Douglas A. Schaefer, Weijie Liu, Viorel D. Popescu, Chenxue Yang, Xiaoyang Wang, Chunying Wu & Douglas W. Yu
Wood decomposition releases almost as much CO2 to the atmosphere as does fossil-fuel combustion, so the factors regulating wood decomposition can affect global carbon cycling. We used metabarcoding to estimate the fungal species diversities of naturally colonized decomposing wood in subtropical China and, for the first time, compared them to concurrent measures of CO2 emissions. Wood hosting more diverse fungal communities emitted less CO2, with Shannon diversity explaining 26 to 44% of emissions variation. Community...

Data from: Demographic costs associated with differences in habitat space occupancy

Kelly A. Williams & Donald B. Miles
Delimiting the habitat characteristics describing the environmental conditions required by a species has become a critical tool for predicting organismal responses to environmental change. Grinnell emphasized the effects of environmental factors on the ability of a population to maintain a positive growth rate, yet few studies have included demographic or reproductive data in analyses of the Grinnellian niche. Identifying differences in habitat exploitation patterns in response to structural variation in the environment presents an incomplete...

Data from: A combined morphometric and phylogenetic revision of the late Ordovician brachiopod genera Eochonetes and Thaerodonta

Jennifer E. Bauer & Alycia L. Stigall
Systematic revision of the Late Ordovician brachiopod genera Eochonetes Reed, 1917 and Thaerodonta Wang, 1949 was conducted utilizing specimen-based morphometric and species-level phylogenetic analyses. Previous studies had recognized Thaerodonta and Eochonetes as either distinct taxonomic entities or synonyms. New multivariate and phylogenetic analyses confirm the synonymy of Thaerodonta with Eochonetes and provide a framework to assess evolutionary and ecological patterns within the clade. Multivariate analyses were employed to delineate species in morphospace and provided information...

Data from: Elevated CO2 and temperature increase soil C losses from a soybean-maize ecosystem

Christopher K. Black, Sarah C. Davis, Tara W. Hudiburg, Carl J. Bernacchi & Evan H. DeLucia
Warming temperatures and increasing CO2 are likely to have large effects on the amount of carbon stored in soil, but predictions of these effects are poorly constrained. We elevated temperature (canopy: +2.8 °C; soil growing season: +1.8 °C; soil fallow: +2.3 °C) for 3 years within the 9th–11th years of an elevated CO2 (+200 ppm) experiment on a maize–soybean agroecosystem, measured respiration by roots and soil microbes, and then used a process-based ecosystem model (DayCent)...

Data from: Vascular patterns in the heads of crocodilians: blood vessels and sites of thermal exchange

William Ruger Porter, Jayc C. Sedlmayr & Lawrence M. Witmer
Extant crocodilians are a highly apomorphic archosaur clade that is endothermic, yet often achieve large body sizes that can be subject to higher heat loads. Therefore, the anatomical and physiological roles that blood vessels play in crocodilian thermoregulation need further investigation to better understand how crocodilians establish and maintain cephalic temperatures and regulate neurosensory tissue temperatures during basking and normal activities. The cephalic vascular anatomy of extant crocodilians, particularly American alligator (Alligator mississippiensis) was investigated...

Registration Year

  • 2016
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  • Ohio University
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  • Louisiana State University Health Sciences Center New Orleans
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  • University of Tennessee at Knoxville
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  • Xishuangbanna Tropical Botanical Garden
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  • University of Idaho
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  • University of Illinois at Urbana Champaign
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  • Institute of Zoology
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