PRE-HISPANIC-TO-COLONIAL DIETARY TRANSITIONS AT ETZATLAN, JALISCO, MEXICO

2012 ◽  
Vol 23 (2) ◽  
pp. 251-267 ◽  
Author(s):  
Judith F. Porcasi
Keyword(s):  
Dietary Patterns ◽  
Diversity Indices ◽  
Faunal Analysis ◽  
Large Mammals ◽  
Large Mammal ◽  
Dietary Breadth ◽  
Animal Remains ◽  
Early Colonial ◽  
Abundance And Diversity ◽  
Over Time

AbstractFaunal analysis of subsistence remains from four sites in the Etzatlan Basin in western central Mexico presents important contrasts between pre-Hispanic and colonial dietary patterns. Specific changes in animal remains are well correlated with the transition from pre-Hispanic to colonial occupations tracked along a statistically derived timeline in which ceramic evidence for the onset of colonization is found. Allometry is used to calculate faunal biomass, and abundance and diversity indices are used to define these dietary patterns relative to the timeline. There is a decrease in use of large mammals over time and an increased use of smaller mammals, birds, and reptiles/amphibians. In particular, a marked increase in exploitation of the most important native large mammal (for example, deer) is found during early colonial occupation. However, this bounty decreased appreciably during later periods, consistent with widening of dietary breadth by inclusion of less preferred resources.

scholarly journals Preclinical trial of a MAP4K4 inhibitor to reduce infarct size in the pig: does cardioprotection in human stem cell-derived myocytes predict success in large mammals?

2021 ◽  
Vol 116 (1) ◽  
Author(s):  
Maaike te Lintel Hekkert ◽  
Gary Newton ◽  
Kathryn Chapman ◽  
Rehan Aqil ◽  
Robert Downham ◽  
...  
Keyword(s):  
Stem Cell ◽  
Infarct Size ◽  
Clinical Success ◽  
Heart Tissue ◽  
Balloon Occlusion ◽  
Large Mammals ◽  
Preclinical Trial ◽  
Large Mammal ◽  
Lv Mass ◽  
Technical Issues

AbstractReducing infarct size (IS) by interfering with mechanisms for cardiomyocyte death remains an elusive goal. DMX-5804, a selective inhibitor of the stress-activated kinase MAP4K4, suppresses cell death in mouse myocardial infarction (MI), human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs), and 3D human engineered heart tissue, whose fidelity to human biology is hoped to strengthen the route to clinical success. Here, DMX-10001, a soluble, rapidly cleaved pro-drug of DMX-5804, was developed for i.v. testing in large-mammal MI. Following pharmacodynamic studies, a randomized, blinded efficacy study was performed in swine subjected to LAD balloon occlusion (60 min) and reperfusion (24 h). Thirty-six animals were enrolled; 12 were excluded by pre-defined criteria, death before infusion, or technical issues. DMX-10001 was begun 20 min before reperfusion (30 min, 60 mg/kg/h; 23.5 h, 17 mg/kg/h). At all times tested, beginning 30 min after the start of infusion, DMX-5804 concentrations exceeded > fivefold the levels that rescued hPSC-CMs and reduced IS in mice after oral dosing with DMX-5804 itself. No significant reduction occurred in IS or no-reflow corrected for the area at ischemic risk, even though DMX-10001 reduced IS, expressed in grams or % of LV mass, by 27%. In summary, a rapidly cleaved pro-drug of DMX-5804 failed to reduce IS in large-mammal MI, despite exceeding the concentrations for proven success in both mice and hPSC-CMs.

scholarly journals Biodiversity of Early Holocene large mammals from the territory of Bulgaria according to remains from archaeological sites

2019 ◽  
Vol 2 ◽  
Author(s):  
Nadezhda Karastoyanova
Keyword(s):  
Early Holocene ◽  
General Idea ◽  
Archaeological Sites ◽  
Large Mammals ◽  
General Picture ◽  
Wild Mammals ◽  
Animal Remains ◽  
Good Sample ◽  
Major Factors

Animal remains from archeological sites give a rather good sample of data, showing habitats and biodiversity during the early Holocene . In multiple settlements in the Eastern Balkans, there are numerous remains of wild mammals that were hunted by humans through the prehistory (7200-5800 BP). This gives a general idea of the habitats around and near the settlements. Such deposits of animal remains are the main source of data on fauna during this period and give us information on the processes leading to the extinction of some species. This paper analyzes more than 26000 animal remains (bones, horns, antlers and teeth) from large mammals from orders: Аrtiodactyla, Perissodactyla and Carnivora from 4 still unpublished deposits from Bulgaria. I summarize data from already published remains from 33 sites in East Balkans. These analyses provide a general picture of both habitats and biodiversity and some of the major factors that caused extinction of some large mammals in Bulgaria during the early Holocene.

Forty years of dietary studies on barn owl (Tyto alba) reveal long term trends in diversity metrics of small mammal prey

2018 ◽  
Vol 68 (2) ◽  
pp. 129-146 ◽  
Author(s):  
Giuliano Milana ◽  
Luca Luiselli ◽  
Giovanni Amori
Keyword(s):  
Species Richness ◽  
Relative Abundance ◽  
Negative Correlation ◽  
Linear Models ◽  
Prey Availability ◽  
Diversity Indices ◽  
Barn Owl ◽  
Tyto Alba ◽  
Local Conditions ◽  
Over Time

AbstractThe diet of predators is influenced by local conditions (e.g., characteristics of habitat and microhabitat, seasonality, prey availability) and therefore tends to change across time. In this paper, the diet composition of the barn owl (Tyto alba) in Italy was studied using a meta-analysis of 47 articles (covering 212 independent sites, with multiple surveys for some sites, thus giving a total of 290 datasets) between 1972 and 2012. General Linear Models were used to assess the effects of year and study site on four distinct diversity indices (species richness, dominance, Shannon-Weaver diversity and equitability). The year of data collection was a factor used in all analyses. Year had a greater effect than study site on all diversity indices, but the effect was not significant for the evenness and the species richness. However, dietary dominance increased significantly over the years, the Shannon-Weaver index of diversity decreased significantly over time, and equitability also decreased significantly over time. The relative abundance of various species of rodents did not increase/decrease progressively over the years, although there were inter-annual fluctuations. On the other hand, the relative abundance of insectivores tended to decrease with time, and there was a significantly negative correlation between year and the frequency of consumption of Sorex spp. and a marginally significant negative correlation for Crocidura leucodon.

Treaties and Treaty Making

2016 ◽  
Author(s):  
Colin G. Calloway
Keyword(s):  
United States ◽  
Nineteenth Century ◽  
American Indians ◽  
The United States ◽  
Nation State ◽  
Early Colonial ◽  
Over Time

This chapter surveys how treaty making involving American Indians developed and changed over time. Early colonial treaties involved a hybrid diplomacy of Native rituals and European protocols, and business was conducted with wampum and oratory as much as with pen and paper. Increasingly, treaties involved land cessions. The United States adopted many of the forms of colonial treaties but employed them primarily as instruments of dispossession and removal. In the nineteenth century, the expanding nation-state made treaties that confined Indian peoples to reservations and that also included measures to “civilize” the tribes. Although Congress ended treaty making in 1871, “agreements” continued to be signed and treaties continued to have the force of law. Treaties were contracts between sovereigns, and tribes have invoked treaties to reassert their rights in modern America.

scholarly journals Autochthonous faecal viral transfer (FVT) impacts the murine microbiome after antibiotic perturbation

BMC Biology ◽  
2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Lorraine A. Draper ◽  
Feargal J. Ryan ◽  
Marion Dalmasso ◽  
Pat G. Casey ◽  
Angela McCann ◽  
...  
Keyword(s):  
Antibiotic Treatment ◽  
Healthy Donor ◽  
Metagenomic Sequencing ◽  
Faecal Microbiota ◽  
Gut Flora ◽  
Pre Treatment ◽  
Abundance And Diversity ◽  
Viral Transfer ◽  
And Control ◽  
Over Time

Abstract Background It has become increasingly accepted that establishing and maintaining a complex and diverse gut microbiota is fundamental to human health. There are growing efforts to identify means of modulating and influencing the microbiota, especially in individuals who have experienced a disruption in their native microbiota. Faecal microbiota transplantation (FMT) is one method that restores diversity to the microbiota of an individual by introducing microbes from a healthy donor. FMT introduces the total microbial load into the recipient, including the bacteria, archaea, yeasts, protists and viruses. In this study, we investigated whether an autochthonous faecal viral transfer (FVT), in the form of a sterile faecal filtrate, could impact the recovery of a bacteriome disrupted by antibiotic treatment. Results Following antibiotic disruption of the bacteriome, test mice received an FVT harvested prior to antibiotic treatment, while control mice received a heat- and nuclease-treated FVT. In both groups of mice, the perturbed microbiome reverted over time to one more similar to the pre-treatment one. However, the bacteriomes of mice that received an FVT, in which bacteriophages predominate, separated from those of the control mice as determined by principal co-ordinate analysis (PCoA). Moreover, analysis of the differentially abundant taxa indicated a closer resemblance to the pre-treatment bacteriome in the test mice that had received an FVT. Similarly, metagenomic sequencing of the virome confirmed that faecal bacteriophages of FVT and control mice differed over time in both abundance and diversity, with the phages constituting the FVT persisting in mice that received them. Conclusions An autochthonous virome transfer reshaped the bacteriomes of mice post-antibiotic treatment such that they more closely resembled the pre-antibiotic microbiota profile compared to mice that received non-viable phages. Thus, FVT may have a role in addressing antibiotic-associated microbiota alterations and potentially prevent the establishment of post-antibiotic infection. Given that bacteriophages are biologically inert in the absence of their host bacteria, they could form a safe and effective alternative to whole microbiota transplants that could be delivered during/following perturbation of the gut flora.

On the Methodology of Faunal Analysis

1973 ◽  
Vol 38 (4) ◽  
pp. 432-439 ◽  
Author(s):  
Donald K. Grayson
Keyword(s):  
Archaeological Sites ◽  
Faunal Analysis ◽  
Reliable Analysis ◽  
Animal Remains ◽  
Minimum Number ◽  
Minimum Number Of Individuals ◽  
Minimum Numbers ◽  
Faunal Studies ◽  
Number Of Individuals ◽  
Proper Unit

AbstractAlthough faunal analysis has a long history in archaeological studies, little emphasis has been placed upon the development of methodologies which would allow the valid and reliable analysis of animal remains from archaeological sites. The most crucial decision which a faunal analyst must make as regards the statistical manipulation of his data concerns the proper unit to use in that manipulation. The 2 units which seem to have gained most popularity in faunal studies are discussed, as are the generally non-comparable results which stem from the various ways in which 1 of these units—the minimum number of individuals—has been applied. Finally, suggestions for the standardization of the use of minimum numbers in faunal analysis are made.

The effects of silvicultural disturbances on cryptogam diversity in the boreal-mixedwood forest

2002 ◽  
Vol 32 (1) ◽  
pp. 38-51 ◽  
Author(s):  
Steven G Newmaster ◽  
F Wayne Bell
Keyword(s):  
Species Richness ◽  
Species Abundance ◽  
Diversity Indices ◽  
Forest Harvesting ◽  
Aerial Application ◽  
Forest Diversity ◽  
Four Blocks ◽  
Abundance And Diversity ◽  
Species Richness And Abundance ◽  
And Function

In northern forests, cryptogams (spore producing plants) occupy a key position in forest ecosystem diversity and function. Forest harvesting and silvicultural practices have the potential to reduce cryptogam diversity. This project uses four blocks that were mechanically site prepared, planted with a single conifer species, and subsequently subjected to five conifer release treatments: (1) motor-manual cleaning, (2) mechanical brush cutting, (3) aerial application of triclopyr, (4) aerial application of glyphosate, and (5) control (untreated clearcut). Five 10 × 10 m subplots were installed in each of the five treatment plots and the uncut forest on the four blocks. Botanical surveys were conducted before and 1–5 years after treatments. Species richness and abundance, Shannon's and Heip's indices, and rank abundance diagrams clearly show that richness and abundance were affected by silvicultural treatments. Vegetation management treatments resulted in significant reductions in cryptogam diversity, to the point that only a few colonists and drought-tolerant species remained. Cryptogam diversity was ranked in the following order: forest > clearcut > mechanical clearing > herbicide treatment. Herbicide treatments had the greatest initial effect on species richness, species abundance, and diversity indices. Cryptogam diversity showed signs of recovery 5 years after treatments. Missed strips (untreated areas) within a clearcut provided a refuge for remnant communities of forest cryptogams that could play a key role in the rehabilitation forest diversity.

New evidence on the vertebrate fauna, stratigraphy and palaeobotany of the interglacial deposits at Swanton Morley, Norfolk

1980 ◽  
Vol 117 (6) ◽  
pp. 525-546 ◽  
Author(s):  
P. Coxon ◽  
A. R. Hall ◽  
A. Lister ◽  
A. J. Stuart
Keyword(s):  
Small Mammals ◽  
New Record ◽  
Large Mammals ◽  
Emys Orbicularis ◽  
Large Mammal ◽  
Plant Fossils ◽  
Trapa Natans ◽  
Organic Sediments ◽  
New Evidence

SummaryThe stratigraphy and palaeobotany of new in situ exposures of interglacial deposits at Swanton Morley, Norfolk are described. These organic sediments, which probably accumulated in a river back channel, are shown to cover pollen zones Ib to IIb of the Ipswichian interglacial. Macroscopic plant fossils include a new record for Trapa natans from subzone Ip IIb. Vertebrate remains from the new excavations, and from previous finds, have been pollen-dated. The Ip IIa fauna, the first recorded from this subzone, includes Emys orbicularis, small mammals including Microtus oeconomus, and some large mammals. Hippopotamus amphibies is recorded from early zone Ip III. Of particular interest are hazelnuts gnawed by Apodemus, and large mammal bones damaged by Crocuta.

scholarly journals Fungal Diversity in Multiple Post-harvest Aged Red Pine Stumps and Their Potential Influence on Heterobasidion Root Rot in Managed Stands Across Minnesota

2021 ◽  
Vol 2 ◽  
Author(s):  
Eric C. Otto ◽  
Benjamin W. Held ◽  
Trevor J. Gould ◽  
Robert A. Blanchette
Keyword(s):  
Biological Control Agent ◽  
Illumina Miseq ◽  
Diversity Indices ◽  
Control Agent ◽  
Red Pine ◽  
Similar Species ◽  
Native Range ◽  
Change Over Time ◽  
Phlebiopsis Gigantea ◽  
Over Time

Thinning operations that occur in managed red pine (Pinus resinosa) stands, create tree stumps that can serve as a habitat for fungi, especially Heterobasidion irregulare, the cause of a serious root disease. Different fungi can colonize stumps early and the community of fungi can change over time as initial fungal species become replaced. Samples were collected from both the native and non-native range of red pine from stumps that were cut at different time periods. Stumps that were harvested at 0–1, 2–3, 5–6, and 10–12 years before sampling were used to provide data on the diversity of fungi that colonize tree stumps and how these communities can change over time as well as how they influence colonization of H. irregulare. Traditional culturing methods and Illumina MiSeq sequencing were used to identify the fungi in the samples. Of particular interest was Phlebiopsis gigantea, which can colonize cut stumps and prevent H. irregulare from becoming established. Overall, P. gigantea was the most abundant fungus isolated and sequenced via Illumina MiSeq. Results show that Phlebiopsis gigantea was isolated from 90% of all stumps sampled for sites harvested within 3 years of sampling in the native range of red pine compared to 33% in the non-native range. For Illumina MiSeq, 5,940 total amplicon sequence variants (ASVs) were detected. P. gigantea represented 14% of the total reads and composed 19% of the reads in the native range and 8% in non-native range of red pine. Furthermore, P. gigantea represented 38% of the reads for stumps that were harvested within 3 years of sampling in the native range of red pine compared to 14% in the non-native range. These results help demonstrate that a higher amount of P. gigantea is present in the native range of red pine and could be acting as a native biological control agent. Additional fungi, including Resinicium bicolor, Hypochnicium cremicolor, Leptographium spp., and others identified at different cutting times are also discussed. Finally, different diversity indices revealed similar, but slightly higher diversity for southern sites via Shannon and Simpson Diversity indices. Beta diversity demonstrated a similar species composition in stumps harvested at different times with these stumps being grouped together based on harvesting years.

scholarly journals Effects of ship-breaking activities on the abundance and diversity of macrobenthos in Sitakundu Coast, Bangladesh

2020 ◽  
Vol 21 (11) ◽  
Author(s):  
Mohammad Belal Hossain ◽  
MD. ABU NOMAN ◽  
JAHANARA AKHTER LIPI ◽  
ABU HENA MUSTAFA KAMAL ◽  
MOHD HANAFI IDRIS
Keyword(s):  
Diversity Index ◽  
Anthropogenic Impacts ◽  
Benthic Communities ◽  
Diversity Indices ◽  
Dominant Group ◽  
Ecological Processes ◽  
Pollution Indicator ◽  
Ship Breaking ◽  
Distinct Grouping ◽  
Abundance And Diversity

Abstract. Lipi JA, Noman MDA, Hossain MB, Abu Hena MK, Idris MH. 2020. Effects of ship-breaking activities on the abundance and diversity of macrobenthos in Sitakundu Coast, Bangladesh. Biodiversitas 21: 5085-5093. To articulate the ecological processes or anthropogenic impacts, it is necessary to explore various distributional patterns of benthic communities. The study was conducted to investigate the variability of macrobenthos between a ship braking and non-ship-breaking area along the Sitakunda coast, Chittagong, Bangladesh. This is the first comprehensive study that addresses the effects of ship-breaking activities on the variability of benthic communities in the study area. Macrobenthos were sampled from two different regions namely Bhatiary (ship-breaking area) and Banshbaria (non-ship-breaking area/reference area) in two different time periods (April and July) for comparative analyses. During the study period, Polychaeta was the most dominant group comprising 60% of the total macrobenthos all over the study area. Macrobenthos abundance and diversity demonstrated strong spatial variability. The mean abundance varied from 3799.75±3452.28 ind./m2 to 4107.25±2743.6 ind./m2 from the ship-breaking to non-ship-breaking area. Similar to macrobenthos abundance, the diversity index (H′) (varied between 2.45 and 1.85), species richness (D) (varied between 1.99 and 1.04), and the number of taxa (varied between 17.25 and 9.25) were higher in the non-ship-breaking area compared to the ship-breaking area. Multivariate analyses, nMDS, and CCA plot showed a distinct grouping for different location. Besides, the diversity indices of the Polychaeta community, and the presence or absence of several pollution indicator taxa revealed that Bhatiary (the ship-breaking area) was confronting deleterious effects of ship-breaking activities.

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