scholarly journals Phylogenetic analysis of Michigan’s freshwater sponges (Porifera, Spongillidae) using extended COI mtDNA sequences

2020 ◽  
Author(s):  
Stephen H. Kolomyjec ◽  
Roger A. Willford ◽  
Keyword(s):  
Phylogenetic Analysis ◽  
Great Lakes ◽  
Phylogenetic Relationships ◽  
Undergraduate Research ◽  
Great Lakes Region ◽  
Research Experience ◽  
Mtdna Sequences ◽  
Freshwater Sponges ◽  
Coi Mtdna ◽  
The North

AbstractKolomyjec et al. (2020). Phylogenetic analysis of Michigan’s freshwater sponges (Porifera, Spongillidae) using extended COI mtDNA sequences. – Zoologica Scripta, 00, 000-000. The phylogenetic relationships of eight species of freshwater sponges sampled throughout the State of Michigan in the North American Great Lakes region were examined as part of a Course-based Undergraduate Research Experience (CURE). An extended version of the standard cytochrome oxidase subunit I (COI) metazoan DNA was used for sequencing and Bayesian phylogenetic inference. The extended gene region (COI-ext) produces a 1,200 bp amplicon instead of the standard 640 bp fragment which compensates for the standard amplicon’s low informatics value in Phylum Porifera. The species examined clustered into strongly supported monophyletic species groups within the family Spongillidae. This study represents the first look at the phylogenetic relationships of freshwater sponges in the Great Lakes Region.Per Kolomyjec, College of Science and the Environment, Lake Superior State University, 650 W Easterday Ave., Sault Sainte Marie, MI 49783, USA. E-mail [email protected]

scholarly journals Effects of freshwater blue spaces may be beneficial for mental health: A first, ecological study in the North American Great Lakes region

PLoS ONE ◽  
2019 ◽  
Vol 14 (8) ◽  
pp. e0221977 ◽  
Author(s):  
Amber L. Pearson ◽  
Ashton Shortridge ◽  
Paul L. Delamater ◽  
Teresa H. Horton ◽  
Kyla Dahlin ◽  
...  
Keyword(s):  
Mental Health ◽  
Great Lakes ◽  
North American ◽  
Ecological Study ◽  
Great Lakes Region ◽  
The North ◽  
North American Great Lakes

Revision of the North American genus Scirites (Araneae, Linyphiidae)

Zootaxa ◽  
2007 ◽  
Vol 1460 (1) ◽  
pp. 47-58 ◽  
Author(s):  
NADINE DUPÉRRÉ ◽  
PIERRE PAQUIN
Keyword(s):  
Great Lakes ◽  
North American ◽  
Type Species ◽  
Morphological Analysis ◽  
Washington State ◽  
Great Lakes Region ◽  
Widespread Species ◽  
Distribution Maps ◽  
The North ◽  
Sphagnum Bogs

The genus Scirites Bishop & Crosby (1938) is revised and now includes Scirites pectinatus (Emerton 1911) the type species, and Scirites finitimus n.sp. Diagnoses, descriptions, locality records, habitat information and distribution maps are given for both species. A morphological analysis places the genus in the distal erigonine clade of Miller & Hormiga (2004) and sister to (Tapinocyba (Ceratinops + Parapelecopsis). Scirites pectinatus is a widespread species occurring mostly north of the 40th parallel; S. finitimus has been collected from sphagnum bogs mostly in the Great Lakes region with a single isolated collection in Washington state.

Were Bifaces used as Mobile Cores by Clovis Foragers in the North American Lower Great Lakes Region? An Archaeological Test of Experimentally Derived Quantitative Predictions

2013 ◽  
Vol 78 (1) ◽  
pp. 166-180 ◽  
Author(s):  
Metin I. Eren ◽  
Brian N. Andrews
Keyword(s):  
Great Lakes ◽  
Positive Relationship ◽  
Negative Relationship ◽  
Great Lakes Region ◽  
Flake Thickness ◽  
The North ◽  
Strong Positive Relationship ◽  
The Mean ◽  
Experimental Replication ◽  
Mitigating Behavior

AbstractThe notion that Paleoindians used bifaces as “mobile cores” is widespread in Late Pleistocene lithic research, although it can be difficult to test empirically. Here, we use experimental replication to establish two quantitative predictions that would be indicative of biface-core transport. If bifaces are being used as mobile cores, then we should see among a group of sites of varying toolstone procurement distances (a) a negative relationship between toolstone procurement distance and the mean unifacial tool maximum-thickness value from each site; and (b) a negative relationship between toolstone procurement distance and the variability (standard deviation) of maximum flake thickness values from each site. We then test these predictions against data from six Clovis sites of varying toolstone procurement distance in the Lower Great Lakes region. The results show that both sets of data possess a strong, positive relationship with increasing toolstone procurement distance, which is inconsistent with the notion that biface-cores were transported. Since the Clovis presence in the Lower Great Lakes is widely acknowledged to be a colonization pulse, we conclude that the lack of biface-core transport there is an economizing and risk-mitigating behavior consistent with the models of Kuhn (1994) and Meltzer (2002, 2003, 2004).

scholarly journals Variation in individual autumn migration and winter paths of Great Lakes red-headed woodpeckers (Melanerpes erythrocephalus)

2020 ◽  
Vol 7 (1) ◽  
pp. 9-18
Author(s):  
R. Kyle Pagel ◽  
Elena H. West ◽  
Andrew W. Jones ◽  
Henry M. Streby
Keyword(s):  
Great Lakes ◽  
Breeding Site ◽  
Great Lakes Region ◽  
Return Rates ◽  
The North ◽  
Melanerpes Erythrocephalus ◽  
Closed Canopy ◽  
Conservation Plans ◽  
Autumn And Winter ◽  
Migratory Movements

AbstractMigratory movements of facultative migrants are poorly understood due to their irregular and often unpredictable occurrence. However, tracking such movements is important for understanding population dynamics, informing annual cycle conservation plans, and identifying possible cues of facultative migration. We used pinpoint GPS tags to track autumn and winter movements of migratory red-headed woodpeckers (Melanerpes erythrocephalus) to better understand migration frequency, timing, and routes for birds breeding in managed oak savanna systems in the North American Great Lakes region. Proportions of individuals migrating differed between the two sites, with 72% of the Ohio population migrating, while no individuals in the Minnesota population migrated. Of the Ohio birds that migrated, their movements were highly variable in distance and direction but generally occurred south of the breeding site. Wintering sites ranged from 111 – 218 km from the breeding site. Cover types occupied during migration and wintering were almost exclusively small patches of closed-canopy hardwood forest within agricultural matrices. We documented one-time movements in migratory and non-migratory individuals during the year that have not previously been described in facultative migrants. We found no evidence of a harness or marker effect on proportions of individuals migrating, migration return rates, or annual survival regardless of migration.

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