scholarly journals Persistence and expansion of cryptic endangered red wolf genomic ancestry along the American Gulf coast

2021 ◽  
Author(s):  
Bridgett M. vonHoldt ◽  
Kristin E. Brzeski ◽  
Matthew L. Aardema ◽  
Christopher Schell ◽  
Linda Y. Rutledge ◽  
...  
Keyword(s):  
Gulf Coast ◽  
Red Wolf

scholarly journals Rediscovery of Red Wolf Ghost Alleles in a Canid Population Along the American Gulf Coast

Genes ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 618 ◽  
Author(s):  
Elizabeth Heppenheimer ◽  
Kristin Brzeski ◽  
Ron Wooten ◽  
William Waddell ◽  
Linda Rutledge ◽  
...  
Keyword(s):  
North Carolina ◽  
Gulf Coast ◽  
Nucleotide Polymorphisms ◽  
Conservation Action ◽  
Single Nucleotide ◽  
Red Wolf ◽  
Reintroduced Population ◽  
Coastal Louisiana ◽  
Red Wolves ◽  
Bayesian Cluster

Rediscovering species once thought to be extinct or on the edge of extinction is rare. Red wolves have been extinct along the American Gulf Coast since 1980, with their last populations found in coastal Louisiana and Texas. We report the rediscovery of red wolf ghost alleles in a canid population on Galveston Island, Texas. We analyzed over 7000 single nucleotide polymorphisms (SNPs) in 60 canid representatives from all legally recognized North American Canis species and two phenotypically ambiguous canids from Galveston Island. We found notably high Bayesian cluster assignments of the Galveston canids to captive red wolves with extensive sharing of red wolf private alleles. Today, the only known extant wild red wolves persist in a reintroduced population in North Carolina, which is dwindling amongst political and taxonomic controversy. Our rediscovery of red wolf ancestry after almost 40 years introduces both positive opportunities for additional conservation action and difficult policy challenges.

scholarly journals Reviving ghost alleles: Genetically admixed coyotes along the American Gulf Coast are critical for saving the endangered red wolf

2021 ◽  
Author(s):  
Bridgett vonHoldt ◽  
Joseph Hinton ◽  
Amy Shutt ◽  
Jennifer Adams ◽  
Lisette Waits ◽  
...  
Keyword(s):  
Endangered Species ◽  
Captive Breeding ◽  
Gulf Coast ◽  
Breeding Population ◽  
New Paradigm ◽  
Species Persistence ◽  
Red Wolf ◽  
Captive Breeding Program ◽  
Innovative Solutions ◽  
Red Wolves

The last red wolves were captured along the Gulf Coast in 1980, where they hybridized with coyote, to establish the captive breeding population. However, red wolf ancestry persists in local coyotes and could be leveraged by genomic innovations to support species persistence. We assessed genomic ancestry and morphology of coyotes in southwestern Louisiana, and find they carried 38-62% red wolf ancestry acquired in the last 30 years, which is enriched on land with minimal coyote hunting. These coyotes were also similar in ancestry to canids captured in the 1970s that initiated the red wolf captive breeding program. Further, we reported that coyotes with higher red wolf ancestry are larger in size. Our findings evidence the importance of hybrids as a reservoir of endangered species ancestry for contemporary conservation efforts. Admixed genomes are at the forefront of innovative solutions, with red wolf survival a prime candidate for this new paradigm.

scholarly journals A Genome-Wide Perspective on the Persistence of Red Wolf Ancestry in Southeastern Canids

2020 ◽  
Vol 111 (3) ◽  
pp. 277-286 ◽  
Author(s):  
Elizabeth Heppenheimer ◽  
Kristin E Brzeski ◽  
Joseph W Hinton ◽  
Michael J Chamberlain ◽  
Jacqueline Robinson ◽  
...  
Keyword(s):  
United States ◽  
North Carolina ◽  
Gulf Coast ◽  
Southeastern United States ◽  
Geographic Region ◽  
Canis Rufus ◽  
Red Wolf ◽  
Genome Wide ◽  
A Genome ◽  
In The Wild

Abstract The red wolf (Canis rufus), a legally recognized and critically endangered wolf, is known to interbreed with coyotes (Canis latrans). Declared extirpated in the wild in 1980, red wolves were reintroduced to northeastern North Carolina nearly a decade later. Interbreeding with coyotes was thought to be restricted to a narrow geographic region adjacent to the reintroduced population and largely believed to threaten red wolf recovery. However, red wolf ancestry was recently discovered in canids along the American Gulf Coast, igniting a broader survey of ancestry in southeastern canid populations. Here, we examine geographic and temporal patterns of genome-wide red wolf ancestry in 260 canids across the southeastern United States at over 164 000 SNP loci. We found that red wolf ancestry was most prevalent in canids sampled from Texas in the mid-1970s, although non-trivial amounts of red wolf ancestry persist in this region today. Further, red wolf ancestry was also observed in a subset of coyotes inhabiting North Carolina, despite management efforts to limit the occurrence of hybridization events. Lastly, we found no evidence of substantial red wolf ancestry in southeastern canids outside of these 2 admixture zones. Overall, this study provides a genome-wide survey of red wolf ancestry in canids across the southeastern United States, which may ultimately inform future red wolf restoration efforts.

scholarly journals Rediscovery of red wolf ghost alleles in a canid population along the American Gulf Coast

2018 ◽  
Author(s):  
Elizabeth Heppenheimer ◽  
Kristin E. Brzeski ◽  
Ron Wooten ◽  
Will Waddell ◽  
Linda Y. Rutledge ◽  
...  
Keyword(s):  
North Carolina ◽  
Gulf Coast ◽  
Conservation Action ◽  
Red Wolf ◽  
Reintroduced Population ◽  
Coastal Louisiana ◽  
Gulf Coast Region ◽  
Red Wolves ◽  
Bayesian Cluster ◽  
Coast Region

AbstractRediscovering species once thought to be extinct or on the edge of extinction is rare. Red wolves have been extinct along the Gulf Coast region since 1980, with their last populations found in coastal Louisiana and Texas. We report the rediscovery of red wolf ghost alleles in a canid population on Galveston Island, Texas. We analyzed over 7,000 SNPs in 60 canid representatives from all legally recognized North American Canis species and two phenotypically ambiguous canids from Galveston Island. We found notably high Bayesian cluster assignments of the Galveston canids to captive red wolves with extensive sharing of red wolf private alleles. Today, the only known extant wild red wolves persist in a reintroduced population in North Carolina, which is dwindling amongst political and taxonomic controversy. Our rediscovery of red wolf ancestry after almost 40 years introduces both positive opportunities for additional conservation action and difficult policy challenges.

scholarly journals Persistence and expansion of cryptic endangered red wolf genomic ancestry along the American Gulf coast

2021 ◽  
Author(s):  
Bridgett M. vonHoldt ◽  
Kristin E. Brzeski ◽  
Matthew L. Aardema ◽  
Christopher Schell ◽  
Linda Y. Rutledge ◽  
...  
Keyword(s):  
Gulf Coast ◽  
Critical Role ◽  
Genetic Rescue ◽  
Recombination Rates ◽  
Red Wolf ◽  
The Past ◽  
Genomic Landscape ◽  
Theoretical Predictions ◽  
In The Wild ◽  
Red Wolves

AbstractAdmixture and introgression play a critical role in adaptation and genetic rescue that has only recently gained a deeper appreciation. Here, we explored the geographic and genomic landscape of cryptic ancestry of the endangered red wolf that persists within the genome of a ubiquitous sister taxon, the coyote, all the while the red wolf has been extinct in the wild since the early 1980s. We assessed admixture across 102,621 SNP loci genotyped in 293 canid genomes. We found support for increased red wolf ancestry along an east-to-west gradient across the southern United States that was associated with historical admixture in the past 100 years. Southwestern Louisiana and southeastern Texas, the geographic zone where the last red wolves were known prior to their extinction in the wild, contained the highest and oldest levels of red wolf ancestry. X-linked regions of low recombination rates were depleted of introgression, relative to the autosomes, suggestive of the large X effect and enrichment with loci involved in maintaining reproductive isolation. Recombination rate was positively correlated with red wolf ancestry across coyote genomes, consistent with theoretical predictions. The geographic and genomic extent of cryptic red wolf ancestry can provide novel and variable genomic resources for the survival of the endangered red wolf.

Teletinnitus Program at the VA Gulf Coast Veterans Health Care System

2014 ◽  
Vol 4 (1) ◽  
pp. 23-29
Author(s):  
Constance Hilory Tomberlin
Keyword(s):  
Health Care ◽  
Patient Satisfaction ◽  
Patient Care ◽  
Health Care System ◽  
Gulf Coast ◽  
New Technology ◽  
Cost Effective ◽  
Veterans Health ◽  
Potential Benefits ◽  
Care System

There are a multitude of reasons that a teletinnitus program can be beneficial, not only to the patients, but also within the hospital and audiology department. The ability to use technology for the purpose of tinnitus management allows for improved appointment access for all patients, especially those who live at a distance, has been shown to be more cost effective when the patients travel is otherwise monetarily compensated, and allows for multiple patient's to be seen in the same time slots, allowing for greater access to the clinic for the patients wishing to be seen in-house. There is also the patient's excitement in being part of a new technology-based program. The Gulf Coast Veterans Health Care System (GCVHCS) saw the potential benefits of incorporating a teletinnitus program and began implementation in 2013. There were a few hurdles to work through during the beginning organizational process and the initial execution of the program. Since the establishment of the Teletinnitus program, the GCVHCS has seen an enhancement in patient care, reduction in travel compensation, improvement in clinic utilization, clinic availability, the genuine excitement of the use of a new healthcare media amongst staff and patients, and overall patient satisfaction.

Characteristics of Physician Relocation Following Hurricane Katrina

2009 ◽  
Vol 95 (1) ◽  
pp. 6-12
Author(s):  
Kusuma Madamala ◽  
Claudia R. Campbell ◽  
Edbert B. Hsu ◽  
Yu-Hsiang Hsieh ◽  
James James
Keyword(s):  
Hurricane Katrina ◽  
Gulf Coast ◽  
General Medicine ◽  
The United States ◽  
Lessons Learned ◽  
Bivariate Analysis ◽  
Fisher Exact Test ◽  
Exact Test ◽  
Factors Associated ◽  
The Impact

ABSTRACT Introduction: On Aug. 29, 2005, Hurricane Katrina made landfall along the Gulf Coast of the United States, resulting in the evacuation of more than 1.5 million people, including nearly 6000 physicians. This article examines the relocation patterns of physicians following the storm, determines the impact that the disaster had on their lives and practices, and identifies lessons learned. Methods: An Internet-based survey was conducted among licensed physicians reporting addresses within Federal Emergency Management Agency-designated disaster zones in Louisiana and Mississippi. Descriptive data analysis was used to describe respondent characteristics. Multivariate logistic regression was performed to identify the factors associated with physician nonreturn to original practice. For those remaining relocated out of state, bivariate analysis with x2 or Fisher exact test was used to determine factors associated with plans to return to original practice. Results: A total of 312 eligible responses were collected. Among disaster zone respondents, 85.6 percent lived in Louisiana and 14.4 percent resided in Mississippi before the hurricane struck. By spring 2006, 75.6 percent (n = 236) of the respondents had returned to their original homes, whereas 24.4 percent (n = 76) remained displaced. Factors associated with nonreturn to original employment included family or general medicine practice (OR 0.42, 95 percent CI 0.17–1.04; P = .059) and severe or complete damage to the workplace (OR 0.24, 95 percent CI 0.13–0.42; P < .001). Conclusions: A sizeable proportion of physicians remain displaced after Hurricane Katrina, along with a lasting decrease in the number of physicians serving in the areas affected by the disaster. Programs designed to address identified physician needs in the aftermath of the storm may give confidence to displaced physicians to return.

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