Genetics and the successful reintroduction of the Missouri river otter

  title={Genetics and the successful reintroduction of the Missouri river otter},
  author={Rebecca A. Mowry and Tavin M. Schneider and Emily K Latch and Matthew E. Gompper and Jeff Beringer and Lori S Eggert},
  journal={Animal Conservation},
Reintroduction is an effective tool for restoring endangered populations. There is increasing concern, however, that demographic restoration may not equate with genetic restoration. We examine the demographic‐genetic contrast in the context of one of the world's most successful carnivore population restorations. Beginning in 1982, a total of 835 river otters Lontra canadensis were reintroduced to Missouri, USA, more than 50 years after extirpation. Most otters were translocated from Louisiana… 

Genetics of a reintroduced swift fox population highlights the need for integrated conservation between neighbouring countries

The genetic consequences of reintroductions are rarely considered after releases cease, but long‐term viability depends on linked demography and genetic health. Reintroductions of swift foxes Vulpes

Temporal genetic dynamics of reintroduced and translocated populations of the endangered golden lion tamarin (Leontopithecus rosalia)

Trends indicating that the effective population size at the translocation site increased while that at the reintroduction sites diminished over time are found, highlighting how conservation management decisions have an important influence on the genetic outcome of translocations and reintroductions.

Estimating Landscape Quality And Genetic Structure Of Recovering American Marten Populations In The Northeastern United States

The American marten (Martes americana) is an endangered species in Vermont and a Regional Species of Greatest Conservation Need in the northeastern United States. Though historically widespread in

Influence of Introduction History on Genetic Variation in Introduced Populations: A Case Study of Oregon Chub

Microsatellite loci were used to examine 13 introduced populations and their respective sources to evaluate how well the introduction program captured genetic diversity present in the wild populations, and genetic variation was reduced by roughly 25% in one introduced population.

Evaluating otter reintroduction outcomes using genetic spatial capture–recapture modified for dendritic networks

Combined with non‐invasive genetic sampling, the SCR network distance approach is likely widely applicable to demogenetic assessments of both reintroduced and established populations of multiple mustelid species that inhabit aquatic dendritic networks, many of which are regionally or globally imperiled and may warrant reintroduction or augmentation efforts.

Genetic population structure of fishers (Pekania pennanti) in the Great Lakes region: remnants and reintroductions

It is found significant genetic population structure among source and reintroduced populations within the Great Lakes region and large-scale genetic structure between fisher populations located in two geographically distant regions (Great Lakes and Northeast, in the eastern United States.

Genetic Differentiation of Reintroduced Père David’s Deer (Elaphurus davidianus) Based on Population Genomics Analysis

The findings of this study could highlight the necessity of individual exchange between different facilities, and genetic management should generally be integrated into conservation planning with other management considerations.

Mixing genetically differentiated populations successfully boosts diversity of an endangered carnivore

Biodiversity decline and genetic erosion are among the most challenging conservation issues. Genetic admixture, the mixing of two or more genetically differentiated populations, can increase genetic

Conservation genetics of otters: Review about the use of non-invasive samples

Genetic characterization studies that use stools as source of DNA support the usefulness of this material to get amplified markers in the genotyping of individuals, and suggest the use of fresh samples and appropriate conservation methods to avoid DNA degradation.



A genetic approach to determine river otter abundance in Missouri

River otters (Lontra canadensis) were believed to have been extirpated from the state of Missouri by the mid-1930s. Over a ten-year period beginning in 1982, the Missouri Department of Conservation

Impact of population expansion on genetic diversity and structure of river otters (Lontra canadensis) in Central North America.

Genetic diversity was high, genetic differentiation was low, and low genetic differentiation between South Dakota and Louisiana (LA) suggested that reintroductions using LA stock were successful, suggesting that eastern ND was recolonized by river otters from Minnesota.

Genotypic and phenotypic consequences of reintroduction history in the black-footed ferret (Mustela nigripes)

It appears that 5–10 years of isolation resulted in both genotypic divergence and phenotypic changes to populations, and translocation of 30–40 captive individuals per annum to reintroduction sites which have not become established quickly is recommended.

Temporal Analysis of Genetic Structure to Assess Population Dynamics of Reintroduced Swift Foxes

The results indicate growing, stable populations, and future connectivity analyses are warranted to ensure both populations are not subject to negative small-population effects.

River Otter Population Size Estimation using Noninvasive Latrine Surveys

The results provide methodological approaches to guide wildlife managers seeking to initiate similar river otter fecal genotyping studies, as well as to estimate and monitor river otters population sizes.

Age-Specific Reproductive Rates of River Otters in Southern Missouri

The results indicate that the southern Missouri River Otter population has one of the greatest recorded potential reproductive capacities for that species.

Restoration recovers population structure and landscape genetic connectivity in a dispersal‐limited ecosystem

The analyses demonstrate that metapopulation dynamics are important to the natural recovery of seagrass ecosystems that have experienced catastrophic loss over large spatial scales; however, natural recovery processes are slow and inefficient at recovering genetic diversity and population structure when recruitment barriers exist.

Deciphering ecological barriers to North American river otter (Lontra canadensis) gene flow in the Louisiana landscape.

Using georeferenced multilocus microsatellite genotypes in spatially implicit and spatially explicit models to characterize patterns of landscape genetic structure in river otters in Louisiana, it is likely that any genetic differentiation among subpopulations is exacerbated by relatively poor dispersal.

The effects of gene flow and population isolation on the genetic structure of␣reintroduced wild turkey populations: Are genetic signatures of source populations retained?

The results indicate that wild turkey reintroductions in Indiana have left distinct genetic signatures on populations that are detectable even after several decades, and overall paucity of gene flow at a regional scale is indicated.