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Articles 1 - 9 of 9
Full-Text Articles in Population Biology
The Fine-Scale Habitat Use Of Risso’S Dolphins Off Bardsey Island, Cardigan Bay (Uk), Marijke N. De Boer, Sonja Eisfeld, Mark P. Simmonds
The Fine-Scale Habitat Use Of Risso’S Dolphins Off Bardsey Island, Cardigan Bay (Uk), Marijke N. De Boer, Sonja Eisfeld, Mark P. Simmonds
Mark P. Simmonds, OBE
The main objectives of this study were (1) to estimate the population size of Risso’s dolphins off Bardsey Island using mark-recapture techniques (De Boer et al., 2013); and (2) to study habitat-use in relation to fine-scale oceanographic features. This work provides preliminary information on the habitat-use of Risso’s dolphins and will benefit future studies, along with the development of effective conservation measures for this species throughout the region.
Photo-Identification Methods Reveal Seasonal And Long-Term Site-Fidelity Of Risso’S Dolphins (Grampus Griseus) In Shallow Waters (Cardigan Bay, Wales), Marijke N. De Boer, Josephine Clark, Mardik F. Leopold, Mark P. Simmonds, Peter J.H. Reijnders
Photo-Identification Methods Reveal Seasonal And Long-Term Site-Fidelity Of Risso’S Dolphins (Grampus Griseus) In Shallow Waters (Cardigan Bay, Wales), Marijke N. De Boer, Josephine Clark, Mardik F. Leopold, Mark P. Simmonds, Peter J.H. Reijnders
Mark P. Simmonds, OBE
A photo-identification study on Risso’s dolphins was carried out off Bardsey Island in Wales (July to September, 1997-2007). Their local abundance was estimated using two different analytical techniques: 1) mark-recapture of well-marked dolphins using a “closed-population” model; and 2) a census technique based on the total number of iden-tified individual dolphins sighted over the study period. The mark-recapture estimates of 121 (left sides; 64 - 178, 95% CI; CV 0.24) and 145 dolphins (right sides; 78 - 213, 95% CI; CV 0.24) closely matched the census technique estimates (population size of 90 - 151). It was found that the dolphins …
Urban Wildlife Control: It Starts In Our Own Backyard, John Hadidian
Urban Wildlife Control: It Starts In Our Own Backyard, John Hadidian
John Hadidian, PhD
No abstract provided.
An Ecological Approach To Experiential Learning In An Inner-City Context, Pauline Garcia-Reid, Robert Reid, Bradley Forenza
An Ecological Approach To Experiential Learning In An Inner-City Context, Pauline Garcia-Reid, Robert Reid, Bradley Forenza
Department of Family Science and Human Development Scholarship and Creative Works
In‐depth, qualitative interviewing was employed to describe processes and competencies experienced by family science interns, who practiced in a high‐risk ecological context. Twenty interns from a 3‐year period were recruited. All had interned on the same federally funded, HIV/substance abuse prevention grant in the same focal city. Within this sample, it was determined that experiential learning—vis‐à‐vis the internship—facilitated both intrapersonal processes and ecological competencies for family science interns, who may otherwise have lacked this knowledge when assuming professional roles. Implications for policy and practice are discussed.
Pedigree Structure And Kinship Measurements Of A Mid-Michigan Community: A New North American Population Isolate Identified, Joseph D. Bonner, Rachel Fisher, James Klein, Qing Lu, Ellen Wilch, Karen H. Friderici, Jill L. Elfenbein, Debra L. Schutte, Brian C. Schutte
Pedigree Structure And Kinship Measurements Of A Mid-Michigan Community: A New North American Population Isolate Identified, Joseph D. Bonner, Rachel Fisher, James Klein, Qing Lu, Ellen Wilch, Karen H. Friderici, Jill L. Elfenbein, Debra L. Schutte, Brian C. Schutte
Human Biology Open Access Pre-Prints
Previous studies identified a cluster of individuals with an autosomal recessive form of deafness that resides in a small region of mid-Michigan. We hypothesized that affected members from this community descend from a defined founder population. Using public records and personal interviews, we constructed a genealogical database that includes the affected individuals and their extended families as descendants of 461 settlers who emigrated from the Eifel region of Germany between 1836 and 1875. The genealogical database represents a 13-generation pedigree that includes 27,747 descendants of these settlers. Among these descendants, 13,784 are presumed living. Many of the extant descendants reside …
Celiac Disease As A Model For The Evolution Of Multifactorial Disease In Humans, Aaron Sams, John Hawks
Celiac Disease As A Model For The Evolution Of Multifactorial Disease In Humans, Aaron Sams, John Hawks
Human Biology Open Access Pre-Prints
Celiac disease (CD) is a multifactorial chronic inflammatory condition that results in injury of the mucosal lining of the small intestine upon ingestion of wheat gluten and related proteins from barley and rye. Although the exact mechanisms leading to CD are not fully understood, the genetic basis of CD has been relatively well characterized. In this review we briefly review the history of discovery, clinical presentation, pathophysiology, and current understanding of the genetics underlying CD risk. Then, we discuss what is known about the current distribution and evolutionary history of genes underlying CD risk in light of other evolutionary models …
Lactase Persistence Variants In Arabia And In The African Arabs, Edita Priehodova, Abdelhay Abdelsawy, Evelyne Heyer, Viktor Cerny
Lactase Persistence Variants In Arabia And In The African Arabs, Edita Priehodova, Abdelhay Abdelsawy, Evelyne Heyer, Viktor Cerny
Human Biology Open Access Pre-Prints
Lactase persistence (LP), the state enabling the digestion of milk sugar in adulthood occurs only in some human populations. The convergent and independent origin of this physiological ability in Europe and Africa is linked with animal domestication that had either started in both places independently or had spread from the Near East by acculturation. However, it has recently been shown that at least in its southern parts, the population of Arabia not only has a different LP-associated mutation profile than the rest of Africa and Europe but had also experienced an independent demographic expansion occurring before the Neolithic around the …
Linking Social Behavior And Stress Physiology In Feral Mares (Equus Caballus): Group Transfers Elevate Fecal Cortisol Levels, Cassandra M.V. Nuñez, James S. Adelman, Jessica Smith, Laurence Gesquiere, Daniel I. Rubenstein
Linking Social Behavior And Stress Physiology In Feral Mares (Equus Caballus): Group Transfers Elevate Fecal Cortisol Levels, Cassandra M.V. Nuñez, James S. Adelman, Jessica Smith, Laurence Gesquiere, Daniel I. Rubenstein
Cassandra M.V. Nuñez
Feral horses (Equus caballus) have a complex social structure, the stability of which is important to their overall health. Behavioral and demographic research has shown that decreases in group (or band) stability reduce female fitness, but the potential effects on the physiological stress response have not been demonstrated. To fully understand how band stability affects group-member fitness, we need to understand not only behavioral and demographic, but also physiological consequences of decreases to that stability. We studied group changes in feral mares (an activity that induces instability, including both male and female aggression) on Shackleford Banks, NC. We found that …
Transmission Of Ranavirus Between Ectothermic Vertebrate Hosts, R Brenes, Matt J. Gray, T B. Waltzek, Rebecca P. Wilkes, Debra L. Miller
Transmission Of Ranavirus Between Ectothermic Vertebrate Hosts, R Brenes, Matt J. Gray, T B. Waltzek, Rebecca P. Wilkes, Debra L. Miller
Debra L Miller
Transmission is an essential process that contributes to the survival of pathogens. Ranaviruses are known to infect different classes of lower vertebrates including amphibians, fishes and reptiles. Differences in the likelihood of infection among ectothermic vertebrate hosts could explain the successful yearlong persistence of ranaviruses in aquatic environments. The goal of this study was to determine if transmission of a Frog Virus 3 (FV3)-like ranavirus was possible among three species from different ectothermic vertebrate classes: Cope's gray treefrog (Hyla chrysoscelis) larvae, mosquito fish (Gambusia affinis), and red-eared slider (Trachemys scripta elegans). We housed individuals previously exposed to the FV3-like ranavirus …