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Iowa State University

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Full-Text Articles in Life Sciences

A Theoretical Consideration: Understanding Primate Polyspecific Associations Through Current Literature Of Primate Predation And Communication, Kaelyn Melinne Dobson Jan 2018

A Theoretical Consideration: Understanding Primate Polyspecific Associations Through Current Literature Of Primate Predation And Communication, Kaelyn Melinne Dobson

Graduate Theses and Dissertations

Primates are a unique taxon of organisms found to have complex communication, behavior, sociality and in turn, life histories. One of the areas of primate study with relatively little current knowledge is regarding natural polyspecific interactions in which two different species interact in a mutualistic or commensalistic relation suggested to be due to predation threats or foraging benefits. While polyspecific associations have been identified in a wide array of organisms including primate species, the causes are not always clear. Causes are suggested to include reducing predation threats and the ability to communicate information, particularly about predators. This paper will review ...


Influence Of Human Disturbance On Western Chimpanzee (Pan Troglodytes Verus) Nesting Behavior In A Savanna Mosaic Habitat, Southeastern Senegal, Kristine Micheletti Jan 2018

Influence Of Human Disturbance On Western Chimpanzee (Pan Troglodytes Verus) Nesting Behavior In A Savanna Mosaic Habitat, Southeastern Senegal, Kristine Micheletti

Graduate Theses and Dissertations

The human population continues to grow worldwide at an alarming rate, and, with this growth, comes expansion into new areas. These expansions can come with actions, like logging, mining, and agriculture that are harmful to the environment and the species inhabiting it. The critically endangered West African chimpanzees (Pan troglodytes verus) is one primate species affected by such human actions. In the Kedougou region of southeastern Senegal, artisanal small-scale gold mining has become a way of life and has accelerated rapidly in the last few years. I conducted research at the Bantan site, which is located a few kilometers south ...


Nutrient Evaluation Of A Pork By-Product And Its Use As Environmental Enrichment For Managed Large Exotic Cats, Cayla J. Iske, Cheryl M. Morris, Jessica D. Colpoys, Kelly L. Kappen, Chelsea A. Iennarella, Anna K. Johnson Jan 2018

Nutrient Evaluation Of A Pork By-Product And Its Use As Environmental Enrichment For Managed Large Exotic Cats, Cayla J. Iske, Cheryl M. Morris, Jessica D. Colpoys, Kelly L. Kappen, Chelsea A. Iennarella, Anna K. Johnson

Animal Science Publications

North American zoological institutions typically feed ground raw meat diets to large exotic cats. These diets typically are nutritionally complete, but lack physical properties characteristic of whole prey. Lack of mastication and prey manipulation may contribute to behavioral and health challenges. Pork by-products may provide environmental enrichment to mitigate these challenges. The objectives of this study were to evaluate a pig head for nutritional composition and to determine if a pig head was biologically relevant environmental enrichment for managed large exotic cats. Pig heads consisted of: DM: 48.5%; OM: 60.7%; CP: 38.4%; fat: 22.0%; CF: 13 ...


Response Of Anurans To Wetland Restoration On A Midwestern Agricultural Landscape, Paul E. Bartelt, Robert W. Klaver Sep 2017

Response Of Anurans To Wetland Restoration On A Midwestern Agricultural Landscape, Paul E. Bartelt, Robert W. Klaver

Natural Resource Ecology and Management Publications

Since the early 1990s, >5,000 ha of historic wetlands (and adjacent prairie) have been restored on the row-crop agricultural landscape of Winnebago County, Iowa, USA. From 2008–2011, we surveyed 22 of these sites for probabilities of occupancy and colonization by Boreal Chorus Frogs (BCF; Pseudacris maculata), Northern Leopard Frogs (NLF; Lithobates pipiens), and American Toads (AT; Anaxyrus americanus). We used radio telemetry to measure patterns of movement and habitat use by 22 NLF and 54 AT and deployed biophysical models in available habitats to estimate their physiological costs. The BCF occupied 100% of restored wetlands; NLF and AT ...


Gladiolus Insects In Iowa, H. D. Tate, M. E. Poor Aug 2017

Gladiolus Insects In Iowa, H. D. Tate, M. E. Poor

Bulletin

Previous to the discovery of the gladiolus thrips in North America in 1929, the gladiolus plant was considered practically free from serious insect injury. With the introduction and rapid distribution of the thrips, however, the study of insects attacking the gladiolus has demanded the attention of entomologists as well as commercial growers in many states. At the present time a complete list of insects which feed on this plant would comprise a considerable number of species. Even though some of these are of only secondary importance, they may under some conditions become pests of serious consequence to the individual grower ...


The Snakes Of Iowa, J. E. Guthrie Aug 2017

The Snakes Of Iowa, J. E. Guthrie

Bulletin

Altho the popular attitude toward snakes has always been hostile, most of them are harmless and they are often of great value to agriculture. The common practice of killing every snake that shows its head grows out of a lack of knowledge about these animals and their frequent usefulness. It is of economic importance to agriculture in Iowa and elsewhere to have available information as to the useful species of snakes, and ways of separating them from the harmful kinds.


Some Factors Influencing Populations Of The European Corn Borer, Ostrinia Nubilalis (Hubner) In The North Central States: Resistance Of Corn, Time Of Planting And Weather Conditions Part Ii, 1958-1962, A. N. Sparks, H. C. Chiang, C. A. Triplehorn, W. D. Guthrie, T. A. Brindley Jun 2017

Some Factors Influencing Populations Of The European Corn Borer, Ostrinia Nubilalis (Hubner) In The North Central States: Resistance Of Corn, Time Of Planting And Weather Conditions Part Ii, 1958-1962, A. N. Sparks, H. C. Chiang, C. A. Triplehorn, W. D. Guthrie, T. A. Brindley

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

A cooperative project was conducted by the agricultural experiment stations of Iowa, Minnesota and Ohio and the U. S. Department of Agriculture to study the effects of weather, planting date and resistant hybrids as factors influencing populations of the European com borer, Ostrinia nubilalis (Hübner). Identical studies were carried out at Ankeny, Iowa; Waseca, Minnesota; and Wooster, Ohio, during a 10-year period, 1953-1962.

The first 4 years of the study (1953-56) were reported by Everett et al. (1958). The work reported herein is a companion bulletin to the Everett et al. (1958) publication and deals with the results of experiments ...


Hyperactivity, Blood Lactic Acid And Mortality In Channel Catfish, Charles W. Caillouet Jr. Jun 2017

Hyperactivity, Blood Lactic Acid And Mortality In Channel Catfish, Charles W. Caillouet Jr.

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Mortality in submature channel catfish, Ictalurus punctatus (Rafinesque), caught in the Mississippi River and stocked in Iowa streams and ponds, led to this investigation in 1961-1963. The major findings can be summarized as follows:

The mean concentration of lactic acid in the blood of unexercised channel catfish varied from 2.3 to 7.6 mg/100 ml of whole blood. That of fish subjected individually to forced exercise varied from 21.1 to 44.1 mg/100 ml after 5 minutes of exercise and from 59.1 to 67.6 mg/100 ml after 15 minutes of exercise. A lower ...


Biology And Possible Control Of Nuisance Caddisflies Of The Upper Mississippi River, Calvin R. Fremling Jun 2017

Biology And Possible Control Of Nuisance Caddisflies Of The Upper Mississippi River, Calvin R. Fremling

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The principal nuisance species of caddisflies at Keokuk, Iowa, are Hydropsyche orris Ross, Cheumatopsyche campyla Ross and Potamyia flava (Hagen), all members of the family Hydropsychidae (Order Trichoptera). The larvae of these species require considerable water current so that food may be carried into the nets which they construct upon submerged rocks and other silt-free structures. Keokuk lies along the tailwaters of the largest dam on the Upper Mississippi River, and the current and subsequent lack of silting create a large area which is favorable for hydropsychid larval habitation. Consequently, Keokuk is host to more caddisflies than the other river ...


Biology Of A Large Mayfly, Hexagenia Bilineata (Say), Of The Upper Mississippi River, Calvin R. Fremling Jun 2017

Biology Of A Large Mayfly, Hexagenia Bilineata (Say), Of The Upper Mississippi River, Calvin R. Fremling

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Hexagenia bilineata (Say) and Hexagenia limbata ( Serville) create nuisance problems by their sheer numbers in many cities along the Mississippi River. They also constitute a navigation hazard and may cause allergies.

H. bilineata is generally more abundant than H. limbata on the Upper Mississippi River, but H. limbata becomes increasingly abundant northward. The absence of intermediate-sized nymphs in late summer indicates that H. bilineata completes a generation in 1 year in the Keokuk area. H. bilineata nymphs live in burrows in the river bottom and are most abundant in impounded areas where there is little current and where the river ...


Life History Of The White Bass, Lepibema Chrysops (Rafinesque), Of Spirit Lake, Iowa, William F. Sigler Jun 2017

Life History Of The White Bass, Lepibema Chrysops (Rafinesque), Of Spirit Lake, Iowa, William F. Sigler

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The white bass were probably originally stocked in Spirit Lake, northwestern Iowa, in the last 50 years and were not native to these waters. The numbers have shown great fluctuations over the years. The field work for the present study covered the period 1941 to 1946.

Spirit Lake is a shallow, rich, hard water, eutrophic lake not exceeding 23 feet in depth. Potamogeton richardsonii and Scirpus acutus are the dominant deep-water plants. In general, young pan and game fish amounted to a very large percentage of all of the small fish in the lake during the years 1941, 1942, 1943 ...


Comparative Analysis Of Red Fox Feeding Trends On Two Central Iowa Areas, Thos G. Scott Jun 2017

Comparative Analysis Of Red Fox Feeding Trends On Two Central Iowa Areas, Thos G. Scott

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Progress toward an understanding of the meaning of predation is sometimes obtained by comparing the predator's feeding trends in markedly different habitats. Data collected in Iowa in 1940 and 1941 make such a comparison possible for the northern plains red fox (Vulpes regalis Merriam). A continuous investigation of the food coactions of red foxes was made on the Moingona Fox Range from June 1938 to May 1941 (Scott, 15). A similar study was undertaken on the Wall Lake Area in June 1940 and continued to October 1941, when it was interrupted by World War II. Thus, observations were being ...


An Analysis Of Mink Predation Upon Muskrats In Northcentral United States, Paul L. Errington Jun 2017

An Analysis Of Mink Predation Upon Muskrats In Northcentral United States, Paul L. Errington

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

The present analysis is based on data first acquired incidental to personal fur-trapping (principally in South Dakota, 1915-28), later as a product of intensive year-to-year field researches in central and northern Iowa, 1934-42. In the intensive phases of the investigations, particular efforts were made to inquire into the mechanics of predation suffered by the muskrat at different densities, under different environmental conditions, and at different seasons.

It was found that strangeness of environment, intraspecific intolerance, and drouth were especially important in predisposing muskrats of north-central United States to predation, as by minks; and that kinds and numbers of wild predators ...


Development Of A Bob-White Management Area In Southern Iowa, Earl Sanders Jun 2017

Development Of A Bob-White Management Area In Southern Iowa, Earl Sanders

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

An experimental bob-white management area was divided into two parts, the northern part of which was designated as the pay-shooting area because the farmers were permitted to charge $1 per man-day for hunting privileges. The southern part was designated as a free-shooting area because the farmers were not permitted to charge for hunting, but instead were paid 10 cents an acre by the Iowa State Conservation Commission in 1936 and 1937. Both areas were to carry out identical, recommended game management practices.

Designated game management practices in 1936 included: (1) Planting sorghum and Korean lespedeza; (2) setting out trees; (3 ...


Ecology And Management Of The Mourning Dove, Zenaidura Macroura (Linn.), In Cass County, Iowa, H. Elliott Mcclure Jun 2017

Ecology And Management Of The Mourning Dove, Zenaidura Macroura (Linn.), In Cass County, Iowa, H. Elliott Mcclure

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Decrease of the mourning dove, an important game bird of the United States, has been noted recently in eastern and southern states. In Iowa, the dove is among the commonest of breeding birds, and observations in Cass County, Iowa, during 30 months of 1938, 1939 and 1940 revealed that the county production was high, averaging an estimated 200,000 young yearly from 73,000 adults. About 2 percent of the summer residents is believed to have wintered in the county.

Detailed investigations at Lewis, at 14 farmyards and at 6 other habitat types, brought under observation nearly 4,000 nests ...


The Great Horned Owl And Its Prey In North-Central United States, Paul L. Errington, Frances Hamerstrom, F. N. Hamerstrom Jr. Jun 2017

The Great Horned Owl And Its Prey In North-Central United States, Paul L. Errington, Frances Hamerstrom, F. N. Hamerstrom Jr.

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Along with other predatory species, the great horned owl has been studied in north-central United States, particularly in Iowa and southern Wisconsin localities in which ecological research upon certain prey types has been carried on contemporaneously. After investigation by field and laboratory methods involving experimentation with captive horned owls and observation in nature, it became obvious that the mass data on feeding trends required by the program could be best obtained through pellet studies supplemented by whatever additional techniques would yield information.

The horned owl food habits data upon which this bulletin is partly based were gathered largely between 1930 ...


The Influence Of Size Of Brood Cell Upon The Size And Variability Of The Honeybee (Apis Mellifera L .), Roy A. Grout May 2017

The Influence Of Size Of Brood Cell Upon The Size And Variability Of The Honeybee (Apis Mellifera L .), Roy A. Grout

Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

1. Enlarged brood cells affect the size of the adult worker bee, and significantly larger worker bees are obtained through the use of enlarged cell foundation.

2. The average percentage increases of the linear measurements of the adult worker bees are almost proportional to the percentage increases of the diameters of the brood cells.

3. The increase in the size of the bee does not· quite keep pace with increases in cell size.

4. Size of brood cell apparently does not affect the variability of the adult worker bee, except possibly its dry weight.

5. The number of bees used ...


Anthropogenic Influences On Raccoon Problem-Solving Characteristics, Anarose M. Hebein Apr 2017

Anthropogenic Influences On Raccoon Problem-Solving Characteristics, Anarose M. Hebein

Honors Projects and Posters

Considered generalists, raccoons are extremely adaptable and often regarded as nuisances due to their tendency to scavenge in dumpsters and garbage cans. Because the relationship between humans and raccoons is not unilateral, it is important to study the effect human-dominated environments have on raccoon ecology. In order to better understand these anthropogenic influences, raccoon problem-solving characteristics were evaluated in both suburban and natural settings. To do this, baited puzzle boxes were provided to the raccoons and motion-activated cameras were set to record any disturbance. The study found that raccoons from the natural site solved the food puzzles in fewer nights ...


Sex-Specific Survival To Maturity And The Evolution Of Environmental Sex Determination, Lisa E. Schwanz, Gerardo Antonio Cordero, Eric L. Charnov, Fredric J. Janzen Feb 2016

Sex-Specific Survival To Maturity And The Evolution Of Environmental Sex Determination, Lisa E. Schwanz, Gerardo Antonio Cordero, Eric L. Charnov, Fredric J. Janzen

Ecology, Evolution and Organismal Biology Publications

Four decades ago, it was proposed that environmental sex determination (ESD) evolves when individual fitness depends on the environment in a sex-specific fashion—a form of condition-dependent sex allocation. Many biological processes have been hypothesized to drive this sex asymmetry, yet a general explanation for the evolution of sex-determining mechanisms remains elusive. Here, we develop a mathematical model for a novel hypothesis of the evolution of ESD, and provide a first empirical test using data across turtles. ESD is favored when the sex-determining environment affects annual survival rates equivalently in males and females, and males and females mature at different ...


Inter-Observer Reliability For Large Exotic Felids, Cayla Iske, Cheryl L. Morris, Anna Johnson Jan 2016

Inter-Observer Reliability For Large Exotic Felids, Cayla Iske, Cheryl L. Morris, Anna Johnson

Animal Industry Report

The objective of this study was to determine and refine the inter-observer reliability scores before a large exotic felid enrichment study was conducted in a zoological setting. Three felids housed at Omaha’s Henry Doorly Zoo & Aquarium were used. An ethogram was adapted from previously published felid work. Three behavioral measures were compared; active, inactive and other. A total of 6 female observers were used. One trainer (Observer 1 = control) who had one year of behavioral research experience with large exotic felids was responsible for observer training prior to study commencement. To test for inter-observer reliability, three 10 minute videos were viewed (sessions 1 through 3). All observers independently reviewed these videos. Each observer scored the felids ...


Evaluation Of Microbial Populations In Raw Meat Diets Fed To Captive Exotic Animals In Zoological Institutions, Cayla Iske, Cheryl L. Morris, Kelly Kappen Jan 2016

Evaluation Of Microbial Populations In Raw Meat Diets Fed To Captive Exotic Animals In Zoological Institutions, Cayla Iske, Cheryl L. Morris, Kelly Kappen

Animal Industry Report

The objective of this study was to evaluate general microbial population levels of common raw meat diets fed to exotic carnivores managed in zoos. Four raw meat diet formulations were sampled and analyzed for generic E.coli, total coliforms, yeast, mold, Staphylocccus aureus, total aerobic plate counts and presence of Salmonella. Each product was sampled at least three times between 2012 and 2015 and descriptive statistics are presented. Ranges were extreme even among the same diet type. Salmonella species tested presumptive positive in nearly 50% of samples from three of the diets. Additional research is required to identify specific serotypes ...


Do Transmitters Affect Survival And Body Condition Of American Beavers Castor Canadensis?, Joshua B. Smith, Steve K. Windels, Tiffany Wolf, Robert W. Klaver, Jerrold L. Belant Jan 2016

Do Transmitters Affect Survival And Body Condition Of American Beavers Castor Canadensis?, Joshua B. Smith, Steve K. Windels, Tiffany Wolf, Robert W. Klaver, Jerrold L. Belant

Natural Resource Ecology and Management Publications

One key assumption often inferred with using radio-equipped individuals is that the transmitter has no effect on the metric of interest. To evaluate this assumption, we used a known fate model to assess the effect of transmitter type (i.e. tail-mounted or peritoneal implant) on short-term (one year) survival and a joint live—dead recovery model and results from a mark—recapture study to compare long-term (eight years) survival and body condition of ear-tagged only American beavers Castor canadensis to those equipped with radio transmitters in Voyageurs National Park, Minnesota, USA. Short-term (1-year) survival was not influenced by transmitter type ...


Ecology And Evolution Of Physiological Phenotypes In Garter Snakes (Thamnophis Spp.), Eric Joseph Gangloff Jan 2016

Ecology And Evolution Of Physiological Phenotypes In Garter Snakes (Thamnophis Spp.), Eric Joseph Gangloff

Graduate Theses and Dissertations

Physiology is the mechanistic link between how an individual organism experiences its external environment and higher-level biological effects. Since natural selection acts on whole phenotypes, understanding the evolution of physiology requires integration with other traits, such as behavior and life-history, at both the phenotypic and genetic levels. Accumulating evidence suggests that within-individual plasticity of physiological and behavioral traits is limited, resulting in stable individual phenotypes and differences among individuals. Using the model systems of two widespread North American vertebrates (the garter snakes Thamnophis sirtalis and T. elegans), the research presented here quantifies physiological variation across levels of biological organization: measures ...


Female And Male Life Tables For Seven Wild Primate Species, Anne M. Bronikowski, Marina Cords, Susan C. Alberts, Jeanne Altmann, Diane K. Brockman, Linda M. Fedigan, Anne Pusey, Tara Stoinski, Karen B. Strier, William F. Morris Jan 2016

Female And Male Life Tables For Seven Wild Primate Species, Anne M. Bronikowski, Marina Cords, Susan C. Alberts, Jeanne Altmann, Diane K. Brockman, Linda M. Fedigan, Anne Pusey, Tara Stoinski, Karen B. Strier, William F. Morris

Ecology, Evolution and Organismal Biology Publications

We provide male and female census count data, age-specific survivorship, and female age-specific fertility estimates for populations of seven wild primates that have been continuously monitored for at least 29 years: sifaka (Propithecus verreauxi) in Madagascar; muriqui (Brachyteles hypoxanthus) in Brazil; capuchin (Cebus capucinus) in Costa Rica; baboon (Papio cynocephalus) and blue monkey (Cercopithecus mitis) in Kenya; chimpanzee (Pan troglodytes) in Tanzania; and gorilla (Gorilla beringei) in Rwanda. Using one-year age-class intervals, we computed point estimates of age-specific survival for both sexes. In all species, our survival estimates for the dispersing sex are affected by heavy censoring. We also calculated ...


Hormonal And Metabolic Responses To Upper Temperature Extremes In Divergent Life-History Ecotypes Of A Garter Snake, Eric J. Gangloff, Kaitlyn G. Holden, Rory S. Telemeco, Lance H. Baumgard, Anne M. Bronikowski Jan 2016

Hormonal And Metabolic Responses To Upper Temperature Extremes In Divergent Life-History Ecotypes Of A Garter Snake, Eric J. Gangloff, Kaitlyn G. Holden, Rory S. Telemeco, Lance H. Baumgard, Anne M. Bronikowski

Ecology, Evolution and Organismal Biology Publications

Extreme temperatures constrain organismal physiology and impose both acute and chronic effects. Additionally, temperature-induced hormone-mediated stress response pathways and energetic trade-offs are important drivers of life-history variation. This study employs an integrative approach to quantify acute physiological responses to high temperatures in divergent life-history ecotypes of the western terrestrial garter snake (Thamnophis elegans). Using wild-caught animals, we measured oxygen consumption rate and physiological markers of hormonal stress response, energy availability and anaerobic respiration in blood plasma across five ecologically relevant temperatures (24, 28, 32, 35 and 38°C; 3 h exposure). Corticosterone, insulin and glucose concentrations all increased with temperature ...


Decades Of Field Data Reveal That Turtles Senesce In The Wild, Daniel A. Warner, David A. W. Miller, Anne M. Bronikowski, Fredric J. Janzen Jan 2016

Decades Of Field Data Reveal That Turtles Senesce In The Wild, Daniel A. Warner, David A. W. Miller, Anne M. Bronikowski, Fredric J. Janzen

Ecology, Evolution and Organismal Biology Publications

Lifespan and aging rates vary considerably across taxa; thus, understanding the factors that lead to this variation is a primary goal in biology and has ramifications for understanding constraints and flexibility in human aging. Theory predicts that senescence—declining reproduction and increasing mortality with advancing age—evolves when selection against harmful mutations is weaker at old ages relative to young ages or when selection favors pleiotropic alleles with beneficial effects early in life despite late-life costs. However, in many long-lived ectotherms, selection is expected to remain strong at old ages because reproductive output typically increases with age, which may lead ...


Analysis Of Odorants In Marking Fluid Of Siberian Tiger (Panthera Tigris Altaica) Using Simultaneous Sensory And Chemical Analysis With Headspace Solid-Phase Microextraction And Multidimensional Gas Chromatography-Mass Spectrometry-Olfactometry, Simone B. Soso, Jacek A. Koziel Jan 2016

Analysis Of Odorants In Marking Fluid Of Siberian Tiger (Panthera Tigris Altaica) Using Simultaneous Sensory And Chemical Analysis With Headspace Solid-Phase Microextraction And Multidimensional Gas Chromatography-Mass Spectrometry-Olfactometry, Simone B. Soso, Jacek A. Koziel

Agricultural and Biosystems Engineering Publications

Scent-marking is the most effective method of communication in the presence or absence of a signaler. These complex mixtures result in a multifaceted interaction triggered by the sense of smell. The objective was to identify volatile organic compound (VOC) composition and odors emitted by total marking fluid (MF) associated with Siberian tigers (Panthera tigris altaica). Siberian tiger, an endangered species, was chosen because its MF had never been analyzed. Solid phase microextraction (SPME) for headspace volatile collection combined with multidimensional gas chromatography-mass spectrometry-olfactometry for simultaneous chemical and sensory analyses were used. Thirty-two VOCs emitted from MF were identified. 2-acetyl-1-pyrroline, the ...


Influence Of Habitat And Intrinsic Characteristics On Survival Of Neonatal Pronghorn, Christopher N. Jacques, Jonathan A. Jenks, Troy W. Grovenburg, Robert W. Klaver Dec 2015

Influence Of Habitat And Intrinsic Characteristics On Survival Of Neonatal Pronghorn, Christopher N. Jacques, Jonathan A. Jenks, Troy W. Grovenburg, Robert W. Klaver

Natural Resource Ecology and Management Publications

Increased understanding of the influence of habitat (e.g., composition, patch size) and intrinsic (e.g., age, birth mass) factors on survival of neonatal pronghorn (Antilocapra americana) is a prerequisite to successful management programs, particularly as they relate to population dynamics and the role of population models in adaptive species management. Nevertheless, few studies have presented empirical data quantifying the influence of habitat variables on survival of neonatal pronghorn. During 2002–2005, we captured and radiocollared 116 neonates across two sites in western South Dakota. We documented 31 deaths during our study, of which coyote (Canis latrans) predation (n = 15 ...


Effects Of Climate And Plant Phenology On Recruitment Of Moose At The Southern Extent Of Their Range, Kevin L. Monteith, Robert W. Klaver, Kent R. Hersey, A. Andrew Holland, Timothy P. Thomas, Matthew J. Kauffman Aug 2015

Effects Of Climate And Plant Phenology On Recruitment Of Moose At The Southern Extent Of Their Range, Kevin L. Monteith, Robert W. Klaver, Kent R. Hersey, A. Andrew Holland, Timothy P. Thomas, Matthew J. Kauffman

Natural Resource Ecology and Management Publications

Climate plays a fundamental role in limiting the range of a species, is a key factor in the dynamics of large herbivores, and is thought to be involved in declines of moose populations in recent decades. We examined effects of climate and growing-season phenology on recruitment (8–9 months old) of young Shiras moose (Alces alces shirasi) over three decades, from 18 herds, across a large geographic area encompassing much of the southern extent of their range. Recruitment declined in 8 of 18 herds during 1980–2009, whereas others did not exhibit a temporal trend (none showed a positive trend ...


Transcriptomic Analyses Of Onecut1 And Onecut2 Deficient Retinas, Jillian J. Goetz, Jeffrey M. Trimarchi Jun 2015

Transcriptomic Analyses Of Onecut1 And Onecut2 Deficient Retinas, Jillian J. Goetz, Jeffrey M. Trimarchi

Genetics, Development and Cell Biology Publications

In this article, we further explore the data generated for the research article “Onecut1 and Onecut2 play critical roles in the development of the mouse retina”. To better understand the functionality of the Onecut family of transcription factors in retinogenesis, we investigated the retinal transcriptomes of developing and mature mice to identify genes with differential expression. This data article reports the full transcriptomes resulting from these experiments and provides tables detailing the differentially expressed genes between wildtype and Onecut1 or 2 deficient retinas. The raw array data of our transcriptomes as generated using Affymetrix microarrays are available on the NCBI ...