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Articles 1 - 29 of 29
Full-Text Articles in Zoology
Energy-Saving Hypothermia Reduces Flight Ability In Mourning Doves, Jennie M. Carr, Steven L. Lima
Energy-Saving Hypothermia Reduces Flight Ability In Mourning Doves, Jennie M. Carr, Steven L. Lima
Symposium 2012
Overwintering birds are frequently exposed to thermal challenges that can quickly decrease energy reserves, thus leading to an increase in the risk of starvation. During these periods of energetic hardship, many avian species use nocturnal hypothermia to conserve energy that would otherwise be lost remaining warm throughout the night (McKechnie & Lovegrove 2002). However, a cool body temperature (Tb) may limit a bird’s ability to monitor the environment and may slow their response to a potential threat. Thus, birds likely trade-off between the benefits of energy-saving hypothermia and the potential costs of reduced behavioral responsiveness to predators (Welton et al. …
Endurance And Exercise Physiology In Urosaurus Ornatus: Sex And Morph Differences?, Elizabeth Christine Foulkes
Endurance And Exercise Physiology In Urosaurus Ornatus: Sex And Morph Differences?, Elizabeth Christine Foulkes
All-Inclusive List of Electronic Theses and Dissertations
Locomotory performance has been the focus of many ecological and evolutionary studies, and lizards have been a model system. While several studies have demonstrated interspecific differences in performance, few have examined intraspeciflc variation in performance and the suites of underlying physiological traits in tree lizards ( Uro.,·aurns ornatus) a species with alternative reproductive tactics that show variation in spatial use patterns. To assess the functional ecology of movement behaviors of male morphs and or females, I examined variation in exertion, plasma metabolites, plasma steroid hormones, and muscle fiber types in ornate tree lizards ( Urosaurus ornalus). In my study population, …
Influential Parasites: Importance Of Haemosporidian Parasite Infection In The White-Throated Sparrow, Amanda P. Jamison
Influential Parasites: Importance Of Haemosporidian Parasite Infection In The White-Throated Sparrow, Amanda P. Jamison
All-Inclusive List of Electronic Theses and Dissertations
The study of parasite-mediated selection, as originally postulated by Hamilton and Zuk ( 1982) in birds is an area of intense study as it allows us to test the significance of the relationship between host and parasite. Recent developments of resistance to treatments in humans for parasite induced disease, creates a place for this important research and emphasizes the need to find the connections and interactions in this relationship between ecology and infectious disease. The development of new molecular techniques has made the study of parasitism in birds and mammals easier and provides an efficient sensitive . methodology to detect …
Prey Naiveté: Evolutionary And Ecological Implications, Jonathan G. Cox
Prey Naiveté: Evolutionary And Ecological Implications, Jonathan G. Cox
All-Inclusive List of Electronic Theses and Dissertations
Despite its ecological importance, the concept of prey naivete has become a biological truism that receives little study. I explored the evolution of naivete and its likely influence on two major ecological patterns: a) the historically greater destructiveness of freshwater predator introductions, and b) the greater strength of aquatic trophic cascades. In a review of the ecological literature, I demonstrate that the conditions for the evolution of naivete (isolation) exist in freshwater habitats at multiple spatial scales. In addition, I show that freshwater prey exhibit naivete which could be responsible for the high impacts of freshwater predator introductions. I then …
Foraging Behavior And Habitat Use By The Carolina Chickadee (Poecile Carolinensis) In West-Central Indiana, Ihan Chen
All-Inclusive List of Electronic Theses and Dissertations
I studied the effect of environmental conditions on the foraging behavior of Carolina chickadees (Poecile carolinensis) in Kiewig woods, property of Indiana State University, in West Terre Haute in west-central Indiana. My study method uses Optimal Foraging Theory (Brown 1988) to measure the giving up density (GUD) of Chickadees under different environmental conditions ( different resource abundances, different habitat types, different resource types and different seasons). For my experiment, I set up 24 feeding stations in three kinds of habitats ( open area, secondary growth woods and mature woods) within 4 sites and paired trays in each habitat X site. …
Seasonal Changes In Thermal Conductance Of Bat Pelage: A Comparison Of The Eastern Red Bat (Lasiurus Borealis) And Big Brown Bat (Eptesicus Fuscus), Daniel Justin Judy
Seasonal Changes In Thermal Conductance Of Bat Pelage: A Comparison Of The Eastern Red Bat (Lasiurus Borealis) And Big Brown Bat (Eptesicus Fuscus), Daniel Justin Judy
All-Inclusive List of Electronic Theses and Dissertations
Two species with different ecologies and natural histories use different morphological characteristics and thermoregulatory strategies to survive seasonal environmental changes. The purpose of this project was to investigate two such species, the eastern red bat (Lasiurus borealis) and big brown bat (Eptesicus fuscus). Red bats roost in the foliage of trees and occasionally leaf litter and have dense fur, as well as a furred interfemoral membrane. These two species differ in their morphology and roosting ecology in that big brown bats are generally larger with less dense fur, no fur on the interfemoral membrane, and are less exposed to environmental …
Landscape Ecology Of Crayfish (Decapoda: Cambaridae) In West-Central Indiana, Jacob L. Burskey
Landscape Ecology Of Crayfish (Decapoda: Cambaridae) In West-Central Indiana, Jacob L. Burskey
All-Inclusive List of Electronic Theses and Dissertations
I investigated the distribution, zoogeography, and habitat associations of crayfish (Decapoda: Cambaridae) in an area of west central Indiana containing glaciated and unglaciated regions. I first sampled 180 streams within Vigo, Clay, Owen, Sullivan, Greene, and Knox counties to establish spatial distributions of crayfish species and gather information on natural history and site specific habitat conditions. Ten species were found; Cambarus (Tubericambarus) polychromatus, Cambarus (Lacunicambarus) sp.A, Cambarus (Erebicambarus) laevis, Fallicambarus (Creaserinus)fodiens, Procambarus (Girardiella) gracilis, Procambarus (Ortmannicus) acutus, Orconectes (Triscellescens) immunis, Orconectes ( Gremicambarus) virilis, Orconectes ( Crockerinus) propinquus, - Orconectes (Faxinous) indianensis. The two rarest species were 0. indianensis (collected …
Effects Of Calcium Availability On The Reproductive Output Of Insectivorous Bats, Christina M. Booher
Effects Of Calcium Availability On The Reproductive Output Of Insectivorous Bats, Christina M. Booher
All-Inclusive List of Electronic Theses and Dissertations
Reproduction is a period of high calcium demand in vertebrates, and calcium deficiency can limit reproductive output in mammals. Insects are a poor calcium source, suggesting that insectivorous species are more likely to be calcium deficient. Pregnant big brown bats (Eptesicus fuscus) consume 10 times less calcium than they are estimated to require. To accommodate calcium demand during pregnancy, many mammals mobilize more calcium from the skeleton, and extensive bone loss has been observed in some bats during pregnancy. A conflict may arise between the female and developing embryo over allocation of limited calcium supplies, which could limit reproductive output …
Winter Behavior Of Big Brown Bats (Eptesicus Fuscus) In A Building Roost: Intermittent Feeding, Passive Rewarming, And Energy Conservation, Amy L. Fairbairn
Winter Behavior Of Big Brown Bats (Eptesicus Fuscus) In A Building Roost: Intermittent Feeding, Passive Rewarming, And Energy Conservation, Amy L. Fairbairn
All-Inclusive List of Electronic Theses and Dissertations
I investigated the use of torpor and arousals during winter of 2005 - 2006 by freeliving big brown bats (Eptesicus fuscus) by measuring skin temperature (remotely using data loggers) and used those measurements to estimate winter energy expenditure. Torpor bouts lasted for a mean of 3 .3 days ( d) with a mean of 3 .6 d and 2.2 d for males and females, respectively. There was no correlation between ambient temperature (Ta) during torpor and torpor bout length, but there was a significant correlation between Ta and length of the active period. Arousals lasted on average 5.0 hours (h). …
Rapid Assimilation Of Yolk Enhances Growth And Development Of Lizard Embryos From A Cold Environment, Melissa Ann Blake
Rapid Assimilation Of Yolk Enhances Growth And Development Of Lizard Embryos From A Cold Environment, Melissa Ann Blake
All-Inclusive List of Electronic Theses and Dissertations
Selection for rapid growth in cold environments results in a geographic pattern known as countergradient variation. The eastern fence lizard, Sceloporus undulatus, exhibits countergradient variation in growth rate across latitudinal clines. In a common-garden experiment, S. undulatus embryos from cold environments grew more efficiently than embryos warm environments, even when the energetic contents of eggs were equalized. To examine the physiological mechanisms of higher growth efficiency, I measured the energetics of embryos during the first 49 days of incubation. Specifically, I recorded body mass, residual yolk, total respiration, and developmental stage for embyos from two populations (Virginia and South Carolina). …
Comparing Immune Responses Of Juvenile And Adult Northern Fence Lizards, Sceloporus Undulatus, Zaïna Sandrine Kabange
Comparing Immune Responses Of Juvenile And Adult Northern Fence Lizards, Sceloporus Undulatus, Zaïna Sandrine Kabange
All-Inclusive List of Electronic Theses and Dissertations
Sex steroid hormones affect behavior and morphological traits important in sexual selection. Steroid hormones also play a role in the development and functioning of immune system components. The immunocompetence handicap hypothesis (Folstad and Karter, 1992) proposes that tradeoffs, mediated by plasma levels of testosterone, exist between the immune system and elaboration of secondary sexual traits. Endocrine-immune interactions are well documented in birds and mammals, and steroid hormones can be immunoenhancing or immunosuppressive. Relatively little work has examined the ontogeny of immune function, and the interactions between steroid hormones and the immune system in reptiles. The first experiment addressed the question …
Immune-Endocrine Interactions In The Lizard Sceloporus Undulatus Hyacinthinus: Testing An Assumption Of The Immunocompetence Handicap Hypothesis, Mukta Chakraborty
Immune-Endocrine Interactions In The Lizard Sceloporus Undulatus Hyacinthinus: Testing An Assumption Of The Immunocompetence Handicap Hypothesis, Mukta Chakraborty
All-Inclusive List of Electronic Theses and Dissertations
The immunocompetence handicap hypothesis (IHH) was proposed by Folstad and Karter ( 1992) to describe the role of the endocrine system in ensuring honesty of sexual signaling. Numerous studies have investigated the assumptions of the IHH, but currently there is mixed evidential support in favor of the IHH. The first chapter of this thesis is a review examinining these studies, their limitations, and proposed alternative models and future directions. The second chapter of this thesis presents a study in which we experimentally assesss the testosterone immunosuppression assumption in adult male Sceloporus undulatus lizards. We manipulated circulating androgen levels (Day 0) …
The Ecology And Relationships Of Chiropteran Ectoparasitic Communities Of Indiana, Christopher Michael Ritzi
The Ecology And Relationships Of Chiropteran Ectoparasitic Communities Of Indiana, Christopher Michael Ritzi
All-Inclusive List of Electronic Theses and Dissertations
The ectoparasites of bats are an important and largely unstudied area of mammalian ecology. The structure of ectoparasitic communities on bats, and their interactions with their hosts, may help in the understanding of roosting ecology, pa1iurition, and other aspects of host natural history. In this study, a vigorous survey of the ectoparasitic fauna of the bats ofindiana was undertaken, to determine if changes in species composition has occurred over the past 30 years. This survey resulted in the recovery of 51,980 parasites of 13 families from 2,816 host individuals of l O species, documenting 16 new host records and 14 …
Use Of Cre Recombinase And Sb Transposase To Engineer Transgenic Zebrafish, Jie Dong
Use Of Cre Recombinase And Sb Transposase To Engineer Transgenic Zebrafish, Jie Dong
All-Inclusive List of Electronic Theses and Dissertations
Current transgenesis has become easier for certain species due to the recent development of exogenous non site-specific recombination systems such as Sleeping Beauty (SB) transposon, and site-specific recombination systems such as Cre-loxP. Such recombination systems overcame two major problems caused by conventional transgenesis, position effect and copy number effect. SB is a reconstructed fish transposon that has shown to efficiently insert transgenes into heterologous mammalian chromosomes. The Cre-loxP system is frequently used to delete a given sequence from the genome or to target the integration of foreign DNA. The use of both systems in combination, however, has not yet been …
Thermal Adaptation Of Maternal And Embryonic Phenotypes In A Wide Spread Lizard (Sceloporus Undulatus), Christopher E. Oufiero
Thermal Adaptation Of Maternal And Embryonic Phenotypes In A Wide Spread Lizard (Sceloporus Undulatus), Christopher E. Oufiero
All-Inclusive List of Electronic Theses and Dissertations
Geographically widespread ectotherms encounter thermal gradients that generate variation in behavior, physiology and life-history. Because rates of physiological processes are very sensitive to temperature, cold environments are thought to favor genotypes that have relatively high capacities for growth despite environmental constraints. Two different adaptive responses can occur: (1) mothers in colder environments can allocate more energy to each offspring, or (2) offspring in colder environments make more efficient use of available resources. In this study, I examined both maternal adaptations and embryonic adaptations to environmental temperature. Evidence of maternal adaptations was assessed by examining the relationship between egg size and …
The Role Of Facial Pits In The Thermoregulatory Behavior Of Pitvipers (Viperidae: Crotalinae) Behavioral, Ecological And Phylogenetic Perspectives, Aaron R. Krochmal
The Role Of Facial Pits In The Thermoregulatory Behavior Of Pitvipers (Viperidae: Crotalinae) Behavioral, Ecological And Phylogenetic Perspectives, Aaron R. Krochmal
All-Inclusive List of Electronic Theses and Dissertations
Pitvipers (Viperidae: Crotalinae) possess unique sensory organs, the facial pits, capable of sensing subtle fluctuations in thermal radiation. Prey acquisition has long been regarded as the sole function of the facial pits. However, the ability to sense thermal radiation could also direct thermoregulatory behavior by remotely sensing nearby surface temperatures. Using a series ofbehavioral arenas of varying spatial complexity and ecological relevance, I surveyed the ability of western diamondback rattlesnakes (Crotalus atrox) to direct successful thermoregulatory movements with either functional or disabled facial pits. I found that western diamondback rattlesnakes could base thermoregulatory decisions on thermal radiation cues when their …
Movement Patterns In The Big Brown Bat (Eptesicus Fuscus), W. Adam Phelps
Movement Patterns In The Big Brown Bat (Eptesicus Fuscus), W. Adam Phelps
All-Inclusive List of Electronic Theses and Dissertations
Temperate insectivorous bats have historically used such structures as hollow trees, slabs of loose bark, foliage, and caves as roosts. With the advent of modern man in North America, human-built structures have become available to bats. Eptesicus fuscus is one of only two species of bats in the eastern United States that regularly utilize human structures as roosts, and the only one that regularly hibernates there. Individual ~- fuscus utilizing the attic of a church on the campus of St. Mary-of-the-Woods College (SMWC) were implanted with passive integrated transponder (PIT) tags. The electronic tag reader was placed near the only …
Thermoregulation In Swimming Mallard Ducklings (Anas Platyrhynchos), Aaron James Lynott
Thermoregulation In Swimming Mallard Ducklings (Anas Platyrhynchos), Aaron James Lynott
All-Inclusive List of Electronic Theses and Dissertations
Temperature regulation in birds has been studied for several decades. However, most studies have been limited to the thermal effects of air. This is surprising considering the abundance of waterfowl and the significant amount of time that many birds spend immersed in water. While we do know that water has a thermal conductivity that is 23 times that of air, the effect of water temperature on temperature regulation remains unknown. Though the thermal effect of water seemingly has a strong influence on the thermoregulation of birds, neonatal aquatic birds seem particularly susceptible. Many aquatic neonates, such as mallard ducklings, enter …
Habitat Use And Partitioning Between The Evening Bat, Nycticeius Humeralis, And The Big Brown Bat, Eptesicus Fuscus, In Indiana, Joseph E. Duchamp
Habitat Use And Partitioning Between The Evening Bat, Nycticeius Humeralis, And The Big Brown Bat, Eptesicus Fuscus, In Indiana, Joseph E. Duchamp
All-Inclusive List of Electronic Theses and Dissertations
The purpose of this study was to look at possible methods of prey-resource partitioning between two sympatric species of bat that have similar diets: the evening bal, Nycticeius humeralis, and the big brown bat, Eptesicus fuscus. Thirty-four adult female bats were radio tracked during this study: 11 evening bats and 11 big brown bats near a suburb oflndianapolis, IN in 2001, and 11 evening bats and l big brown bat in the bottomland forest of Prairie Creek, IN in 1999 and 2000. Habitat use and foraging patterns were evaluated using radio-telemetry and a geographic information system (GIS). Habitat selection was …
Natural History And Roosting Ecology Of The Eastern Pipistrelle, Pipistrellus Subflavus, Jacques Pierre Veilleux
Natural History And Roosting Ecology Of The Eastern Pipistrelle, Pipistrellus Subflavus, Jacques Pierre Veilleux
All-Inclusive List of Electronic Theses and Dissertations
A study concerning the natural history and roosting ecology of the eastern pipistrelle, Pipistrellus subtlavus, was conducted from 1997 to 2000, in southern Vigo County, Indiana. 111 Females began forming pre-maternity colonies during early May, and parturition began during late June. Pre-maternity colonies averaged 3.7 ± 1.9 individuals, and maternity colonies averaged 4.4 ± 2.4 individuals. Young pipistrelles first became volant during the third and fourth weeks of July. Pipistrelles were located in 59 roost trees. All roosts were located in foliage, either in clusters of dead leaves (n = 40) or in live foliage (n = 19). Oaks (Ouercus …
Black-Tailed Deer Habitat Changes In A Portion Of The Mount St. Helens Blast Zone, Ronald W. Davis
Black-Tailed Deer Habitat Changes In A Portion Of The Mount St. Helens Blast Zone, Ronald W. Davis
All-Inclusive List of Electronic Theses and Dissertations
This study utilized Landsat TM imagery to evaluate black-tailed deer habitat changes in a portion of the Mount Saint Helens blast zone in western Washington. The purpose of this study was to compare the post eruption vegetation changes with population trends for black tailed deer. The 55,000-acre study area comprises a Washington Department of Game Management unit (GMU 524) located to the northnorthwest of Mount St. Helens. Approximately 80% ofthe mostly forested study area was affected by lateral blast from the 1980 eruption. The area is predominantly private land managed for timber production but a small portion falls within the …
Avian Communities Of Large Reclaimed Mine Grasslands In Southwestern Indiana, Travis L. Devault
Avian Communities Of Large Reclaimed Mine Grasslands In Southwestern Indiana, Travis L. Devault
All-Inclusive List of Electronic Theses and Dissertations
Many bird species native to the tallgrnss prairie region oCthc central U.S. have declined drastically since European settlement due lo the destruction and alteration of grassland habitat. In this study, the breeding bird communities or 21 large reclaimed surface coal mine grasslands in a seven-county area or southwestern Indiana were examined with respect to species and guild composition, density, variation among sites, and grassland size. In addition, the vegetation characteristics of nine large mine grasslands were described and related to the presence and abundance or eight grasslund bird species common to the study areas. The immense size of mine grasslands …
The Ecology Of Franklin's Ground Squirrel In Indiana, Peter M. Benjamin
The Ecology Of Franklin's Ground Squirrel In Indiana, Peter M. Benjamin
All-Inclusive List of Electronic Theses and Dissertations
A reduction in the distribution of the Franklin's ground squirrel in the eastern portion of its range has led to its classification as a threatened species in Indiana. Information is lacking on this species' habitat requirements and population characteristics in Indiana, which limits management capabilities. The purpose of this study was to identify preferred habitat and population characteristics of the Franklin's ground squirrel in Indiana. Radio telemetry was conducted from April 1987 to September 1988 at 3 sites along a railroad right-of-way (ROW} in Benton County, Indiana. Land use and habitat types were mapped; species composition, density, percent cover, percent …
The Hellbender, Cryptobranchus Alleganiensis, In Indiana, William H. Kern Jr.
The Hellbender, Cryptobranchus Alleganiensis, In Indiana, William H. Kern Jr.
All-Inclusive List of Electronic Theses and Dissertations
Very 1 ittle was previously known ubout the Hellbender, Crrp:t:£branchus alleganiensis alleganiensis, in Indiana. The purpose of this study was to determine its current range and status in Indiana and collect life history information. The hell benders were captured by hand from under rocks and 1d th hoopnets baited with cut fish. They were tagged, measured, wei~hed, examined for large external parasites, wounds, and reproductive cond:i - tion. Stoma ch contents were taken with a non-lethal, stomach-flushfog technique. The animals were then released at the site of capture. Al though they were originally found in the Ohio River, \\'hi tewater …
The Systematics And Biology Of The Genus Zapus (Mammalia, Rodentia, Zapodidae), Gwilym S. Jones
The Systematics And Biology Of The Genus Zapus (Mammalia, Rodentia, Zapodidae), Gwilym S. Jones
All-Inclusive List of Electronic Theses and Dissertations
This study was undertaken to determine specific and intraspecific relationships within the genus Zapus (Mammalia, Rodentia, Zapodidae). Subspecies are based on the biological subspecies concept where the subspecies is an evolutionary step between a population and species. Approximately 20,000 Recent specimens and representatives of fossil taxa were examined. Cranial and postcranial characteristics, colors, and when available bacula, sperms and karyotypes were incorporated into the morphological analyses. In addition, published biological data were summarized and analyzed for evidence of primary and secondary isolating mechanisms. Supplemental data were acquired during collection of 450 specimens in midwestern and western United States, western Canada, …
The Effect Of Selenium On The Toxicity Of Methyl Mercury In Medaka Embryos, Peter H. Krauth
The Effect Of Selenium On The Toxicity Of Methyl Mercury In Medaka Embryos, Peter H. Krauth
All-Inclusive List of Electronic Theses and Dissertations
The purpose of this research was to investigate the effect of selenium upon methyl mercury poisoning in Medaka fish (Oryzias latipes) embryos. Selenium has been shown to provide a protective mechanism against mercury poisoning in some adult animals. Three experiments were done. In the first, selenium and methyl mercury were put directly in the growing medium of the eggs. In the second experiment, selenium was included in the diet of the parent fish. In the third part, methyl mercury exposure was delayed three days. The results of the first experiment were quite dramatic and showed a significant difference when selenium …
Morphological And Ecological Relationships Of Etheostoma Caeruleum And Etheostoma Spectabile In West Central Indiana, Dennis E. Clark
Morphological And Ecological Relationships Of Etheostoma Caeruleum And Etheostoma Spectabile In West Central Indiana, Dennis E. Clark
All-Inclusive List of Electronic Theses and Dissertations
Etheostoma caeruleum Storer and Jii. spectabile (Agassiz) are closely related members of the family Percidae, subfamily Percinae, tribe Etheostomatinae. This group, consisting mostly of small, brilliantly colored darters, has been partially characterized by Collett ( 1963). Several papers have been published dealing with the biology of these two species. One or both species have been described by Storer (1845), Agassiz (1854), Reeves (1907, but see Trautman, 1930), Trautman (1930, 1957) Knapp (unpublished Ph.D. dissertation), Distler (1968), and others. Trautman (1930, 1957) Gerking (1945), and Hubbs and Lagler (1947) reported that h caeruleum lives in larger and faster streams, whereas JL_ …
A Balanced Salt Culture Medium For Halteria Grandinella, Yee Wan Mark
A Balanced Salt Culture Medium For Halteria Grandinella, Yee Wan Mark
All-Inclusive List of Electronic Theses and Dissertations
The animals that the writer worked with liere the unicellular organisms called liaJ,tez:ia grandil.!iilJ.a• They belong to the Pl~lum Protozoa and are placed in the Class Ciliata and the Order Oligotrichia. llftltez'A gDJ}gini•U, like most protozoa, ll ve in waters but they seem to prefer qUiet pools, lakes, and ponds in which aqua i;;!c plants are growing and in which there is much organic matter.
Amphibians And Reptiles Of Vigo County, Indiana, David Rubin
Amphibians And Reptiles Of Vigo County, Indiana, David Rubin
All-Inclusive List of Electronic Theses and Dissertations
Vigo County, Indiana is an extremely interesting area for herpetological studyo Its geographical location allows for the interplay of faunal elements from east, west, north, and south (Smith and minton, 1957) and its physiography permits investigation of the relations of terrain and glacial geology to herpetofaunal distribution. Blatchley (1891, 1899) published two papers on the amphibians and reptiles of the county and Allyn and Shockley (1938) reported on the county's salamandersa The present paper has the following objectives: to determine which species occur or have recently occurred in Vigo County; to determine amphibian and reptile distribution in the county; to …