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Articles 991 - 1020 of 2638

Full-Text Articles in Poultry or Avian Science

Evaluation Of Drug-Resistant Enterobacteriaceae In Retail Poultry And Beef, Agnes Kilonzo-Nthenge, Emily Rotich, Samuel N. Nahashon Apr 2013

Evaluation Of Drug-Resistant Enterobacteriaceae In Retail Poultry And Beef, Agnes Kilonzo-Nthenge, Emily Rotich, Samuel N. Nahashon

Agricultural and Environmental Sciences Faculty Research

There has been increasing concern on the emergence of multidrug-resistant foodborne pathogens from foods of animal origin, including poultry. The current study aimed to evaluate antibiotic-resistant Enterobacteriaceae from raw retail chicken/turkey parts (thigh, wings, breast, and ground) and beef meat (ground and chunks) in Middle Tennessee. Resistance of the collected Enterobacteriaceae to a panel of antibiotics was determined by the Kirby-Bauer disk diffusion test. Retail meats were also assayed for the presence of Salmonella spp. and Escherichia coli O157:H7. Two hundred thirty-seven samples representing 95.2% of the total of 249 samples tested were positive for Enterobacteriaceae. The level of contamination …


2012–2013 Christmas Bird Counts, Don Paseka Mar 2013

2012–2013 Christmas Bird Counts, Don Paseka

Nebraska Bird Review

Fifteen counts were held during the 2012–2013 season. The weather was seasonable and mostly dry with some open water. The total species count of 139 was the same as last year, but less than the record total of 149 counted in 2010–2011. In all, 23 species set new or tied previous high counts, including a new species for Nebraska counts, a single Bewick's Wren at Scottsbluff. The incredible number of European Starlings (250,444) found in the North Platte circle was largely responsible for the new high count (268,232) of that species and pushed the overall number of individuals for all …


An Unexpected Sandhill Crane Experience, Clem Klaphake Mar 2013

An Unexpected Sandhill Crane Experience, Clem Klaphake

Nebraska Bird Review

On April 24, 2012, I spent some time birding in Saunders County at Memphis SRA, Lake Wanahoo, and various other lakes in the Malmo, Nebraska, area. . . . I headed over to Redtail WMA in Butler County. While watching . . . activity, I was facing north on a north-facing hillside. I briefly stopped to turn around and look behind me to the south, and I saw a large bird . . . and realized it was a Sandhill Crane. It came in on quite a high flight, and I quickly put my spotting scope on it. I realized …


Color Photo Section [March 2013, Pp. 21–28] Mar 2013

Color Photo Section [March 2013, Pp. 21–28]

Nebraska Bird Review

Photographs of Hoary Redpolls, Black-chinned Hummingbird, Sage Thrashers (p. 21); Red Crossbills, Hooded Oriole, Golden-winged Warbler (p. 21); Double-crested Cormorant, Burrowing Owl, American Kestrel, Grasshopper Sparrow, Eared Grebes (p. 23); Western Kingbird, Pileated Woodpecker, Cliff Swallows, Say’s Phoebe (p. 24); Northern Flicker (nest scenes), Eastern Screech Owl, House Wren (p. 25); Wilson’s Snipe, White-rumped Sandpiper, Willet, Piping Plover, Least Sandpiper, Spotted Sandpiper (p. 26); Yellow-crowned Night Herons, Glaucous-winged Gull, Laughing Gull, Sabine’s Gull (p. 27); Canada Geese (one leucistic), hybrid Canada/domestic Greylag Goose, Black-headed Grosbeak, and Eastern-Screech Owl (p. 28).


First Documented Nebraska Record Of Black-Chinned Hummingbird (Archilochus Alexandri), Kathy Delara, Marie Smith Mar 2013

First Documented Nebraska Record Of Black-Chinned Hummingbird (Archilochus Alexandri), Kathy Delara, Marie Smith

Nebraska Bird Review

On the morning of May 7, 2012, I . . . saw a post on Jane's Greenhouse [Facebook] wall about a hummingbird that was in one of their greenhouses. . . . Jane's Greenhouse is a small retail greenhouse located on the west edge of Scottsbluff, Nebraska. Fully expecting to see a Broad-tailed Hummingbird, I went inside to see if it was still there. . . . and saw the hummingbird flitting around the flowers in the hanging baskets that were for sale. . . . I watched it for a minute or so and saw that it was a …


The Status Of A Pa Endangered Bird- The Upland Sandpiper, Paul A. Di Salvo, Kalley S. Hansel, Jessica L. Zupancic, Andrew M. Wilson Mar 2013

The Status Of A Pa Endangered Bird- The Upland Sandpiper, Paul A. Di Salvo, Kalley S. Hansel, Jessica L. Zupancic, Andrew M. Wilson

Student Publications

The upland sandpiper (Bartramia Longuardia) has experienced a steep population decline in the northeastern U.S. since the mid-20th Century. In Pennsylvania it was found in less than 0.5% of atlas blocks during the Second Atlas of Breeding Birds in Pennsylvania project (2nd PBBA; 2004-09) and breeding was confirmed at only two locations. Due to continued declines and a small population size, the upland sandpiper was listed as PA endangered in 2012. During May 2012 the areas around 15 2nd PBBA upland sandpiper sightings were resurveyed by Gettysburg College students and volunteer birdwatchers. The aim was …


Winter Field Report, December 2012 To February 2013, W. Ross Silcock Mar 2013

Winter Field Report, December 2012 To February 2013, W. Ross Silcock

Nebraska Bird Review

This winter was notable for its lack of snow cover and above-normal temperatures, which allowed a large variety of species to remain in the state for at least the first half of the period. Notable among these species were waterfowl and native sparrows, but additional observations tended to confirm the mildness of the winter: Blue-winged Teal lingering into Dec, Sandhill Cranes wintering again in central Nebraska, a record early egg date for Great Horned Owl, a Sandhills midwinter Loggerhead Shrike, and wintering Green-tailed Towhee and Dickcissel.

The most significant event was the Common Redpoll invasion; these birds were reported statewide …


Nebraska Bird Review (March 2013) 81(1), Whole Issue Mar 2013

Nebraska Bird Review (March 2013) 81(1), Whole Issue

Nebraska Bird Review

Winter Field Report, December 2012–February 2013 ... 2

An Unexpected Sandhill Crane Experience … 29

First Documented Nebraska Record of Black-chinned Hummingbird (Archilochus alexandri) … 30

2012–2013 Christmas Bird Counts in Nebraska ... 32

NOU Annual Treasurer’s Report for 2012 ... 46

Subscription and Organization Information ... 47


Nebraska Ornithologists’ Union Treasurer’S Report, December 31, 2012 Mar 2013

Nebraska Ornithologists’ Union Treasurer’S Report, December 31, 2012

Nebraska Bird Review

One-page spreadsheet constituting the Nebraska Ornithologists' Union treasurer's report at year end (December 31) of 2012. The grand total is $56,779.43.


Subscription And Organization Information [March 2013] Mar 2013

Subscription And Organization Information [March 2013]

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $15 in the United States, $18 in Canada and $30 in all other countries, payable in advance. Single copies are $4 each, postpaid, in the United States, $5 in Canada, and $8 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101.

Memberships in the NOU (on a calendar-year basis only): Active Household …


Release Of Avian Neurotensin In Response To Intraluminal Contents In The Duodenum Of Chickens, Teresa F. Degolier, Robert E. Carraway Feb 2013

Release Of Avian Neurotensin In Response To Intraluminal Contents In The Duodenum Of Chickens, Teresa F. Degolier, Robert E. Carraway

Biological Sciences Faculty Publications

Peripheral and hepatic-portal plasma levels of neurotensin (NT) in fed and fasted chickens were determined using RIA. Portal levels of NT1-13 (fed = 61.3 ± 3.9 fmol/mL; fasted = 44.5 ± 3.9 fmol/mL) were significantly higher than peripheral levels (fed = 8.2 ± 3.3 fmol/mL; fasted = 7.8 ± 3.0 fmol/mL) collected from the wing vein, indicating that some NT is metabolized in the liver. Portal plasma levels of NT collected from fed birds were also significantly higher than portal plasma levels of NT collected from fasted birds. Neurotensin, as identified by HPLC, exhibited a 2-fold increase in plasma extracts …


Evaluation Of Electrostatic Particle Ionization And Biocurtain™ Technologies To Reduce Air Pollutants From Broiler Houses, Sheryll B. Jerez, W Faulkner, K. D. Casey, M S. Borhan, R. A. Smith Jan 2013

Evaluation Of Electrostatic Particle Ionization And Biocurtain™ Technologies To Reduce Air Pollutants From Broiler Houses, Sheryll B. Jerez, W Faulkner, K. D. Casey, M S. Borhan, R. A. Smith

Faculty Publications

The continuing growth of poultry production, along with the increasing urbanization of rural areas, is leading to more odor-related complaints from neighboring communities and more scrutiny from policy makers. It is, therefore, in the best interest of poultry producers to look at control methods for abating odors. Previous studies have shown that substantial amounts of volatile and odorous compounds are adsorbed and transported by dust particles. Thus, by reducing the amount of dust emitted from poultry facilities such as broiler houses, odor may be reduced as well. The objective of this study was to evaluate the effectiveness of two commercially …


Effects Of Climate Change On Phenology Of Blackbirds And Orioles (Icterids) In Eastern South Dakota, Kelsey Bedford, Nicole Burkard, Brandi Crider, Emma Barnett, N. H. Troelstrup Jr. Jan 2013

Effects Of Climate Change On Phenology Of Blackbirds And Orioles (Icterids) In Eastern South Dakota, Kelsey Bedford, Nicole Burkard, Brandi Crider, Emma Barnett, N. H. Troelstrup Jr.

Oak Lake Field Station Research Publications

Birds are among the first responders to climate change, often having clearly observable phenological responses to less perceptible levels of climate shift. Declines in populations of a number of bird species have been witnessed both in the United States and abroad, with up to a 48% decline in grassland birds of the Central U.S. Understanding changes in bird abundance and distribution is essential because birds supply a wide variety of critical ecosystem services, including pollination and pest control. While the effects of climate change on many bird species’ phenology have been studied intensely, research on the family Icteridae is limited. …


Seasonal Variation In Offspring Sex Ratio In The Snowy Plover, Sarah T. Saalfeld, Warren C. Conway, David A. Haukos, William P. Johnson Jan 2013

Seasonal Variation In Offspring Sex Ratio In The Snowy Plover, Sarah T. Saalfeld, Warren C. Conway, David A. Haukos, William P. Johnson

Faculty Publications

The Snowy Plover (Charadrius nivosus) is unique in being a determinate layer of an odd modal clutch size and in having a variable mating system in which female brood desertion occurs regularly. These traits make determining Snowy Plover offspring sex ratios important not only for long-term population stability, as the species is of conservation concern, but also for application to sex allocation theory. In this study, we determined Snowy Plover offspring sex ratios, examined differential costs of producing male and female offspring, and evaluated sex ratio variation in relation to maternal condition, habitat condition, and time during the …


Effects Of A Proprietary Premix On Productive Performance And Egg Quality Of White And Brown Egg Laying Hens Fed Diets High In Distillers Dried Grains With Solubles (Ddgs), Megan D. Van Benschoten Jan 2013

Effects Of A Proprietary Premix On Productive Performance And Egg Quality Of White And Brown Egg Laying Hens Fed Diets High In Distillers Dried Grains With Solubles (Ddgs), Megan D. Van Benschoten

Theses and Dissertations--Animal and Food Sciences

The objective of this thesis was to evaluate inclusion of up to 35% by-product DDGS (with reduced Ca and P) with and without addition of a proprietary premix (enzyme and antioxidant; Alltech Inc.) on productive performance and egg quality of white and brown egg laying hens. A total of 288 white or brown hens were randomly allocated to one of the following treatments: 1) corn-soybean meal (control), 2) 25% DDGS, 3) 25% DDGS plus premix, 4) 35% DDGS, and 5) 35% DDGS plus premix. Hen body weight values were impaired with addition of 25 and 35% DDGS when compared to …


Parsimony And Model-Based Analyses Of Indels In Avian Nuclear Genes Reveal Congruent And Incongruent Phylogenetic Signals, Tamaki Yuri, Rebecca T. Kimball, John Harshman, Rauri C.K. Bowie, Michael J. Braun, Jena L. Chojnowski, Kin-Lan Han, Shannon J. Hackett, Christopher J. Huddleston, William S. Moore, Sushma Reddy, Frederick H. Sheldon, David W. Steadman, Christopher C. Witt, Edward L. Braun Jan 2013

Parsimony And Model-Based Analyses Of Indels In Avian Nuclear Genes Reveal Congruent And Incongruent Phylogenetic Signals, Tamaki Yuri, Rebecca T. Kimball, John Harshman, Rauri C.K. Bowie, Michael J. Braun, Jena L. Chojnowski, Kin-Lan Han, Shannon J. Hackett, Christopher J. Huddleston, William S. Moore, Sushma Reddy, Frederick H. Sheldon, David W. Steadman, Christopher C. Witt, Edward L. Braun

Natural Sciences Faculty Publications

Insertion/deletion (indel) mutations, which are represented by gaps in multiple sequence alignments, have been used to examine phylogenetic hypotheses for some time. However, most analyses combine gap data with the nucleotide sequences in which they are embedded, probably because most phylogenetic datasets include few gap characters. Here, we report analyses of 12,030 gap characters from an alignment of avian nuclear genes using maximum parsimony (MP) and a simple maximum likelihood (ML) framework. Both trees were similar, and they exhibited almost all of the strongly supported relationships in the nucleotide tree, although neither gap tree supported many relationships that have proven …


The Effects Of Actigen® And Threonine Supplementation On Growth Parameters, Immune Function, And Intestinal Health In Monogastrics, Lindsay Good Jan 2013

The Effects Of Actigen® And Threonine Supplementation On Growth Parameters, Immune Function, And Intestinal Health In Monogastrics, Lindsay Good

Theses and Dissertations--Animal and Food Sciences

The objectives of these experiments were to evaluate the main effects and interactive effects between dietary supplementation of a mannan oligosaccharide based product, Actigen® (ACT), and different levels of threonine in monogastrics, as evidenced by growth parameters, immune function, and intestinal health characteristics.

In nursery piglets, ACT supplementation decreased average daily feed intake (P=0.04), but had no effect on body weight or feed conversion ratio. There were no noted differences between threonine levels on performance traits. There were no consistent differences in complete blood count or cytokine gene expression profiles in the blood. The highest level of threonine, …


Dietary Antioxidant Supplementation (Economase–Bioplex) To Alleviate Adverse Impacts Of Oxidized Oil On Broiler Meat Quality: A Chemical, Textural, Enzymatic, And Proteomic Study, Rebecca Delles Jan 2013

Dietary Antioxidant Supplementation (Economase–Bioplex) To Alleviate Adverse Impacts Of Oxidized Oil On Broiler Meat Quality: A Chemical, Textural, Enzymatic, And Proteomic Study, Rebecca Delles

Theses and Dissertations--Animal and Food Sciences

This study investigated the influence of dietary antioxidants and quality of oil on the oxidative and enzymatic properties of chicken broiler meat stored in an oxygen-enriched package (HiOx: 80% O2/20% CO2) in comparison with air-permeable polyvinylchloride (PVC) or skin (SK) packaging systems during retail display 2–4 °C for up to 14, 7, and 21 d, respectively. Broilers were fed a diet either with a low-oxidized oil (peroxide vale POV 23 meq O2/kg) or with a high-oxidized oil (POV 121 meq O2/kg), supplemented with an antioxidant pack (200 ppm EconomasE and organic minerals …


Influence Of Latitude On The Winter Abundance Of Red-Tailed Hawks (Buteo Jamaicensis) And American Kestrels (Falco Sparverius) In Illinois, Given Harper, Anna Groves, Vic Berardi, Paul Sweet, Jance Sweet, Angelo Capparella Jan 2013

Influence Of Latitude On The Winter Abundance Of Red-Tailed Hawks (Buteo Jamaicensis) And American Kestrels (Falco Sparverius) In Illinois, Given Harper, Anna Groves, Vic Berardi, Paul Sweet, Jance Sweet, Angelo Capparella

Scholarship

We use five years of data from 18 routes surveyed to determine the temporal stability of a first reported 100 years pattern, and reconfirmed that the abundance of winter 50 years ago tailed Hawk and American Kestrel decreases with increasing latitude, being more high in the central regions of Illinos in the northern regions. Trained volunteers conducted sampling ( n  = 143) a month driving along selected routes from December to February, from 2004-2005 to 2008-2009. We found significant increases in the abundance of both species from the northern regions to the central regions of Illinois. No significant effects of …


The Effect Of Visual Wulst Lesions And Trigeminal Nerve Sectioning On The Discrimination Of Magnetic Inclination In The Homing Pigeon (Columba Livia), Merissa Acerbi Jan 2013

The Effect Of Visual Wulst Lesions And Trigeminal Nerve Sectioning On The Discrimination Of Magnetic Inclination In The Homing Pigeon (Columba Livia), Merissa Acerbi

Honors Projects

The ability of homing pigeons to return to their loft from unknown places has fascinated scientists for centuries. It is well established that homing pigeons, like migratory birds, posses an innate magnetic inclination compass to determine direction by measuring the angle between the magnetic field vector and the Earth's surface. Recent work has indicated that the avian magnetic compass is light mediated and appears to mediate magnetic information to the brain. This occurs via a visual pathway with processing in the visual Wulst area of the forebrain. There is, however, also evidence from other avian species that magnetic direction may …


Consumer Perceptions Of Poultry Production In Arkansas: Perceptions Analysis, Stuart Estes, Leslie D. Edgar Jan 2013

Consumer Perceptions Of Poultry Production In Arkansas: Perceptions Analysis, Stuart Estes, Leslie D. Edgar

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Poultry production holds an important place in Arkansas economically and as a food source. The importance of poultry production ultimately hinges on the demands of the consumer. With this in mind, this study surveyed consumers to assess their perceptions of poultry production in Arkansas. The instrument, used to survey consumers, was created by the researcher and an expert committee at the University of Arkansas. Consumers were interviewed through direct communication at grocery stores in northwest Arkansas. Data gathered from the study were analyzed for descriptive and correlational statistics. Two key findings were that consumers were unsure about the use of …


Nebraska Bird Review (December 2012) 80(4), Whole Issue Dec 2012

Nebraska Bird Review (December 2012) 80(4), Whole Issue

Nebraska Bird Review

Fall Field Report, August–November 2012 … 126

Bellevue Fall Field Days ... 158

Notes on a Greater Sage-Grouse Record by Levi L. Mohler ... 162

Index to Volume 80 ... 164

Subscription and Organization Information ... 175


Fall Field Report, August–November 2012, W. Ross Silcock Dec 2012

Fall Field Report, August–November 2012, W. Ross Silcock

Nebraska Bird Review

Some of you may be curious about the sources of sightings I use to compile these reports. The primary sources are reports posted to NEBirds, the Nebraska Listserv, along with the full reports (early and late dates, peak counts for all species) sent by a few faithful reporters around the state. The latter reports are very useful overviews of movements in the reporters' regions. Lately, thanks to a suggestion by Clem Klaphake, I have been receiving the eBird daily rarity report for Nebraska which I find to be an excellent check against reports posted to NEBirds, while providing a few …


Notes On A Greater Sage-Grouse Record By Levi L. Mohler, Mark A. Brogie Dec 2012

Notes On A Greater Sage-Grouse Record By Levi L. Mohler, Mark A. Brogie

Nebraska Bird Review

In Nebraska, Greater Sage-Grouse has been considered an uncommon casual winter visitor in the extreme northwest (Sharpe et al. 2001). This species may now be extirpated in Nebraska due to habitat loss. There have been no known Nebraska observations of Greater Sage-Grouse in the last 25 years. The only documented record accepted by the NOURC of Greater Sage-Grouse in Nebraska (Accession #243) is a description of an adult male in September 1987 in extreme northwest Sioux County by Douglas Kapke (Grenon AG. 1990).

In 2002 Wayne Mollhoff received the following record from Levi L. Mohler and submitted it to the …


Bellevue Fall Field Days, Janis Paseka Dec 2012

Bellevue Fall Field Days, Janis Paseka

Nebraska Bird Review

The 2012 NOU Fall Field Days was held in conjunction with the Inland Bird Banding Association meeting at Fontenelle Forest Nature Center in Bellevue on October 26–28. The meeting, organized by Betty Grenon and Rick Schmid, drew a total of 104 attendees, including 33 members of the Inland Bird Banding Association.

On Friday evening, Phil Swanson's photographic presentation "Welcome to Omaha . . . It's for the Birds" included a brief history of Omaha, an overview of area birding hotspots, and photos of many of the birds which can be seen in the area. Following the presentation, a group led …


The Effects Of Social And Environmental Enrichments On Leg Strength And Welfare Of Tom Turkeys, Patricia A. Weber Dec 2012

The Effects Of Social And Environmental Enrichments On Leg Strength And Welfare Of Tom Turkeys, Patricia A. Weber

Department of Animal Science: Dissertations, Theses, and Student Research

Two trials (T1, T2) were conducted to determine the effects of enrichment: A) broiler chick addition on early mortality and B) providing environmental enrichments on leg strength and welfare of tom turkeys. Trial 1A utilized 248 1d poults and 8 3d broiler chicks. Four pens of 32 poults were placed for the control. Four pens of 30 poults and two 3d broiler chicks were placed for the trt group. Trial 2A utilized 296 1d poults and 24 3d broiler chicks. Four trts were randomly divided among 16 pens (20 birds/pen). Trt 1 brooders were placed with assistance finding resources. Trt …


The Rise And Fall Of Kin Structure In The Neotropical, Family-Living Buff-Breasted Wren (Cantorchilus Leucotis) In Gamboa, Panama, Sarah C. Alessi Dec 2012

The Rise And Fall Of Kin Structure In The Neotropical, Family-Living Buff-Breasted Wren (Cantorchilus Leucotis) In Gamboa, Panama, Sarah C. Alessi

Masters Theses

Family-living species provide an exciting model to examine how natal dispersal and kin structure influence genetic structuring within local populations. Juvenile buff-breasted wrens (Cantorchilus leucotis) of both sexes delay dispersal and exhibit short-distance natal dispersal, which should lead to kin-structured populations in which relatives of both sexes occupy neighboring territories. Blood samples collected from juvenile and adult wrens in Gamboa, Panama were analyzed using microsatellite markers to determine whether related individuals are spatially clustered on neighboring territories, spatial clusters of relatives change over time, and if kin structure is sex-specific. Global and local spatial autocorrelation analyses detected genetic …


Index To Volume 80 Dec 2012

Index To Volume 80

Nebraska Bird Review

Addy, Darren 47, 75

Albrecht, Jeff 75

Albright, Patty 111

Allen, Edward 128

Allison, Scott 28, 48

American Ornithologists' Union 120

Anderson, Leif 129

Anthony, Courtney 75

Armknecht, Henry 88

Arnett, Gladys 128

Avocet, American 54, 79, 93, 137

. . .

Wren: Bewick's 99; Carolina 13, 36–37, 63, 99, 110, 147, 161; House 63, 81, 99, 106–110, 147; Marsh 13, 36-37, 63, 81, 99, 147, 161; Rock 63, 99, 119, 147; Sedge 63, 81, 99, 108, 147; Winter 13, 36–37, 63, 147, 160

Wright, Rick 48

Yellowlegs: Greater 10, 54, 93, 137, 160; Lesser 46, 54, 79, 93, 137 …


Subscription And Organization Information [December 2012] Dec 2012

Subscription And Organization Information [December 2012]

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $15 in the United States, $18 in Canada and $30 in all other countries, payable in advance. Single copies are $4 each, postpaid, in the United States, $5 in Canada, and $8 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101 (or at the email address listed below).

Memberships in the NOU …


Winter Ecology Of Sandhill Cranes (Grus Canandensis) In Northern Mexico, Ingrid Barcelo Dec 2012

Winter Ecology Of Sandhill Cranes (Grus Canandensis) In Northern Mexico, Ingrid Barcelo

School of Natural Resources: Dissertations, Theses, and Student Research

Sandhill Cranes (Grus canadensis) are a widespread species in North America and one of the most studied cranes in the world. However, most of the research has focused on the breeding grounds of Canada and Alaska and the staging grounds of Nebraska. Although an important proportion of the Mid-continent Population of Sandhill Cranes winters in northern Mexico, little information exists on distribution, status, and ecology of the species in Mexico. The goal of this dissertation was to provide new information on Sandhill Crane winter ecology from a regional perspective to better understand population trends. I examined the physiological …