Zoology Commons^™

Spring Field Report, March-May 2005, W. Ross Silcock

Nebraska Bird Review

As is often the case, the spring season had something for everyone: potential range expansions, an incredible shorebird migration through the eastern Rainwater Basin, a scarcity of migrant warblers, and some genuinely rare birds.

Timely spring rainfall transformed the Rainwater Basin, leaving large areas of sheetwater for migrant shorebirds and improving the attractiveness of wetlands, particularly renovated wetlands, to certain breeding species.

Perhaps the most important bits of information we can record here are changes in breeding ranges or behavior. Of significance here is the second nesting record for Hooded Merganser, the increasing occurrence of Greater Prairie-Chickens at Rainwater Basin …

Subscription And Organization Information [June 2005]

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 Mary Lou Pritchard, NOU Librarian, c/o University of Nebraska State Museum, W-436 Nebraska Hall, Lincoln, NE 68588-0514.

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

Annual Meeting At Calamus Reservoir

Nebraska Bird Review

The 106th Annual Meeting of the NOU was held on May 13–15, 2005, at the Calamus Lodge near Burwell. Sixty-four members and guests were in attendance.

The slate of candidates presented by the nominating committee was accepted by the members present. The officers elected were Dave Heidt, president (replacing Alice Kenitz), Urban Lehner, vice-president (replacing Dave Heidt), Betty Grenon, treasurer, Kevin Poague, secretary (replacing Mitzi Fox), Mary Lou Pritchard, librarian, Loren Padelford, director, and Janis Paseka, editor.

Friday evening's speaker was Scott Taylor, Upland Game Program Manager for Nebraska Game and Parks, who spoke about current upland game bird research …

Carnivores From The Mexican State Of Puebla: Distribution, Taxonomy, And Conservation, Jose Ramirez-Pulido, Noe Gonzalez-Ruiz, Hugh H. Genoways

University of Nebraska State Museum: Mammalogy Papers

We examined 96 museum specimens belonging to 14 species of Carnivora from the Mexican State of Puebla. In addition, four species were documented based on literature records and by indirect evidence. The carnivorous mammals of Puebla belong to 5 families, 18 genera, 18 species and 23 subspecies. Eight of these 23 taxa are reported herein for the first time from the state of Puebla. Of the 18 species, Herpailurus yagouaroundi, Lontra longicaudis, Taxidea taxus, and Galictis vittata are considered by Norma Oficial Mexicana as threatened species, Leopardus wiedii and Eira barbara in danger of extinction, and Potos flavus is …

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.

Attention-Altering Signal Interactions In The Multimodal Courtship Display Of The Wolf Spider Schizocosa Uetzi, Eileen A. Hebets

Eileen Hebets Publications

Complex signals are common throughout the animal kingdom, consisting of one or more signals in one or more sensory modalities presented within a single display. I tested an efficacy-based backup hypothesis of complex signal function using the bimodal courtship signaling wolf spider Schizocosa uetzi. This hypothesis predicts that the visual and vibratory courtship displays function as backups to each other in the presence of environmental variability. I compared mating frequencies across four environmental treatments in which the visual and vibratory environments were manipulated independently in a 2 × 2 design with visual treatments of light/dark (i.e., visual signal present/absent) …

Mammals Of The Cosigüina Peninsula Of Nicaragua, Hugh H. Genoways, Robert M. Timm

University of Nebraska State Museum: Mammalogy Papers

Nicaragua’s Cosigüina Peninsula, located at the northwestern tip of the country, is one of the most poorly studied biotic regions in Central America. The peninsula has been occupied for millennia because the climate of the region supported human habitation and because of its strategic position along the rich Pacific coast. The combination of long-term occupancy by humans and the cataclysmic eruptions of Volcán Cosigüina have produced a heavily impacted landscape. During the 1960s, the University of Kansas conducted multiyear field surveys of the terrestrial mammals on the peninsula and the adjacent mainland to quantify species diversity, relationships, abundances, habitat use, …

Availability Of Suitable Habitat For Northern River Otters In South Dakota, Alyssa M. Kiesow, Charles D. Dieter

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

Currently, the northern river otter (Lontra canadensis) is listed as a threatened species in South Dakota. We determined whether adequate habitat was available for reintroducing river otters in South Dakota. The 17 rivers/creeks included in the analysis were selected according to stream size, water gradient, and water permanence. A vegetation transect was conducted and a water sample was collected at each study site, ranging from one to four per river. Rivers/creeks were rated (1 = least suitable to 5 = most suitable) according to habitat requirements of river otters in the following categories: stream characteristics, watershed features, water …

Hibernation Is Recorded In Lower Incisors Of Recent And Fossil Ground Ssquirrels (Spermophilus), Tom Goodwin, Gail R. Michener, Daniel Gonzalez, Caroline E. Rinaldi

Faculty Publications

Incremental dentin and associated enamel, features visible on the surface of lower incisors, were characterized for 3 species of ground squirrels (Spermophilus): Pleistocene and Recent S. elegans, Recent S. richardsonii, and Recent S. parryii. A hibernation mark was evident in incisor dentin and enamel, most characteristically as a sleeve of enamel terminating basally adjacent to medially depressed dentin with indistinct and often very fine increments. This mark was absent in juveniles but present in older animals of both sexes for at least 6 weeks after hibernation, eventually being lost through growth and wear of the incisor. Temporal association with hibernation …

The Defensin Gene In Dermacentor Variabilis And Ixodes Scapularis, Katherine Corbett Seguin

Biological Sciences Theses & Dissertations

In response to microbial challenge, invertebrates rely on their innate immune response to recognize and destroy harmful pathogens. One of the primary proteins produced by the response and that has been observed in many invertebrates, including insects, mussels, and ticks, is defensin. These proteins are responsible for forming pores in the membranes of invading microbes thereby destroying them. This study examined the gene coding region for defensin in two important tick disease vectors, Dermacentor variabilis and Ixodes scapularis. PCR amplification of the genes from tick chromosomal DNA resulted in the amplification of a 225 base pair amplicon. Sequencing of …

Fisheries Research Report No. 148 - Historical Distribution And Abundance Of The Australian Sea Lion (Neophoca Cinerea) On The West Coast Of Western Australia, Richard Campbell

Fisheries Research Reports

Analysis of historical patterns of abundance of the Australian sea lion on the west coast of Western Australia suggests that the population size was greater prior to the impacts of colonization and commercial sealing/whaling between the 18th and 20th centuries. In addition, it is evident that there has been a reduction in the number of breeding sites along the west coast, particularly around the greater Perth metropolitan area. There is limited evidence of the impact of indigenous hunting on the abundance and distribution of this species. The major impacts on Australian sea lion populations were a combination of subsistence and …

2004-05 Christmas Bird Counts In Nebraska

Nebraska Bird Review

The addition of a new count encompassing Ponca State Park brings our total reported Nebraska counts to twelve this year. A total of 199 field counters and 20 feeder watchers participated. Temperatures were average, DeSoto being the cold spot, and precipitation was minimal.

This was the first year Cackling Geese were reported, following the recent split of Canada and Cackling Geese; a total of 70 were counted in 6 circles. American Wigeon numbers have been rising steadily on Nebraska CBCs, and the trend continued this year with 819 counted, a 25-year high. Three White-winged Scoters were found at Lake Mcconaughy, …

The 2003-2004 Nebraska Nest Report, Wayne J. Mollhoff

Nebraska Bird Review

Due to the fact that I was recalled to active duty by the US Army, I have been out of the state for the past two years. Hence, the number of observations made will be much abbreviated, and the usual comments on climatic conditions will be more limited.

A brief visit to the western Panhandle in June 2003 revealed that at least the southwestern Panhandle received enough rain to grow a crop of wheat, and there was more grass on the hills than in the previous several years. Despite this, some other parts of the state, especially the western Republican …

Nebraska Ornithologists’ Union Treasurer’S Report 2004

Nebraska Bird Review

One-page spreadsheet constituting the Nebraska Ornithologists' Union treasurer's report at year end (December 31) of 2004. The grand total is $51,716.19.

New Westward Breeding Records For Eastern Towhees In Central Nebraska, William C. Scharf

Nebraska Bird Review

The current breeding range of Eastern Towhees (Pipilo erythrophthalmus) in Nebraska is described as westward to a line from Cedar Co through Platte, Hall, and Harlan Cos (NBR 64: 124, Sharpe et al. 2001). Frequent recent sightings of Eastern Towhees during the breeding season have been made from more westward locations. A few reports are from Lincoln Co., 5 June 2004 by TJ Walker (NBR 72: 91), and Dawson Co., 13 May 2004 by Laurel Badura (NBR 72: 55). In contrast to the capture data presented here, none of the sightings is corroborated with breeding …

Subscription And Organization Information [March 2005]

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 Mary Lou Pritchard, NOU Librarian, c/o University of Nebraska State Museum, W-436 Nebraska Hall, Lincoln, NE 68588-0514.

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

In Memory Of Dr. Rushton G. Cortelyou

Nebraska Bird Review

The Nebraska Ornithologists' Union lost a longtime member and friend on May 2, 2004, when Dr. Rushton Cortelyou passed away just 16 days shy of his 98th birthday. He had been a member of the NOU for more than 50 years. He was preceded in death by Margaret, his wife of 68 years. Survivors include daughters Helen Linger and Carol Cortelyou, five grandchildren, and five great-grandchildren. Rusty’s membership in the NOU dates from 1953, and he contributed much to the organization. He served as president in 1962-64 and as editor of The Nebraska Bird Review from 1965 to 1990. As …

Habitat Associations Of Nebraska Birds, Paul A. Johnsgard, John Dinan

Nebraska Bird Review

In the fall of 2003 we set out to assign habitat associations to 363 species of birds that regularly occur in Nebraska for the purpose of evaluating the relative importance of each of Nebraska's major habitats to the state's breeding, migrating, and wintering birds. It is our hope that this information will (1) provide the first thorough investigation of Nebraska's birds and the habitats they use, and (2) provide a method for prioritizing the conservation of Nebraska's varied habitats for birds.

Nebraska Bird Review (March 2005) 73(1), Whole Issue

Nebraska Bird Review

Nebraska Ornithologists’ Union Treasurer's Report 2004 ... 2

Winter Field Report, December 2004 to February 2005 ... 3

The 2003-2004 Nebraska Nest Report ... 15

Habitat Associations of Nebraska Birds ... 20

New Westward Breeding Records for Eastern Towhees in Central Nebraska ... 26

In Memory of Dr. Rushton G. Cortelyou ... 29

2004-05 Christmas Bird Counts in Nebraska ... 30

Subscription and Organization Information ... 43

Winter Field Report, December 2004 To February 2005, W. Ross Silcock

Nebraska Bird Review

This winter was generally unremarkable except for the occurrence of good numbers of several species at the western edge of the state, notably Clark's Nutcracker, Pygmy Nuthatch, and Bohemian Waxwing. There were a couple of sightings of Mountain Chickadee and one of Cassin's Finch for good measure. All of the winter finches on the Nebraska list (except for Hoary Redpoll) appeared, most notably Pine Grosbeak, represented by two birds. One of these was in the southwest (Kansas had several reports) but the other was in the east, suggesting either multiple points of origin, or, as suggested by some in Kansas, …

A Monkey’S Tale: The Origin Of Plasmodium Vivax As A Human Malaria Parasite, Ananias A. Escalante, Omar E. Cornejo, Denise E. Freeland, Amanda C. Poe, Ester Durrego, William E. Collins, Altaf A. Lal

Harold W. Manter Laboratory of Parasitology: Library Materials

The high prevalence of Duffy negativity (lack of the Duffy blood group antigen) among human populations in sub-Saharan Africa has been used to argue that Plasmodium vivax originated on that continent. Here, we investigate the phylogenetic relationships among 10 species of Plasmodium that infect primates by using three genes, two nuclear (β-tubulin and cell division cycle 2) and a gene from the plastid genome (the elongation factor Tu). We find compelling evidence that P. vivax is derived from a species that inhabited macaques in Southeast Asia. Specifically, those phylogenies that include P. vivax as an ancient lineage from …

Nebraska's Endangered Species, Part 6: Threatened And Endangered Mammals, Patricia W. Freeman

University of Nebraska State Museum: Mammalogy Papers

Species discussed include:
black-footed ferrets (Mustela nigripes)
Black-tailed prairie dog
Southern flying squirrels (Glaucomys volans)
Eastern plains pocket mouse
Eastern plains harvest mouse
Long-legged myotis (Myotis volans)
Fringed myotis (Myotis thysanodes pahasapesis)
Townsend's big-eared bats (Corynorhinus townsendi)
swift fox (Vulpes velox)
nine-banded armadillo (Dasypus novemcinctus)
Black-tailed (Lepus californicus) and white-tailed jackrabbits (Lepus townsendi)
long-tailed weasels (Mustela frenata)
Richardson's ground squirrel (Spermophilus elegans)
northern pocket gopher (Thomomys talpoides chyennensis)
silky pocket mouse (Perognathus flavus)
bushy-tailed woodrat (Neotoma cinerea)
mountain lion (Puma concolor)
Merriam's shrew (Sorex merriami)
hispid cotton rat (Sigmodon hispidus)
Osage woodrat (Neotoma floridana osagensis)
spotted skunk (Spilogale putorius)
olive-backed …

Predicting Numbers Of Hauled-Out Harbour Seals: A Mathematical Model, James L. Hayward, Shandelle M. Henson, Clara J. Logan, Catherine R. Parris, Matthew W. Meyer, Brian Dennis

Faculty Publications

1. It was once assumed that commercially important fish make up significant portions of seal diets. As a consequence, prior to the 1970s many seal populations were dramatically reduced by rampant slaughtering. Today, seals and other marine mammals are valued components of marine ecosystems and their numbers are carefully managed. To facilitate management, government statutes mandate the systematic monitoring of seal populations. Population estimates are based on counts of hauled-out seals obtained by aerial survey and radio and satellite telemetry; hence, considerable effort has been devoted to finding optimal times for such counts. We have developed a predictive mathematical model …

Ponazuril Inhibits The Development Of Eimeria Vermiformis In Experimentally Infected Outbred Swiss Mice, S. A. Billeter, J. A. Spencer, Bill Chobotar, B. L. Blagburn

Faculty Publications

We evaluated a 15% paste formulation of ponazuril in outbred Swiss mice that were experimentally infected with Eimeria vermiformis. Thirty, 8-week-old female mice (approximately 20 g) were placed in one group of 10 mice and one group of 20 mice. Mice in both groups were gavaged with approximately 5,000 sporulated oocysts of E. vermiformis on day 0. Mice in group 2 (n=10) were treated orally on days 3 and 4 with ponazuril (suspended in 30% propylene glycol) at the rate of 20 mg/kg. Mice in group 1 (n=20) were gavaged with a similar volume of 30% propylene glycol. Rates of …

Bearing The Costs Of Human-Wildlife Conflict: The Challenges Of Compensation Schemes, Philip J. Nyhus, Steve A. Osofsky, Paul Ferraro, H Fischer, Francine Madden

Faculty Scholarship

No abstract provided.

Fishes Of The Pine Bluff Arsenal, Jefferson County, Arkansas, Henry W. Robison

Journal of the Arkansas Academy of Science

A survey of the fishes of the Pine Bluff Arsenal (PBA) located in Jefferson County, Arkansas was initiated in February 1999 and continued until October 1999 with several supplemental collections made in 2000. A total of 3,396 fishes was taken in 81 collections on the PBA and revealed 59 species distributed in 17 families and 36 genera. The most abundant fishes collected were Dorosoma petenense, Gambusia affinis, Labidesthes sicculus, Notemigonus crysoleucas, and Lepomis marginatus.

Pesticide Residues In Guano Of Gray Bats (Myotis Grisecens) In Arkansas, D. Blake Sasse

Journal of the Arkansas Academy of Science

No abstract provided.

The Essentials On Estuarine Fish Habitat, Its Evaluation And Protection By Federal Fisheries Law, Eric T. Schultz, Michael Ludwig

EEB Articles

No abstract provided.

Zur Nahrungsökologie Des Uhus Bubo Bubo In Der Mongolei = Feeding Ecology Of The Eagle Owl Bubo Bubo In Mongolia, Thomas Hoffmann, Michael Stubbe, D. Heidecke, R. Piechocki, R. Samjaa, J. Erfurt, D. Sumjaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

This paper presents further results on the food ecology of the eagle owl in western Mongolia for the years 1984 to 1992. Additional to the already known sites we investigated two new resting places. At least 27 mammal and 17 bird species were recorded. The results confirm previous studies. Small to medium sized mammals (Cricetidae, Dipodidae, Arvicolidae) dominate the prey of the eagle owl whereas birds and invertebrates are less important.

Ecology Of Soil Microarthropods In Gobi Gurvan Saykhan Mountains, Southern Mongolia, Tsedev Bolortuya, Badamdorj Bayartogtokh

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In the present paper, we describe the community structure, species diversity, population density, and the character of distribution of soil microarthropods of the Gobi Gurvan Saykhan mountains. In total 45 species of soil microarthropods belonging to 37 genera and 24 families were identified. Twenty-seven species of soil microarthropods belonging to 25 genera and 20 families were found in the Züün Saykhan, 31 species belonging to 27 genera and 19 families in the Dund Saykhan. Oribatid mites are the dominant group (35 species = 77.8% of total species richness), while mesostigmatid mites account for 7 species (15.6 %). Other groups are …