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University of Nebraska - Lincoln

2003

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Articles 1 - 22 of 22

Full-Text Articles in Terrestrial and Aquatic Ecology

A Case For Taxonomic Recognition Of The Taxon Enodia Anthedon Borealis A. H. Clark (Satyridae), Alex Grkovich, Harry Pavulaan Nov 2003

A Case For Taxonomic Recognition Of The Taxon Enodia Anthedon Borealis A. H. Clark (Satyridae), Alex Grkovich, Harry Pavulaan

The Taxonomic Report of the International Lepidoptera Survey

Clark (1936) described the taxa anthedon and borealis both as new subspecies of Enodia portlandia (Fabricius, 1781). Clark described borealis as the northernmost phenotypically different taxon in this group. Anthedon later became recognized as a distinct species with borealis as a subspecies of it. Masters (1971) characterized E. anthedon borealis as displaying several subtle phenotypic differences from nominotypical anthedon and also noted significant differences in behavior and habitat and reinforced the continued recognition of borealis as a valid subspecies. However, a number of publications after 1971 generally failed to recognize subspecific status for borealis, either ignoring borealis entirely …


A Taxonomic Review Of Chlosyne Ismeria With Description Of A New Subspecies From The Southern Appalachian Mountains, Ronald R. Gatrelle Nov 2003

A Taxonomic Review Of Chlosyne Ismeria With Description Of A New Subspecies From The Southern Appalachian Mountains, Ronald R. Gatrelle

The Taxonomic Report of the International Lepidoptera Survey

The taxon Boisduval and Le Conte described in 1833 as Melitaea ismeria is examined as a historical entity and confirmed as a sister subspecies of the taxon Chlosyne ismeria nycteis. The ismeria populations in the southern Appalachian mountains (United States) are described as a new subspecies: Chlosyne ismeria obsoleta. In facies, this new subspecies is most similar to the western subspecies Chlosyne ismeria drusius in that it is dark and contrasting in its dorsal markings. It is known to range from the mountain region of extreme northern Georgia north in the Appalachians to near southwestern Virginia, United States. …


University Of Nebraska-Lincoln School Of Natural Resources Review: Final Report, December 2003, Michael O'Neill, Phaedra Budy, Stephen Degloria, Ed Kanemasu, Jamie Robertson, Derrel Martin, Anne K. Vidaver, Tylr Naprstek, Donna Woudenberg Nov 2003

University Of Nebraska-Lincoln School Of Natural Resources Review: Final Report, December 2003, Michael O'Neill, Phaedra Budy, Stephen Degloria, Ed Kanemasu, Jamie Robertson, Derrel Martin, Anne K. Vidaver, Tylr Naprstek, Donna Woudenberg

School of Natural Resources: Documents and Reviews

In July 2003, the School of Natural Resource Sciences was merged with the Conservation and Survey Division and the Water Center Nebraska State Survey. This merger produced the School of Natural Resources (hereafter referred to as the "School") in its current form. The University of Nebraska-Lincoln requested a ten-year review of the School's programs and activities. The review was administered by the Cooperative State Research, Education and Extension Service (CSREES) in cooperation with the University of Nebraska-Lincoln's Institute of Agriculture and Natural Resources, the College of Agriculture, and the School.

The review document is divided into nine sections. The first …


Effects Of Management Practices On Grassland Birds: Greater Prairie-Chicken, W. D. Svedarsky, J. E. Toepfer, R. L. Westemeier, R. J. Robel Sep 2003

Effects Of Management Practices On Grassland Birds: Greater Prairie-Chicken, W. D. Svedarsky, J. E. Toepfer, R. L. Westemeier, R. J. Robel

Effects of Management Practices on Grassland Birds

Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 5,500 published and unpublished papers. A range map is provided to indicate the breeding distribution of Greater Prairie-Chicken in the United States and southern Canada. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which provides the fundamental …


Csrees School Of Natural Resources Comprehensive Five-Year Review Sep 2003

Csrees School Of Natural Resources Comprehensive Five-Year Review

School of Natural Resources: Documents and Reviews

No abstract provided.


A Subspecific Assessment Of The Genus Hesperia (Hesperiinae) In Eastern North America (Part I: The South): New Subspecies Of Hesperia Metea, Hesperia Sassacus And Hesperia Meskei, Ronald R. Gatrelle, Marc C. Minno, Alex Grkovish Jul 2003

A Subspecific Assessment Of The Genus Hesperia (Hesperiinae) In Eastern North America (Part I: The South): New Subspecies Of Hesperia Metea, Hesperia Sassacus And Hesperia Meskei, Ronald R. Gatrelle, Marc C. Minno, Alex Grkovish

The Taxonomic Report of the International Lepidoptera Survey

Hesperia meskei pinocayo Gatrelle and Minno is described from Big Pine Key, Monroe County, Florida, United States. This subspecies is thought to be nearly extinct. Its mainland status is uncertain. It is characterized by bi-colored ventral hindwings with more prominent ventral hindwing spots. Hesperia metea intermedia Gatrelle is described from Pickens County, South Carolina, United States. Its range is from northwestern South Carolina, United States west through Mississippi, United States and probably into Missouri, United States. Males have the least dorsal fulvous of the metea subspecies; ventrally they are well marked. Females are similar to subspecies licinus. Hesperia sassacus …


Agroecosystems Analysis From The Grass Roots: A Multidimensional Experiential Learning Course, Mary Wiedenhoeft, Steve Simmons, Ricardo Salvador, Gina Mcandrews, Charles A. Francis, James W. King, David Hole Apr 2003

Agroecosystems Analysis From The Grass Roots: A Multidimensional Experiential Learning Course, Mary Wiedenhoeft, Steve Simmons, Ricardo Salvador, Gina Mcandrews, Charles A. Francis, James W. King, David Hole

Department of Agricultural Leadership, Education, and Communication: Faculty Publications

An intensive, experiential travel course in Agroecosystems Analysis was conducted in Iowa, Minnesota, and Nebraska (United States) during summers of 1998 and 1999. The intended student audience was advanced undergraduate and beginning graduate students. Pretravel readings and a week-long series of farm visits, which consisted of in-depth interviews with the farmers and their families, prepared student teams to analyze and evaluate the production, economic, environmental, and social sustainability of 10 farms. Students shared their analyses both orally and in written reports. Based on a multifaceted student evaluation process, we found that participants were highly motivated, strongly engaged with the course …


Butterflies Of The North Okanagan, British Columbia, Canada, David L. Threatful Apr 2003

Butterflies Of The North Okanagan, British Columbia, Canada, David L. Threatful

The Taxonomic Report of the International Lepidoptera Survey

An annotated list of 106 species of butterflies known to occur in the north Okanagan area of British Columbia, Canada is presented. Information is provided on flight phenology, elevation and habitat for each species. Field work over the past 100 years shows that this is one of the premiere areas in Canada for butterfly species diversity. More than one third of all known Canadian butterflies have been found in this small area.


Fixation Of Type Locality For Lycaena Acmon Westwood And Characterization Of The Species And Its Distribution, Paul A. Opler Mar 2003

Fixation Of Type Locality For Lycaena Acmon Westwood And Characterization Of The Species And Its Distribution, Paul A. Opler

The Taxonomic Report of the International Lepidoptera Survey

Lycaena acmon Westwood, 1852 is based on a painting and plate legend in Westwood and Hewitson’s Genera of Diurnal Lepidoptera. The specimen illustrated was located in the British Museum Natural History and is the holotype by monotypy. The accompanying plate legend gives “California” as the type locality. Because the butterfly is a member of a complex of species, now considered in the genus Plebejus (Opler and Warren, 2003), that requires much systematic study, and some confusion exists on the identity of L. acmon, it is necessary to fix a more specific type locality, to characterize the species, …


Ecology Of The Missouri River: Missouri River Creel Survey, Bellevue Bridge To Camp Creek, 30 March Through 11 October 2002. Supplement I, Gerald Mestl Mar 2003

Ecology Of The Missouri River: Missouri River Creel Survey, Bellevue Bridge To Camp Creek, 30 March Through 11 October 2002. Supplement I, Gerald Mestl

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

This report describes Missouri River activities and results related to a channelized Missouri River creel survey conducted from 30 March through 11 October 2002. This is the third of a planned annual creel survey to be conducted on alternating sections of the channelized Missouri River to measure changes in recreational fishing activity, especially those changes due to large scale habitat restoration efforts. Future reports will contain additional analyses of these data. Anglers spent over 42,000 hours fishing the Missouri River from Bellevue (rkm 967.7) to Camp Creek (rkm 883.5) during the survey period. Effort was steady from late spring (4/27 …


Wolf Interactions With Non-Prey, Warren B. Ballard, Ludwig N. Carbyn, Douglas W. Smith Jan 2003

Wolf Interactions With Non-Prey, Warren B. Ballard, Ludwig N. Carbyn, Douglas W. Smith

USGS Northern Prairie Wildlife Research Center

WOLVES SHARE THEIR ENVIRONMENT with many animals besides those that they prey on, and the nature of the interactions between wolves and these other creatures varies considerably. Some of these sympatric animals are fellow canids such as foxes, coyotes, and jackals. Others are large carnivores such as bears and cougars. In addition, ravens, eagles, wolverines, and a host of other birds and mammals interact with wolves, if only by feeding on the remains of their kills.


Wolves: Behavior, Ecology, And Conservation: Photo Section Ii, Douglas W. Smith, L. David Mech, Isaac Babcock, Melissa Mccaw Jan 2003

Wolves: Behavior, Ecology, And Conservation: Photo Section Ii, Douglas W. Smith, L. David Mech, Isaac Babcock, Melissa Mccaw

USGS Northern Prairie Wildlife Research Center

Adult wolves are very attentive to the pups. Both parents feed and care for them. Any older siblings similarly participate in pup care and feeding. Kin selection is probably the best explanation for the latter behavior. Top: Photograph by Isaac Babcock. Bottom: Photograph by L. David Mech.


Wolf-Prey Relations, L. David Mech, Rolf O. Peterson Jan 2003

Wolf-Prey Relations, L. David Mech, Rolf O. Peterson

USGS Northern Prairie Wildlife Research Center

AS 1 (L. o. MECH) watched from a small ski plane while fifteen wolves surrounded a moose on snowy Isle Royale, I had no idea this encounter would typify observations I would make during 40 more years of studying wolf-prey interactions.

My usual routine while observing wolves hunting was to have my pilot keep circling broadly over the scene so I could watch the wolves' attacks without disturbing any of the animals. Only this time there was no attack. The moose held the wolves at bay for about 5 minutes (fig. p), and then the pack left.

From this observation …


Introduction, L. David Mech, Luigi Boitani Jan 2003

Introduction, L. David Mech, Luigi Boitani

USGS Northern Prairie Wildlife Research Center

THE WOLF IS TRULY a special animal. As the most widely distributed of all land mammals, the wolf, formally the gray wolf (Canis lupus), is also one of the most adaptable. It inhabits all the vegetation types of the Northern Hemisphere and preys on all the large mammals living there. It also feeds on all the other animals in its environment, scavenges, and can even eat fruits and berries. Wolves frequent forests and prairies, tundra, barren ground, mountains, deserts, and swamps. Some wolves even visit large cities, and, of course, the wolf's domesticated version, the dog, thrives in …


Wolf Social Ecology, L. David Mech, Luigi Boitani Jan 2003

Wolf Social Ecology, L. David Mech, Luigi Boitani

USGS Northern Prairie Wildlife Research Center

THE FIRST REAL BEGINNING to our understanding of wolf social ecology came from wolf 2204 on 23 May 1972. State depredation control trapper Lawrence Waino, of Duluth, Minnesota, had caught this female wolf 112 km ( 67 mi) south of where L. D. Mech had radio-collared her in the Superior National Forest 2 years earlier. A young lone wolf, nomadic over 100 km2 (40 mi2) during the 9 months Mech had been able to keep track of her, she had then disappeared until Waino caught her. From her nipples it was apparent that she had just been …


Wolves And Humans, Steven H. Fritts, Robert O. Stephenson, Robert D. Hayes, Luigi Boitani Jan 2003

Wolves And Humans, Steven H. Fritts, Robert O. Stephenson, Robert D. Hayes, Luigi Boitani

USGS Northern Prairie Wildlife Research Center

TRY TO IMAGINE a small group of wolves sitting at a table engaged in vigorous debate. These wolves are from various parts of the globe and are perhaps a bit more scholarly than most. In fact, they are especially knowledgeable about the biology of that notorious two-legged species, Homo sapiens. They have been brought together to document their relationship with humans over the last several millennia. Pause for a few moments and consider what they might say ...

Perhaps the wolves' discussion would chronicle the evils of the human species, including details of atrocities committed against lupine ancestors down …


Restoration Of The Red Wolf, Michael K. Phillips, V. Gary Henry, Brian T. Kelly Jan 2003

Restoration Of The Red Wolf, Michael K. Phillips, V. Gary Henry, Brian T. Kelly

USGS Northern Prairie Wildlife Research Center

"WOLFERS" IN NORTHEASTERN North Carolina were busy on February 5, 1768. Records from the Tyrrell County courthouse read:

Giles Long and Thomas Wilkinson awarded one pound for a certified wolf scalp; Jeremiah Norman awarded two pounds for certified wolf and wild-cat scalps; Davenport Smithwick awarded one pound for a certified wolf-scalp.

Such was the nature of the war on the wolf: people killed them for money. The belief of the time held that the war was necessary because it was humankind's manifest destiny to tame the wilderness. And for the wilderness to be tame, the wolf had to be exterminated. …


References, L. David Mech, Luigi Boitani Jan 2003

References, L. David Mech, Luigi Boitani

USGS Northern Prairie Wildlife Research Center

Abrams, P. A. 2000. The evolution of predator-prey interactions. Annu. Rev. Ecol. Syst. 31:79-105.

Abuladze, K. I. 1964. Osnovy Tsestodologii. Vol. IV. Teniatylentochnye gel' minty zhivotnykh i cheloveka i vyzyvaevaniia. Nauka, Moscow. 530 pp.

Achuff, P. L., and R. Petocz. 1988. Preliminary resource inventory of the Arjin Mountains Nature Reserve, Xinjiang, People's Republic of China. World Wide Fund for Nature, Gland, Switzerland. 78 pp.

Ackerman, B. B., F. A. Leban, M. D. Samuel, and E. 0. Garton. 1990. User's manual for program Home Range. 2d ed. Technical Report no. 15. Forestry, Wildlife, and Range Experiment Station, University ofldaho, Moscow.

Acorn, …


Wolf Population Dynamics, Todd K. Fuller, L. David Mech, Jean Fitts Cochrane Jan 2003

Wolf Population Dynamics, Todd K. Fuller, L. David Mech, Jean Fitts Cochrane

USGS Northern Prairie Wildlife Research Center

A LARGE, DARK WOLF poked his nose out of the pines in Yellowstone National Park as he thrust a broad foot deep into the snow and plowed ahead. Soon a second animal appeared, then another, and a fourth. A few minutes later, a pack of thirteen lanky wolves had filed out of the pines and onto the open hillside.

Wolf packs are the main social units of a wolf population. As numbers of wolves in packs change, so too, then, does the wolf population (Rausch 1967). Trying to understand the factors and mechanisms that affect these changes is what the …


Wolves: Behavior, Ecology, And Conservation: Photo Section I, Douglas W. Smith, Rolf Peterson, L. David Mech, Barron Crawford Jan 2003

Wolves: Behavior, Ecology, And Conservation: Photo Section I, Douglas W. Smith, Rolf Peterson, L. David Mech, Barron Crawford

USGS Northern Prairie Wildlife Research Center

Wolves in Yellowstone National Park's restored population often must compete with grizzly bears at the carcasses of their kills. Especially after their first feeding at a kill, wolves tend to relinquish their kills to bears. Photograph by Doug Smith.

Elk are one of the most common prey of wolves in the northern Rocky Mountains of North America, primarily because in most areas they tend to outnumber other prey. This large bull standing his ground escaped this pack. Photograph by Doug Smith.


Conclusion, L. David Mech, Luigi Boitani Jan 2003

Conclusion, L. David Mech, Luigi Boitani

USGS Northern Prairie Wildlife Research Center

WOLVES CAN LIVE almost anywhere in the Northern Hemisphere, and almost everywhere they do, they are an issue. In the vast emptiness of the northern tundra or the Arabian desert, on the outskirts of a European town or in the safety of an American national park, in meager agricultural lands in India or mountains in rich Norway or Switzerland, wolves always attract people's attention. Wolves form a key part of many ecosystems, and they are considered charismatic creatures by most human cultures. Thus they polarize public opinion and make headlines year after year.

If we look back 6o years to …


Incidence Of Mink, Mustela Vison, And River Otter, Lutra Canadensis, In A Highly Urbanized Area, L. David Mech Jan 2003

Incidence Of Mink, Mustela Vison, And River Otter, Lutra Canadensis, In A Highly Urbanized Area, L. David Mech

USGS Northern Prairie Wildlife Research Center

Mink (Mustela vison) frequently inhabited or traversed a residential. business. and industrial part of the Twin Cities. Minnesota, with little water or natural vegetation. At least one River Otter (Lutra canadensis) also resided on a small pond on a golf course in the area for several winter months.