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Articles 3391 - 3420 of 3484
Full-Text Articles in Ecology and Evolutionary Biology
Bats Of Guadeloupe, Robert J. Baker, Hugh H. Genoways, John C. Patton
Bats Of Guadeloupe, Robert J. Baker, Hugh H. Genoways, John C. Patton
University of Nebraska State Museum: Mammalogy Papers
The bat fauna of the Lesser Antillean chain is of considerable interest because it is composed of a depauperate extension of the South American fauna, species that have a widespread distribution in the Antilles, and a few species that are endemic to the Lesser Antilles (Baker and Genoways, 1978). Relative to bat speciation and diversity, Guadeloupe is probably the most important island of the Antillean chain.
This report is concerned with the natural history and systematics of the 11 chiropteran species known from Guadeloupe, three of which are endemic. Comments concerning systematic relationships are based on specimens that we collected …
Bats From Southern Haiti, David Klingener, Hugh H. Genoways, Robert J. Baker
Bats From Southern Haiti, David Klingener, Hugh H. Genoways, Robert J. Baker
University of Nebraska State Museum: Mammalogy Papers
A collection of 450 specimens of bats from the Departement du Sud, Haiti, is described. Fifteen of the 17 species previously recorded from Hispaniola are represented, and Noctilio leporinus is reported from Haiti for the first time. Reproductive information for the months of January, May, June, August, and December is presented. Macrotus waterhousii is seasonally monoestrous, as on the mainland. The two species of stenodennines, Artibeus jamaicensis and Phyllops hailiensis, do not show bimodal seasonal polyestry as do stenodermines in Central America. Monophyllus redmani and the phyllonycterines may be seasonally monoestrous. Differences in reproductive biology between Haitian bats and …
The Prairie Naturalist Vol. 10. No. 1 March. 1978
The Prairie Naturalist Vol. 10. No. 1 March. 1978
The Prairie Naturalist
KEY TO THE SKULLS OF NORTH DAKOTA MAMMALS ▪ J. M. Wiebe
RESPONSES OF PRAIRIE GROUSE TO AVIAN AND MAMMALIAN VISITORS ON DISPLAY GROUNDS IN NORTHWESTERN MINNESOTA ▪ D. W. Sparling, Jr. and W. D. Svedarsky
FIRST NESTING RECORD OF THE CASPIAN TERN IN NORTH DAKOTA ▪ J. F. Herman, R. A. Schmidt and K. J. Wilson
MARSH HAWK PREDATION ON BLACK TERN AND PECTORAL SANDPIPER ▪ G. D. Maxson
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1977 ▪ R. N. Randall
BOOK REVIEW
Audubon Society "Field Guides" ▪ D. L. Kubischta
Ten-Year Index To The Prairie Naturalist Vols. 1-10 (1968-1978), Virginia Steinhaus
Ten-Year Index To The Prairie Naturalist Vols. 1-10 (1968-1978), Virginia Steinhaus
The Prairie Naturalist
11 pages
From: ACANTHOMYOPS CLAVIGER,
to: Zink, R.M.,
Relating Wolf Scat Content To Prey Consumed, Theodore J. Floyd, L. David Mech, Peter A. Jordan
Relating Wolf Scat Content To Prey Consumed, Theodore J. Floyd, L. David Mech, Peter A. Jordan
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
In 9 trials, captive wolves (Canis lupus) were fed prey varying in size from snowshoe (Lepus americanus) to adult deer (Odocoileus virginianus), and the resulting scats were counted. collectible scats were distinguished from liquid, noncollectible stools. In collectible scats, the small prey occurred in greater proportion relative to the prey's weight, and in lesser proportion to the prey's numbers, than did the remains of larger prey. A regression equation with an excellent the data (r2 = 0.97) was derived to estimate the weight of prey eaten per collectible scat for With this information …
Zoogeography Of Antillean Bats, Robert J. Baker, Hugh H. Genoways
Zoogeography Of Antillean Bats, Robert J. Baker, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Analysis of the bat fauna of the Antillean Islands suggest that the most probable source of invasion of the islands by bats is by overwater dispersal. The bat fauna of ·the Greater Antilles is unique, a percentage of endemism on each island being over 50 percent except for the Virgin Islands which has 33 percent endemics.
The richest bat fauna in the Antilles is on Cuba (32 species) followed by Jamaica (23 species) then Hispaniola (17 species) and Puerto Rico (16 species). The number of species found on Cuba is probably the result of the island's proximity to Central and …
Productivity, Mortality, And Population Trends Of Wolves In Northeastern Minnesota, L. David Mech
Productivity, Mortality, And Population Trends Of Wolves In Northeastern Minnesota, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Population parameters, mortality causes, and mechanisms of a population decline were studied in wolves (Canis lupus lycaon) from 1968 to 1976 in the Superior National Forest. The main method was aerial radio-tracking of 129 wolves and their packmates. Due to a decline in white-tailed deer (Odocoileus virginianus), the wolf population decreased during most of the study. Average annual productivity varied from 1.5 to 3.3 pups per litter, and annual mortality rates from 7 to 65 percent. Malnutrition and intraspecific strife accounted equally for 58 percent of the mortality; human causes accounted for the remainder. As wolf …
Wolf-Pack Buffer Zones As Prey Reservoirs, L. David Mech
Wolf-Pack Buffer Zones As Prey Reservoirs, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Abstract. In a declining herd, surviving deer inhabited overlapping edges of wolf- pack territories. There, wolves hunted little until desperate, in order to avoid fatal encounters with neighbors. Such encounters reduce wolf numbers and predation pressure and apparently allow surviving deer along territory edges to repopulate the area through dispersal of their prime, less vulnerable offspring into territory cores.
Comparison Of Coyote And Coyote × Dog Hybrid Food Habits In Southeastern Nebraska, Brian R. Mahan
Comparison Of Coyote And Coyote × Dog Hybrid Food Habits In Southeastern Nebraska, Brian R. Mahan
University of Nebraska State Museum: Mammalogy Papers
The recent taxonomic study by Mahan et al. (1978) documented the occurrence of coyote (Canis latrans) x dog (c. familiaris) hybrids in Nebraska. This study, and those by Freeman (1976) in Oklahoma and Gipson et al. (1974) in Arkansas show coyote x dog hybrids, though not abundant, to be numerous in some areas. The purpose of the present study was to compare the stomach contents of coyote x dog hybrids collected by Mahan et al. (1978) from southeastern Nebraska with those of contemporary coyotes.
Stomachs of 12 coyote x dog hybrids and 16 coyotes collected November 1975 …
The Prairie Naturalist Vol. 9, Nos. 3 And 4. September-December, 1977
The Prairie Naturalist Vol. 9, Nos. 3 And 4. September-December, 1977
The Prairie Naturalist
UPLAND NESTING OF AMERICAN BITTERNS, MARSH HAWKS, AND SHORT-EARED OWLS ▪ H. F. Duebbert and J. T. Lokemoen
ROADSIDE NESTING BY PRAIRIE GROUSE IN NORTHWEST MINNESOTA ▪ W. D. Svedarsky
BOHEMIAN WAXWING POPULATIONS AND WINTER ECOLOGY IN NORTH DAKOTA ▪ E. L. Bakke
AGEING ARCHAEOLOGICAL BISON BY DENTAL ANNULI ▪ J. C. Pigage and M. G. McKenna
COMPARISON OF COYOTE AND COYOTE X DOG HYBRID FOOD HABITS IN SOUTHEASTERN NEBRASKA ▪ B.R. Mahan
NOTES
Abnormal Mid-May Occurrence of White-fronted Geese in Sheridan County, North Dakota ▪ D.P. Kibbe and J. A. Roppe
Common Grackle Preys on Spotted Sandpiper Chick ▪ …
The Prairie Naturalist Volume 9, No. 2. June 1977
The Prairie Naturalist Volume 9, No. 2. June 1977
The Prairie Naturalist
PROPAGULE DISPERSAL AMONG FOREST ISLANDS IN SOUTHEASTERN SOUTH DAKOTA ▪ J. W. Ranney and W. C. Johnson
GENERAL WEATHER CONSIDERATIONS FOR THE PRESCRIDED BURNING OF PRAIRIE IN NORTHWEST MINNESOTA ▪ W. D. Svedarsky and R. W. Sands
YELLOW-CROWNED NIGHT HERONS SIGHTED IN NORTH DAKOTA ▪ D. G. Jorde, G. L. Krapu, and R. K. Green
The Prairie Naturalist Volume 9, No. 1. March 1977
The Prairie Naturalist Volume 9, No. 1. March 1977
The Prairie Naturalist
NESTING BY FERRUGINOUS HAWKS AND OTHER RAPTORS ON HIGH VOLTAGE POWERLINE TOWERS ▪ D. S. Gilmer and J. M. Wiebe
ARTHROPODS CONSUMED BY AN IMMATURE MARBLED GODWIT ▪ R. M. Timm and R. M. Zink
NOTES
Black-headed Grosbeak in Jamestown, North Dakota ▪ R. Lender
Summer Record of Red-breasted Nuthatch in North Dakota ▪ R. Lender
BOOK REVIEWS
Minnesota's Wild Flowers ▪ Staff
In Search of Eagles ▪ J. Lokemoen
Forest and Range Research ▪ Staff
An Economic Analysis of Recycling ▪ Staff
Aspects Of The Ecology Of Fish And Commercial Crustaceans Of The Blackwood River Estuary, Western Australia, R.C. J. Lenanton
Aspects Of The Ecology Of Fish And Commercial Crustaceans Of The Blackwood River Estuary, Western Australia, R.C. J. Lenanton
Fisheries Research Bulletins
Beach seine nets, set or mesh nets, otter trawls and plankton nets were used to sample fish and commercial crustaceans every two months over the period March 1974 to March 1975, and again in July 1975 at a number of stations throughout the Blackwood River estuary, Western Australia.
The Prairie Naturalist Vol. 8, Nos. 3 And 4 September-December 1976
The Prairie Naturalist Vol. 8, Nos. 3 And 4 September-December 1976
The Prairie Naturalist
SPRING MORTALITY OF INSECTIVOROUS BIRDS IN SOUTHERN MANITOBA ▪ J. R. Serie and R. E. Jones
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1976 ▪ R. N. Randall
MOSSES OF THE GREAT PLAINS: INTRODUCTION AND CATALOGUE ▪ S. P. Churchill
NOTES
Fulvous Tree Duck in North Dakota ▪ L. A. Jones
Unusual Mortality of a Saw-whet Owl ▪ H. A. Kantrud
Cardinal and Mockingbird in Jamestown, North Dakota ▪ D. H. and J. E. Johnson
BOOK REVIEWS
Essence of Wilderness ▪ K. T. Killingbeck
The Changing America ▪ L. M. Kirsch
A Government Bird Book ▪ J. F. Cassel
Wildflowers ofthe Rockies …
The Prairie Naturalist Volume 8, Nos. 1 And 2. March-June 1976
The Prairie Naturalist Volume 8, Nos. 1 And 2. March-June 1976
The Prairie Naturalist
THE POTAMOGETONACEAE IN NORTH DAKOTA ▪ G. E. Larson
NOTES
January Record for Western Grebe at Amenia, North Dakota ▪ J. M. Wiehe and J. F. Cassel
An Observation of Possible Mallard Adoption ▪ R. A. Stromstad
Unusual Mortality in California Gulls ▪ G. R. Lingle
Great Horned Owl Predation of Penned Gray Partridge ▪ J. W. Schulz
BOOK REVIEWS
North Dakota's Own Bird Book ▪ B. and A. Gammell
North Dakota's Wildlife ▪ Staff
A New Bird Book for Minnesota ▪ D. H. Johnson
Two New Waterfowl Books ▪ T. J. Dwyer
Two Canadian Bird References ▪ Staff
Canadian …
A New Species Of Chiroderma From Guadeloupe, West Indies (Chiroptera: Phyllostomidae), Robert J. Baker, Hugh H. Genoways
A New Species Of Chiroderma From Guadeloupe, West Indies (Chiroptera: Phyllostomidae), Robert J. Baker, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
During the course of a study of the bat faunas of the Caribbean islands we obtained a specimen of Chiroderma from the island of Guadeloupe in the Lesser Antilles. The nearest known populations of this genus occur on Tobago and Trinidad (C. villosum and C. trinitatum). approximately 550 kilometers to the south. This specimen represents a distinct new species that appears to be most closely related to C. doriae and C. villosum. This new species is named and described.
The Prairie Naturalist Vol. 7, No.4. December 1975
The Prairie Naturalist Vol. 7, No.4. December 1975
The Prairie Naturalist
COMPARISON OF FLOWERING RECORDS FROM KANSAS AND NORTH DAKOTA ▪ O. A. Stevens
REPAIRED BONE BREAK IN A HOUSE SPARROW ▪ C. L. Cink and T. K. Broschat
A LARGE RACOON LITTER ▪ E. K. Fritzell and J. W. Matthews
CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA –1975 ▪ R. N. Randall
BOOK REVIEW
Autumn Hawk Migrations ▪ P. B. Hofslund
The Prairie Naturalist Vol. 7 , Nos. 2 And 3. June-September, 1975
The Prairie Naturalist Vol. 7 , Nos. 2 And 3. June-September, 1975
The Prairie Naturalist
VASCULAR FLORA OF EMMONS COUNTY, NORTH DAKOTA ▪ R. P Williams and W. T. Barker
NOTES
Unusual Nesting Site of Barn Swallows ▪ W. A. Buresh
Summer Tanager in Burleigh County, North Dakota ▪ W. A. Buresh
Additional Record of Summer Tanager in North Dakota ▪ J. F. Cassel
Snowy Owl in McHenry County, North Dakota, in May ▪ W. A. Buresh
A New Species Of Eptesicus From Guadeloupe, Lesser Antilles (Chiroptera: Vespertilionidae), Hugh H. Genoways, Robert J. Baker
A New Species Of Eptesicus From Guadeloupe, Lesser Antilles (Chiroptera: Vespertilionidae), Hugh H. Genoways, Robert J. Baker
University of Nebraska State Museum: Mammalogy Papers
In the course of field studies on bats of the Antillean region, three specimens of the genus Eptesicus were obtained on the island of Guadeloupe in the Lesser Antilles. The nearest known populations of this genus are on Puerto Rico 500 kilometers to the west (E. fuscus wetmorei), on the northern coast of South America 850 kilometers to the southwest (E. fuscus miradorensis), and on Tobago 550 kilometers to the south (E. brasiliensis melanopterus). Study of the specimens from Guadeloupe reveals that they represent a distinct species that is most closely related to Eptesicus …
A New Subspecies Of Geomys Bursarius (Mammalia: Geomyidae) From Texas And New Mexico, Robert J. Baker, Hugh H. Genoways
A New Subspecies Of Geomys Bursarius (Mammalia: Geomyidae) From Texas And New Mexico, Robert J. Baker, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
As part of a study of the systematics and ecology of pocket gophers occurring on the high plains of Texas and eastern New Mexico, numerous populations of the plains pocket gopher, Geomys bursarius, were examined karyotypically. Four chromosomal races were described from this area by Baker et al. (1973). Additional studies lead us to believe that two of these races represent an undescribed subspecies of the plains pocket gopher. In addition to karyological evidence, specimens of this subspecies are morphologically distinct from those of all contiguous populations of Geomys bursarius major, the race to which they previously were assigned. …
Mammals Of The Guadalupe Mountains National Park, Texas, Hugh H. Genoways, Robert J. Baker, John E. Cornely
Mammals Of The Guadalupe Mountains National Park, Texas, Hugh H. Genoways, Robert J. Baker, John E. Cornely
University of Nebraska State Museum: Mammalogy Papers
Our survey began in late May 1973 and continued through August 1975. The objectives of our study, which was supported by the National Park Service, were to survey the mammals occurring in the Guadalupe Mountains National Park, Texas, and to correlate their distribution with major plant associations. This inventory of the natural resources of the park is preliminary to the development of any serious management program. Therefore, we present the following accounts to serve as baseline data for future mammalian work in the park and development of the master plan for the park.
Editors' Note To Biological Investigations In The Guadalupe Mountains National Park, Texas., Hugh H. Genoways, Robert J. Baker
Editors' Note To Biological Investigations In The Guadalupe Mountains National Park, Texas., Hugh H. Genoways, Robert J. Baker
University of Nebraska State Museum: Mammalogy Papers
The Guadalupe Mountains National Park, which is located in TransPecos Texas between Carlsbad, New Mexico, and EI Paso, Texas, is one of the newest national parks being formed by the Congress in 1967. The Guadalupe Mountains and the associated Chihuahuan Desert included in the park represent a unique biological area in which a fragile biological equilibrium exists between the fauna and flora of the Chihuahuan Desert of the lowlands and the Rocky Mountains of the high elevations. The preservation of this area will depend upon sound management decisions. This volume is the result of a symposium held at The Museum …
The Prairie Naturalist Volume 7, No.1. March 1975
The Prairie Naturalist Volume 7, No.1. March 1975
The Prairie Naturalist
MIGRATION OF BIRDS IN NORTH DAKOTA DURING FAll 1974 ▪ J. T. Lokemoen & D. H. Johnson.
REPRODUCTION AND DEVELOPMENT OF FOUR MALLARD LINES ▪ R. J. Greenwood
Annotated Checklist Of Mammals Of The Yucatán Peninsula, México. Iv. Carnivora, Sirenia, Perissodactyla, Artiodactyla, Hugh H. Genoways, Robert J. Baker
Annotated Checklist Of Mammals Of The Yucatán Peninsula, México. Iv. Carnivora, Sirenia, Perissodactyla, Artiodactyla, Hugh H. Genoways, Robert J. Baker
University of Nebraska State Museum: Mammalogy Papers
This is the fourth in a series of papers by Jones, et al., dealing with the systematics and distributional status of mammals on the Yucatán Peninsula of México. The present contribution lists 24 native species belonging to the orders Carnivora (18 species), Sirenia (one), Perissodactyla (one), and Artiodactyla (four). Among the carnivores there are one canid, six procyonids, six mustelids, and five felids, whereas the Artiodactyla is represented by two families (Tayassuidae and Cervidae), each with two species.
The Yucatán Peninsula as treated in this series of papers includes the Mexican states of Campeche and Yucatan, and the Federal Territory …
Ipomoea Carnea Jacq. (Convolvulaceae) In Costa Rica, Kathleen H. Keeler
Ipomoea Carnea Jacq. (Convolvulaceae) In Costa Rica, Kathleen H. Keeler
School of Biological Sciences: Faculty Publications
This is the first report of Ipomoea carnea (Convolvulaceae) from lowland Costa Rica. These populations are unusual for the species in flower color, flowering season and pollinator. Other aspects of the biology of the species in Guanacaste, especially pollination, flower robbing and extrafloral nectary visitors, are discussed.
Raising Wood Ducks, Richard L. Nelson
Raising Wood Ducks, Richard L. Nelson
Nebraska Game and Parks Commission: Publications
Numbered among Nature's most colorful creatures, wood ducks willingly accept a helping hand from man in establishing new homes. These birds adapt well to suitable habitat, and you can play an important part in bringing the wood duck to locations where they do not now nest. For groups or individuals who are willing to expend the effort necessary to undertake a wood duck restoration project anti see it to completion, it is an exceptional gift from today's generation to those of decades and centuries to come. Many areas in Nebraska provide suitable wood duck habitat, but do not have a …
Karyotype Of Geomys Pinetis (Mammalia: Geomyidae), With A Discussion Of The Chromosomal Relationships Within The Genus, S. L. Williams, Hugh H. Genoways
Karyotype Of Geomys Pinetis (Mammalia: Geomyidae), With A Discussion Of The Chromosomal Relationships Within The Genus, S. L. Williams, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Summary. Four of the five subspecies of Geomys pinetis were karyotyped. All specimens examined had a diploid number of 42 and a fundamental number of 80. This karyotype was compared with the described karyotypes of other species of Geomys and was considered to be derived from an ancestoral form having a karyotype of about 70 acrocentric elements.
Taxonomy And Zoogeography Of Lemmus Spp. (Rodentia: Arvicolinae), With Notes On Laboratory-Reared Lemmings, Robert L. Rausch, Virginia R. Rausch
Taxonomy And Zoogeography Of Lemmus Spp. (Rodentia: Arvicolinae), With Notes On Laboratory-Reared Lemmings, Robert L. Rausch, Virginia R. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty Publications
Lemmings of the genus Lemmus Link, 1795, have long attracted interest because of the high numerical densities attained at intervals by their populations. In earlier times, in northern Europe, such events seemed so remarkable as to be explained by some as a consequence of the animals' having fallen from the sky (HaGSTROM 1749). During the last 25 years, lemmings have been the object of intensive ecological investigation in Eurasia and North America, although there has been no consensus concerning their taxonomic relationships. In 1959, a colony of brown lemmings from arctic Alaska was established in our laboratory, primarily to provide …
The Prairie Naturalist Volume 6, Nos. 3 And 4. September-December 1974
The Prairie Naturalist Volume 6, Nos. 3 And 4. September-December 1974
The Prairie Naturalist
A BIOLOGICAL SURVEY OF KRAFT SLOUGH ▪ G. L. Krapu & H. F. Duebbert
CHRISTMAS BIRD·COUNTS FOR NORTH DAKOTA - 1974 ▪ R. N. Randall
USE OF SMALL FENCES TO PROTECT GROUND BIRD NESTS FROM MAMMALIAN PREDATORS ▪ A. B. Sargeant & A. D. Kruse
BOOK REVIEW: Finding Birds in Minnesota ▪ E. M. Welter
Bats Of Margarita Island, Venezuela, With Zoogeographic Comments, James Dale Smith, Hugh H. Genoways
Bats Of Margarita Island, Venezuela, With Zoogeographic Comments, James Dale Smith, Hugh H. Genoways
University of Nebraska State Museum: Mammalogy Papers
Sixteen species of bats are reported from Margarita Island, Nueva Esparta, Venezuela. These include two species of emballonurids, one noctilionid, two mormoopids, nine phyllostomatids, one vespertilionid, and one molossid. Accounts including natural history and taxonomic comments are given for each species. The chiropteran fauna of Margarita Island is compared with the bat faunas of the adjacent Venezuelan mainland and islands off the northern coast of South America, including Trinidad and other Antillean islands. It is concluded that the chiropteran fauna of Margarita Island represents an attenuated mainland fauna.