Open Access. Powered by Scholars. Published by Universities.®

Biodiversity Commons™

Open Access. Powered by Scholars. Published by Universities.®

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 4441 - 4470 of 6144

Full-Text Articles in Biodiversity

Observations Of Interactions Between Swift Fox And American Badger [Notes], David E. Ausband, Elizabeth A. Ausband Mar 2006

Observations Of Interactions Between Swift Fox And American Badger [Notes], David E. Ausband, Elizabeth A. Ausband

The Prairie Naturalist

Swift fox (Vulpes velox) and American badger (Taxidea taxus) are sympatric inhabitants of some prairie regions in North America. Although the American badger has been found to prey on swift fox, (Carbyn et al. 1994, Ausband 2005) we report three observations of species interactions made during the summer of 2004 that did not involve predation by the American badger. All three observations are from a reintroduced population of swift fox and occurred on the Blackfeet Indian Reservation, Glacier County, Montana. The Blackfeet Tribe and Defenders of Wildlife reintroduced 123 captive-reared swift fox from 1998 to 2002 …


The Prairie Naturalist, Volume 38, Number 1, March 2006, Elmer J. Finck, Hilary Gillock Mar 2006

The Prairie Naturalist, Volume 38, Number 1, March 2006, Elmer J. Finck, Hilary Gillock

The Prairie Naturalist

Fire History, Passerine Abundance, and Habitat on a North Dakota Drift Plain Prairie by Timothy J. Ludwick and Robert T. Murphy, pages 1-11

Bats in a Human-made Forest of Central Nebraska by Keith Geluso, pages 13-23

Effects of Predator Removal on Upland Nesting Ducks in North Dakota Grassland Fragments by Kristen D. Chodachek and Michael J. Chamberlain, pages 25-37

Estimates of Breeding Bird Populations in the Sheyenne National Grassland, North Dakota by Mary Ann Cunningham, Douglas H. Johnson, and Daniel N. Svingen, pages 39-56

Notes: First Record of the Spurge Hawkmoth as a Pollen Vector for the western Prairie Fringed …


Fire History, Passerine Abundance, And Habitat On A North Dakota Drift Plain Prairie, Timothy J. Ludwick, Robert K. Murphy Mar 2006

Fire History, Passerine Abundance, And Habitat On A North Dakota Drift Plain Prairie, Timothy J. Ludwick, Robert K. Murphy

The Prairie Naturalist

Prescribed fire is among key tools for restoring and managing prairies in the northern Great Plains, yet there are no published reports of its impacts on grassland passerine birds on native prairie in the Drift Plain, a major physiographic subregion. We examined relationships between prescribed fire history and abundance and habitat of breeding passerines in Drift Plain prairie at Des Lacs National Wildlife National Refuge in northwestern North Dakota. In 2003, we used point counts (n = 79 75 m radius plots) to survey bird abundance on 16 management units that had been prescribe-burned one to three times each …


Suggestions For Contributors And Editorial Policy (The Prairie Naturalist), Elmer J. Finck, Hilary Gillock Mar 2006

Suggestions For Contributors And Editorial Policy (The Prairie Naturalist), Elmer J. Finck, Hilary Gillock

The Prairie Naturalist

Suggestions for contributors and editorial policy for The Prairie Naturalist from March 2006, Volume 38, Issue 1.


Estimates Of Breeding Bird Populations In The Sheyenne National Grassland, North Dakota, Mary Ann Cunningham, Douglas Johnson, Daniel N. Svingen Mar 2006

Estimates Of Breeding Bird Populations In The Sheyenne National Grassland, North Dakota, Mary Ann Cunningham, Douglas Johnson, Daniel N. Svingen

The Prairie Naturalist

We conducted a two-year survey of breeding birds in the Sheyenne National Grassland, North Dakota, to estimate total populations of breeding birds. The Grassland is of interest because it provides wildlife habitat and recreational birding opportunities. Indicated breeding pairs were counted on 100-m wide belt transects during morning surveys from late May to early July in 2002 and 2003. We surveyed approximately 6 to 7% of the Grassland each year. The most abundant species in both years were grasshopper sparrow (Ammodramus savannarum), red-winged blackbird (Agelaius phoeniceus), claycolored sparrow (Spizella pallida), Savannah sparrow (Passerculus …


Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain Mar 2006

Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain

The Prairie Naturalist

Low nest success rates in the Prairie Pothole Region are attributed mainly to changes in the predator community coupled with reductions in availability of suitable nesting cover. We evaluated effects of removal of mammalian predators on pair density and nest success of ducks nesting on 259 ha sites in northeastern North Dakota during 2001 and 2002. We monitored pair density and duck nests on 10 sites with removal and 10 sites without removal. Overall nest success for both years was greater on trapped (53.4%) than nontrapped sites (28.7%). Pair densities were not affected by predator removal, but did increase across …


Conserving Cracids: The Most Threatened Family Of Birds In The Americas, Daniel M. Brooks Jan 2006

Conserving Cracids: The Most Threatened Family Of Birds In The Americas, Daniel M. Brooks

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Preface, Russell Mittermeier

Foreword, Stuart D. Strahl

Biology and Conservation of Cracids, Daniel M. Brooks and Richard A. Fuller

  • Introduction
  • The natural history of cracids
  • Why are iracids important
  • Threats to the survival of cracids
  • Conservation actions for cracids

Methods, Daniel M. Brooks and Stuart D. Strahl

Extinct in the Wild and Critically Endangered

  • Alagoas curassow (Mitu mitu), Carlos A. Bianchi
  • White-winged guan (Penelope albipennis), Fernando Angulo Pratolongo, Víctor Raúl Díaz, Rob Williams, and Laura Cancino
  • Trinidad piping-guan (Aburria pipile), Floyd E. Hayes
  • Horned guan (Oreophasis …


2006 Vegetation Survey Of The Valentine National Wildlife Refuge, Robert F. Steinauer Jan 2006

2006 Vegetation Survey Of The Valentine National Wildlife Refuge, Robert F. Steinauer

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

The Valentine National Wildlife Refuge (VNWR), located in north central Cherry County, was established in 1934. Tolstead (1942) studied the grasslands of northern Cherry County, (including the Valentine National Wildlife Refuge) with a focus on describing the dominant species of grassland types and determining the relationships between vegetation distribution and environmental variables and management practices. Additional studies have been conducted by refuge staff on the effects of management, particularly grazing, on vegetation structure. The purpose of this study was to: (1) document all vascular plant species present on the refuge; (2) collect data on rare plant species and high-quality native …


Endangered Species Bulletin: 2006 Highlights Jan 2006

Endangered Species Bulletin: 2006 Highlights

Endangered Species Bulletin

In this issue:
4 Overcoming Challenges to Species Recovery
10 Multispecies Recovery Planning: Benefits and Challenges
12 Reversing a Textbook Tragedy
14 The Public Role in Conserving Species
16 Whooping Crane Population Reaches Record High
19 Defense and Conservation: Compatible Missions
22 Wildlife Conservation and the U.S. Army
24 Desert Tortoises Get Help From the Marines
26 Eggert’s Sunflower Prospers at Arnold AFB
28 In Defense of Coral Reefs
30 Army National Guard Discovers a Tough Little Shrimp
32 Compatible Land Use Partnerships
34 States Working Together for Wildlife
38 Saving Saipan’s White-eye
42 Planning for Wildlife in the Lone …


Characterization Of 35 Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Their Cross-Species Amplification In Four Other Scallops Of The Pectinidae Family, Ana M. Ibarra, Jessica Lynn Petersen, Thomas R. Famula, Bernie May Jan 2006

Characterization Of 35 Microsatellite Loci In The Pacific Lion-Paw Scallop (Nodipecten Subnodosus) And Their Cross-Species Amplification In Four Other Scallops Of The Pectinidae Family, Ana M. Ibarra, Jessica Lynn Petersen, Thomas R. Famula, Bernie May

Department of Animal Science: Faculty Publications

Four microsatellite-enriched DNA libraries yielded 35 microsatellite loci from 100 primer pairs designed for Pacific lion-paw scallop, Nodipecten subnodosus. The number of alleles ranged from four to 28. Three of the 35 loci were not in Hardy–Weinberg equilibrium and linkage disequilibrium was found for one pair of loci. These microsatellites will be used to analyze the population structure of the species in Mexico’s Baja Peninsula to propose management strategies for scallop aquaculture development. Twenty-six primer pairs cross-amplified in Nodipecten nodosus, whereas none (Argopecten ventricosus) or few cross-amplified in the Argopecten species.


Grouse News 31-40 (2006-2010), World Pheasant Association, Birdlife International, Iucn Ssc Grouse Specialist Grop Jan 2006

Grouse News 31-40 (2006-2010), World Pheasant Association, Birdlife International, Iucn Ssc Grouse Specialist Grop

Galliformes Specialist Group and Affiliated Societies: Newsletters

Issue 31 (May 2006)

Editorial 2 From the Chair 2 Research Reports Capercaillie as a tool of forest planning and as an indicator of forest environment quality 4 A Study of Caucasian black grouse Tetrao mlokosiewiczi population dispersion confined in Iran 5 A habitat and habitat-connectivity model for capercaillie Tetrao urogallus in the Black Forest as a tool for sustainable conservation planning (a PhD project in progress) 9 Clarifying the Status of the Caucasian black grouse Tetrao mlokosiewiczi – methodical approach 11 Could competition with ungulates be a limiting factor for Cantabrian capercaillie? A new Ph.D. project 15 Current status …


Wpa News 76 (2006), World Pheasant Association Jan 2006

Wpa News 76 (2006), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Winter 2006), number 76

Published by the World Pheasant Association


Proceedings Of The Western Australian Dhufish Workshop 2004, Mark Pagano, Terry Fuller Jan 2006

Proceedings Of The Western Australian Dhufish Workshop 2004, Mark Pagano, Terry Fuller

Fisheries Occasional Publications

The Western Australian Dhufish Workshop 2004 was a joint project between Recfishwest and the Western Australian Department of Fisheries.

The workshop incorporated presentations from the Department of Fisheries, Recfishwest, the Western Australian Fishing Industry Council, Murdoch University and Challenger TAFE to showcase current knowledge relating to the iconic dhufish in Western Australia. The perspectives of a recreational fisher, a commercial wetline operator and a metropolitan charter boat operator were also presented.

Through information sharing and discussion the workshop provided a platform to better understand the fundamental issues that underpin current and future management arrangements for this valuable resource. Both commercial …


Bogidiella Indica, A New Species Of Subterranean Amphipod Crustacean (Bogidiellidae) From Wells In Southeastern India, With Remarks On The Biogeographic Importance Of Recently Discovered Bogidiellids On The Indian Subcontinent, John R. Holsinger, Y. Ranga Reddy, Mohammed Messouli Jan 2006

Bogidiella Indica, A New Species Of Subterranean Amphipod Crustacean (Bogidiellidae) From Wells In Southeastern India, With Remarks On The Biogeographic Importance Of Recently Discovered Bogidiellids On The Indian Subcontinent, John R. Holsinger, Y. Ranga Reddy, Mohammed Messouli

Biological Sciences Faculty Publications

Bogidiella indica, new species, is described from three water wells in southeastern India, including a bore-well on the campus of Acharya Nagarjuna University in Nagarjunanagar, a water well in Guntur town, and an agricultural well in the Godavari and Krishna Basin, all in the state of Andhra Pradesh, India. The new species is assigned to the genus Bogidiella Hertzog and to a newly designated species group within the genus. Despite the near circum-global distribution of the family Bogidiellidae, only a single, partially intact specimen of a bogidiellid had been collected from the Indian subcontinent prior to the discovery of specimens …


Distribution And Status Of The Southern Bog Lemming, Synaptomys Cooperi, In Southeastern Virginia, Robert K. Rose Jan 2006

Distribution And Status Of The Southern Bog Lemming, Synaptomys Cooperi, In Southeastern Virginia, Robert K. Rose

Virginia Journal of Science

The Dismal Swamp subspecies of the Southern bog lemming, Synaptomys cooperi helaletes, was named based on specimens collected during the 1895-1898 biological surveys conducted in the Dismal Swamp by the US Department of Agriculture. Unknown in the 20th Century until re-discovered in 1980, this small boreal rodent was believed to be restricted to the Great Dismal Swamp of Virginia and North Carolina where the cool damp conditions had permitted it to survive during the Holocene. However, field studies conducted since 1980 have revealed southern bog lemmings to be widespread throughout southeastern Virginia, with populations encompassing an area of more …


Myxozoan Genera: Definition And Notes On Taxonomy, Life-Cycle Terminology And Pathogenic Species, Jiří Lom, Iva Dyková Jan 2006

Myxozoan Genera: Definition And Notes On Taxonomy, Life-Cycle Terminology And Pathogenic Species, Jiří Lom, Iva Dyková

Harold W. Manter Laboratory of Parasitology: Library Materials

A list of myxozoan genera is presented in the current taxonomical scheme. These genera are defined; their type species and most important pathogens along with their hosts are listed. Simultaneously, definitions of actinospore stages representing sexual stages of the myxosporean life cycle are given; altogether, 17 actinospore collective groups with 180 types have been described. Life cycles of the two classes of the phylum Myxozoa, Malacosporea and Myxosporea, are briefly outlined with specification of the appropriate terms. Up to now, 4 malacosporean and 2,180 myxosporean species assigned to a total of 62 genera, have been established. The surviving classification of …


Urine-Marking And Ground-Scratching By Free-Ranging Arctic Wolves, Canis Lupus Arctos, In Summer, L. David Mech Jan 2006

Urine-Marking And Ground-Scratching By Free-Ranging Arctic Wolves, Canis Lupus Arctos, In Summer, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Urine-marking and ground-scratching were observed in an Arctic Wolf (Canis lupus) pack on Ellesmere Island, Nunavut, Canada, during 16 summers between 1986 and 2005. All previously known urination postures and ground-scratching by breeding males and females were seen, and incidence of marking and scratching was greatest when non-pack wolves were present. Observations of urine-marking of food remains supported the conclusion from a captive Wolf study that such marking signals lack of edible food.


Parelaphostrongylus Odocoilei In Columbia Black-Tailed Deer From Oregon, Jack A. Mortenson, Arthur Abrams, Benjamin M. Rosenthal, Detiger Dunams, Eric P. Hoberg, Robert J. Bildfell, Richard L. Green Jan 2006

Parelaphostrongylus Odocoilei In Columbia Black-Tailed Deer From Oregon, Jack A. Mortenson, Arthur Abrams, Benjamin M. Rosenthal, Detiger Dunams, Eric P. Hoberg, Robert J. Bildfell, Richard L. Green

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Documenting the occurrence of Parelaphostrongylus odocoilei has historically relied on the morphological examination of adult worms collected from the skeletal muscle of definitive hosts, including deer. Recent advances in the knowledge of protostrongylid genetic sequences now permit larvae to be identified. Dorsal-spined larvae (DSLs) collected in 2003–2004 from the lung and feces of six Columbian black-tailed deer (Odocoileus hemionus columbianus) from Oregon were characterized genetically. The sequences from unknown DSLs were compared to those from morphologically validated adults and larvae of P. odocoilei at both the second internal transcribed spacer (ITS-2) of ribosomal DNA and the mitochondrial cytochrome …


Annual Review Of The World Pheasant Association 2005/2006, World Pheasant Association Jan 2006

Annual Review Of The World Pheasant Association 2005/2006, World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials

Chairman of Trustees' report, G. R. (Dick) Potts

Treasurer's report for the year ended April 30, 2006, J. A. Sampson

Responding to UK Government consultations affecting captive stocks, Dick Potts and Simon Mayes

Specialist Groups: Global networks of technical excellence

WPA around the world: highlights from the chapters

Does the Blyth's tragopan have a future in captivity? Michel Saint Jalme and Sophie Chavanne

Cheer pheasant conservation summit in Kathmandu, Peter J. Garson and Hem S. Baral

Making forests more sustainable in Palas Valley, District Kohistan, Pakistan, Rab Nawaz

Key findings from the 2005 annual species surveys in UK and Germany, …


Results Of The Alcoa Foundation-Suriname Expeditions. Xiv. Mammals Of Brownsberg Nature Park, Suriname, Burton K. Lim, Mark D. Engstrom, Hugh H. Genoways, François M. Catzeflis, Kelly A. Fitzgerald, Sandra L. Peters, Marijem Djosetro, Sandra Brandon, Sutrisno Mitro Dec 2005

Results Of The Alcoa Foundation-Suriname Expeditions. Xiv. Mammals Of Brownsberg Nature Park, Suriname, Burton K. Lim, Mark D. Engstrom, Hugh H. Genoways, François M. Catzeflis, Kelly A. Fitzgerald, Sandra L. Peters, Marijem Djosetro, Sandra Brandon, Sutrisno Mitro

University of Nebraska State Museum: Mammalogy Papers

An inventory of mammals in the vicinity of Brownsberg Nature Park, Suriname, incorporated a number of different sampling methods including examining museum voucher specimens, an animal-rescue operation, transect surveys, camera photo-traps, and interviews with local inhabitants. We document a total of 125 mammal species present in the Park. These include ten opossums, five pilosans, four armadillos, 58 bats, eight monkeys, 13 carnivores, one tapir, four artiodactyls, and 22 rodents. Nine of these species are reported for the first time from Suriname: one mouse opossum (Marmosops pinheiroi); one naked-backed moustached bat (Pteronotus gymnonotus); four fruit-eating bats ( …


The Prairie Naturalist, Volume 37, No.4 December 2005 Dec 2005

The Prairie Naturalist, Volume 37, No.4 December 2005

The Prairie Naturalist

AVIAN COMMUNITY RESPONSE TO CONSTRUCTION OF A NATURALISTIC GOLF COURSE IN TALL GRASS PRAIRIE IN KANSAS ▪ R. J. Robel, S. L. Bye, K. E. Kemp, and S. J. Thien

SECOND REPORT OF THE NORTH DAKOTA BIRD RECORDS COMMITTEE: 2002-2003 ▪ D. Svingen, and R. E. Martin

RECENT RECORDS OF FORMERLY EXTIRPATED CARNIVORES IN NEBRASKA ▪ J. D. Hoffman, and H. H. Genoways

PLAINS HARVEST MOUSE IN NORTH DAKOTA ▪ R. W. Seabloom, and T. L. Shaffer

Book Reviews

A Primer on Prairie Ecology ▪ M. A. Cunningham

Range Wars: Have Prairie Dogs Lost the Battle for the West? ▪ …


Endangered And Threatened Wildlife And Plants; Determination Of Endangered Status For The Salt Creek Tiger Beetle (Cicindela Nevadica Lincolniana) Oct 2005

Endangered And Threatened Wildlife And Plants; Determination Of Endangered Status For The Salt Creek Tiger Beetle (Cicindela Nevadica Lincolniana)

Endangered Species Bulletin

We, the U.S. Fish and Wildlife Service (Service), determine endangered status for the Salt Creek tiger beetle (Cicindela nevadica lincolniana), pursuant to the Endangered Species Act (Act) of 1973, as amended (Act). This species is endemic to the saline wetlands of eastern Nebraska (NE) and associated streams in the northern third of Lancaster County and southern margin of Saunders County. Only three small populations of this subspecies remain, and the known adult population size in 2005 was only 153 individuals. This final rule extends Federal protection and recovery provisions of the Act to the Salt Creek tiger beetle.


Fish Consumption Patterns Of Populations In Vicinities Of Lake Kastoria And Lake Pamvotis, Greece, Eugene G. Maurakis, David V. Grimes, Dimitra Bobori Oct 2005

Fish Consumption Patterns Of Populations In Vicinities Of Lake Kastoria And Lake Pamvotis, Greece, Eugene G. Maurakis, David V. Grimes, Dimitra Bobori

Virginia Journal of Science

Objectives are to establish fish consumption patterns of populations in vicinities of two lakes (Kastoria and Pamvotis) in Greece for use in the assessment of risks associated with consumption of fishes in these agri-chemically impaired lakes. Parameters measured were demographics (i.e., gender, age, weight, education level, occupation, residency), freshwater fish eating frequency, species and sizes of fishes consumed, and fish consumption habits [i.e., quantity, parts, and preparation method). All annual mean site-specific consumption rates of the four gender-age class sub-populations surveyed in vicinity of Lake Kastoria (avg. range= 0.103-0.29 kg/day) exceed those of Greece (0.066 kg/day), EU (0.068 kg/day), Spain …


Endangered Species Bulletin, September 2005 - Vol. Xxx No. 2 Sep 2005

Endangered Species Bulletin, September 2005 - Vol. Xxx No. 2

Endangered Species Bulletin

In this issue:
4 CITES Supports Sustainable Use
8 Fact or Fiction: CITES and the ESA
10 Partnerships for Alligator Recovery and Trade
12 Sustainable Use for Vicuña Conservation
14 The Role of CITES in Orchid Conservation
16 Managing the Trade in Sturgeon and Paddlefish
18 Enforcement Starts with Wildlife Inspectors
20 Room at the Table: Voices of NGOs
22 Species Conservation Under Appendix I
24 Mushrooms and the Future of CITES
26 Focus on Refuges
29 Regional News


The Prairie Naturalist, Volume 37, Number 3, September 2005 Sep 2005

The Prairie Naturalist, Volume 37, Number 3, September 2005

The Prairie Naturalist

Landscape Compostiona and Greater Prairie Chicken Lek Attendance: Implications for Management by N. D. Niemuth

Helminthic Parasites in Ring-necked Pheasant from Southwestern Kansas by R. J. Robel, T. L. Walker, Jr., R. K. Ridley, K. E. Kemp, and R. D. Applegate

Seasonal Migration and Home Ranges of Female Elk in the Black Hills of South Dakota and Wyoming by L. Benkobi, M. A. Rumble, C. H. Stubblefield, R. S. Garno, and J. J. Millspaugh

Ring-necked Pheasant Survive with Broken Wings by R. D. Applegate and L. Scott

First Nebraska Nest Record for Henslow's Sparrow by D. H. Kim

RangeE Extension …


Day 3: Friday, 19 August 2005: Section 7 Consultation, Susan Linner, Leslie Elwood, Steve Culver Aug 2005

Day 3: Friday, 19 August 2005: Section 7 Consultation, Susan Linner, Leslie Elwood, Steve Culver

Endangered Species Act Congressional Field Tour (August 17-19)

10 pages (includes color illustrations and map).

Contains references.


Day 3: Friday, 19 August 2005: Habitat Conservation Plans, Susan Linner, Anne Ruggles, Anne Winans Aug 2005

Day 3: Friday, 19 August 2005: Habitat Conservation Plans, Susan Linner, Anne Ruggles, Anne Winans

Endangered Species Act Congressional Field Tour (August 17-19)

5 pages (includes illustration).

Contains references.


Day 2: Thursday, 18 August 2005: Upper Colorado River Endangered Fish Recovery Program, Bob Muth, Tom Pitts, Dan Luecke Aug 2005

Day 2: Thursday, 18 August 2005: Upper Colorado River Endangered Fish Recovery Program, Bob Muth, Tom Pitts, Dan Luecke

Endangered Species Act Congressional Field Tour (August 17-19)

58 pages (includes illustrations and maps).

Contains references.


Day 2: Thursday, 18 August 2005: Candidate Conservation Agreements And Collaborative Multi-Party Agreements, Al Pfister, Gary Skiba, Tim Lehmann Aug 2005

Day 2: Thursday, 18 August 2005: Candidate Conservation Agreements And Collaborative Multi-Party Agreements, Al Pfister, Gary Skiba, Tim Lehmann

Endangered Species Act Congressional Field Tour (August 17-19)

8 pages (includes illustrations and maps).

Contains references.


Day 2: Thursday, 18 August 2005: Canada Lynx Reintroduction, Gary Skiba, Rob Edward, Bonnie Kline Aug 2005

Day 2: Thursday, 18 August 2005: Canada Lynx Reintroduction, Gary Skiba, Rob Edward, Bonnie Kline

Endangered Species Act Congressional Field Tour (August 17-19)

5 pages (includes some color illustrations and maps).

Contains references.