scholarly journals Stakeholder Perceptions on the Need for Updated Tree Species Distribution Maps

Forests ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1367
Author(s):  
Pete Bettinger ◽  
Krista Merry ◽  
Alba Rocio Gutierrez Garzon ◽  
Taeyoon Lee ◽  
Jacek Siry ◽  
...  
Keyword(s):  
North America ◽  
Tree Species ◽  
The United States ◽  
Professional Organizations ◽  
Current Range ◽  
Distribution Maps ◽  
Stakeholder Groups ◽  
Decision Making Processes ◽  
Plant Hardiness ◽  
Insight Into

Tree species distributions presented as range maps are powerful tools for forest-based decision-making processes. In the United States, Silvics of North America is a well-known reference for over 200 tree species. However, the current range maps are likely outdated due to changes in land use, advancements in technology, shifts in plant hardiness zones due to climate change, and shifting societal values that influence the development of these resources. Therefore, a survey was distributed to two stakeholder groups, registered foresters in four states and members of several professional organizations, to gain insight into whether Silvics of North America range maps should be updated. Although the survey delivery method varied between the two survey sampling frames, the opinions on updating species range maps between the two stakeholder groups were similar. Both groups indicated that updating the current range maps would be valuable and would best be informed by remote sensing, national field inventories, and expert insight, and by adding color and perhaps importance classes.

Nicholas Said

2021 ◽  
Author(s):  
Mohammed Bashir Salau
Keyword(s):  
United States ◽  
North America ◽  
Middle East ◽  
19Th Century ◽  
North Africa ◽  
The United States ◽  
Primary Sources ◽  
Sahara Desert ◽  
Insight Into

The two versions of the autobiography that Nicholas Said published offer insight into 19th-century conditions in five continents as well as insight into life as a child, slave, manservant, and teacher. As a child in the 1830s, Said was enslaved in Borno, marched across the Sahara Desert, and passed from hand to hand in North Africa and the Middle East. After serving as a slave in various societies, Said was freed by a Russian aristocrat in the late 1850s after accompanying the aristocrat in question to various parts of Europe. In the 1850s, Said also traveled as a manservant for a European traveler to South and North America. Ultimately he settled in the United States, where he authored two versions of his autobiography, served as a teacher and soldier, got married, and disappeared from sight. This article compares the two versions of the autobiography that Said published, provides an overview of Said’s life, charts the development of scholarly works on Said, and draws attention to the primary sources related to the study of Said and his autobiography.

REVISION OF THE NEARCTIC SPECIES OFATHOUS(COLEOPTERA: ELATERIDAE) EAST OF THE ROCKY MOUNTAINS

1974 ◽  
Vol 106 (7) ◽  
pp. 711-758 ◽  
Author(s):  
Edward C. Becker
Keyword(s):  
United States ◽  
North America ◽  
Rocky Mountains ◽  
The United States ◽  
Common Species ◽  
Junior Synonym ◽  
Quebec City ◽  
Maritime Provinces ◽  
European Species ◽  
Distribution Maps

AbstractThe Nearctic species of the elaterid genusAthouseast of the Rocky Mountains are revised. Of the 16 included species, two are described as new (neacanthusknown from southern Quebec to northern Georgia andorvusknown from Nova Scotia to Michigan to Virginia) and two species are transferred fromDenticollis, namely,productus(Randall) andquadrosaBecker (as a new junior synonym ofA.appalachiusVan Dyke). Other new synonymies are:carolinusVan Dyke as a junior synonym ofacanthus(Say),erebusVan Dyke ofposticus(Melsheimer), andbipunctatusProvancher ofproductus(Randall). The European speciescampyloidesis known from North America from near Quebec City and in the Canadian Maritime Provinces. Neotypes are designated for the five species described by Say and Randall and for one described by Melsheimer; lectotypes, when needed, are designated for LeConte’s, Melsheimer’s, and Candèze’s species. A key to the species is presented and the salient features and distribution maps for each species are included. Brief notes are given on three western species ofAthous: two common species (rufiventris(Eschscholtz) andnigropilisMotschulsky) that are occasionally found east of the Rockies andorophilusHarold, which is known only by the type from the Bitter Root Mountains. Brief discussions are included of two European species,vittatus(Fabricius) andsubfuscus(Müller), which have been intercepted at various eastern ports in Canada and the United States, but which have not become established in North America.

Revision of the genus Dibolia Latreille in America north of Mexico (Coleoptera: Chrysomelidae)

1974 ◽  
Vol 52 (11) ◽  
pp. 1317-1354 ◽  
Author(s):  
Richard H. Parry
Keyword(s):  
United States ◽  
North America ◽  
Host Plant ◽  
The United States ◽  
Distribution Maps ◽  
First Time ◽  
North America North

The chrysomelid genus Dibolia Latr. is revised for North America north of Mexico. Thirteen species are recognized, 6 of which are described as new: D. californica, D. chelones, D. kansana, D. melampyri, D. obscura, and D. penstemonis. Dibolia championi Jacoby is recorded for the first time from the United States and Mexico.All species are described and illustrated, host plant records are provided where possible, and a key for the separation of the species is presented. The distribution of each species is indicated by locality records and distribution maps. A general discussion of the habits of the genus, a brief redescription of the larva of D. borealis Chev., and a brief review of the habits of this species are also included.

scholarly journals A new genus and three new species of noctuid moths from western United States of America and Mexico (Lepidoptera, Noctuidae, Noctuinae, Eriopygini)

ZooKeys ◽  
2018 ◽  
Vol 788 ◽  
pp. 183-199 ◽  
Author(s):  
Lars G. Crabo
Keyword(s):  
United States ◽  
New Species ◽  
North America ◽  
United States Of America ◽  
New Genus ◽  
The United States ◽  
Western United States ◽  
Distribution Maps ◽  
Three New Species ◽  
Lepidoptera Noctuidae

The genus Rhabdorthodesgen. n. is described for three previously unnamed noctuid moths from the mountains of south-western United States and Mexico. It is assigned to subfamily Noctuinae, tribe Eriopygini. Rhabdorthodespattersonisp. n. from the United States and Rhabdorthodesdurangosp. n. and Rhabdorthodespetersonisp. n. from Mexico are described. These moths are small, dull gray brown, and lack highly diagnostic wing markings, but are distinctive structurally. The adults and genitalia of both sexes are illustrated and distribution maps are presented. Two species eponyms honor persons who have facilitated the study and enjoyment of moths in North America by creating moth-specific websites.

scholarly journals Road Tripping Across North America: A Medical Student’s Perspective

2019 ◽  
Vol 9 (2) ◽  
pp. 35-37
Author(s):  
Jonathan Robert Whelan
Keyword(s):  
United States ◽  
North America ◽  
The United States ◽  
Therapeutic Relationships ◽  
Road Trip ◽  
Emotional Resiliency ◽  
Personal Reflections ◽  
Insight Into

This explorative report provides an overview of the experiences and insights of a Canadian medical student’s seven-week, solo road trip across the United States and Canada. Examples of travel moments and mishaps are used to provide insight into personal reflections regarding emotional resiliency, healthcare sustainability and therapeutic relationships.

A taxonomic study of Stipa nelsonii (Poaceae) with a key distinguishing it from related taxa in western North America

1979 ◽  
Vol 57 (22) ◽  
pp. 2539-2553 ◽  
Author(s):  
Mary E. Barkworth ◽  
J. McNeill ◽  
Jack Maze
Keyword(s):  
North America ◽  
Weighting Function ◽  
The United States ◽  
Morphological Data ◽  
Numerical Analyses ◽  
Western North America ◽  
Distribution Maps ◽  
Infraspecific Taxa ◽  
Character Weighting ◽  
Intermountain Region

Stipa nelsonii, more commonly but incorrectly known as S. Columbiana, is a wide ranging species of western North America, characterized by a short, pubescent palea and a hirtellous awn. Initial numerical analyses, using unweighted morphological data, suggested that three infraspecific taxa existed but with different methods of analysis there was a disturbing instability in the placement of certain operational taxonomic units (OTUs), including those based on the holotype of S. williamsii. Because replicate OTUs were incorporated in the sample, a character weighting, based on the relative constancy of character states within replicate pairs, was applied. The particular weighting function adopted utilized the added component of variance between groups, i.e., between the replicate pairs. Numerical analyses based on the weighted data proved to be stable with respect to all the OTUs. They suggested recognition of three infraspecific taxa. Keys to these taxa were devised and applied to about 400 additional specimens allowing the geographical and ecological distributions of the suggested taxa to be examined. The combined morphological and distributional studies suggest that S. nelsonii comprises two subspecies: subsp. nelsonii and subsp. dorei. Two varieties can be recognized in subsp. nelsonii: var. nelsonii centered in the intermountain region of the United States and var. longiaristata centered in eastern Washington. The range of subsp. dorei extends from southern Yukon to California and eastward to the Saskatchewan–Manitoba border. A key to the infraspecific taxa of S. nelsonii and to related taxa of western North America is included, as well as descriptions and distribution maps of the infraspecific taxa recognized in S. nelsonii.

scholarly journals Distribution of Sage-Grouse in North America

The Condor ◽  
2004 ◽  
Vol 106 (2) ◽  
pp. 363-376 ◽  
Author(s):  
Michael A. Schroeder ◽  
Cameron L. Aldridge ◽  
Anthony D. Apa ◽  
Joseph R. Bohne ◽  
Clait E. Braun ◽  
...  
Keyword(s):  
North America ◽  
Invasive Plant ◽  
Centrocercus Urophasianus ◽  
Livestock Grazing ◽  
Sage Grouse ◽  
Current Range ◽  
Distribution Maps ◽  
Potential Habitat ◽  
San Luis ◽  
Forest Habitats

Abstract We revised distribution maps of potential presettlement habitat and current populations for Greater Sage-Grouse (Centrocercus urophasianus) and Gunnison Sage- Grouse (C. minimus) in North America. The revised map of potential presettlement habitat included some areas omitted from previously published maps such as the San Luis Valley of Colorado and Jackson area of Wyoming. Areas excluded from the revised maps were those dominated by barren, alpine, and forest habitats. The resulting presettlement distribution of potential habitat for Greater Sage-Grouse encompassed 1 200 483 km2, with the species' current range 668 412 km2. The distribution of potential Gunnison Sage-Grouse habitat encompassed 46 521 km2, with the current range 4787 km2. The dramatic differences between the potential presettlement and current distributions appear related to habitat alteration and degradation, including the adverse effects of cultivation, fragmentation, reduction of sagebrush and native herbaceous cover, development, introduction and expansion of invasive plant species, encroachment by trees, and issues related to livestock grazing. Distribución de Centrocercus spp. en América del Norte Resumen. Revisamos los mapas de distribución potencial precolombino y de poblaciones actuales de Centrocerus urophasianus y C. minimus en América del Norte. El mapa modificado de hábitat potencial precolombino incluyó algunas áreas omitidas de mapas anteriormente publicados, como el Valle San Luis de Colorado y el área de Jackson, Wyoming. Las áreas excluídas de los mapas modificados fueron las dominadas por hábitats forestales, alpinos y estériles. La distribución precolombina resultante para C. urophasianus abarcó 1 200 483 km2, con un territorio actual de 668 412 km2. La distribución de habitat potencial para C. minimus abarcó 46 521 km2, con un territorio actual de 4787 km2. Estos contrastes tan marcados parecen estar relacionados con la modificación y degradación del hábitat, incluyendo los efectos nocivos de la agricultura, la fragmentación de hábitat, la disminución de Artemisia spp. y otras coberturas herbáceas nativas, el desarollo, la introducción y la expansión de especies de plantas invasoras, la invasión de árboles y cuestiones relacionadas con pastoreo de ganado.

Transgovernmental challenge and response in Scandinavia and North America

1976 ◽  
Vol 30 (2) ◽  
pp. 213-240 ◽  
Author(s):  
C. Robert Dickerman
Keyword(s):  
United States ◽  
North America ◽  
The United States ◽  
World Politics ◽  
Theoretical Argument ◽  
Political Actors ◽  
Great Relevance ◽  
Traditional Institutions ◽  
Insight Into ◽  
Considerable Insight

Eighty interviews with bureaucratic and political actors in five national capitals illustrate the Keohane/Nye theoretical argument concerning the importance of transnational and, specifically, transgovernmental factors in world politics. Focusing upon the development and application of integrative techniques between countries which have no formal supemational integrative institutions, the paper reports on the practice of transgovernmental politics within the dyad of Canada and the United States, and the triad of Denmark, Norway, and Sweden. Dealing both with middlelevel bureaucratic practitioners concerned with horizontal coordination of policy and administration between countries, and with bureaucratic and political actors responsible for the cohesiveness of national policies, the paper explores situations in which the demands of external and domestic harmonization are inconsistent, and sometimes mutually contradictory. The problem of maintaining “dual coherence” in domestic and external policy and administration is identified, and procedures for attempting such coordination are discussed. Of importance are modifications within the traditional institutions of inter-state communication: foreign offices and embassies. Recommendations are made on the basis of the intra-North American and intra Scandinavian experiences. It is suggested that considerable insight into managing policy and administrative areas which are neither purely domestic nor purely external may be gained by the study of bureaucratic experience only infrequently considered by students or governmental managers. Insights which may be gained from such study, it is argued, may be of great relevance in dealing with the challenge which transgovernmental horizontal harmonization now poses for national administrations.

The generation of USDA-equivalent extreme minimum temperature models and a comparison with Canada’s plant hardiness zones

2006 ◽  
Vol 86 (2) ◽  
pp. 511-523 ◽  
Author(s):  
Daniel W. McKenney ◽  
Michael Hutchinson, Pia Papadopol ◽  
Kathy Campbell ◽  
Kevin Lawrence
Keyword(s):  
North America ◽  
Minimum Temperature ◽  
Smoothing Splines ◽  
The United States ◽  
United States Department ◽  
Perennial Plant ◽  
Mapping Tool ◽  
Extreme Minimum Temperature ◽  
Local Use ◽  
Plant Hardiness

Hardiness zones are widely used in North America to support the trade of plants and recommendations on local use of perennial plant species. In Canada, two zonation approaches are in use, a made-in-Canada model that integrates seven climate variables and the United States Department of Agriculture’s (USDA) extreme minimum temperature map/model. In this paper we develop and present several extreme minimum temperature models for the 1961–1990 and 1971–2000 climate normal periods and annual models for the winter seasons of 1961 through 2000. These models are similar in nature to the USDA plant hardiness model/map. We compare these models with a recent update of the Canadian plant hardiness zones developed with the same mathematical interpolation techniques (thin plate smoothing splines). Individual Canadian zones typically span five to nine USDA equivalent sub-zones in total, although most of the area (>75%) of each zone generally spans 3–4 USDA sub-zones. We note that there is no simple transformation of one zonation approach to the other, but values for both systems can now be obtained for any location in Canada using an internet mapping tool. Over the period of 1961–2000 extreme minimum temperature has been trending upward in most provinces. These trends may be affecting plants in some locations, but a lack of survival and/or hardiness data is a significant impediment to assessing this. Variation in extreme minimum temperature over the 1961 to 2000 period was greatest in western North America, particularly interior British Columbia. Key words: Climate mapping and trends, spatial analysis, ANUSPLIN

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