THE VEGETATION OF NORTHERN MANITOBA: IV. THE CARIBOU LAKE REGION

1960 ◽  
Vol 38 (2) ◽  
pp. 185-199 ◽  
Author(s):  
J. C. Ritchie
Keyword(s):  
Picea Glauca ◽  
Vascular Plants ◽  
Black Spruce ◽  
Field Work ◽  
Aerial Photographs ◽  
Good Growth ◽  
Vegetation Types ◽  
Active Layers ◽  
Lake Region ◽  
Spruce Stands

Based on the findings of one season of field work, an account is given of the vegetation and flora (vascular plants) of the immediate vicinity of Caribou Lake in northeast Manitoba. The plant communities are grouped according to physiographic position. Their chorology is presented in the form of a map which was compiled from interpretation of vertical aerial photographs of the area. The appearance of the various vegetation types on the aerial photographs is described.The prevalent vegetation of mesic sites is a tundra community dominated by ericoid shrubs. There is strong evidence that much of this treeless vegetation occupies sites where trees once grew; they have been removed by fires. Recent alluvium bears stands of Picea glauca (white spruce) which shows good growth. Shallow wet peats are covered by black spruce stands with shrubs and mosses, chiefly Sphagnum. Deeper peats, usually with shallow active layers, bear heath or sedge–cottongrass tundra.

scholarly journals Vascular Plants and Vegetation of the Sayula sub-basin, Jalisco, Mexico

2018 ◽  
Vol 96 (1) ◽  
pp. 103
Author(s):  
Miguel Ángel Macías-Rodríguez ◽  
Héctor Gerardo Frías-Ureña ◽  
Sergio Honorio Contreras-Rodríguez ◽  
Alfredo Frías-Castro
Keyword(s):  
Vascular Plants ◽  
Deciduous Forest ◽  
Field Work ◽  
Tropical Deciduous Forest ◽  
Floristic Diversity ◽  
Vegetation Types ◽  
Timely Manner ◽  
Complex Landscape ◽  
The One ◽  
Total Species

<p><strong>Background:</strong> The Sayula sub-basin presents a complex landscape composed of plants communities that to date have not been studied in a timely manner, so this study contributes to the knowledge of the flora and vegetation of the area and the State.</p><p><strong>Question:</strong> i) How many and which families, genera and species are in the Sayula sub-basin? ii) What are the main biological forms of the species? iii) Are there species under any category of protection? iv) How many vegetation types are present within the region?<br /> <strong>Studied species:</strong> Ferns, Gymnosperms and Angiosperms.<br /> <strong>Study site and years of study:</strong> The Sayula sub-basin, Jalisco, Mexico; from February 2012 to October 2015.<br /> <strong>Methods:</strong> Through the literature review and field work the floristic checklist was elaborated. In addition, with the use of geographic information systems, a map of land use and vegetation was made.<br /> <strong>Results:</strong> A total of 687 species were recorded, including 415 genera and 113 families. The five main families were Poaceae, Asteraceae, Fabaceae Solanaceae and Euphorbiaceae representing 42.6 % of the total species and 36.6 % of the genera. It should be noted that the predominant biological forms were herbs with 409, 105 shrubs and 74 trees. On the other hand, 47 species registered under some protection category of which, only one species <em>Cleomella jaliscensis</em> is endemic to the region. Finally, eight vegetation types were determined, being the tropical deciduous forest the one that occupies greater surface and presents greater floristic diversity.<br /> <strong>Conclusions:</strong> It is important to emphasize that during the realization of the work, agricultural activities were detected affecting the flora and vegetation, threatening the biodiversity and the natural balance of the region.</p>

Notes on the Biology of Griselda radicana (Wlshm.) (Lepidoptera: Olethreutidae)

1961 ◽  
Vol 93 (8) ◽  
pp. 648-653 ◽  
Author(s):  
J. R. Blais
Keyword(s):  
Life History ◽  
Picea Mariana ◽  
Picea Glauca ◽  
Black Spruce ◽  
Host Tree ◽  
Balsam Fir ◽  
Forest Insect ◽  
Picea Pungens ◽  
Disease Survey ◽  
Spruce Stands

In the course of studles on different species of defoliators in field-spruce stands on the Gaspé coast of the Baie des Chaleurs, Griselda radicana (Wlshm.) occurred fairly commonly in such stands. Although the principal host tree of this insect is white spruce, Picea glauca (Moench) Voss, records of the Forest Insect and Disease Survey show that it has been collected from black spruce, Picea mariana (Mill.) BSP., Colorado spruce, Picea pungens Engelm., and balsam fir, Abies halramea (L.) Mill. Although G. radicana is commonly found across Canada, there are no records that it has ever reached outbreak proportions. These investigations were undertaken since nothing was known on the life history and habits of this insect. The studies were carried out near New Richmond in the Gaspé Peninsula in the summer of 1959.

Classification of vegetation in Cucphuong National Park with the aim of large-scale mapping, Vietnam

1996 ◽  
pp. 64-67 ◽  
Author(s):  
Nguen Nghia Thin ◽  
Nguen Ba Thu ◽  
Tran Van Thuy
Keyword(s):  
National Park ◽  
Large Scale ◽  
Satellite Images ◽  
Field Work ◽  
Aerial Photographs ◽  
Vegetation Map ◽  
Dense Forest ◽  
Broad Leaved Forest ◽  
Leaved Forest

The tropical seasonal rainy evergreen broad-leaved forest vegetation of the Cucphoung National Park has been classified and the distribution of plant communities has been shown on the map using the relations of vegetation to geology, geomorphology and pedology. The method of vegetation mapping includes: 1) the identifying of vegetation types in the remote-sensed materials (aerial photographs and satellite images); 2) field work to compile the interpretation keys and to characterize all the communities of a study area; 3) compilation of the final vegetation map using the combined information. In the classification presented a number of different level vegetation units have been identified: formation classes (3), formation sub-classes (3), formation groups (3), formations (4), subformations (10) and communities (19). Communities have been taken as mapping units. So in the vegetation map of the National Park 19 vegetation categories has been shown altogether, among them 13 are natural primary communities, and 6 are the secondary, anthropogenic ones. The secondary succession goes through 3 main stages: grassland herbaceous xerophytic vegetation, xerophytic scrub, dense forest.

scholarly journals Comparative Height Growth of Eastern Larch and Black Spruce in Northwestern Ontario

1978 ◽  
Vol 54 (6) ◽  
pp. 296-297 ◽  
Author(s):  
Douglas A. Mead
Keyword(s):  
Picea Mariana ◽  
Black Spruce ◽  
Height Growth ◽  
Larix Laricina ◽  
Stem Analysis ◽  
Northwestern Ontario ◽  
Analysis Methods ◽  
Spruce Stands

Height growth of eastern larch (Larix laricina (Du Roi) K. Koch) and black spruce (Picea mariana (Mill.) B.S.P.) was determined using standard stem analysis methods on trees from two sites in northwestern Ontario. The data were obtained from mixed larch-spruce stands which were relatively undisturbed. The larch exhibited substantially better height growth than the spruce through age 65.

scholarly journals Vegetation mapping in an area of Ombrophilous Dense Forest at Parque Estadual da Serra do Mar, São Paulo State, Brazil, and floristic composition of the tree component of some physiognomies*

Hoehnea ◽  
2012 ◽  
Vol 39 (2) ◽  
pp. 219-233 ◽  
Author(s):  
Maria Cláudia Melo Pacheco de Medeiros ◽  
Isabel Fernandes de Aguiar Mattos ◽  
Marina Mitsue Kanashiro ◽  
Jorge Yoshio Tamashiro ◽  
Marcos Pereira Marinho Aidar
Keyword(s):  
Riparian Forest ◽  
Detrended Correspondence Analysis ◽  
Floristic Composition ◽  
Field Work ◽  
Aerial Photographs ◽  
Secondary System ◽  
Serra Do Mar ◽  
Dense Forest ◽  
Species Analysis ◽  
Tree Component

This study aimed to map phytophysiognomies of an area of Ombrophilous Dense Forest at Parque Estadual da Serra do Mar and characterize their floristic composition. Photointerpretation of aerial photographs in scale of 1:35,000 was realized in association with field work. Thirteen physiognomies were mapped and they were classified as Montane Ombrophilous Dense Forest, Alluvial Ombrophilous Dense Forest or Secondary System. Three physiognomies identified at Casa de Pedra streamlet's basin were studied with more details. Riparian forest (RF), valley forest (VF), and hill forest (HF) presented some floristic distinction, as confirmed by Detrended Correspondence Analysis (DCA) and Indicator Species Analysis (ISA) conducted here. Anthropic or natural disturbances and heterogeneity of environmental conditions may be the causes of physiognomic variation in the vegetation of the region. The results presented here may be useful to decisions related to management and conservation of Núcleo Santa Virgínia forests, in general.

scholarly journals Flora y Vegetación de las zonas núcleo de la Reserva de la Biosfera Mariposa Monarca, México

2017 ◽  
pp. 43
Author(s):  
Guadalupe Cornejo-Tenorio ◽  
Alejandro Casas ◽  
Berenice Farfán ◽  
José Luis Villaseñor ◽  
Guillermo Ibarra-Manríquez
Keyword(s):  
Cloud Forest ◽  
Vascular Plant ◽  
Coniferous Forest ◽  
Biosphere Reserve ◽  
Field Work ◽  
Monarch Butterfly ◽  
Oak Forests ◽  
Vegetation Types ◽  
Voucher Specimens ◽  
One Year

A study of the flora and vegetation physiognomy was conducted at the core zones of the Monarch Butterfly Biosphere Reserve, in the states of México and Michoacán. Collection of plant specimens was carried out du ring one year of field work and this activity was supplemented by a review of voucher specimens previously collected in the area and deposited at the Mexican herbaria IEB, EBUM, and MEXU. A total of 423 vascular plant species including 32 infraespecific taxa and grouped in 86 families and 244 genera were identified, Families with the largest species richness were Asteraceae (103), Lamiaceae (21), Fabaceae (17), and Scrophulariaceae (17).The most speciose genera were Salvia (13), Stevia (8), and Ageratina (7). Mexican endemic species comprised 135 (31.9%) species, which included 13 infrae spec ific taxa; 40 of these species belong to Asteraceae. Herbs were represented by 326 species, followed by shrubs (5 1) and trees (33). The main vegetation types recognized were coniferous forest (including combinations of fir, pine, and oak forests), cloud forest, anthropogenic grass land, and Quercus forest.

scholarly journals Retracted: Pierced Salt Domes in the Persian Gulf and in the Zagros Mountain Ranges in Southern Iran and their Relationship to Hydrocarbon and Basement Tectonics

2013 ◽  
Vol 2 (10) ◽  
pp. 116-133
Author(s):  
Hamid Reza Samadi
Keyword(s):  
Persian Gulf ◽  
Field Work ◽  
Aerial Photographs ◽  
Zagros Mountain ◽  
Mountain Ranges ◽  
Salt Domes ◽  
Southern Iran ◽  
Geological Processes ◽  
Basement Faults ◽  
The Persian Gulf

The most enigmatic problems with the nearly 200 salt domes pierced in the Persian Gulf and in the Zagros Mountain Ranges (ZMR) in southern Iran, a unique morphology in the world, have been the matter of this study, which is based on a combination of field work, enhancement of satellite and aerial photographs etc. In the ZMR, structural anomalies are frequently associated with similar facies distribution patterns. In the eastern portion of the region, emergent salt plugs of Infra-Cambrian age exhibit the same alignment patterns. Such trends bear no apparent genetic relationship to the Tertiary folding responsible for the present Zagros fold belt, but rather indicate their affinity with linear basement features which are readily observable on Land sat imagery and aerial photographs. Bending of anticlines in the competent cover rock, combined with minor strike-slip faults and horizontal displacements of parts of folded structures, strongly point to the presence of these basement faults. The salt plugs, which have pierced cover rocks of up to 10000 m thick, are distributed on the Arabian Platform along regional basement faults. The area of diapir outcrops is bounded by the Oman Line to the east and by the Kazerun fault to the west. Pieces of the basement have been brought up to the surface on some of the salt domes. The fragments were transported by rotational ascent of the Hormuz Salt Formation to the present and former land surfaces. The recognition of features related to basement tectonics and realization of their implication in the control and modification of geological processes are important adjuncts to the search for hydrocarbon accumulations in this region. To our best knowledge, data of basement faults in the study area are scarce. Therefore, this study was carried out to determine basement faults and their relation to salt dome distribution. Considering the fold axes bending, the trend of the salt plugs and also the distribution of epicenters of the last century, n umerous new basement faults are introduced in this paper.

scholarly journals ЕКОЛОГО-ЦЕНОТИЧНА СТРУКТУРА ФЛОРИ ЗАКАРПАТСЬКОЇ РІВНИНИ

2019 ◽  
Vol 77 (3) ◽  
pp. 6-12
Author(s):  
O. V. Pryhara
Keyword(s):  
Vascular Plants ◽  
Vegetation Types ◽  
Meadow Steppe ◽  
Ruderal Vegetation ◽  
Zonal Vegetation ◽  
Genetic Types ◽  
Edaphic Conditions ◽  
Leading Position ◽  
The Right ◽  
Black Mountain

The Transcarpathian plain is the northeastern part of the large Middle Danube lowland in the Transcarpathian region. The length of the plain is 80–90 km, the width is 22–23 km, the height is 102–120 m asl. Within the Transcarpathian plain stands out the Berehiv hills, represented by single volcanic mountains of 300-500 m altitude (Black Mountain – 568 m asl, Shalanka – 372 m asl. and other). The Transcarpathian plain is located mainly on the right bank of the Tisza River. Soil-forming rocks are mostly acidic. The climate of the Transcarpathian plain is humid, temperate and continental. The spontaneous flora of the Transcarpathian plain consists of 1209 species of higher vascular plants. Depending on the ecological and coenotic affiliation of flora species to the main zonal vegetation types, seven florencoenotypes were identified in the territory of the studied region: 1) Immoral (Nemoralophyton) – 375 coenoelements (33.33% of the total number of species). In the composition of the Nemoralophyton the florencoenosvites are distinguished: a) oak-hornbeam (Querceto-carpinetophytum) – 130 coenoelements (10.75%); b) helio-quercetal (Quercetophytum) – 171 coenoelements (14.14%); c) fagetal (Fagetophytum) – 74 coenoelements (6.12%); 2) Meadow (Pratophyton) – 220 coenoelements (18.2%). As a part of the Pratophyton the florencoenosvites are: а) flood-meadow (Humidopratophytum) – 92 coenoelements (8.02%); b) land-meadow (Mesopratophytum) – 132 coenoelements (10.92%); 3) Meadow-steppe (Prato-Steppophyton) – 164 coenoelements (13.56%); 4) Xerothermic shrub (Xerothamnophyton) – 32 coenoelements (2.65% ); 5) Marsh (Paludophyton) – 31 coenoelements (2.56%); 6) Hygro-hydrophilic (Hyhro-Hydrophyton) – 129 coenoelements (10.67%). As a part of the Hygro-Hydrophyton the florencoenosvites are: a) coastal-water (Hygrophytum) – 79 coenoelements (6.53%); b) aqueous (Hygrophytum) – 50 coenoelements (4.13%); 7) Synanthropic (Synantropophyton) – 285 coenoelements (23.57%). In the composition of the Syntantropophyton the florencenosvites are as follows: a) vegetative vegetation (Segetalophytum) – 132 coenoelements (10.92%) and b) ruderal vegetation (Ruderalophytum) – 153 coenoelements (12.65%). The results of the analysis of the ecological-coenotic structure of the flora of the Transcarpathian plain showed that the leading position is occupied by species of the immoral florenceonotype (Nemoralophyton) (with the predominance of the helio-quercetal florencoenosvita (Quercetophytum); meadow (Pratophyton) (with the predominance of land-meadow florencoenosvita (Mesopratophytum) and meadow-steppe (Prato-Steppophyton) florencoenotypes. The distribution of species by major ecological-coenotic groups reflect the features of the main genetic types of vegetation, climatic, edaphic conditions and terrain of the territory under study

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