The alpine flora of Teresa Island, Atlin Lake, B.C., with notes on its distribution

1977 ◽  
Vol 55 (10) ◽  
pp. 1399-1409 ◽  
Author(s):  
Steven C. Buttrick
Keyword(s):  
British Columbia ◽  
Relative Abundance ◽  
Research Program ◽  
Vascular Plants ◽  
Environmental Gradients ◽  
Local Distribution ◽  
Habitat Types ◽  
Alpine Habitat ◽  
Alpine Zone ◽  
Provincial Park

A comprehensive inventory of the vascular plants is provided for the alpine zone of Teresa Island in Atlin Provincial Park, British Columbia. A total of 161 taxa were identified from collections made during a research program conducted in the summers of 1974, 1975, and 1976. Of these taxa Arnica louiseana var. frigida, Draba lactea, Lupinus kuschei, Oxytropis huddelsonii, Poa lettermanii, Senecio sheldonensis, Senecio yukonensis, and Stellaria longipes var. edwardsii have a restricted or otherwise interesting distribution in British Columbia.Preliminary observations indicate that the local distribution of all the taxa is controlled by three environmental gradients: snow duration, moisture, and topography. Five different alpine habitat types are recognized as a result of different combinations of these gradients. These habitat types are (1) fell-fields and boulder fields, (2) meadows and shrub fields, (3) snow beds, (4) seepage sites, and (5) drainage areas. The habitat types and relative abundance of each taxon are listed.

The lichen, bryophyte, and vascular plant flora and vegetation of the Landing Lake area, Prince Patrick Island, Arctic Canada

1975 ◽  
Vol 53 (8) ◽  
pp. 719-744 ◽  
Author(s):  
Charles D. Bird
Keyword(s):  
North America ◽  
Relative Abundance ◽  
Vascular Plants ◽  
Plant Material ◽  
Vascular Plant ◽  
Peat Moss ◽  
Lake Area ◽  
Habitat Types ◽  
Southeastern Part ◽  
First Time

The relative abundance and ecology of 123 lichens, 12 liverworts, 1 peat moss, 59 mosses, and 40 vascular plants are described from the southeastern part of Prince Patrick Island, 76° N latitude. One hundred and three of the lichens, 25 of the bryophytes, and 6 of the vascular plants are first reports for the island. One lichen, Blastenia arctica, is reported for the first time from North America. One hundred and seventy of the species were found on the ground, 51 on rock, 9 on decaying plant material, 9 on bone, 5 on fossil wood, 4 on caribou dung, and 2 on mosses. Sixteen habitat types are described, based upon a relevé analysis of 31 different sites. A percentage of the lichens (95.1%), of the bryophytes (95.8%), and of the vascular plants (60.0%) encountered have a Circumpolar distribution. A percentage of the lichens (3.3%), of the bryophytes (1.4%), of the vascular plants (22.5%) have an American distribution. Eight species have an Amphi-Beringian distribution: lichens, 1.6%; bryophytes, 1.4%; vascular plants, 12.5%. One bryophyte (1.4%) and two vascular plants (5.0%) have an Amphi-Atlantic distribution.

scholarly journals Effects of habitat types and within lake environmental gradients on the diversity of chironomid assemblages

Limnologica ◽  
2015 ◽  
Vol 53 ◽  
pp. 26-34 ◽  
Author(s):  
Diána Árva ◽  
András Specziár ◽  
Tibor Erős ◽  
Mónika Tóth
Keyword(s):  
Environmental Gradients ◽  
Habitat Types ◽  
Chironomid Assemblages

Vascular plants distribution in relation to topography and environmental variables in alpine zone of Kedarnath Wild Life Sanctuary, West Himalaya

2018 ◽  
Vol 15 (9) ◽  
pp. 1936-1949
Author(s):  
Sudeep Chandra ◽  
Ankit Singh ◽  
C. P. Singh ◽  
M. C. Nautiyal ◽  
L. S. Rawat
Keyword(s):  
Environmental Variables ◽  
Vascular Plants ◽  
Alpine Zone ◽  
West Himalaya ◽  
Wild Life

scholarly journals The genus Hebeloma in the Rocky Mountain Alpine Zone

MycoKeys ◽  
2019 ◽  
Vol 46 ◽  
pp. 1-54 ◽  
Author(s):  
Cathy Cripps ◽  
Ursula Eberhardt ◽  
Nicole Schuetz ◽  
Henry Beker ◽  
Vera Evenson ◽  
...  
Keyword(s):  
Northern Hemisphere ◽  
Recent Progress ◽  
Rocky Mountain ◽  
Molecular Data ◽  
Morphological Features ◽  
Its Sequencing ◽  
Alpine Ecology ◽  
Alpine Habitat ◽  
Alpine Zone ◽  
Alpine Habitats

Numerous taxa ofHebelomahave been reported in association withSalix,Dryas, andBetulain arctic-alpine habitats. However, species are notoriously difficult to delineate because morphological features overlap, and previously there was little reliable molecular data available. Recent progress in ITS-sequencing within the genus, coupled with an extensive database of parametrically described collections, now allows comparisons between species and their distributions. Here we report 16 species ofHebelomafrom the Rocky Mountain alpine zone from some of the lowest latitudes (latitude 36°–45°N) and highest elevations (3000–4000 m) for arctic-alpine fungi in the northern hemisphere. Twelve of these species have been reported from arctic-alpine habitats in Europe and Greenland and are now molecularly confirmed from the Middle and Southern Rockies, greatly expanding their distribution. These are:Hebelomaalpinum,H.aurantioumbrinum,H.dunense,H.hiemale,H.marginatulum,H.mesophaeum,H.nigellum,H.oreophilum,H.subconcolor,H.spetsbergense,H.vaccinum, andH.velutipes. Hebelomahygrophilumis known from subalpine habitats in Europe, but was never recorded in arctic-alpine ecology. Three species recorded from the Rockies, but as yet not reported from Europe, areH.alpinicola,H.avellaneum, andH.excedens. The last two have never previously been reported from an arctic-alpine habitat. For all three of these species, the holotypes have been studied morphologically and molecularly, and have been incorporated into the analysis.

scholarly journals Hyperpycnites within the Devonian-Carboniferous flysch of the Carpatho-Balkanides (Kostadinovica, eastern Serbia)

2020 ◽  
Vol 73 (3) ◽  
pp. 131-142
Author(s):  
Miloš Radonjić ◽  
Keyword(s):  
Marine Environment ◽  
Relative Abundance ◽  
Vascular Plants ◽  
Early Carboniferous ◽  
Fossil Plants ◽  
Plant Debris ◽  
Material Support ◽  
Fossil Material ◽  
Proposed Model ◽  
Depositional Setting

This study presents new discoveries of vascular plants and the trace fossil Dictyodora liebeana (GEINITZ) from the Devonian–Carboniferous Kučaj-Zvonce flysch of the Carpatho-Balkanides and the implications of this fossil association for its sedimentary setting. The occurrence of the described plant debris in a deep-marine environment indicates the presence of hyperpycnites within the siliciclastic turbidites exposed at the Kostadinovica locality. The sedimentological data and the characteristics of the fossil material support the proposed model in which the sediment was at least partially transported by hyperpycnite currents. Furthermore, based on the assessment to similar palaeofloras from comparable formations, the age of the fossil plants can be determined as Early Carboniferous. This can be used as an additional biostratigraphic criterion given the relative abundance of vascular plants in other localities of the Kučaj-Zvonce flysch described in previous studies. The age and the depositional setting of the succession is further better constrained by the first observation of Dictyodora liebeana (GEINITZ) in the Carpatho-Balkanides of Serbia.

scholarly journals Flora and Vegetation of the Island of Kalamos (Ionian Sea, Greece) – Floristic Analysis and Phytogeographical Aspects

Hacquetia ◽  
2015 ◽  
Vol 14 (2) ◽  
pp. 307-318 ◽  
Author(s):  
Evagelos Baliousis
Keyword(s):  
New Records ◽  
Ionian Sea ◽  
Vegetation Types ◽  
Local Distribution ◽  
Habitat Types ◽  
Rare Taxa ◽  
Floristic Analysis ◽  
Infraspecific Taxa ◽  
Ionian Island ◽  
First Time

Abstract The floristic investigation of the Ionian island of Kalamos resulted in the addition of 275 specific and infraspecific taxa, which are reported here, to a present total of 502 taxa. For each newly recorded taxon local distribution and habitat types are presented. Convolvulus pentapetaloides and Malcolmia graeca subsp. hydraea are reported for the first time from the Ionian islands. Some of the new records concern rare taxa in Greece or regional endemics, which are, therefore, chorologically significant, such as Alkanna corcyrensis, Stachys ionica, Heptaptera colladonioides. A brief description of some of the vegetation types of the island is given. The results of floristic analysis and phytogeographical aspects demonstrate the pronounced Mediterranean character of the island’s flora.

Responses of plant functional types to environmental gradients in the south-west Ethiopian highlands

2011 ◽  
Vol 27 (03) ◽  
pp. 289-304 ◽  
Author(s):  
Desalegn Wana ◽  
Carl Beierkuhnlein
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Relative Abundance ◽  
Environmental Variables ◽  
Environmental Gradients ◽  
Plant Functional Types ◽  
The South ◽  
Ethiopian Highlands ◽  
South West ◽  
Functional Types

Abstract:Plant functional types across environmental gradients can be considered as a powerful proxy that reveals vegetation–environment relationships. The objectives of this study were to investigate the response in the relative abundance of plant functional types along altitudinal gradients and to examine the relationship of plant functional types to environmental variables. The study was conducted in the Gughe-Amaro Mountains, in the south-west Ethiopian highlands. We established 74 plots with an area of 400 m2(20 × 20 m) each along altitudinal ranges between 1000 and 3000 m asl. Data on site environmental conditions and on the abundance of plant functional types were analysed using the constrained linear ordination technique (RDA) in order to identify the relationships between plant functional types and environmental variables. Altitude, soil organic carbon, soil sand fraction and surface stone cover were significantly related to the relative abundance of plant functional types across the gradient. Tussocks and thorns/spines were abundant in lower altitudinal ranges in response to herbivory and drought while rhizomes and rosettes were abundant at higher altitudes in response to the cold. Generally our results show that topographic attributes (altitude and slope) as well as soil organic carbon play an important role in differentiating the relative abundance of plant functional types in the investigated gradient. Thus, considering specific plant functional types would provide a better understanding of the ecological patterns of vegetation and their response to environmental gradients in tropical regions of Africa prone to drought.

Degrees of Intimacy

2002 ◽  
Author(s):  
David Ehrenfeld
Keyword(s):  
United States ◽  
British Columbia ◽  
Adult Male ◽  
Western United States ◽  
Horseback Riding ◽  
The Past ◽  
Garibaldi Provincial Park ◽  
Walking Stick ◽  
Provincial Park

When we arrived in Vancouver at the start of our vacation, the tabloid headline at the newspaper stand caught our attention. “World’s Bravest Mom,” it shrieked. We stopped to read. The story was simple; it needed no journalistic embellishment. Dusk, August 19, 1996. Mrs. Cindy Parolin is horseback riding with her four children in Tulameen, in southern British Columbia’s Okanagan region. Without warning, a cougar springs out of the vegetation, hurtling at the neck of one of the horses. In the confusion, Steven Parolin, age six, falls off his horse and is seized by the cougar. Mrs. Parolin, armed only with a riding crop, jumps off her horse and challenges the cougar, which drops the bleeding child and springs at her. Ordering her other children to take their wounded brother and go for help, Mrs. Parolin confronts the cougar alone. By the time rescuers reach her an hour later, she is dying. The cat, shot soon afterward, was a small one, little more than sixty pounds. Adult male cougars can weigh as much as 200 pounds, we learn the next day from the BC Environment’s pamphlet entitled “Safety Guide to Cougars.” We are on our way to Garibaldi Provincial Park, where we plan to do some hiking, and have stopped in the park head-quarters for information. “Most British Columbians live all their lives without a glimpse of a cougar, much less a confrontation with one,” says the pamphlet, noting that five people have been killed by cougars in British Columbia in the past hundred years. (Actually, the number is now higher; cougar attacks have become increasingly common in the western United States and Canada in recent years.) “Seeing a cougar should be an exciting and rewarding experience, with both you and the cougar coming away unharmed.”However, the pamphlet notes, cougars seem to be attracted to children as prey, possibly because of “their high-pitched voices, small size, and erratic movements.” When hiking, “make enough noise to prevent surprising a cougar . . . carry a sturdy walking stick to be used as a weapon if necessary,” and “keep children close-at-hand and under control.”

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