scholarly journals Rare Plants of Bryce Canyon National Park, Utah

1991 ◽  
Vol 15 ◽  
pp. 61-63
Author(s):  
Frederick Peabody
Keyword(s):  
Plant Species ◽  
Rare Species ◽  
National Park ◽  
Rare Plants ◽  
Literature Survey ◽  
The State ◽  
Science Department ◽  
Additional Species ◽  
Brigham Young University ◽  
Field Season

A literature survey has been completed in order to determine plant species that have been considered rare, and also plant species that are potentially rare. Dr. Stan Welsh of the Botany and Range Science Department of Brigham Young University (Provo, Utah) was contacted personally during the field season. His experience in the region has provided a list of additional species that are considered rare for the state of Utah and occur on specific sites near the National Park (Table 1). It is possible that these additional rare species may occur within the boundaries of the park.

scholarly journals Rare Plants of Bryce Canyon National Park

1992 ◽  
Vol 16 ◽  
pp. 49-52
Author(s):  
Frederick Peabody
Keyword(s):  
Plant Species ◽  
National Park ◽  
Rare Plants ◽  
Literature Survey ◽  
Original Proposal

The list of rare and potentially rare plants in Bryce Canyon National Park was refined. A literature survey has been completed in order to determine plant species that have been considered rare, and also plant species that are potentially rare. Refer to original proposal for citations.

scholarly journals ОСОБЛИВОСТІ СТЕПОВИХ ЕКОСИСТЕМ НАЦІОНАЛЬНОГО ПРИРОДНОГО ПАРКУ «КРЕМЕНЕЦЬКІ ГОРИ», ЇХ ЗБЕРЕЖЕННЯ ТА ВІДТВОРЕННЯ

2019 ◽  
Vol 75 (1) ◽  
pp. 94-99
Author(s):  
М. Shtogrin ◽  
L. Onuk ◽  
A. Shtogun ◽  
I. Bobrik
Keyword(s):  
Rare Species ◽  
Field Research ◽  
Rare Plants ◽  
The State ◽  
Meadow Steppe ◽  
Steppe Species ◽  
Natural Park ◽  
Steppe Ecosystems ◽  
Nature Park ◽  
Management Project

Steppe areas of the National Natural Park "Kremenets Mountains" occupy the minimum area in open hills and rocky niches, so the priority tasks are the protection of unique steppe ecosystems.Reproduction of steppe areas is one of the tasks aimed at preserving the diversity of steppe and petrophytic flora, the structure of cenoses in the steppe regions, as well as the habitats of rare steppe plants.The work is based on field research materials conducted during 2012-2018 on the territory of the National Natural Park "Kremenets Mountains". In the course of research, literary data and geo-botanical studies of the Strahov, Vovcha, Sokolina, Maiden cliffs and Zamkov mountains have been processed, flora and phytocenotic features of steppe and meadow-steppe phyto groups, the state and structure of rare species populations have been described.Characterized by the laws of distribution of steppe and meadow-steppe species of plants on the territory of the National Nature Park "Kremenets Mountains". The influence of natural conditions is described, factors which contribute to the decrease in the number of populations of these species are determined. The measures on preservation and reproduction of steppe ecosystems, preservation of the diversity of steppe and petrophytic flora, and the structure of the cenosis of the steppe regions are presented. The age structure of Adonis vernalis L., which grows on the Malyatyn and Vovchyna rivers, is studied.In order to preserve the populations of the listed rare steppe plant species, active measures have been taken within the framework of the National Natural Park "Kremenets Mountains", which consists in reducing the anthropogenic impact and restoring the settlement of rare species. According to the Territory Management Project, the state of afforestation of steppe areas is monitored, shrubs, undergrowth of trees and invasive herbaceous plants (in particular, Solidago canadensis L.) are cleared with which the steppe areas spontaneously grow; some measures are taken to increase the number of rare plants (repatriation).This will promote the expansion of steppe areas, the increase of the proportion of steppe and meadow species in the grassland and increase the area under the populations of individual rare species.

scholarly journals Rare component of Halych National Nature Park forest ecosystems flora (Ivano-Frankivsk region)

2021 ◽  
Vol 16 (4) ◽  
pp. 290-302
Author(s):  
Dmytrash-Vatseba I.I. ◽  
Shumska N.V. ◽  
Gniezdilova V.I.
Keyword(s):  
Plant Species ◽  
Rare Species ◽  
Forest Ecosystems ◽  
Vascular Plant ◽  
Rare Plants ◽  
Occurrence Rate ◽  
Population Number ◽  
Vascular Plant Species ◽  
General Number ◽  
Nature Park

The paper contains a synopsis of rare component of flora of Halych National Nature Park forest ecosystems, as well as evaluation of distribution trends of rare vascular plant species and the state of their populations. Being established in 2004, the Park is located in Halych district of Ivano-Frankivsk region on the area of 14684.8 ha. Forests occupy the biggest part of its territory (81.1 %), among which predominate poor and mixed oak (Querceta roboris), beech (Fageta sylvaticae) and hornbeam (Carpineta betuli) woods. Inventory check of plant cover of the forest ecosystems has been done between 2008-2019 years. According to the results of our study, within the forests and forest margins grow 303 vascular plant species, out of which 63 are rare (20.8 %). The list of rare species is composed of species included to the Red Data Book of Ukraine, of species protected by international conventions and directives and complemented by species that are threatened within the study region. Species were considered as threatened if the number of localities and / or population size were small. Regionally rare species were selected based on the analyzes of results of our field survey and materials of herbarium collections. We have found that the third part of rare species (33.3 %) has high coenotic amplitude and a bit less species (26.2 %) favor forest margins. Rare species having low coenotic amplitude are confined to beech woods (19.1 %). Rare species are considerably distinguished by occurrence. Species with scarce occurrence predominate. For instance, 61 % of the species were found in 1-5 localities, of which 25 species occur only in one or two sites. Share of species growing in 6-10 localities within the Park is equal to 26.6 %. Only a small percentage (6.2 %) of rare species comprises species with relatively frequent occurrence (11–20 localities as well as more than 20 cites). Rare species of the Park forests with the highest occurrence rate are Lilium martagon and some members of Orchidaceae family. Predominantly, rare species have populations of small size, for instance, 81.2 % of the species were found in quantities of a few plants – several hundreds of individuals. The most threatened are species general number of which at the Park area is several plants (15.6 %). These species are as follows: Circaea alpina, Atropa bella-donna, Campanula latifolia, Phyteuma spicatum, Epipactis atrorubens etc. The biggest groups comprise species with general number of few tens and several hundreds of individuals (totally 65.6 %). Species with big populations represent far smaller part of forest rare species. Nine rare species grow in the number of several thousands of plants within the Park and three species (Allium ursinum, Galanthus nivalis and Leucojum vernum) – over a million. It has been established that 52.4 % of rare species populations taken together remain in critically bad state, 28.6 % of the populations – in bad state, 14.3 % – in satisfactory state. Only 4.8 % of populations are in good state. Our results show that about 95 % of species are in need of protection and continuous monitoring of population number. Furthermore, 51 species of rare plants,having low number and bad state of populations, require to work out and implement management plans for their restoration. Key words: rare species, vascular plants, population state, species occurrence, population number

scholarly journals Rare plant restoration on Long Pine Key

Lankesteriana ◽  
2015 ◽  
Vol 7 (1-2) ◽  
Author(s):  
Bruce Holst ◽  
Stig Daltröm
Keyword(s):  
United States ◽  
Plant Species ◽  
National Park ◽  
The State ◽  
South Florida ◽  
Everglades National Park ◽  
Rare Plant ◽  
Critical Habitat ◽  
Rare Plant Species ◽  
Plant Restoration

The Long Pine Key area of Everglades National Park (Florida) is critical habitat for a large number of rare plant species including two candidates for federal listing and several dozen listed as endangered or threatened by the state of Florida. In addition, there are nineteen species present in the Long Pine Key area that are critically imperiled in South Florida and six species historically documented from the area that may be extinct in the continental United States (Gann et al., 2002). 

scholarly journals Composition, Distribution, Relative Abundance and Habitat Requirements of Endangered, Threatened and Rare Species to Southeast Utah Groups

1991 ◽  
Vol 15 ◽  
pp. 29-33
Author(s):  
Ken Heil ◽  
Lisa Floyd-Hanna
Keyword(s):  
Plant Species ◽  
Relative Abundance ◽  
Rare Species ◽  
National Park ◽  
Habitat Requirements ◽  
Rare Plant ◽  
Composition Distribution ◽  
Rare Plant Species ◽  
The Third

This was the third year of a four year investigation on the composition, distribution, relative abundance and habitat requirements of endangered, threatened, and rare plant species in the Southeastern Utah National Park Complex.

scholarly journals Distribution of Littoral Macrophytes in Jackson Lake, Wyoming

1983 ◽  
Vol 7 ◽  
pp. 73-76
Author(s):  
C. Brewer ◽  
M. Parker
Keyword(s):  
Plant Species ◽  
National Park ◽  
Structure And Function ◽  
Distribution Data ◽  
Grand Teton National Park ◽  
Littoral Habitat ◽  
Macrophyte Community ◽  
Field Season ◽  
Relative Abundances ◽  
And Function

The research described here is part of a 2-year study to characterize the structure and function of the littoral macrophyte community in Jackson Lake, Grand Teton National Park. The objectives for the 1st year were: 1) to identify the plant species occuring in the lake; 2) to quantify their relative abundances; 3) to characterize the littoral habitat, and; 4) to construct a detailed map of macrophyte distribution. Data collected during the first field season will be used to help evaluate results of experiments conducted during year two on mechanisms affecting macrophyte segregation.

scholarly journals Geographical Analysis of the Distribution and Spread of Exotic Plant Species in Grand Teton National Park, Wyoming

1998 ◽  
Vol 22 ◽  
pp. 3-12
Author(s):  
Deborah Kurtz ◽  
Richard Aspinall ◽  
Katherine Hansen
Keyword(s):  
Exotic Species ◽  
Plant Species ◽  
National Park ◽  
National Park Service ◽  
Exotic Plants ◽  
Rare Plants ◽  
Exotic Plant ◽  
Exotic Plant Species ◽  
Grand Teton National Park ◽  
Park Service

The effects of introduced exotic species in natural environments are becoming important issues in conservation biology and natural resource management and recent scientific literature reveals increasing concern regarding the spread of invasive exotic plant species (Allen, 1996; Vitousek et al. 1996; Walker and Smith, 1997). Ecological consequences of these species include increased competition for space, water, and nutrients with native plants (which could result in a decrease in biodiversity), decreased forage quality for native ungulates, and changes in the microenvironments where the establishments took place (Woods, 1997). Sheley et al (1998) list several ecologically and economically detrimental impacts of exotic species. The National Park Service recognizes the need to protect ecosystems from exotic species (National Park Service, 1997) through management based on the ability to predict species distributions and spread, and monitoring in areas that are most susceptible to invasion. Recommended strategies for preventing the spread of exotic species include developing an early warning system to identify and eradicate new infestations of exotic plants in National Parks, and continued inventory and monitoring of exotic plants (National Park Service, 1997). These strategies will be based on assessment of the distribution and spread of exotic plants (National Park Service, 1997) using remote sensing and Geographic Information Systems (GIS) technologies for mapping and monitoring exotic plants, and models to predict the invasiveness and spread of exotic plants. In Grand Teton National Park (GTNP), exotic species are a great concern for park managers (National Park Service, 1997). Of the 1000 species of flowering plants within GTNP, there are also four (possibly five) rare plants that may be threatened as a result of competition with exotics (Wyoming Rare Plant Technical Committee, 1994): Draba borealis (Boreal draba), Epipactis gigantea (Giant helleborine), Lesquerella carinata var. carinata (Keeled bladderpod), Lesquerella paysonni (Payson's bladderpod), and possibly Draba densifolia var. apiculata (Rockcress draba). The continued survival of these sensitive plants in GTNP increases the need for management of exotic plants. GTNP has implemented a classification system for exotic plant species that consists of three priority levels (GTNP, 1997a). Priority 1 species are designated as "noxious" since they are capable of invading natural ecosystems and disrupting or displacing native vegetation. Currently, there are thirteen exotic plant species with a Priority 1 status within GTNP (Table 1 ).

scholarly journals Perceptions of local populations on the state of phytodiversity in the subwatershed of Kossi river in the municipalities of Dassa-Zoumé and Glazoué in the Center of Benin

2021 ◽  
Vol 14 (9) ◽  
pp. 3200-3214
Author(s):  
Florent Essin Dissou ◽  
Jacques Boco Adjakpa ◽  
Peter D.M. Weesie
Keyword(s):  
Land Use ◽  
Statistical Analysis ◽  
Plant Species ◽  
Rare Species ◽  
Temporal Dynamics ◽  
The State ◽  
Species Loss ◽  
Local Populations ◽  
Bassin Versant ◽  
Over Time

In Africa, since several decades a rarefaction of many plant species because of their daily use by people can be observed. This study which was conducted in the subwatershed of the Kossi River aims to collect peasant perceptions about the state of phytodiversity. The data were collected through an individual survey in 10 villages with 492 households. The software CAP version 2.15. and R version 3.3.3. were used for the statistical analysis. In total, 94 species belonging to 83 genera and 38 families were identified. The dominant genera are Ficus, Ocimum, Acacia and Blighia. Forty-six (46) species of the listed species (48.94%) are currently rare and 9 species (19.57%) of those rare species are threatened in Benin. Value of importance (IV) of activity and the consensus value (UCs) of the choice of activity show that logging, agriculture and breeding have greatest influence on species loss. This study gives information on the most used species by the populations and those we can select for reforestation campaigns. As a perspective, a work on the temporal dynamics of the land use units of this sub-basin will be done to better appreciate their evolution over time. En Afrique, on assiste depuis plusieurs décennies à la raréfaction de plusieurs espèces végétales du fait de leur utilisation quotidienne par les populations. La présente étude conduite dans le sous-bassin versant de la rivière Kossi vise à recueillir les perceptions des populations locales sur l’état de la phytodiversité. Les données ont été collectées à travers une enquête individuelle dans 10 villages auprès de 492 ménages. Les logiciels CAP version 2.15. et R version 3.3.3. ont été utilisés pour les analyses statistiques. Au total, 94 espèces reparties en 83 genres et 38 familles ont été recensées. Les genres dominants sont Ficus, Ocimum, Acacia et Blighia et les familles les mieux représentées sont les Caesalpiniaceae, les Papilionaceae et les Combretaceae. Quarante-six des espèces recensées (48,94%) sont actuellement rares et 9 de ces espèces rares (19,57%) sont menacées au Bénin. La Valeur d’Importance (IV) de l’activité et la valeur consensuelle (UCs) du choix de l’activité ont révélé que l’exploitation forestière, l’agriculture et la transhumance sont les principaux facteurs responsables de cette raréfaction. Cette étude renseigne sur les espèces les plus utiles pour les populations et celles à apporter en cas d’enrichissement. Comme perspective, la dynamique temporelle des unités d’occupation du sol de ce sous-bassin sera abordée pour mieux apprécier leur évolution dans le temps.

scholarly journals Evaluation of Themeda triandra as an indicator for monitoring the effects of grazing and fire in the Bontebok National Park

Koedoe ◽  
2010 ◽  
Vol 52 (1) ◽  
Author(s):  
Peter Novellie ◽  
Tineke Kraaij
Keyword(s):  
Species Diversity ◽  
Plant Species ◽  
National Park ◽  
Rare Plants ◽  
Plant Species Diversity ◽  
Conservation Priority ◽  
Previous Survey ◽  
Survey Period ◽  
Themeda Triandra ◽  
Unintended Outcome

Up until 2004, the burning regime applied in the Bontebok National Park was aimed at maintaining grazing conditions suitable for bontebok (Damaliscus pygargus pygargus). It was, however, not suitable for maintaining plant species diversity, an increasingly urgent conservation priority for the park. Accordingly, the burning regime was changed in 2004 to increase the interval between fires. A possible unintended outcome of the new burning regime is the spread of grazing lawns which is likely to be deleterious for maintaining the diversity of rare plants. Red grass, Themeda triandra, a species often locally abundant in areas preferred by bontebok, is potentially a good indicator of the anticipated change because, although it persists with moderate grazing, it is sensitive to localised intense grazing and will decrease on grazing lawns. To gauge the potential of this indicator, the canopy spread cover, degree of defoliation and inflorescence production of T. triandrawas determined at 13 permanently marked sites in November 2005. The results are compared with a survey conducted 20 years previously (October–November 1984 and October–November 1985) using similar methodology. The results suggest that T. triandra remained abundant over the previous 20 years’ application of the prior burning regime. In 1984–1985, defoliation of T. triandra was high within 1 year after a fire but declined quickly thereafter. In 2005, the tendency for the defoliation level to decline with increasing time after a fire was still apparent, but it was much less marked than in the previous survey period. A likely cause of this was the fact that Cape mountain zebra (Equus zebra zebra) and red hartebeest (Alcelaphus buselaphus caama) were present in 2005 but absent in 1984–1985 and these taller-grass grazers would have contributed to the use of the older veld. Provided it is interpreted together with other monitoring programmes, the use of T. triandra cover and defoliation intensity appears promising as an efficient indicator of some of the potentially deleterious outcomes of the interactions between herbivory and the new burning regime.Conservation implications: The conservation objectives of maintaining (1) large mammal herbivory as an ecological process and (2) plant species diversity may be difficult to reconcile with each other in the highly fragmented renosterveld and lowland fynbos ecosystems. This paper explores a rapid approach to monitoring impacts of bontebok and other grazing ungulates.

scholarly journals ADDITION TO THE FLORA OF THE STATE NATIONAL PARK “BUIRATAU”

2021 ◽  
Vol 31 (1) ◽  
pp. 27-34
Author(s):  
G.F. Pryadko
Keyword(s):  
Plant Species ◽  
National Park ◽  
The State

As a result of analysis of the flora prospectus of the state national park "Buiratau", which appeared in 2011, the absence of 100 plant species identified earlier by us for this area was determined, and 5 species are absent from the list of flora of the Central Kazakhstan uplands (melkosopochnik). A list of these species is given. As a result of the assessment of the rarity of species, it is proposed to include 4 more species in the new edition of the Red Book of Kazakhstan: Allium shaerocephalon, Caragana leucophloea , Rhinactinidia eremophila, Trinia muricata.

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