scholarly journals Toevoegings tot die blomplantlys van die Bergkwagga Nasionale Park

Koedoe ◽  
1977 ◽  
Vol 20 (1) ◽  
Author(s):  
B.L. Penzhorn
Keyword(s):  
Plant Species ◽  
National Park ◽  
Flowering Plants ◽  
Flowering Plant ◽  
Check List ◽  
Flowering Plant Species

Additions to the check list of flowering plants of the Mountain Zebra National Park. Thirteen additional flowering plant species are reported from the Mountain Zebra National Park, increasing the total reported to 371 species.

scholarly journals The role of flowering plant species in the survival of blackflies (Diptera: Simuliidae) along the lower Orange River, South Africa

Koedoe ◽  
2001 ◽  
Vol 44 (2) ◽  
Author(s):  
E. Myburgh ◽  
H. Bezuidenhout ◽  
E.M. Neville
Keyword(s):  
South Africa ◽  
Plant Species ◽  
Environmental Conditions ◽  
National Park ◽  
Flowering Plant ◽  
Limiting Factor ◽  
Acacia Karroo ◽  
Ziziphus Mucronata ◽  
Flowering Plant Species

This study is an investigation of the role that plants play in the survival of adult blackflies by providing shelter and carbohydrate food. A detailed phenological study of the 29 most abundant plant species in the Augrabies Falls National Park showed that throughout the year the percentage of plant species flowering was remarkably constant. It is therefore unlikely that the availability of carbohydrates would limit adult Simulium survival at any time of the year. Blackflies were recorded feeding on the flowers of Pappea capensis. Acacia karroo, A. mellifera, Tamarix usneoides, Ziziphus mucronata, Scholia afra and Sisyndite spartea. An additional survey showed that another 64 plant species flowered throughout the year, and these can be regarded as potential carbohydrate sources. Blackflies were observed sheltering in dense shrubs and trees that provide protection against predation and harsh environmental conditions. This study suggests that vegetated drainage lines are the means by which adult blackflies survive dispersal away from the river. It is concluded that carbohydrate scarcity cannot be considered a limiting factor to adult blackfly survival along the lower Orange River.

scholarly journals A Check List of Flowering Plants of the Kalahari Gemsbok National Park

Koedoe ◽  
1988 ◽  
Vol 31 (1) ◽  
Author(s):  
N. Van Rooyen ◽  
D.J. Van Rensburg ◽  
G.K. Theron ◽  
J. Du P. Bothma
Keyword(s):  
Plant Species ◽  
National Park ◽  
Life Form ◽  
Flowering Plants ◽  
Check List ◽  
Number Of Species

A check list containing 397 plant species has been compiled for the Kalahari Gemsbok National Park which occupies an area of approximately 9 600 km2. These species represent 191 genera and 51 families. The Monocotyledonae are represented by 98 species (24,7 of the total number of species) and the Dicotyledonae by 299 species (75,3 of the total number of species). According to the life form spectrum the Kalahari Gemsbok National Park is a therophyte-hemicryptophyte area.

scholarly journals Crab spiders (Araneae: Thomisidae) in flowering plants in a Brazilian "Cerrado" ecosystem

2011 ◽  
Vol 71 (2) ◽  
pp. 359-364 ◽  
Author(s):  
LC Rocha-Filho ◽  
IMP Rinaldi
Keyword(s):  
Plant Species ◽  
Flowering Plants ◽  
Flowering Plant ◽  
Floral Resources ◽  
Pollination Syndrome ◽  
Bee Pollination ◽  
Floral Visitors ◽  
Flowering Plant Species ◽  
Crab Spiders ◽  
Poricidal Anthers

Although crab spiders are common in flowering plants, their relations with plant species and its floral traits have been poorly known in the Neotropics. Observations regarding plant habits, floral visitors and also floral characteristics such as anthesis, odour, shape, colour and floral resources were recorded in flowering plant species of an area of "Cerrado" on a 2 km long trail. Misumenops argenteus and Misumenops pallens accounted for 62.86% of the spiders captured on 22 flowering plant species. The plants Senna rugosa (Fabaceae), Styrax ferrugineus (Styracaceae) and Banisteriopsis campestris (Malpighiaceae), hosted, each one, about 10 to 17% of the total spiders collected and these plants had diurnal anthesis, bee-attractive flower colours such as yellow (S. rugosa), white (S. ferrugineus), and pink (B. campestris), poricidal anthers as well as being visited by bees which evidenced bee-pollination syndrome. This study is the first survey regarding crab spiders and their associations with plant species of the "Cerrado".

scholarly journals New records of flowering plants and ferns from the Kalahari Gemsbok National Park

Koedoe ◽  
1997 ◽  
Vol 40 (2) ◽  
Author(s):  
N. Van Rooyen ◽  
H. Bezuidenhout
Keyword(s):  
Plant Species ◽  
National Park ◽  
New Records ◽  
Flowering Plants ◽  
Check List ◽  
Number Of Species ◽  
Supplementary List

A supplementary list of 101 new records of plant species, as well as an updated alphabetical check list comprising a total of 489 plant species, were compiled for the Kalahari Gemsbok National Park. The area covers approximately 9 593 km2. These species rep- resent 214 genera and 55 families. The Pteridophyta is represented by two species (0.4 of the total number of species), the Monocotyledonae by 116 species (23.7 ) and the Dicotyledonae by 371 species (75.9 ).

scholarly journals New records of flowering plants collected from the Phou Khao Khouay National Biodiversity Conservation Area for the flora of Laos

2021 ◽  
Vol 51 (3) ◽  
pp. 305-318
Author(s):  
Chang-Kun LIM ◽  
Kyoung-Eun LEE ◽  
Hyun-Sung CHO ◽  
Veosavanh SAYSAVANH ◽  
Hyosig WON
Keyword(s):  
Biodiversity Conservation ◽  
Plant Species ◽  
New Records ◽  
Lao Pdr ◽  
Flowering Plants ◽  
Flowering Plant ◽  
Botanical Survey ◽  
Conservation Area ◽  
Flowering Plant Species ◽  
Utricularia Gibba

We report 14 species of flowering plants as new additions to the flora of Laos. These are Illex viridis (Aquifoliaceae), Capparis erycibe (Capparaceae), Euphorbia bokorensis (Euphorbiaceae), Exacum darae (Gentianaceae), Aeschynanthus cambodiensis (Gesneriaceae), Tetraphyllum roseum (Gesneriaceae), Utricularia gibba (Lentibulariaceae), Macrosolen brandisianus (Loranthaceae), Decaschistia siamensis (Malvaceae), Nyssa yunnanensis (Nyssaceae), Adenia penangiana var. penangiana (Passifloraceae), Pentaphylax euryoides (Pentaphylacaceae), Wikstroemia bokorensis (Thymelaeaceae), and Debregeasia wallichiana (Urticaceae). We discovered the species during a botanical survey of the Phou Khao Khouay National Biodiversity Conservation Area (PKKNBCA) of Lao PDR in 2015-2019. In addition, nine rarely collected flowering plant species in Laos are newly reported for the PKKNBCA.

scholarly journals An updated insect exclosure design for pollination ecology

2021 ◽  
Vol 29 ◽  
pp. 249-257
Author(s):  
Troy Tetreault ◽  
Ken Aho
Keyword(s):  
Experimental Design ◽  
Plant Species ◽  
Flowering Plants ◽  
Common Method ◽  
Flowering Plant ◽  
High Efficacy ◽  
Scientific Rigor ◽  
Wire Frame ◽  
Flowering Plant Species ◽  
Alpine Environments

Exclosures are a common method for quantifying the effects of animal pollinators on flowering plant species. However, a lack of standardized designs or clear descriptions of previously implemented exclosure designs decreases replicability in pollination studies and reduces scientific rigor. We summarized previous descriptions of pollination exclosure designs, and developed/tested a novel exclosure design in alpine environments on the Beartooth Plateau in northern Wyoming, USA. This exclosure design consists of a cylindrical internal wire frame, integrated ground stakes, and various mesh materials attached to the exterior. Exclosures on the plateau showed high efficacy in inhibiting insects from pollinating flowering plants, and nearly all of these exclosures remained functional throughout the time they were in place. Our updated exclosure design is effective, inexpensive, easy to produce, and widely applicable across differing ecosystems and experimental design types.

The Effects of Integrated Vegetation Management on Richness of Native Compatible Flowering Plants and abundance of Noncompatible Tree Species on a Right-of-Way in Central Pennsylvania, USA

2020 ◽  
Vol 46 (6) ◽  
pp. 395-401
Author(s):  
Carolyn Mahan ◽  
Bradley Ross ◽  
Richard Yahner
Keyword(s):  
Species Richness ◽  
Plant Species ◽  
Plant Species Richness ◽  
Vegetation Management ◽  
Flowering Plants ◽  
Flowering Plant ◽  
Right Of Way ◽  
Central Pennsylvania ◽  
Herbicide Mixtures ◽  
Flowering Plant Species

We examined the effects of integrated vegetation management (IVM) and nonselective mechanical removal techniques (hand cutting and mowing) on the richness and abundance of native compatible flowering plants and noncompatible trees on an electric transmission line right-of-way in central Pennsylvania, USA. Our study focused on native flowering plants to help determine how different vegetation management techniques may affect native wildlife communities. We found no correlation between amount of herbicide applied and native flowering plant species richness or tree abundance. We found that the richness of native flowering plants did not differ between plots treated with an IVM herbicide approach and those that were mechanically treated (t = 1.06, df = 1, p = 0.31). However, mechanically treated plots had significantly higher abundance of trees than IVM plots (t = 3.10, df = 1, p = 0.009). We found that plots that were treated with herbicide mixtures that contained glyphosate in 2012 had lower native flowering plant species richness in 2016 than those treated with herbicide mixtures that did not contain glyphosate (t = −2.44, df = 1, p = 0.04). Our study indicates that long-term IVM approaches support native flowering plant species richness while limiting tree abundance under electric transmission line right-of-way. However, further study is needed to determine if the herbicide type and method (selective versus broadcast) of application affects species richness of native flowering plant communities.

scholarly journals Documentation of flora of Rara lake and adjoining areas in mid-western region of Nepal

2013 ◽  
Vol 21 (1) ◽  
pp. 41-47
Author(s):  
BK Basnet
Keyword(s):  
National Park ◽  
Secondary Data ◽  
Flowering Plant ◽  
Western Region ◽  
Ramsar Site ◽  
Secondary Sources ◽  
Data Field ◽  
Adjoining Area ◽  
Faunal Diversity ◽  
Flowering Plant Species

Rara National Park is the smallest national park of the country. It is rich in floral and faunal diversity. Rara is one of the sacred lakes and is listed as a Ramsar site. The aim of the study was to compile the representative flora of Rara lake and to present status of available vegetation. The research used both primary and secondary sources of data. Field visit was conducted in June, 2010 during which more than 300 plant specimens were collected. The secondary data were collected from Rara and adjoining area like Gamgadi. These data were thoroughly analyzed to understand the composition of vegetation. The study revealed the existence of about 224 flowering plant species in the area, under 173 genera and 67 families. Compositae was found to be the largest family (21 species and 17 genera) followed by Rosaceae (19 species and 10 genera). DOI: http://dx.doi.org/10.3126/banko.v21i1.9063 Banko Janakari, Vol. 21, No. 1 2011; 41-47

scholarly journals A check-list of the flowering plants in the Herbarium of the Mountain Zebra National Park

Koedoe ◽  
1970 ◽  
Vol 13 (1) ◽  
Author(s):  
B. L. Penzhorn
Keyword(s):  
National Park ◽  
Flowering Plants ◽  
Check List

A check-list of the flowering plants in the Herbarium of the Mountain Zebra National Park

scholarly journals Epimutations are associated with CHROMOMETHYLASE 3-induced de novo DNA methylation

eLife ◽  
2019 ◽  
Vol 8 ◽  
Author(s):  
Jered M Wendte ◽  
Yinwen Zhang ◽  
Lexiang Ji ◽  
Xiuling Shi ◽  
Rashmi R Hazarika ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Plant Species ◽  
Dna Methyltransferase ◽  
Constitutive Heterochromatin ◽  
De Novo ◽  
Flowering Plant ◽  
Gene Body ◽  
Gene Body Methylation ◽  
Mechanistic Basis ◽  
Flowering Plant Species

In many plant species, a subset of transcribed genes are characterized by strictly CG-context DNA methylation, referred to as gene body methylation (gbM). The mechanisms that establish gbM are unclear, yet flowering plant species naturally without gbM lack the DNA methyltransferase, CMT3, which maintains CHG (H = A, C, or T) and not CG methylation at constitutive heterochromatin. Here, we identify the mechanistic basis for gbM establishment by expressing CMT3 in a species naturally lacking CMT3. CMT3 expression reconstituted gbM through a progression of de novo CHG methylation on expressed genes, followed by the accumulation of CG methylation that could be inherited even following loss of the CMT3 transgene. Thus, gbM likely originates from the simultaneous targeting of loci by pathways that promote euchromatin and heterochromatin, which primes genes for the formation of stably inherited epimutations in the form of CG DNA methylation.

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