scholarly journals Diversidad de Orquídeas en el “Parque Nacional Iztaccíhuatl-Popocatépetl” (México) y sus áreas de influencia

Lankesteriana ◽  
2015 ◽  
Vol 7 (1-2) ◽  
Author(s):  
Bárbara Luna-Rosales ◽  
Amadeo Barba-Álvarez ◽  
Rodrigo Romero-Tirado ◽  
Eric Pérez-Toledano ◽  
Olga Perea-Morales ◽  
...  
Keyword(s):  
Plant Development ◽  
National Park ◽  
World Wide ◽  
Development Stage ◽  
Altitudinal Distribution ◽  
Orchid Species ◽  
Different Seasons

Iztaccíhuatl and Popocatépetl National Park is 25,679 ha in size and it comprises the Transmexican Neo-volcanic strip. The floristic wealth of the Park approximately represents 4% of the flora of the country and the Orchidaceae is one of the families of this flora. Mexico has 1400 orchid species including in 159 genera; the importance at a world-wide level of this flora increases when around 900 species exist only in Mexico. In 1996, 25 orchid species were reported for the Park without a field register. These species and their populations can drastically have varied and in some cases disappeared due to the alterations of the habi- tat and to the extraction of the plants of the last decades. In June of 2001 we started the present project which the main objective has been to obtain by means of work in field, the updated listing of the orchid flora of this Park at different seasons of the year, as well as to determine the diversity of species, plant development stage, their altitudinal distribution and abundance. After 5 years of work 39 species have been located, 25 species are new registers to the Park and there were confirm only 14 species of the 1996 listing. 

scholarly journals The dynamics of questing ticks collected for 164 consecutive months off the vegetation of two landscape zones in the Kruger National Park (1988–2002). Part III. The less commonly collected species

2011 ◽  
Vol 78 (1) ◽  
Author(s):  
Gordon J. Gallivan ◽  
Andrea Spickett ◽  
Heloise Heyne ◽  
Arthur M. Spickett ◽  
Ivan G. Horak
Keyword(s):  
National Park ◽  
Development Stage ◽  
Kruger National Park ◽  
Ixodid Ticks ◽  
Limited Information ◽  
Host Seeking ◽  
Haemaphysalis Elliptica ◽  
Questing Ticks ◽  
Landscape Zone

Despite many studies regarding tick ecology, limited information on long-term changes in tick populations exist. This study assessed the long-term population dynamics of the less frequently collected questing ixodid ticks in the Kruger National Park (KNP). From 1988 to 2002, monthly dragging of the vegetation was performed in three habitats (grassland, woodland and gully) at two sites in the KNP (Nhlowa Road, Landscape Zone 17, and Skukuza, Landscape Zone 4). Amblyomma marmoreum and Rhipicephalus evertsi evertsi were collected as larvae most commonly. Most A. marmoreum larvae were collected at Skukuza and numbers peaked from March to July. More R. evertsi evertsi larvae were collected at Nhlowa Road and numbers peaked in summer and in winter, while at Skukuza there was a single peak in spring. Haemaphysalis elliptica, Rhipicephalus simus and Rhipicephalus turanicus were collected as adults most commonly. More Ha. elliptica and R. turanicus were collected at Nhlowa Road than at Skukuza, while R. simus numbers from the two sites were approximately equal. Ha. elliptica were collected most often between February and June, and R. simus and R. turanicus during February and March. All three species were collected more frequently in gullies than in grassland or woodland. Their numbers increased in 1994/1995 following an eruption of rodents, the preferred hosts of the immature stages. The different host-seeking strategies of ticks largely determine the development stage at which they are likely to be collected during vegetation dragging and reflect a complex interaction between ticks, their hosts and the environment.

scholarly journals The Diversity of Epiphytic Wild Orchids in Mallawa Resort Area of Bantimurung Bulusaraung National Park, South Sulawesi, Indonesia

2015 ◽  
Vol 2 (2) ◽  
pp. 28-33
Author(s):  
St. Fatmah Hiola ◽  
Gufran D Dirawan ◽  
Muhammad Wiharto Caronge
Keyword(s):  
Data Collection ◽  
National Park ◽  
Digital Camera ◽  
Species Level ◽  
Orchid Species ◽  
Genus Level ◽  
South Sulawesi

This research aims to report the diversity of epiphytic wild orchids in Mallawa Resort area of Bantimurung Bulusaraung National Park (BBNP), South Sulawesi, Indonesia. Exploration methods were used in this study to search and record epiphyticwild orchids in this area. The technique of data collection comprised taking pictures with a digital camera for documentation and collecting specimens of wild orchids that were unidentified at the site. The identification of orchid species was conducted by matching the morphology and characterization of epiphytic wild orchids with appropriate photographs showing details to enable identification. The results of the study showed that there were 36 species of epiphytic wild orchids to be found in the study area. The identification to species level included 10 species, there were 17 specimens that were identified to genus level, and seven specimens remained unidentified. Sympodial type orchids dominated the suite of native orchids, with 23 species.Keyword: epiphytes, Mallawa Resort, Bantimurung Bulusaraung National Park, wild orchids

scholarly journals AtSYP71 Is Important for Plant Cell Wall Biosynthesis and Stress Adaptation.

2021 ◽  
Author(s):  
Xiaoyue Kou ◽  
Hailong Zhang ◽  
Xiaonan Zhao ◽  
Mingjing Wang ◽  
Guochen Qin ◽  
...  
Keyword(s):  
Cell Wall ◽  
Early Development ◽  
Plant Development ◽  
Plant Cell Wall ◽  
Cell Plate ◽  
Development Stage ◽  
Cell Wall Biosynthesis ◽  
Knockout Mutant ◽  
Wall Structures ◽  
Confocal Images

Abstract Background: SYP71, the plant-specific Qc-SNARE protein, is reported to regulate vesicle trafficking. SYP71 is localized on the ER, endosome, plasma membrane and cell plate, suggesting its multiple functions. Lotus SYP71 is essential for symbiotic nitrogen fixation in nodules. AtSYP71, GmSYP71 and OsSYP71 are implicated in plant resistance to pathogenesis. To date, SYP71 regulatory role on plant development remain unclear.Results: AtSYP71-knockout mutant atsyp71-4 was lethal at early development stage. Early development of AtSYP71-knockdown mutant atsyp71-2 was delayed, and stress response was also affected. Confocal images revealed that protein secretion was blocked in atsyp71-2. Transcriptomic analysis indicated that metabolism, response to environmental stimuli pathways and apoplast components were influenced in atsyp71-2. Moreover, the contents of lignin, cellulose and flavonoids as well as cell wall structures were also altered.Conclusion: Our findings suggested that AtSYP71 is essential for plant development. AtSYP71 probably regulates plant development, metabolism and environmental adaptation by affecting cell wall homeostasis via mediating secretion of materials and regulators required for cell wall biosynthesis and dynamics.

scholarly journals Effects of Environmental Variables on some Physiological Responses of Microtus montanus Under Natural Conditions

1982 ◽  
Vol 6 ◽  
pp. 66-68
Author(s):  
Aelita Pinter
Keyword(s):  
Environmental Variables ◽  
National Park ◽  
Reproductive Activity ◽  
Natural Conditions ◽  
Term Study ◽  
Microtus Montanus ◽  
Long Term Study ◽  
Microtine Rodents ◽  
Different Seasons

Cyclic fluctations in the popu]ation density of rnicrotine rodents have been known since antiquity. However, factors responsible for this phenomenon are not known. The objectives of this long term study are essentially threefold: 1. characterize those environmental variables that might affect Microtus montanus in different seasons of the year; 2. record the growth, maturation and reproductive activity of the voles under natural conditions; and 3. determine the maturational, as well as, the seasonal pelage changes of these rodents. The data resulting from the execution of the above objectives would be correlated in an attempt to determine the causes undedying the multiannual fluctuations in the population density of these microtine rodents in Grand Teton National Park.

Determination of Sites of Special Importance for the Conservation of Threatened Orchid Species in Colombia

2021 ◽  
Vol 42 ◽  
pp. e67589
Author(s):  
Daniela Alba-Patiño ◽  
Fabian Martínez-Hernández ◽  
Juan Francisco Mota Poveda
Keyword(s):  
Natural Resources ◽  
Protected Areas ◽  
Special Importance ◽  
Altitudinal Distribution ◽  
Orchid Species ◽  
Endangered Orchid ◽  
The Andes ◽  
Andes Region ◽  
Selection Of

Colombia is the country with the highest number of orchid species (4270), whose optimal habitat is cold and humid forests. However, the outlook for conservation is alarming, considering that deforestation is causing the loss of millions of hectares of forests. This situation has led to the existence of 206 endangered orchid species. Therefore, this research was conducted to determine Sites of Special Importance for the Conservation of Threatened Orchid Species in Colombia (SSICO), through an analysis of their spatial and altitudinal distribution using various databases, to make a selection of nature reserves on a municipality scale, using Marxan software, and employing relevant parameters (richness, rarity, and IUCN category). Furthermore, the results were later compared with the Protected Areas System, determining their coverage to propose SSICOs. 674 records of the presence of threatened orchids in 277 municipalities were obtained. Urrao, Abrego, and Frontino were the areas with the greatest richness and rarity. Marxan selected 47 municipalities located mostly in the Andes region, and four SSICOs were prioritized, which are located in the Antioquia, Norte de Santander, Nariño and Putumayo provinces. These SSICOs, in addition to being points of great biodiversity, are areas with special socio-economic characteristics that influence the management of natural resources. These areas require timely attention, research, and intervention by environmental authorities because of their importance for conserving orchids and Andes Forests.

scholarly journals A profile of tourists visiting the Kruger National Park

Koedoe ◽  
2004 ◽  
Vol 47 (1) ◽  
Author(s):  
M. Saayman ◽  
E. Slabbert
Keyword(s):  
Market Segmentation ◽  
National Park ◽  
Kruger National Park ◽  
Clear Understanding ◽  
Literature Study ◽  
Tourist Attractions ◽  
Tourism Product ◽  
Different Seasons ◽  
Privately Owned

Due to shrinking budgets for conservation and an increase in the number of government and privately owned parks, it has become very important for parks to determine who the tourists are who visit one of South Africa’s top tourist attractions. The reason for this is that park management and marketers need to focus their efforts to optimise their limited resources. This can only be done once there is a clear understanding of who the market is, where they come from and what they expect. The literature study clearly showed that market segmentation is essential for the effective marketing of a tourism product or destination. Two surveys were conducted, one in 2001 and a follow-up study in 2002, profiling tourists to the Kruger National Park. Different months were chosen to conduct the two surveys in order to get a more comprehensive profile of tourists visiting the park in different seasons.

Flowering of Xanthorrhoea fulva: the Effect of Fire and Clipping

1998 ◽  
Vol 46 (2) ◽  
pp. 241 ◽  
Author(s):  
Jennifer E. Taylor ◽  
Vaughan Monamy ◽  
Barry J. Fox
Keyword(s):  
National Park ◽  
Floral Induction ◽  
New South ◽  
New South Wales ◽  
Seasonal Component ◽  
Flowering Response ◽  
South Wales ◽  
Different Seasons ◽  
Fire Intervals ◽  
Myall Lakes

Xanthorrhoea fulva (A.Lee) Bedford is a dominant plant of wet heath at Myall Lakes National Park, New South Wales, Australia. As for many other members of the genus, fire is the main stimulus for flowering of X. fulva. The stimulus to flowering provided by fire and by crown removal (clipping) of X. fulva was compared in two different seasons and for two different between-fire intervals. The percentage of X. fulva crowns flowering was greater following: (i) summer disturbance when compared with winter disturbance; (ii) short between-fire intervals (3.75 or 5.25 years) when compared with long between-fire intervals (9.3 or 16.9 years); and (iii) burning when compared with clipping. This demonstrates that the stimulus to floral induction in X. fulva is a combination of a seasonal component and crown removal, a component related to the interval since the last fire, and perhaps some other factor(s) not tested for in this study. This variation in flowering response of X. fulva shows the importance of considering immediate and historic characteristics of fire and other disturbances when management decisions are being made.

scholarly journals Livestock depredation and mitigation methods practised by resident and nomadic pastoralists around Waza National Park, Cameroon

Oryx ◽  
2013 ◽  
Vol 47 (2) ◽  
pp. 237-242 ◽  
Author(s):  
Pricelia N. Tumenta ◽  
Hans H. de Iongh ◽  
Paul J. Funston ◽  
Helias A. Udo de Haes
Keyword(s):  
National Park ◽  
Population Declines ◽  
Livestock Depredation ◽  
Nomadic Pastoralists ◽  
Ranging Behaviour ◽  
Key Factor ◽  
Different Seasons ◽  
Interview Survey ◽  
Education And Awareness ◽  
Mitigation Methods

AbstractConflict between humans and lions Panthera leo is a key factor driving population declines of lions in Africa, especially in communal lands and on the edges of small protected areas. We assessed this conflict in Waza National Park, Cameroon, in 2008 through an interview survey. A total of 207 resident and 174 nomadic pastoralists were interviewed. Results indicated high levels of livestock depredation around the Park, with attacks occurring most often at night. Lions were economically a substantial threat accounting for total losses of EUR 100,000 per annum. Per household, resident pastoralists lost one cow and nomadic pastoralists two cows per annum, equating to c. EUR 260 and 520, respectively. To mitigate these losses resident pastoralists used enclosures for nocturnal protection of their livestock more than nomadic pastoralists, who tended to herd livestock more during pasture. Improved mitigation methods pertaining to herding practice, the use of enclosures and the presence of dogs resulted in a reduction of 25% livestock depredation and 50% cattle depredation. These methods could be further improved, however, education and awareness about the ranging behaviour of lions during different seasons and periods of the day is important for all pastoralists. Additionally, park management needs to be improved through effective law enforcement.

scholarly journals NATIONAL NATURE PARK “DZHARYLGATSKYI”

2018 ◽  
pp. 50-53
Author(s):  
V. Getman
Keyword(s):  
Black Sea ◽  
National Park ◽  
Nature Reserve ◽  
Higher Plants ◽  
Sandy Beaches ◽  
Climatic Conditions ◽  
The Black Sea ◽  
International Importance ◽  
Different Seasons ◽  
Migration Corridor

National Natural Park (NPP) “Dzharylgatskyi” was established by Decree of the President of Ukraine from December 11, 2009, on the territory of Skadovsky district of Kherson region. This was preceded by the creation of Dzharylgatskyi botanical reserve of national importance in 1974. According to the physical-geographical zoning of Ukraine, the territory of the NPP “Dzharylgatskyi” refers to the Nizhnedneprovsky terraced-delta landscape of the Black Sea-Pryazovsky dry-steppe region. The main territorial area of the National Park “Dzharylgatskyi” is the Dzharylgach island with a narrow spit in its western part. The geomorphologic location of the park belongs to the region of the coastal zone of the Nizhnedneprovsk oblast plain, which includes the Oleshkivski Sands and the Kinburn Spit. Island surroundings represent the psamophytic steppe and it is one of the great features of the nature reserve in the south of Ukraine. Island isolation – the remoteness from the settlements of the mainland – is the greatest natural value of Dzharylgach. This is the largest uninhabited island in Europe. Flora of the NPP “Dzharylgatskyi” includes about 500 species of higher plants. The uniqueness of the Dzharylgatsky natural complex, the mild climatic conditions in the winter and the location along the Azov-Black Sea migration corridor have created some favourable conditions for the abundance of a significant number of birds species in different seasons of the year. Dzharylhach Island is an important link between the coastal environmental corridor. It is a place for birds to rest and nest during seasonal migrations. The territory of the national park is the part of one of the largest wetlands of international importance – “Karkinitskaya and Dzharilgatska Gulfs”. NPP “Dzharylgatsky” belongs to the Skadovsk resort zone with its warm sea, sandy beaches, long swimming season, which characterizes the park as a unique area for recreation and tourism. Discovered on Dzharylgach put peloids in their characteristics meet the highest requirements for therapeutic mud. This article analyzes the features of the natural environment and resources of the National Park “Dzharylgatskyi.” Attention is drawn to the geomorphological features of island spit. The article also raises the question of developing nature reserve agencies, such as the natural laboratory (bank) to conserve rare animals and plants.

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