Identification and documentation of wild plant species with ornamental potentials at Mount Prau, Central Java, Indonesia

Indonesia has diverse flora and fauna, and many species remain largely undiscovered. Documentation and identification of threatened wild ornamental species are increasingly difficult due to ongoing exploitation and land conversion. Mount Prau is one of the popular destinations in Central Java, Indonesia for tourism. Understanding plant biodiversity has enormous value for the economy, ecology, culture, science, and recreation. Our study is aimed to record the diversity and identify the flowering plant species in their native habitat at Mount Prau, Central Java, Indonesia. Our field surveys demonstrated that Mount Prau has abundant wild ornamental plants with wide diversity of taxa, growth habits, and forms. A total of 103 species representing 51 families and 95 genera are identified including trees, shrubs, herbs, and lianas. We also found that among the plant species found in Mount Prau, 24 have morphological characters suitable to be cultivated as ornamental flowers, and 12 as ornamental foliages, and 63 species are medicinal plants. The ornamental criteria of these species were based on the literature describing the morphological and unique characters of leaves and flowers that made them potential to be developed as ornamental plants. In this paper we have provided the current conservation status of the plant species identified and recommendations on their conservation. This study provides baseline data of species found in the Mount Prau areas, and this information could be helpful for further conservations efforts and initiatives.

Identification and documentation of wild plant species with ornamental potentials at Mount Prau, Central Java, Indonesia

Indonesia has diverse flora and fauna, and many species remain largely undiscovered. Documentation and identification of threatened wild ornamental species are increasingly difficult due to ongoing exploitation and land conversion. Mount Prau is one of the popular destinations in Central Java, Indonesia for tourism. Understanding plant biodiversity has enormous value for the economy, ecology, culture, science, and recreation. Our study is aimed to record the diversity and identify the flowering plant species in their native habitat at Mount Prau, Central Java, Indonesia. Our field surveys demonstrated that Mount Prau has abundant wild ornamental plants with wide diversity of taxa, growth habits, and forms. A total of 103 species representing 51 families and 95 genera are identified including trees, shrubs, herbs, and lianas. We also found that among the plant species found in Mount Prau, 24 have morphological characters suitable to be cultivated as ornamental flowers, and 12 as ornamental foliages, and 63 species are medicinal plants. The ornamental criteria of these species were based on the literature describing the morphological and unique characters of leaves and flowers that made them potential to be developed as ornamental plants. In this paper we have provided the current conservation status of the plant species identified and recommendations on their conservation. This study provides baseline data of species found in the Mount Prau areas, and this information could be helpful for further conservations efforts and initiatives.

Mistletoe, Viscum album (Santalaceae), in Britain and Ireland; a discussion and review of current status and trends

The status of Viscum album L. (Mistletoe) in Britain and Ireland is discussed and current trends reviewed. An overview of life-cycle is given, including discussion of dispersal, germination and host connection, all aspects important in understanding status and trends. A summary of hosts and habitats is followed by a review of distribution; the long-established pattern in the south-west midlands plus recent and ongoing changes. The biodiversity value of mistletoe for other species is discussed. The seasonal mistletoe trade, its history and implications, is outlined. Some current conservation, control and planting projects are described. A brief summary of toxicity and medicinal uses is given. Concluding remarks outline various research opportunities; particularly those that would help understand and set a baseline to measure current and future trends.

Diversity of the Seed Material of Selected Plant Species of Naturally Valuable Grassland Habitats in Terms of the Prognosis of Introduction Success

The current conservation status of semi-natural grassland habitats in Poland indicates that actions for their restoration are necessary. Many of the degraded sites require the introduction of diaspores of representative species because other methods of improving their condition are not sufficiently effective. Meanwhile, little is known about the diaspores of native wild-flower species and the biology of their seeds. The aim of the present study was to find an answer to the question of which features of the seed material can guarantee the success of the introduction. The study covered 28 plant species of 4 non-forest natural habitats (codes: 6440, 6410, 6510, 6210) occurring in river valleys. Diaspores were collected in 2015–2017. Morphometric measurements of diaspores were performed, the weight of 1000 diaspores was determined and the germination capacity analysis was carried out in accordance with ISTA Rules. The analysis was made with the division into normal seedlings, abnormal seedlings, dead seeds and fresh ungerminated seeds. Species with similar parameters of seed material were selected using the method of hierarchical clustering and PCA analysis. Three groups of species were distinguished: (1) with good seed germination capacity (above 65%), which, regardless of weather conditions during the generative development, and despite the small size of diaspores, can guarantee successful introductions (Verbascum thapsus, Veronica longifolia, Daucus carota, Plantago lanceolata); (2) species of little suitability for introduction, due to the large proportion (over 50%) of dead seeds (Armeria maritima, Linaria vulgaris, Potentilla erecta, Centaurea stoebe, Sanguisorba officinalis, Cnidium dubium); (3) species with relatively large size of diaspores and low seed germination capacity, due to the high proportion of fresh ungerminated seeds which means dormant seeds (Lathyrus pratensis, Geranium pratense).

Traditional Institutions' Management of Sacred Forests in Tanzania: History, Narratives, and Evidence from Njombe Region, 1880s-2019

<p>Forest management entails interdependence between nature and society at different levels and systems. In Africa, one example of the interdependence of nature and society is ‘sacred forests,’ groves of trees with special religious importance to a people’s culture. In Tanzania, sacred forests are comparatively small in area, scattered over the entire country, and primarily managed by local village lineages, or kinship groups. In these communities, the close interaction in a small-scale society acts as a monitoring and sanctioning device. The patches of sacred forests have historically been managed as part of local tradition. Their management demonstrates Traditional Ecological Knowledge (TEK), the linkages between biodiversity and cosmology, and the intersection between the social and the natural sciences. Scholars of traditional forestry in Tanzania have for decades compared sacred woodlands with the state- or private-owned forests. Comparing these different forest management systems cultivated a ‘relic stance’ in much of the scholarship regarding sacred groves. The predominant tone of sacred forest scholarship has been to describe sacred landscapes as static communal sites without exploring their associated constitutive dynamics. In such an interpretation, sacred forests have been regarded as remnants of the primordial past, a frozen view of these fragments of woodlands. Studying sacred groves without considering the institutions that uphold them is problematic, as it assumes traditional institutions have continued to be stagnant, interacting with sacred forests in the same way throughout time. This thesis studies traditional institutions’ management of sacred forests by the Bena people of Njombe, southwest Tanzania, 1880s–2019. The Bena are a largely unstudied group. The study uses a qualitative, mixed-method research approach, including interviews in Swahili and Bena, documentary evidence from the Tanzania National Archives, anthropological reports, participant observation, and online documentaries. In applying a mixed-method approach, the thesis bridges history, anthropology, ethnography, and ecology to study forest management as an ongoing process of interdependence between nature and society. Rather than exclusively looking at the sacred forests as geographic locations, this study underscores their socio-ecological aspect and asserts traditional institutions’ dynamics as a key in explaining their history in Njombe. Thus, the thesis not only foregrounds the existence of such patches of forests in Njombe but also unpacks the institutional, cultural politics to reveal the contestations and appropriations around the symbolic, cultural, economic, and ecological value of sacred sites among the Bena community. By using a knowledge-practice-belief complex systems lens, this thesis expands beyond simplistic narratives of inertness, to focus on historical, cultural, economic, and political dynamics that are internal and external to communities that have often helped sustain sacred groves’ traditions or contributed to their degradation. The thesis argues that the Bena sacred forests are embedded in a cultural matrix which is very different from the socio-cultural, economic, political, and ecological landscapes from which they evolved. While managing sacred forests was traditionally an integral part of cultural systems designed to sustain livelihoods and spiritual well-being of the community, the relationship between the land and culture has shifted dramatically within different historical periods, altering the steadiness of the sites. In pre-colonial Njombe, chiefs and elders controlled the use of natural resources, but the relationships of the inhabitants to the forests changed with shifting social and environmental conditions. During German and British colonial rule, differences in perception of the landscape defined the contest over sacred forests between the indigenous people and the foreigners. The materially driven world has increasingly necessitated redefinition of sacred landscapes in post-colonial Njombe. The meanings attributed to sacred forests, derived from traditional Bena cosmology and which drive current conservation policies, have changed, and adapted to new circumstances. The shift represents the flexibility and evolution of local institutions and ecological knowledge, which illustrates the power of fluid, dynamic local communities. The change also emphasises the divergent approach of current conservation programs, which view sacred forests as static and contained.</p>

Traditional Institutions' Management of Sacred Forests in Tanzania: History, Narratives, and Evidence from Njombe Region, 1880s-2019

<p>Forest management entails interdependence between nature and society at different levels and systems. In Africa, one example of the interdependence of nature and society is ‘sacred forests,’ groves of trees with special religious importance to a people’s culture. In Tanzania, sacred forests are comparatively small in area, scattered over the entire country, and primarily managed by local village lineages, or kinship groups. In these communities, the close interaction in a small-scale society acts as a monitoring and sanctioning device. The patches of sacred forests have historically been managed as part of local tradition. Their management demonstrates Traditional Ecological Knowledge (TEK), the linkages between biodiversity and cosmology, and the intersection between the social and the natural sciences. Scholars of traditional forestry in Tanzania have for decades compared sacred woodlands with the state- or private-owned forests. Comparing these different forest management systems cultivated a ‘relic stance’ in much of the scholarship regarding sacred groves. The predominant tone of sacred forest scholarship has been to describe sacred landscapes as static communal sites without exploring their associated constitutive dynamics. In such an interpretation, sacred forests have been regarded as remnants of the primordial past, a frozen view of these fragments of woodlands. Studying sacred groves without considering the institutions that uphold them is problematic, as it assumes traditional institutions have continued to be stagnant, interacting with sacred forests in the same way throughout time. This thesis studies traditional institutions’ management of sacred forests by the Bena people of Njombe, southwest Tanzania, 1880s–2019. The Bena are a largely unstudied group. The study uses a qualitative, mixed-method research approach, including interviews in Swahili and Bena, documentary evidence from the Tanzania National Archives, anthropological reports, participant observation, and online documentaries. In applying a mixed-method approach, the thesis bridges history, anthropology, ethnography, and ecology to study forest management as an ongoing process of interdependence between nature and society. Rather than exclusively looking at the sacred forests as geographic locations, this study underscores their socio-ecological aspect and asserts traditional institutions’ dynamics as a key in explaining their history in Njombe. Thus, the thesis not only foregrounds the existence of such patches of forests in Njombe but also unpacks the institutional, cultural politics to reveal the contestations and appropriations around the symbolic, cultural, economic, and ecological value of sacred sites among the Bena community. By using a knowledge-practice-belief complex systems lens, this thesis expands beyond simplistic narratives of inertness, to focus on historical, cultural, economic, and political dynamics that are internal and external to communities that have often helped sustain sacred groves’ traditions or contributed to their degradation. The thesis argues that the Bena sacred forests are embedded in a cultural matrix which is very different from the socio-cultural, economic, political, and ecological landscapes from which they evolved. While managing sacred forests was traditionally an integral part of cultural systems designed to sustain livelihoods and spiritual well-being of the community, the relationship between the land and culture has shifted dramatically within different historical periods, altering the steadiness of the sites. In pre-colonial Njombe, chiefs and elders controlled the use of natural resources, but the relationships of the inhabitants to the forests changed with shifting social and environmental conditions. During German and British colonial rule, differences in perception of the landscape defined the contest over sacred forests between the indigenous people and the foreigners. The materially driven world has increasingly necessitated redefinition of sacred landscapes in post-colonial Njombe. The meanings attributed to sacred forests, derived from traditional Bena cosmology and which drive current conservation policies, have changed, and adapted to new circumstances. The shift represents the flexibility and evolution of local institutions and ecological knowledge, which illustrates the power of fluid, dynamic local communities. The change also emphasises the divergent approach of current conservation programs, which view sacred forests as static and contained.</p>

Fluid Gauge Theory

According to the general gauge principle, Fluid Gauge Theory is presented to cover a wider class of flow fields of a perfect fluid without internal energy dissipation under anisotropic stress field. Thus, the theory of fluid mechanics is extended to cover time dependent rotational flows under anisotropic stress field of a compressible perfect fluid, including turbulent flows. Eulerian fluid mechanics is characterized with isotropic pressure stress fields. The study is motivated from three observations. First one is experimental observations reporting large-scale structures coexisting with turbulent flow fields. This encourages a study of how such structures observed experimentally are possible in turbulent shear flows, Second one is a theoretical and mathematical observation: the ”General solution to Euler’s equation of motion” (found by Kambe in 2013) predicts a new set of four background-fields, existing in the linked 4d-spacetime. Third one is a physical query, ”what symmetry implies the current conservation law ?”. The latter two observations encourage a gauge-theoretic formulation by defining a differential one-form representing the interaction between the fluid-current field jμand a background field aμ.

Subtropical Broad-Leaved Urban Forests as the Foremost Dynamic and Complex Habitats for a Wide Range of Bird Species

Broad-leaved subtropical forests are the most productive, diversified, and complex ecosystems on the planet. Unfortunately, they are currently under severe threat from anthropogenic activities, such as. deforestation, housing settlements, and agricultural expansion. In response to these severe effects, the present study was conducted to explore the current conservation status and population structure of a wide range of bird species inhabiting different subtropical broad-leaved urban forests of Pakistan. In total, 2879 individuals comprising 53 species and 28 families were detected between December 2017 and November 2018 as revealed through the distance sampling line transect method. The habitat selection among bird species varied according to vegetation structure and composition, food resources, adjoining habitats, and human settlements. According to IUCN Red List data, one species was deemed vulnerable out of 53 bird species, while the remaining 52 species were ranked as ofleast concern. The findings of the density analysis revealed that bird density varied between six subtropical broad-leaved forests. Palamar (3.954 ± 0.221 birds/ha) and Kityari (3.138 ± 0.162 birds/ha) were densely populated, whereas Kamal Khan (1.102 ± 0.178 birds/ha) was of the least concern. Likewise, the diversity analysis showed that Kamal Khan was a more diverse habitat (Shannon–Wiener Index; H’ = 3.581 ± 0.021). Shahabad was richer (Margalef Richness Index; R1 = 8.007 ± 0.053) and Dob Ghar was evenly distributed (Pielou J Evenness Index; E = 0.940 ± 0.005) compared to other urban habitats studied. Eight foraging guilds were identified among the bird species. Insectivores were the most abundant bird species utilizing the urban dwelling habitats. carnivores/piscivores/insectivores utilized Dob Ghar forest, while more frugivores utilized Kamal Khan and Dob Ghar. Based on the data, it was concluded that subtropical broad-leaved urban forests are dynamic, complex, and of vital significance for a diverse range of bird species.

EVALUATING CONSERVATION STATUS, THREATS AND POPULATION TRENDS OF LEUCADENDRON, A PLANT GENUS ENDEMIC TO THE CAPE REGION IN SOUTH AFRICA

Declines in endemic species have significant impact on global biodiversity loss. More efforts need to be harnessed to further protect endemic species from the current global extinction crisis. This study evaluated the current conservation status, factors responsible for risk of extinction and the trends in populations of Leucadendron, a plant genus endemic to the Cape region in South Africa. The SANBI (South African National Biodiversity Institute) Red List was employed in this study. The results revealed that over 50% of taxa in this genus are threatened and most of the species are exposed to habitat destruction and the presence of invasive species. It was also discovered that two species of this genus are currently extinct, which implies this genus is facing a high risk of extinction. More efforts, such as designing effective methods of controlling forces responsible for the risk of extinction of taxa in this genus, should be put in place to prevent their complete extirpation in future.