Amsinckia grandiflora | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Boraginales |
Family: | Boraginaceae |
Genus: | Amsinckia |
Species: | A. grandiflora |
Binomial name | |
Amsinckia grandiflora | |
Amsinckia grandiflora is a species of fiddleneck known by the common name large-flowered fiddleneck. This is a wildflower endemic to California and considered a Critically endangered species on the state and national level. Amsinckia grandiflora is one of four 1248 rare heterostylous species within the genus Amsinckia that have highly restricted distributions from which the more weedy homostylous congeners are thought to have evolved. [1]
The last remaining native populations are on the grasslands near Lawrence Livermore National Laboratory in Alameda County, California. Other populations have been established in nearby protected areas. The plant is endangered due to a number of factors, including invasive plants, grazing, and development of the valuable land. In the California grasslands, fire is commonly used to control the exotic species, however it negatively affects the native species that live there like Amsinckia grandiflora. Due to the use of fire, the population of the organism is decreasing. [2] [3]
This fiddleneck has low reproductive output; it produces few seeds per plant. It is also heterostylous, making the plant self-incompatible, which means individuals cannot breed with other individuals of the same morph. This often prevents reproduction. Also, processes like recombination can produce extremely unfit individuals, and inbreeding depression is a risk for both self-compatible and self-incompatible plants. [4] These rare plants are less likely to have preferential pollinators and hence are more vulnerable to stigmatic clogging from extraspecific pollen and interspecific disease transmission through the pollination vector. [5]
This fiddleneck is also sensitive to habitat; it grows on sedimentary loam in mesic areas of its range. The Livermore Laboratory is actively monitoring the status of this California endemic.
Conservation in Australia is an issue of state and federal policy. Australia is one of the most biologically diverse countries in the world, with a large portion of species endemic to Australia. Preserving this wealth of biodiversity is important for future generations. 25% of Australia is managed for conservation.
A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on Earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area.
Conservation status is a measure used in conservation biology to assess an ecoregion's degree of habitat alteration and habitat conservation. It is used to set priorities for conservation.
Conservation biology is the study of the conservation of nature and of Earth's biodiversity with the aim of protecting species, their habitats, and ecosystems from excessive rates of extinction and the erosion of biotic interactions. It is an interdisciplinary subject drawing on natural and social sciences, and the practice of natural resource management.
Amsinckia is a genus of flowering plants commonly known as fiddlenecks. The common name is derived from the flower stems, which curl over at the top in a manner reminiscent of the head of a fiddle. Fiddlenecks are in the family Boraginaceae, along with borage and forget-me-nots. The genus is named after the patrician Amsinck family in honour of the Hamburg head of state and patron of botany Wilhelm Amsinck (1752–1831).
Habitat fragmentation describes the emergence of discontinuities (fragmentation) in an organism's preferred environment (habitat), causing population fragmentation and ecosystem decay. Causes of habitat fragmentation include geological processes that slowly alter the layout of the physical environment, and human activity such as land conversion, which can alter the environment much faster and causes the extinction of many species. More specifically, habitat fragmentation is a process by which large and contiguous habitats get divided into smaller, isolated patches of habitats.
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in the human-dominated ecosystems of the anthropocene era. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth's biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a "win-win" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.
Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup, especially antigorite, lizardite, and chrysotile or white asbestos, all of which are commonly found in ultramafic rocks. The term "serpentine" is commonly used to refer to both the soil type and the mineral group which forms its parent materials.
Dan James Pantone is an American ecologist and conservationist with a Ph.D. from the University of California, Davis. A former professor at Texas A&M University, Dr. Pantone is a researcher who has published numerous refereed articles on agroecology and sustainable agriculture. In addition, he is a specialist in Geographical Information Systems (GIS) which he has used to help conserve endangered species. Dr. Pantone has established his broad experience in numerous scientific disciplines by publishing diverse articles ranging from the biological control of pests to the conservation biology of endangered species.
The campo rupestre is a discontinuous montane subtropical ecoregion occurring across three different biomes in Brazil: Cerrado, Atlantic Forest and Caatinga. Originally, campo rupestre was used to characterize the montane vegetation of the Espinhaço Range, but recently this term has been broadly applied by the scientific community to define high altitudinal fire-prone areas dominated by grasslands and rocky outcrops.
Conservation grazing or targeted grazing is the use of semi-feral or domesticated grazing livestock to maintain and increase the biodiversity of natural or semi-natural grasslands, heathlands, wood pasture, wetlands and many other habitats. Conservation grazing is generally less intensive than practices such as prescribed burning, but still needs to be managed to ensure that overgrazing does not occur. The practice has proven to be beneficial in moderation in restoring and maintaining grassland and heathland ecosystems. Conservation or monitored grazing has been implemented into regenerative agriculture programs to restore soil and overall ecosystem health of current working landscapes. The optimal level of grazing and grazing animal will depend on the goal of conservation. Different levels of grazing, alongside other conservation practices, can be used to induce desired results.
Zygaena loti, the slender Scotch burnet, is a moth of the family Zygaenidae. It is a diurnal moth characterized by a black body, light colored legs, and red spots on its wings. The caterpillars are a yellow-green color and usually molt out of dormancy in late February to early March. The larvae feed on plants from the family Fabaceae until they enter their pupal stage and mature into adults in May to early June. For mating, Zygaenidae exhibit a dual-partner finding strategy, where females use pheromones while assuming a calling position, and males exhibit a patrolling behavior where they utilize both vision and the olfactory receptors in their antennae to locate a potential mate. Although regionally endangered as their population is declining, Z. loti is found all across Europe, inhabiting areas rich in their desired food plants: lime-rich, and characterized by a hot and dry climate. The decreases in their population are likely due to factors such as habitat loss and fragmentation brought on by commercial agriculture and urbanization, as well as global climate change. There are few conservation programs currently focusing on Zygaena loti.
Scottsdale Reserve is a 1,328-hectare (3,280-acre) nature reserve on the Murrumbidgee River in south-central New South Wales, Australia. It is 79 kilometres (49 mi) south of Canberra, and 4 kilometres (2.5 mi) north of Bredbo. It is owned and managed by Bush Heritage Australia (BHA), which purchased it in 2006. The purchase was supportive of projects aiming to connect existing fragmented remnant habitat such as K2C. Since the 1870s up until 2006, the land was used for agriculture – primarily sheep grazing with some minor cropping. A significant component of the Reserve has been cleared of native vegetation.
Amsinckia tessellata is a species of fiddleneck known by the common names bristly fiddleneck, tessellate fiddleneck, checker fiddleneck, and devil's lettuce.
Mediterranean forests, woodlands and scrub is a biome defined by the World Wide Fund for Nature. The biome is generally characterized by dry summers and rainy winters, although in some areas rainfall may be uniform. Summers are typically hot in low-lying inland locations but can be cool near colder seas. Winters are typically mild to cool in low-lying locations but can be cold in inland and higher locations. All these ecoregions are highly distinctive, collectively harboring 10% of the Earth's plant species.
Amsinckia carinata is a species of flowering plant in the borage family known by the common name Malheur Valley fiddleneck. It is endemic to Oregon, where it is known only from Malheur County.
Chandra Prakash Kala is an Indian ecologist and professor. His research interests include alpine ecology, conservation biology, indigenous knowledge systems, ethnobotany and medicinal aromatic plants. He is an assistant professor in the faculty area of Ecosystem and Environment Management at the Indian Institute of Forest Management.
The key characteristic of dry grasslands is that they have low-growing plants, causing the area to be quite open. They also have a mottled structure, which leads to a biome with sunny or semi-shaded areas. On top of that, their soil is relatively dry and nutrient-poor. There are, however, types of grasslands with a higher humus and nutrient content. The soil of these areas overlie acid rocks or deposits such as sands and gravels. Dry grasslands belong to different zones such as: the natural zonal or azonal/extrazonal vegetation and the semi-natural vegetation. Overall, there are 13 classes that fall under dry grasslands.
Erika S. Zavaleta is an American professor of ecology and evolutionary biology at the University of California, Santa Cruz. Zavaleta is recognized for her research focusing on topics including plant community ecology, conservation practices for terrestrial ecosystems, and impacts of community dynamics on ecosystem functions.
Carlsen, T. M., Espeland, E. K., & Pavlik, B. M. (2002). Reproductive ecology and the persistence of an endangered plant. Biodiversity and Conservation, 11(7), 1247–1268. https://doi.org/10.1023/A:1016066618824