Fulltext – Factors Contributing to Critically Endangered Status of Aquilegia nivalis Falc ex Jackson- an Alpine Endemic Angiosperm in the Kashmir Himalaya. Aquilegia nivalis Falc. ex Baker Accepted Name . During our study of the high altitude threatened alpine plant species Aquilegia nivalis Falc. ex Ba May PDF | During our study of the high altitude threatened alpine plant species Aquilegia nivalis Falc. ex Baker and Doronicum falconeri Cl. ex Hk. f. of the north- west.
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Habitat characteristics of the study sites supporting six different populations of Aquilegia nivalis in the Kashmir Himalaya. Physoplexis comosa and Primula glaucescens. In the Sarsoon population, the relatively greater number of reproductive individuals with many bearing more than one flower, showed a relatively greater reproductive out put above and beyond the prevalence of herbivory.
Press, Cambridge, UK, pp: Population size and reproduction in Phlox pilosa.
Number of visits an insect aqquilegia, time it spent on one flower, number of flowers it visited in a single visit and the number of plants it visited were recorded. Abstract During our study of the high altitude threatened alpine plant species Aquilegia nivalis Falc.
Similar conclusions from other studies nivalus the argument that low population or patch size may affect the attraction aqiulegia pollinators, because small populations or patches may be less apparent and offer lower pollen and nectar rewards Rathcke, ; Sih and Baltus, The current auqilegia showing distribution of species is only indicative. Abundance, distribution and life histories of grassland plants: Pollen viability and abundance: Population density and fate of individuals: Consequently, the maximum number of fruits 1.
Species biology, the key to plant preservation. Partners Member Archived in. Stewart recorded this in Northern Pakistan and Kashmir from a number of locations m. Beautiful uploads I think you have very good flower repository of flowers The plant may be Aquilegia nivalis.
Allee effects limit population viability of an annual plant. The patchy populations of this species were found to consist of a small number of individuals with majority being vegetative and a smaller number being in reproductive phase.
Carpels usually2. The breeding experiments established that this species exhibits a facultative xenogamous breeding system. Effects of habitat size and patch isolation on reproductive success of the serpentine morning aquilegis.
.JPG "aquilegia nivalis")
This totaled to about 18 h of observation. Dianthis pulmarius var lumnizerii. Studies with Australian proteaceae. Reproductive biology in relation to systematics. Effects of mivalis deterioration on population dynamics and extinction risk of an endangered, long-lived perennial herb Scorzonera humilis. In this communication, a detailed taxonomic description, with an up to date nomenclature, distribution and specimens examined is presented.
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I qauilegia exchange these seeds for seeds of hardy plants, preferingly alpines and rock garden plants, or prennials up to 60cm tall. Lower cauline leaves a few 6. The number of flowers showed variation between populations in the respect that greater numbers of individuals in some populations bear more than one flower per plant as against the usual pattern of one flower per plant nivqlis most of the reproductive individuals in other populations.
Species specific search options Taxon Hierarchy. It is because reproductive ecological studies provide information aquuilegia the nature and origin of a species, its adaptations, hybridization and systematics Ornduff, ; Anderson et al.
Biodiversity hotspots for conservation priorities. Effects of population size and pollinator limitation on seed set of Primula sieboldii populations in a fragmented landscape. The stigma matures earlier than the anthers even when the latter are yet to dehisce, hence flowers of this species exhibit both dichogamy as well as herkogamy.
The mean and standard error for stigma receptivity and pollen viability is based on three replicates.
Aquilegia nivalis
Scientific Publishers, Jodhpur, India. The seedlings without colour marking on each sampling date constituted the new recruitments, which, after counting, were marked with the colour-paint in the permanent quadrats to distinguish between the already recruited and new recruits on the successive sampling dates.
In a 10×10 m area, 36 observations of 30 min apiece during different times of the day from 8 am to 6 pm were conducted for 6 days by one or more observers. The cytochemical reduction of nitro blue tetrazolium as an index of pollen viability.
The matter gets further complicated by the presence of limited germination microsites, nivlais low seed germination percentage evidenced by the occurrence of meager proportion or total absence of seedlings from most of its populations. Eighteen plants were selected randomly from the Apharwat and Khillanmarg populations with floral buds each and were subjected to pollination experiments. How plant life-history and ecological traits relate to species rarity and commonness at varying spatial scales.
DarZafar ReshiG.
Stamp: Aquilegia nivalis (Bhutan) (Local flora) Mi:BT ,Sn:BT f,Yt:BT
Endemic angiosperms nuvalis Kashmir: The resulting fruits from these treatments were collected and number of fruits and number of seeds wherever formed per fruit was determined at the end of growing season. Number of non-germinated, number of germinated and total number of pollen grains on the stigma surface was determined to obtain percentage of germinated pollen grains on sigma surface.
The initiation of receptivity and its longevity was also aquliegia. The herbivores, besides damaging leaves of vegetative and reproductive individuals, destroy the beautiful, nectariferous and conspicuously large, flowers of this species; hence further diminishing the number of available mates and other attributes. Many other studies carried out in plant populations have shown that low densities are associated with reduced pollination success Allison, ; Feinsinger et al.
The stigma and anthers nivalks separated in nivapis as well as time, the former can be found without any pollen even up to 3 days before anthesces in bud conditions. On the day of anthesis. From the perusal of demographic details Fig. Potentilla atrosanguinea var agyrophylla. Checklists specific search options Observed during.
All these factors, in conjunction with hostile habitat conditions and enhanced anthropogenic pressures, contribute to the present threat status of this endemic species.