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Academic literature on the topic 'Water Lily Lake'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Water Lily Lake"

1

Brugam, Richard B., Eric C. Grimm, and Nancy M. Eyster-Smith. "Holocene Environmental Changes in Lily Lake, Minnesota Inferred from Fossil Diatom and Pollen Assemblages." Quaternary Research 30, no. 1 (July 1988): 53–66. http://dx.doi.org/10.1016/0033-5894(88)90087-7.

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A postglacial core was taken from Lily Lake, a soft-water lake, located on carbonate-poor till in eastern Minnesota. Pollen analysis allowed the reconstruction of watershed vegetation change. Diatom assemblages from the core were compared with 255 surface sediment assemblages from Minnesota, Maine, Labrador, and the Canadian arctic. Late-glacial assemblages were similar to Canadian arctic lakes. During the mid-postglacial period of warmer and drier climate, fossil diatom assemblages at Lily Lake were similar to those in the surface sediment of modern eutrophic hardwater lakes in Central Minnesota. The shift to hardwater diatom assemblages coincided with a shift to prairie species in fossil pollen assemblages at about 8000 yr B.P. At about 3400 year B.P. the fossil diatom assemblage that characterized presettlement times was established.
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2

Lebedeva, O. A., E. A. Belyakov, and A. G. Lapirov. "Reproductive potential of yellow water-lily (Nuphar lutea) in the conditions of lake ecosystems." Biosystems Diversity 28, no. 1 (March 11, 2020): 60–67. http://dx.doi.org/10.15421/012010.

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Nuphar lutea (L.) Sm. (Nymphaeaceae Salisb.) belongs to the category of highly active cenose-forming plants in water bodies and water flows. The material for study of morphological peculiarities and seed productivity of the fruits of this species was collected mainly in the lake ecosystems of the Central Part of European Russia and Republic of Belarus. In the study we used biomorphological and ontogenetic approaches. Seed productivity was surveyed by direct count of number of seeds in the fruit. By abundance (in descending order), the significant reliable inter-lake differences in a number of morphological parameters of the fruit fall into the following sequence: number of rays of stigma of fruit (in six pairs of lakes) > length of fruit (in four pairs of lakes) > diameter of the stigma of fruit (in three pairs of lakes) > diameter of fruit (in two pairs of lakes) > length of the neck of the fruit (in one pair of lakes). Intra-regional differences in certain morphological parameters of fruits (by number of rays of stigmas) were most notably manifested only in the Belarus lakes which are similar by trophic status. All the differences in the fruits’ morphology could be due to differences in the habitat by the amount of nutrients in water and soil. The amount of seed productivity of the fruits from N. lutea varies broadly. Analysis of this parameter depending on the character of soils in which the plants grew indicated reliable results only in the case of muddy (296 ± 81) and sandy soils (179 ± 13). We determined that distribution of generative diasporas of N. lutea across large distances is related not only to presence of floating ability in the seeds, but also the “multi-step” process of their release: first – mericarps from fruits, and then seeds from mericarps. In the experimental conditions, most seeds directly sunk to the bed (70%) and the rest continued to float on the surface of the water during a month. Low germination of the seeds of the water-lily in the laboratory conditions (4–6%) with use of different means and terms of dry stratification was due to the fact that they have an organic morphophysiological intermediate type of rest. Having such a mechanism causes portioned and prolonged germination, allowing the species to survive in non-favourable conditions and accumulate generative diaspores in the soil. Despite the fact that the initial stages of ontogenesis in the laboratory and natural conditions have no significant differences, we found polyvariance in their tempo of development. First of all, this is related to different dates of transition of the plant from one age state to another. In the case of N. lutea, one should also note the morphological polyvariance of ontogenesis related to change in morphologic characteristics of plants depending on the water level. The obtained results give a more complete picture of the peculiarities of generative reproduction of N. lutea, necessary for understanding the ecosystem role of this plant and its impact on biological processes in water bodies.
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3

Stenberg, Johan A., and Johanna E. Stenberg. "Herbivory limits the yellow water lily in an overgrown lake and in flowing water." Hydrobiologia 691, no. 1 (February 25, 2012): 81–88. http://dx.doi.org/10.1007/s10750-012-1035-y.

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4

Ju, Yang, and Gil Bohrer. "Classification of Wetland Vegetation Based on NDVI Time Series from the HLS Dataset." Remote Sensing 14, no. 9 (April 27, 2022): 2107. http://dx.doi.org/10.3390/rs14092107.

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Natural wetlands are intrinsically heterogeneous and typically composed of a mosaic of ecosystem patches with different vegetation types. Hydrological and biogeochemical processes in wetlands vary strongly among these ecosystem patches. To date, most remote sensing classification approaches for wetland vegetation either rely on coarse images that cannot capture the spatial variability of wetland vegetation or rely on very-high-resolution multi-spectral images that are detailed but very sporadic in time (less than once per year). This study aimed to use NDVI time series, generated from NASA’s HLS dataset, to classify vegetation patches. We demonstrate our approach at a temperate, coastal lake, estuarine marsh. To classify vegetation patches, a standard time series library of the four land-cover patch types was built from referencing specific locations that were identified as “pure” pixels. These were identified using a single-time high-resolution image. We calculated the distance between the HLS-NDVI time series at each pixel and the “pure”-pixel standards for each land-cover type. The resulting true-positive classified rate was >73% for all patch types other than water lily. The classification accuracy was higher in pixels of a more uniform composition. A set of vegetation maps was created for the years 2016 to 2020 at our research site to identify the vegetation changes at the site as it is affected by rapid water elevation increases in Lake Erie. Our results reveal how changes in water elevation have changed the patch distribution in significant ways, leading to the local extinction of cattail by 2019 and a continuous increase in the area cover of water lily patches.
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5

Gee, Carole T., David Winship Taylor, and William C. Rember. "First water lily, a leaf of Nymphaea sp., from the Miocene Clarkia flora, northern Idaho, USA: Occurrence, taphonomic observations, floristic implications." Fossil Imprint 78, no. 1 (2022): 288–97. http://dx.doi.org/10.37520/fi.2022.011.

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Although the Miocene Clarkia locality in Idaho, USA, is a well-known fossil lagerstätte, this 16-million-year-old flora is especially renowned for its abundant leaves with excellent preservation. The exquisite condition of its dicot leaves has resulted in detailed research on systematics, morphology, venation, epidermal structure, cell ultrastructure, biochemistry, and even molecular biology. However, new discoveries continue to emerge, even after five decades of research. Here we describe the first water lily leaf from the Clarkia flora as Nymphaea sp. based on its form, petiole attachment, and venation. The eccentric peltate leaf is ovate with a cordate base, a deep basal sinus, entire margins, and actinodromous primary venation. Its small, unblemished condition and leathery texture suggests that it is a young floating leaf. While rare in the Clarkia Lake deposits, the occurrence of a single water lily leaf among tens of thousands of dicot and conifer leaves follows the taphonomic pattern of nearby Middle Miocene floras, two of which have yielded Nymphaea pollen. The recognition of Nymphaea at Clarkia supplements the taxonomic composition of the flora, confirms the presence of water lilies in region during the Middle Miocene, and completes our understanding of plant life in the Pacific Northwest 16 million years ago.
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6

Campbell, Peter G. C., André Tessier, Marc Bisson, and René Bougie. "Accumulation of Copper and Zinc in the Yellow Water Lily, Nuphar variegatum: Relationships to Metal Partitioning in the Adjacent Lake Sediments." Canadian Journal of Fisheries and Aquatic Sciences 42, no. 1 (January 1, 1985): 23–32. http://dx.doi.org/10.1139/f85-003.

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Relationships between the partitioning of Cu and Zn in lake sediments and their availability to the yellow water lily, Nuphar variegatum, were examined downstream from a major Cu/Zn mining and smelting complex in Northwestern Quebec, Canada. At each of 13 sampling sites, five N. variegatum individuals were collected, separated into stem and rhizome portions, and analyzed for total Cu and Zn. At the same sites, sediment cores were collected at the base of each plant; the 0- to 2-cm stratum was extruded, wet sieved (850 μm), and subjected to a sequential leaching procedure to determine the partitioning of Cu and Zn among various operationally defined geochemical fractions. Statistical analysis suggested that a significant portion of the Cu burden in N. variegatum was probably derived from the sediments, whereas the Zn content of the plant originated largely in the water column. The concentrations of Cu in the fractions most readily extracted from the sediment were the best indicators of Cu bioavailability in the sediment; normalization of these concentrations with respect to the Fe content of the sediment improved the relationship with [Curhizome], suggesting that Fe may play a protective role in regulating Cu bioavailability.
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7

Willis, E. O. "Birds of a eucaliptos woodlot in interior São Paulo." Brazilian Journal of Biology 63, no. 1 (February 2003): 141–58. http://dx.doi.org/10.1590/s1519-69842003000100019.

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Some 255 birds were recorded between 1982-2001 in and near a 2314-ha "Horto" of old eucalyptus plantations with native understory and a lake, near Rio Claro, in central São Paulo, Brazil. This is close to the 263 recorded in and around a ten-times smaller nearby 230-ha woodlot of semideciduous forest. Different species were 44, for a total of 307 in both areas. One hundred and fifty nonvagrant forest and border species were recorded in 1982-86, a number close to the 152 in the small native woodlot. With dry years and logging of plots in 1985-93, 21 of the 150 species were lost, 42 species decreased in numbers, 49 were stable, 19 increased (15 being border species), and 5 entered (one of dry forest and 4 of borders), so 129 species remained in 1996-2001 compared to 133 in the native woodlot. Open-area birds were 33, versus 50 in better-checked grassy swales in sugar cane near the natural woodlot, for a total of 53. Several species, like some border ones, did not enter the open but isolated and mowed interior lake area, or took years to do so. Water and marsh birds were 46 versus 40 in smaller creeks and ponds near the natural woodlot (total, 55) but many were migrants or infrequent visitors using distant areas, and perhaps should be counted as 0.1-0.9 "local species" rather than "1" species. Use of this more accurate method would reduce waterbird totals by 14 "species" in the Horto and by 11 around the native woodlot. I also recommend longer censusing at the edges in large woodlots or many edge species will be recorded only in small fragments of habitat. Several species increased and others decreased with occasional cat-tail and water-lily cleanups at the lake. A forested corridor between the Horto and natural woodlot is recommended, with old eucalyptus left to provide flowers for hummingbirds.
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8

Husband, Claire R., Nigel J. Cassidy, and Ian G. Stimpson. "The geophysical investigation of lake water seepage in the regulated environment of the Bosherston Lily Ponds, South Wales, UK. Part 1: natural, fracture‐related pathways." Near Surface Geophysics 7, no. 5-6 (July 2009): 499–515. http://dx.doi.org/10.3997/1873-0604.2009042.

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9

Husband, Claire R., Nigel J. Cassidy, and Ian G. Stimpson. "The geophysical investigation of lake water seepage in the regulated environment of the Bosherston Lily Ponds, South Wales, UK. Part 2: historical, dam‐related pathways." Near Surface Geophysics 7, no. 5-6 (July 2009): 517–28. http://dx.doi.org/10.3997/1873-0604.2009044.

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10

Shinkareva, G. L., M. Yu Lychagin, M. K. Tarasov, J. Pietroń, M. A. Chichaeva, and S. R. Chalov. "Biogeochemical specialization of macrophytes and their role as a biofilter in the Selenga delta." GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY 12, no. 3 (October 3, 2019): 240–63. http://dx.doi.org/10.24057/2071-9388-2019-103.

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This study aims to evaluate the biofiltration ability of higher aquatic vegetation of the Selenga delta as a barrier for heavy metals and metalloids (HMM) flows into the Lake Baikal. Main aquatic vegetation species have been collected from deltaic channels and inner lakes: Nuphar pumila, Potamogeton perfoliatus, P. pectinatus, P. natans, P. friesii, Butomus umbellatus, Myriophyllum spicatum, Ceratophyllum demersum, Phragmites australis. Analysis of the obtained data showed that regardless of the place of growth hydatophytes spiked water-milfoil (M. spicatum) and the fennel-leaved pondweed (P. pectinatus) most actively accumulate metals. Opposite tendencies were found for helophytes reed (Ph. australis) and flowering rush (B. umbellatus), which concentrate the least amount of elements. This supports previous findings that the ability to concentrate HMM increases in the series of surface – floating – submerged plants. Regarding river water, the studied macrophyte species are enriched with Mn and Co, regarding suspended matter – Mo, Mn and B, regarding bottom sediments – Mn, Mo and As. We identified two associations of chemical elements: S-association with the predominant suspended form of migration (Be, V, Co, Ni, W, Pb, Bi, Mn, Fe and Al) and D-association with the predominant dissolved form of migration (B, U, Mo, Cr, Cu, Zn, As, Cd, Sn and Sb). Due to these associations three groups of macrophytes were distinguished – flowering rush and reed with a low HMM content; small yellow pond-lily and common floating pondweed with a moderate accumulation of S-association and weak accumulation of D-association elements; and clasping-leaved pondweed, fennel-leaved pondweed, and pondweed Friesii accumulating elements of both S and D groups. The results suggest that macrophytes retain more than 60% of the total Mn flux that came into the delta, more than 10% – W, As, and from 3 to 10% B, Fe, Co, Mo, Cd, V, Ni, Bi, Be, Cu, Zn, Cr, U, Al. The largest contribution is made by the group of hydatophytes (spiked water-milfoil and pondweed), which account for 74 to 96% of the total mass of substances accumulated by aquatic plants.
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Books on the topic "Water Lily Lake"

1

Bugbee, Gregory J. Control of cabomba, Eurasian milfoil and water lily in Lake Quonnipaug with herbicides and hydroraking, 2002. New Haven: Connecticut Agricultural Experiment Station, 2005.

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Bugbee, Gregory J. Control of cabomba, Eurasian milfoil and water lily in Lake Quonnipaug with herbicides and hydroraking, 2002. New Haven: Connecticut Agricultural Experiment Station, 2005.

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JOURNALS, Nomad. Planner: Pink Water Lily Flowers on a Lake/Start Anytime Undated 52 Week Planner for Efficiency and Productivity, Organizer for Goal-Setting, Task Management, Budget Tracking, Daily / Weekly Planning, Creative Thinking and Self-Care. Independently Published, 2021.

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Book chapters on the topic "Water Lily Lake"

1

"Because of previous isolated reports of swimmer’s itch at the stage 1 lake, periodic surveys by sweep netting commenced in July 1990. For each of six localities covering three distinct habitat types (open bays within the lake, along the margins of permanent creeks, temporary ponds), 1 m quadrats containing all vegetation types were scoured for snails. Austropeplea snails were not present in the lake proper until February 1991, but in November 1990 they were first located in ponds along the north-east, east and south-western shorelines. Egg masses were often found attached to the undersides of nardoo (Marsilea mutica) and sometimes wrapped around the stalks and ventral surfaces of the water lily, Nymphaea gigantea. Thus its absence from the lake was attributed to the lack of established vegetation in the stage 2A lake, and from this we developed a working hypothesis that host snails were possibly vegetation-specific. Thus to facilitate recreational use, control of infected Austropeplea could be achieved by simply clearing the appropriate water plant. By July to August 1991, however, schistosome-infected Austropeplea were collected from various types of vegetation along the margins of Ross River, close to the lake. A few Amerianna and Gyraulus gilberti were found in Ti-Tree Bay contiguous with Big Bay and Round Island, which were still negative for snails. By February 1992, planorbids were present in all three habitat types, with Austropeplea in two, i.e. ponds and creeks around the lake. Until 1993, 2,365 snails were dissected to detect both patent and pre-patent Trichobilharzia infection. Four different species of snails were identified, size classed according to shell length or width using vernier calipers. Snails were crushed on a microscope slide or in a Petri dish with a few drops of water under a warm light. A heavy infection of cercariae is evident to the naked eye, but any worm-like animals were removed on to another slide, stained with two to three drops of 0.1 per cent neutral red dye, covered with a coverslip and examined microscopically. Schistosome cercariae are distinctive with their eye spots, forked tail and presence of oral and ventral suckers (see Figure 9.4). Schistosomes were recovered from 4.5 per cent and 1.7 per cent of Austropeplea and Gyraulus gilberti snails, but not from Amerianna nor Thiara. In terms of management solutions, several questions seemed paramount: • Which habitat types presented the greatest (and lowest) risk? • Which time of the year presented the greatest hazard? • Can certain indicators be used to predict infection? Statistical analysis of the presence and abundance of Austropeplea snails did not correlate with any particular vegetation type (Hurley et al. 1995) but was connected with vegetation generally. There was no clear-cut relationship with snail density and physicochemical parameters including temperature, biomass of periphyton or with percentage surface coverage. However, highest densities of Austropeplea lessoni (45/m and Amerianna." In Water Resources, 149. CRC Press, 1998. http://dx.doi.org/10.4324/9780203027851-36.

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