603 research outputs found
The pathway of chemical evolution in bearded Iris species based on flavonoid and xanthone patterns.
No full textSi presentano dati chemotassonomici di Iris Italiane a scopo d'indagine filogenetic
Biomass, chlorophyll and nitrogen content of leaves of two chili pepper varieties (Capsicum annum) in different fertilization treatments
No full textAbstrak. Suharja, Sutarno. 2009. Biomassa, kandungan klorofil dan nitrogen daun dua varietas cabai (Capsicum annum) pada
berbagai perlakuan pemupukan. Nusantara Bioscience 1: 9-16. Penelitian ini bertujuan untuk mengetahui pengaruh berbagai perlakuan
pemupukan terhadap biomassa, kandungan klorofil dan nitrogen daun dari dua varietas cabai, Sakti (cabai besar) dan Fantastic (cabai
keriting). Penelitian dilakukan di Desa Gatak, Kecamatan Karangnongko, Kabupaten Klaten, Jawa Tengah pada September 2006 sampai
Maret 2007. Penelitian menggunakan rancangan blok lengkap dengan dua faktorial yaitu varietas cabai dan perlakuan pemupukan.
Perlakuan pemupukan meliputi tanpa pupuk (kontrol) (P1); pupuk kandang 2 kg/tanaman (P2), pupuk kandang (1 kg/tanaman) + pupuk
kimia (ZA, SP-36, KCl = 2: 1: 1) + NPK (P3); dan pupuk kandang (1 kg/tanaman) + pupuk kimia (SP-36: KCl = 1:1) + pupuk organik
cair (P4). Kadar klorofil diukur merujuk Harborne (1987), sedangkan kadar nitrogen daun diukur dengan metode Kjeldahl. Data
dianalisis menggunakan Analisis Varians dilanjutkan DMRT. Hasil penelitian menunjukkan pada cabai Fantastic, perlakuan berbagai
macam pemupukan berpengaruh terhadap biomassa dan klorofil a, namun tidak berpengaruh terhadap kandungan klorofil b, total
klorofil dan nitrogen daun. Pada cabai Sakti perlakuan pemupukan berpengaruh terhadap bobot segar tanaman, kandungan klorofil a dan
total klorofil, namun tidak berpengaruh terhadap bobot kering, bobot buah segar, kandungan klorofil b dan nitrogen daun. Oleh kerena
itu direkomendasikan untuk menggunakan formulasi pupuk kandang + pupuk kimia (SP-36: KCl = 1: 1) + pupuk organik cair dalam
budidaya cabai.
Kata kunci: biomasa, klorofil, nitrogen daun, cabai, Capsicum annum, pemupukan
Dryad data Harborne et al Oikos OIK-02602
No full textThe spreadsheet contains three worksheets. The first two sheets provide the raw field data that was input into the linear mixed-effects models to generate Table 1 and 2 and Figs 2 and 3. Variables are separated into explanatory and response variables, and the labels are self-explanatory. Collection methods are described in the paper. The third sheet provides the outputs of the simulation model that was plotted to create Fig 4. Model design and parameterisation are described in the paper
Harborne, J. H.
No full textSee entry in Calhoun County volume 1, page 34: https://digital.archives.alabama.gov/digital/collection/voter/id/16
Reef fish carbonate production assessments highlight regional variation in sedimentary significance (dataset)
No full textThe article associated with this dataset is located in ORE at: http://hdl.handle.net/10871/33697This is the dataset used for the Salter et al. (2018) article "Reef fish carbonate production assessments highlight regional variation in sedimentary significance" published in the Geology journal.Salter, Perry, and Wilson were funded through Natural Environment Research Council (NERC) grants NE/K003143/1 and NE/G010617/1. Harborne was funded through NERC fellowship NE/F015704/1 and Australian Research Council (ARC) fellowship DE120102459
Fruit Phenolics by J.J. Macheix, A. Fleuriet and J. Billot, CRC Press, Boca Raton, Florida, 1990. 378 PP. ISBN 0-8493-4968-0.
No full textProceedings of the fifth international symposium on insect-plant relationships edited by J. H. Visser and A. K. Minks. Pudoc, Wageningen, 1982. 464 pp. Dfl. 130.
No full textDamsels and distress: Factors affecting Haemulidae distribution on Bahamian reefs
No full textThe interconnected habitats of coral reefs, mangroves and seagrass are home to a quarter of all known species in the marine environment. The interconnectivity of these areas improves species richness and density, even for species that do not use the habitats as a nursery. The communities that live as part of these ecosystems, just like many other marine species, are vulnerable to the effects of anthropogenic noise. Haemulidae spp. use the patch reef system protected by the Cape of Eleuthera as an intermediate nursery and exhibit a complex relationship with Stegastes spp. The importance of coral reef flats, such as those of Eleuthera, remains a crucial knowledge gap in our understanding of the coral reef nursery ecosystem. Also lacking is an understanding of the effect of chronic boat traffic on entire coral reef fish communities. This thesis aims to address these knowledge gaps across three chapters. Chapter 1 provides a literature review exploring Haemulidae spp. in the tropical marine environment and the importance of nursery habitats; Stegastes species in the tropical marine environment; and, the effects of anthropogenic noise in the marine environment. This highlights the current knowledge gaps and guides the data chapters. Chapter 2 presents a study in the patch reef system identifying the settlement habits of three Stegastes spp. (S. leucostictus, S. diencaeus, S. partitus) and the relationship with local Haemulidae spp. populations. This study identifies that this interaction may be an indication of reef health, as well as shedding light on a competitive hierarchy that exists amongst Stegastes spp. Chapter 3 presents a community level study (53 species, 14,970 individuals, 6 patch reefs) comparing the reactions of the patch reefs either communities protected from or exposed to chronic boat traffic. The chronic effect of boat traffic had a detrimental effect on density, species richness and recruitment compared to similar reefs. This was particularly noticeable with the Haemulidae spp. using the patch reef system as an intermediate nursery. This could mean that chronic boat traffic is influencing recruitment as well as having wider implications for reef health
Summary of Coral Cay Conservation's habitat mapping data from Utila, Honduras
No full textIIThe coral reefs of Honduras are of vital national and international importance,both ecologically and economically, but are threatened because of rapid economicand population growth.? During work on Utila between 1999 and 2000 (the ?Bay Islands 2000? project),Coral Cay Conservation developed a programme of surveys, training andconservation education aimed at assessing the status of local reefs and improvingenvironmental awareness amongst neighbouring communities.? This summary report provides an overview of the habitat mapping data collectedby the Bay Islands 2000 project.? CASA provided software, hardware and skills, on a charitable basis to ensure thatthe data collected by CCC could be developed into a GIS, not only for mappingthe status of the coral reefs of Honduras, but also to provide analysis of the aerialextent of these reefs.? Data were collected within individual ?study areas?, to facilitate analysis at a rangeof spatial scales, and utilised the CCC standard baseline survey technique for therapid assessment of the characteristics of reef communities. The surveys,therefore, utilised a series of transects, perpendicular to the reef.? Baseline transects discriminated nine benthic and six geomorpholgical classeswhich indicates Utila has a high habitat diversity. Habitat diversity is importantsince the number of habitat types has been shown to be a good representation ofspecies biodiversity.? The nine benthic classes that were distinguished were all relatively coral poorbecause of a suite of relatively long-term local and regional factors, exacerbatedby the combination of Hurricane Mitch and coral bleaching in 1995 and 1998.? Damselfish were the most abundant reef associated fish recorded during baselinetransect surveys. Commercially important fish were less abundant that wouldnormally be expected in unfished systems.? A recurring pattern in the baseline transect data was the greater abundance anddiversity of fish in coral rich classes. However, although the link between fishabundance and coral cover was clear, not all species were necessarily mostabundant in the most coral rich areas.? Invertebrates were generally uncommon, partly because of fishing pressure, andthe abundances of many invertebrate taxa were correlated with coral cover.? A habitat map is presented within this report as an indication of the distribution ofhabitat types around Utila.? Using the map, estimates of areal extents of each benthic class and habitat type areinstructive. For example, there is only approximately 27 km2 of reefal habitatsaround Utila. Furthermore, the area supporting the most coral rich benthic classesis only approximately 4 km2 (15%). These statistics both highlight the damagecaused by the bleaching event and Hurricane Mitch and other anthropogenicimpacts and the need to conserve remaining coral rich areas.? If further reserves were to be created, it would be important to try to protect arange of reef and habitat types. For this reason, it appears that the Turtle HarbourWildlife Refuge is well placed since this areas includes a wide range of habitattypes. However, placement of reserves in Utila should favour relatively coral richhabitats over sand dominated areas.? This study led to six recommendations:Summary Utila habitat mapping reportIII? One or more agencies should collect additional ground-truthing data fromaround Utila to facilitate both classification of currently ?Unknown? polygonsand an accuracy assessment of the map.? Establish an integrated GIS and associated meta-database for Utila, includingdata from the Bay Islands 2000 project.? Examine the potential of using data collected by the Bay Islands 2000 projectas the basis of national habitat classification scheme and subsequent nationalhabitat map.? Continue to aim to establish one or more additional multiple use marineprotected areas around Utila, with an integrated monitoring programme tomeasure their efficacy, and strengthen the enforcement of regulations in theTurtle Harbour Wildlife Sanctuary. Establish regulations, and enforce existinglegislation, to minimise the detrimental effects of coastal development on reefhealth.? Additional marine reserves in Utila should integrate factors such as thepreference of many fish species for coral rich habitats and the protection ofareas incorporating a range of habitat types, including mangroves and seagrassbeds, in order to allow for nursery areas, ontogenetic shifts and species thatrely on non-coral rich habitats. The corollary of the preference of fish speciesfor coral rich habitats is to protect coral cover within the reserves.? The reef on the south coast of Utila appears to be a good candidate forprotection because it is relatively sheltered from storm and hurricane damage
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