scholarly journals X-Band Radar for Cetacean Detection (Focus on Tursiops truncatus) and Preliminary Analysis of Their Behavior

2020 ◽  
Vol 12 (3) ◽  
pp. 388
Author(s):  
Matteo Mingozzi ◽  
Francesca Salvioli ◽  
Francesco Serafino
Keyword(s):  
Data Collection ◽  
Marine Mammals ◽  
Field Work ◽  
Iucn Red List ◽  
Electromagnetic Signal ◽  
Protection Measures ◽  
Radar Images ◽  
X Band ◽  
First Results ◽  
Data Deficient

Cetaceans are protected species all over the world, most of them are vulnerable, endangered, or data deficient (according to International Union for Conservation of Nature - IUCN red list). X-band radars detect the echo of the electromagnetic signal reflected by an obstacle or a ship (target). The application of X-band radar to the detection of cetaceans is a new and innovative field of research that could improve the automation of marine mammal data collection, and this is the first time in the Mediterranean Sea. The aim of this work was to test the capability of X-band radar installed along the coast (ground-based) to detect and track cetaceans in a range of approximately 2.5 nautical miles from the radar antenna. Data collection included a part of field work, implemented through the acquisition of photographic images and target’s radar detection (by the panoramic terrace Santa Maria in Corniglia), and a part, performed in the laboratory, of data analysis. The work was undertaken between May and November 2018. During this period, 30 days of monitoring were carried out (about 300 h) and about 10,000 radar images were recorded. The first results showed that we were able to recognize the target “cetacean” from the other common targets (boats, buoys, etc.) detected by the radar. In particular 70 dolphins were sighted by visual census; 12 of them were recognized on radar images. Radar images allowed extraction of dolphin dive time (between 2 and 15 s). The next step will be to allow the radar to identify the presence of marine mammals itself since it also works at night and with low visibility. This technique could complement the protection measures of cetaceans, highlighting their presence at sea even if it is impossible with waves higher than 0.8 m and over distances greater than 2.5 km.

scholarly journals Two new species of Primulina (Gesneriaceae) from limestone karsts of China

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4946 ◽  
Author(s):  
Xin Hong ◽  
Zhong-Lin Li ◽  
Jia-Zhi Liu ◽  
Shou-Biao Zhou ◽  
Wei-Hua Qin ◽  
...  
Keyword(s):  
Corolla Tube ◽  
Field Work ◽  
Iucn Red List ◽  
Karst Area ◽  
Herbarium Specimens ◽  
Unknown Species ◽  
Extensive Field ◽  
Data Deficient ◽  
Terrestrial Biomes ◽  
Comprehensive Study

The limestone karst area of South China is a major biodiversity hotspot of global terrestrial biomes. During extensive field work on the Guangxi limestone formations, two unknown species of Gesneriaceae were collected. After conducting a comprehensive study of the literature and herbarium specimens, Primulina davidioides and P. hiemalis are recognized as two species new to science, and described and illustrated here. P. davidioides is morphologically close to P. lunglinensis based on the shape of the leaf and flower, but it can be easily distinguished by the shape of the bracts, corolla and stigma, indumentum of peduncles, pedicels and pistil and number of staminodes. P. hiemalis is closely relate to P. luzhaiensis in vegetative appearance, but differs in the shape of the calyx and stigma, number of bracts and staminodes, indumentum of the leaf blade and peduncle, and position of stamens in the corolla tube. Considering that not enough is known about their populations, it is proposed that their conservation statuses should currently be classed as data deficient (DD) according to the IUCN Red List Category and Criteria.

scholarly journals Present biodiversity status of loaches in the selected Hill-streams of Bangladesh

2015 ◽  
Vol 2 (2) ◽  
pp. 329-334
Author(s):  
Md Kamrul Hasan Akand ◽  
Mostafa Ali Reza Hossain ◽  
Md Shariful Islam
Keyword(s):  
Data Collection ◽  
Secondary Data ◽  
Iucn Red List ◽  
Red List ◽  
Ornamental Fish ◽  
Sample Collection ◽  
Fish Samples ◽  
Food Fish ◽  
Data Deficient ◽  
The Hill

A year-long survey was conducted to study the biodiversity status of freshwater loaches of Bangladesh. Data and sample collection were carried out in the hill-streams of Bangladesh in the three districts namely Sylhet, Netrokona and Dinajpur. Fish samples were also collected from Mymensingh district. The study was based on fish landing centre and fish market visit, on the spot data collection, interview of the fishermen and the fish traders, sample collection and secondary data collection. During the study, 12 loaches under 2 families were found. Among the collected loaches 8 are exclusively used as food fish and the rest 4 species can be considered as both food fish and ornamental fish. Among the total number of species found during the study, 2 loaches were threatened based on IUCN Red List. Among the loaches recorded in the survey, 2 are endangered (EN), 3 data deficient (DD) and 7 not threatened (NO). Among the collected loaches Botia dario, Botia lohachata and Lepidocephalichthys annandalei were very rare. The non-availability and less availability of some of the species indicate the alarming decline of the biodiversity of loaches in the surveyed area and in the country as a whole.Res. Agric., Livest. Fish.2(2): 329-334, August 2015

EDUCAÇÃO AMBIENTAL COMO SUBSIDIO A (RE)AVALIAÇÃO DAS FORMAS DE USO NA APA DO ESTUÁRIO DO RIO CEARÁ EM FORTALEZA

2019 ◽  
Vol 21 (2) ◽  
pp. 962-975
Author(s):  
Emerson Rodrigues Lima ◽  
Ana Carla Alves Gomes ◽  
Ícaro Paiva de Oliveira ◽  
Maria Lucia Brito da Cruz
Keyword(s):  
Data Collection ◽  
Environmental Education ◽  
Riparian Forest ◽  
Sustainable Use ◽  
Secondary Data ◽  
Field Work ◽  
Protection Area ◽  
Negative Impacts ◽  
Natural Dynamics ◽  
Del Rio

A pesquisa trata de uma análise da relação sociedade natureza no contexto da Área de Proteção Ambiental (APA) do rio Ceará e teve como objetivo principal o estudo dos impactos negativos sofridos a partir dessa interação, descrevendo os principais problemas ocasionados pela ocupação desordenada, como a intervenção nas dunas, poluição do mangue e desmatamento da mata ciliar, os quais condicionam a mudança da dinâmica natural do ambiente causando interferências paisagísticas e biológicas no local. O aporte teórico metodológico embasa-se nas teorias clássicas pertinentes, bem como levantamento de dados secundários, trabalho de campo e a técnica de geoprocessamento para a elaboração de material cartográfico. Os resultados demonstram a urgência em inserir práticas vinculadas a educação ambiental na APA, dessa forma, o trabalho visa servir de subsídio à conscientização da necessidade de preservação deste ambiente, recomendando, assim o diálogo entre a população e os órgãos responsáveis para garantir o uso sustentável da mesma.Palavras-chave: Conservação; Educação Ambiental; Análise Geoambiental. ABSTRACTThe research deals with an analysis of the relation nature-society in the context of the APA (Ambiental Protection Area) of Ceará River and it had as main objective the study of the negative impacts suffered from this interaction, describing the main problems caused by the disordered occupation, such as the intervention in the dunes, mangrove pollution and deforestation of the riparian forest, which condition the change of the natural dynamics of the environment causing landscape and biological interferences in the place. The theoretical methodological support is based on the relevant classical theories, as well as secondary data collection, field work and the geoprocessing technique for the preparation of cartographic material. The results show the urgency to insert practices related to environmental education in the APA, so this work aims to serve as a subsidy to raise awareness of the need to preserve this environment, recommending in this way the dialogue between the population and responsible bodies to ensure sustainable use of the same. Keywords: Conservation; Environmental education; Geoenvironmental Analysis. RESUMENLa investigación aborda un análisis de la relación de la sociedad de la naturaleza en el contexto del Área de Protección Ambiental (APA) del río Ceará y su objetivo principal fue el estudio de los impactos negativos sufridos por esta interacción, describiendo los principales problemas causados por la ocupación desordenada, como el intervención en las dunas, contaminación del manglar y deforestación del bosque ribereño, que condicionan el cambio de la dinámica natural del ambiente causando interferencia biológica y paisajística en el lugar. La base teórica metodológica se basa en las teorías clásicas relevantes, así como en la recolección secundaria de datos, el trabajo de campo y la técnica de geoprocesamiento para la preparación de material cartográfico. Los resultados demuestran la urgencia de insertar prácticas relacionadas con la educación ambiental en la APA, por lo tanto, el trabajo tiene como objetivo apoyar la conciencia de la necesidad de preservar este medio ambiente, recomendando así el diálogo entre la población y los organismos responsables para garantizar un uso sostenible de la misma.Palabras clave: Conservación; Educación ambiental; Análisis geoambiental.

scholarly journals A synthesis of African and western Indian Ocean Island mammal taxa (Class: Mammalia) described between 1988 and 2008: an update to Allen (1939) and Ansell (1989)

Zootaxa ◽  
2009 ◽  
Vol 2205 (1) ◽  
pp. 1-36 ◽  
Author(s):  
MICHAEL HOFFMANN ◽  
PETER GRUBB ◽  
COLIN P. GROVES ◽  
RAINER HUTTERER ◽  
ERIK VAN DER STRAETEN ◽  
...  
Keyword(s):  
New Species ◽  
Western Indian Ocean ◽  
Systematic Position ◽  
Iucn Red List ◽  
New Genera ◽  
New Subspecies ◽  
New Subgenus ◽  
African Mammals ◽  
The Status ◽  
Data Deficient

We provide a synthesis of all mammal taxa described from the African mainland, Madagascar and all surrounding islands in the 20 years since 1988, thereby supplementing the earlier works of G.M. Allen (1939) and W.F.H. Ansell (1989), and bringing the list of African mammals described over the last 250 years current to December 2008. We list 175 new extant taxa, including five new genera, one new subgenus, 138 new species and 31 new subspecies, including remarks, where relevant, on the current systematic position of each taxon. Names of seven species of primates are emended, according to the requirements of the ICZN. The taxonomic group in which the largest number of new taxa has been described is the Primates, with two new genera, 47 new species and 11 new subspecies, while geographically the biggest increase in new species descriptions has been on the island of Madagascar, accounting for roughly half (67) of all new species described in the past 20 years. Nearly half of all new species listed currently are assessed as Data Deficient on the IUCN Red List of Threatened Species (49 of 101 listed species) suggesting further research is urgently needed to help clarify the status of those recently described species.

scholarly journals Global extinction risk for seahorses, pipefishes and their near relatives (Syngnathiformes)

Oryx ◽  
2021 ◽  
pp. 1-10
Author(s):  
Riley A. Pollom ◽  
Gina M. Ralph ◽  
Caroline M. Pollock ◽  
Amanda C.J. Vincent
Keyword(s):  
Threatened Species ◽  
Habitat Degradation ◽  
Extinction Risk ◽  
Conservation Status ◽  
Field Research ◽  
Selective Extraction ◽  
Iucn Red List ◽  
Point Estimate ◽  
Conservation Action ◽  
Data Deficient

Abstract Few marine taxa have been comprehensively assessed for their conservation status, despite heavy pressures from fishing, habitat degradation and climate change. Here we report on the first global assessment of extinction risk for 300 species of syngnathiform fishes known as of 2017, using the IUCN Red List criteria. This order of bony teleosts is dominated by seahorses, pipefishes and seadragons (family Syngnathidae). It also includes trumpetfishes (Aulostomidae), shrimpfishes (Centriscidae), cornetfishes (Fistulariidae) and ghost pipefishes (Solenostomidae). At least 6% are threatened, but data suggest a mid-point estimate of 7.9% and an upper bound of 38%. Most of the threatened species are seahorses (Hippocampus spp.: 14/42 species, with an additional 17 that are Data Deficient) or freshwater pipefishes of the genus Microphis (2/18 species, with seven additional that are Data Deficient). Two species are Near Threatened. Nearly one-third of syngnathiformes (97 species) are Data Deficient and could potentially be threatened, requiring further field research and evaluation. Most species (61%) were, however, evaluated as Least Concern. Primary threats to syngnathids are (1) overexploitation, primarily by non-selective fisheries, for which most assessments were determined by criterion A (Hippocampus) and/or (2) habitat loss and degradation, for which assessments were determined by criterion B (Microphis and some Hippocampus). Threatened species occurred in most regions but more are found in East and South-east Asia and in South African estuaries. Vital conservation action for syngnathids, including constraining fisheries, particularly non-selective extraction, and habitat protection and rehabilitation, will benefit many other aquatic species.

scholarly journals Observing UT1-UTC with VGOS

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Rüdiger Haas ◽  
Eskil Varenius ◽  
Saho Matsumoto ◽  
Matthias Schartner
Keyword(s):  
Standard Deviation ◽  
Reference Frame ◽  
Earth Rotation ◽  
Space Observatory ◽  
International Earth Rotation ◽  
Onsala Space Observatory ◽  
X Band ◽  
First Results

AbstractWe present first results for the determination of UT1-UTC using the VLBI Global Observing System (VGOS). During December 2019 through February 2020, a series of 1 h long observing sessions were performed using the VGOS stations at Ishioka in Japan and the Onsala twin telescopes in Sweden. These VGOS-B sessions were observed simultaneously to standard legacy S/X-band Intensive sessions. The VGOS-B data were correlated, post-correlation processed, and analysed at the Onsala Space Observatory. The derived UT1-UTC results were compared to corresponding results from standard legacy S/X-band Intensive sessions (INT1/INT2), as well as to the final values of the International Earth Rotation and Reference Frame Service (IERS), provided in IERS Bulletin B. The VGOS-B series achieves 3–4 times lower formal uncertainties for the UT1-UTC results than standard legacy S/X-band INT series. The RMS agreement w.r.t. to IERS Bulletin B is slightly better for the VGOS-B results than for the simultaneously observed legacy S/X-band INT1 results, and the VGOS-B results have a small bias only with the smallest remaining standard deviation.

Towards Nonlinear Wave Reconstruction and Prediction From Synthetic Radar Images

2016 ◽  
Author(s):  
A. P. Wijaya
Keyword(s):  
Vertical Direction ◽  
Sea Surface ◽  
Sea State ◽  
Operational Effectiveness ◽  
State Reconstruction ◽  
Radar Images ◽  
First Results ◽  
Marine Radar ◽  
Offshore Activities

The use of remotely wave sensing by a marine radar is increasingly needed to provide wave information for the sake of safety and operational effectiveness in many offshore activities. Reconstruction of radar images needs to be carried out since radar images are a poor representation of the sea surface elevation: effects like shadowing and tilt determine the backscattered intensity of the images. In [1], the sea state reconstruction and wave propagation to the radar has been tackled successfully for synthetic radar images of linear seas, except for a scaling in the vertical direction. The determination of the significant wave height from the shadowed images only has been described in [2]. This paper will summarize these methods, and provides the first results for the extension to nonlinear seas.

scholarly journals BIMBINGAN ROHANI ISLAM DALAM MENUMBUHKAN RESPON SPIRITUAL ADAPTIF BAGI PASIEN STROKE DI RUMAH SAKIT ISLAM JAKARTA CEMPAKA PUTIH

2017 ◽  
Vol 36 (1) ◽  
pp. 45
Author(s):  
Zalussy Debby Styana ◽  
Yuli Nurkhasanah ◽  
Ema Hidayanti
Keyword(s):  
Qualitative Research ◽  
Data Collection ◽  
Adaptive Response ◽  
Research Data ◽  
Spiritual Guidance ◽  
Data Display ◽  
Medical Patients ◽  
Stroke Patients ◽  
First Results ◽  
Mild Stroke

<p>This study is a qualitative reseachthat aims to describe how the spiritual guidance of Islam in cultivating spiritual adaptive response for stroke patients in hospitals Islam CempakaPutih Jakarta. This research is qualitative research. Source of research data is binroh officers as well as all stroke patients with mild stroke were treated qualification and post-stroke patients who are undergoing physiotherapy in Jakarta, CempakaPutih RSI. Methods of data collection using interviews, observation, and documentation. The first results showed that stroke patients had a spiritual response adaptive, second, implementation of Islamic spiritual guidance in cultivating spiritual response is adaptive stroke patients with stroke patients to visit. Efforts are being made binroh officers to cultivate spiritual adaptive response is to encourage motivation, suggestion, support and education of worship during illness, such as providing guidance procedures for prayer, ablution, tayammum and exercising. Not only officer binroh who provide spiritual touch but all stakeholders in the hospital as nurses, physiotherapists, doctors, etc. also participated giving spiritual touch, the facilities and the best service both medical and non-medical patients, so that patients become optimistic about the pain and able to achieve adaptive spiritual response.</p><p align="center"><strong>***</strong></p><p>Penelitian ini merupakan penelitian kualitatif yang bertujuan untuk mendiskripsikan bagaimana bimbingan rohani Islam dalam menumbuhkan respon spiritual adaptif bagi pasien stroke di rumah sakit Islam Jakarta Cempaka Putih. Jenis penelitian ini merupakan penelitian kualitatif. Sumber data penelitian adalah petugas binroh serta seluruh pasien stroke dengan kualifikasi stroke ringan yang dirawat dan pasien pasca stroke yang sedang menjalani fisioterapi di RSI Jakarta Cempaka Putih. Metode pengumpulan data menggunakan wawancara, observasi, dan dokumentasi. Metode analisis data menggunakan model Miles dan Huberman, meliputi data reduction, data display, conclusion. Hasil penelitian menunjukkan bahwa pertama pasien stroke memiliki respon spiritual adaptif, kedua, Pelaksanaan bimbingan rohani Islam dalam menumbuhkan respon spiritual adaptif pasien stroke adalah dengan visit ke pasien stroke. Upaya yang dilakukan petugas binroh untuk menumbuhkan respon spiritual adaptif adalah dengan memberikan semangat motivasi, sugesti, support dan edukasi ibadah selama sakit, seperti memberikan tuntunan tatacara sholat, wudhu, tayammum beserta prakteknya. Tidak hanya petugas binroh saja yang memberikan sentuhan rohani tetapi seluruh stakeholder yang ada dirumah sakit seperti perawat, fisioterapis, dokter dll juga ikut serta memberikan sentuhan rohani, fasilitas dan pelayanan terbaik medis maupun non medis kepada pasien, sehingga pasien menjadi optimis terhadap sakitnya dan mampu mencapai respon spiritual adaptif.</p>

scholarly journals URBAN SPRAWL IN SMALL CITIES, ANALYSIS OF THE MUNICIPALITY OF SÃO PEDRO (SP): POTENTIALS AND CONSTRAINS

2013 ◽  
pp. 64-73 ◽  
Author(s):  
Priscila Carrara Fracassi ◽  
José Augusto Lollo
Keyword(s):  
Data Collection ◽  
Present Article ◽  
Urban Sprawl ◽  
Field Work ◽  
Limiting Factors ◽  
Soil Conditions ◽  
Mass Movements ◽  
Small Cities ◽  
Natural Factors

Urban sprawl in small cities has led to the occupation of unsuitable areas, resulting in peripheralization and in the occupation of fragile environments. In these occupations, the physical characteristics of the environment are often disrespected. In this context, the present article reports on a case study in the municipality of São Pedro, state of São Paulo, Brazil, which presents and discuss a set of natural factors (geological and geomorphological) conditioning the occurrence of erosion and gravitational mass movements, which are limiting factors for urban sprawl. The methodology employed in this study was based on field work, bibliographic research, and data collection, analysis and GIS-based systematization, which allowed for a spatial reading of the urban sprawl to indicate, from different perspectives, how the phenomenon is manifested. Thus, it was possible to draw up a chart highlighting the areas with the greatest potential for occupation and those with restrictions due to their greater susceptibility to erosion and mass movements. The main identified natural factors of restriction were steepness and soil conditions and law enforced restrictions (environmental protection areas).

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