scholarly journals First Results of a Near IR Monitoring Program of OH/IR Stars

1993 ◽  
Vol 155 ◽  
pp. 330-330
Author(s):  
P. García-Lario ◽  
D. Engels ◽  
A. Manchado

We present the first results of a long-term monitoring program of observations in the near infrared of a selected sample of OH/IR stars included in the IRAS Point Source Catalogue. The observations have been made using the 1.5m Sanchez Magro Telescope (SMT) at Izaña (Tenerife, Spain) since the beginning of 1991 and are still in progress. They are being complemented with observations made using the 1m ESO photometric telescope (La Silla, Chile). The sample includes 30 OH/IR stars with a variety of infrared and OH maser luminosities, expansion velocities, LRS classes and position in the IRAS two-colour diagram.

2016 ◽  
Vol 23 (4) ◽  
pp. 501-524 ◽  
Author(s):  
Robert Buchsbaum ◽  
Christopher W. Leahy ◽  
Taber Allison

Author(s):  
Gabor von Bethlenfalvy ◽  
Julia Hindersin ◽  
Egbert Strauß

The case study used spotlight strip census routes to estimate Brown Hare numbers in a 793 ha hunting district. The habitats, dominated by intensively farmed arable land were also mapped. This is part of a Germany-wide long-term monitoring program of game populations which is carried out by hunters and was initiated by the German Hunters’ Association and the Hunters’ Association of Lower Saxony in 2001.


2015 ◽  
Vol 45 (3) ◽  
pp. 293-298 ◽  
Author(s):  
Leonardo Fernandes GOMES ◽  
Ludgero Cardoso Galli VIEIRA ◽  
Marie Paule BONNET

The use of substitute groups in biomonitoring programs has been proposed to minimize the high financial costs and time for samples processing. The objectives of this study were to evaluate the correlation between (i) the spatial distribution among the major zooplankton groups (cladocerans, copepods, rotifers, and testaceans protozoa), (ii) the data of density and presence/absence of species, and (iii) the data of species, genera, and families from samples collected in the Lago Grande do Curuai, Pará, Brazil. A total of 55 sample of the zooplanktonic community was collected, with 28 samples obtained in March and 27 in September, 2013. The agreement between the different sets of data was assessed using Mantel and Procrustes tests. Our results indicated high correlations between genus level and species level and high correlations between presence/absence of species and abundance, regardless of the seasonal period. These results suggest that zooplankton community could be incorporated in a long-term monitoring program at relatively low financial and time costs.


2004 ◽  
Vol 20 (2) ◽  
pp. 121-129 ◽  
Author(s):  
Charles W. Boylen ◽  
Eric A. Howe ◽  
Jeffrey S. Bartkowski ◽  
Lawrence W. Eichler

2018 ◽  
Vol 39 (suppl_1) ◽  
Author(s):  
C Gopalakrishnan ◽  
K F Huybrechts ◽  
A S Ortiz ◽  
K Zint ◽  
V K Gurusamy ◽  
...  

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