Do habitat size and shape modify abiotic factors and communities in artificial treeholes?

2006 ◽  
Vol 7 (2) ◽  
pp. 211-222 ◽  
Author(s):  
N. Harlan ◽  
C. Paradise
Keyword(s):  
Abiotic Factors ◽  
Habitat Size ◽  
Size And Shape

Scopinella gallicola, a new species from rust galls of Endocronartium harknessii on Pinus contorta

1981 ◽  
Vol 59 (7) ◽  
pp. 1192-1195 ◽  
Author(s):  
A. Tsuneda ◽  
Y. Hiratsuka
Keyword(s):  
New Species ◽  
Pinus Contorta ◽  
Habitat Size ◽  
Size And Shape ◽  
Endocronartium Harknessii ◽  
A New Species

A new species of Scopinella is described and illustrated. This species, Scopinella gallicola, occurs on Pinus contorta galls caused by Endocronartium harknessii. It differs from previously described species mainly in its unusual habitat, size, and shape of the ascocarp, and two- and four-spored asci. The Harziella anamorph is also described. No anamorph has been reported in other species.

scholarly journals LOS HABITATS COSTEROS DE LOS JUVENILES DE PECES EN LA REGION DE PUNTA GLORIA A LA ISLA DE SALAMANCA, CARIBE COLOMBIANO

2016 ◽  
Vol 14 ◽  
Author(s):  
Edith González Afanador
Keyword(s):  
Coastal Lagoons ◽  
Abiotic Factors ◽  
Juvenile Fish ◽  
Habitat Size ◽  
Habitat Types ◽  
Shallow Marine ◽  
Surface Water Salinity ◽  
The Caribbean ◽  
Systematic List ◽  
The City

This paper presents the results of an ecological field study of coastal habitats occupied by juvenile fishes, conducted from June 1979 to May 1980 in a segment of coast between Punta Gloria, SE of the city of Santa Marta and the Isla de Salamanca in the Caribbean coast of Colombia. Four habitat types were studied: very shallow marine shores, coastal lagoons (Punta Gloria and Costa Verde) and a estuary mouth (Ciénaga Grande); their ecological characteristics are described. Abiotic factors studied were surface water salinity and temperature, of which relationship with climatic and hidrological regimes is discussed. Adittionaly, changes in habitat size shape are described. A systematic list of collected fish species is presented, and an estimation of juvenile fish relative abundance per biotope is made and analysed in relation to abiotic factors.

Age structure and density of red-capped robin populations vary with habitat size and shape

1999 ◽  
Vol 36 (6) ◽  
pp. 901-908 ◽  
Author(s):  
Richard E. Major ◽  
Fiona J. Christie ◽  
Greg Gowing ◽  
Tessa J. Ivison
Keyword(s):  
Age Structure ◽  
Habitat Size ◽  
Size And Shape

Unbiased estimation of particle number and sizes using the new stereological tools: the disector, the fractionator, the selector, and the nucleator — or just point-sampled intercepts

1988 ◽  
Vol 46 ◽  
pp. 428-429
Author(s):  
H.J.G. Gundersen
Keyword(s):  
Particle Number ◽  
Small Distance ◽  
Parallel Plane ◽  
Unbiased Estimation ◽  
Severe Problem ◽  
New Era ◽  
Size And Shape ◽  
Distinct Property ◽  
Sectioned Tissue

Previously, all stereological estimation of particle number and sizes were based on models and notoriously gave biased results, were very inefficient to use and difficult to justify. For all references to old methods and a direct comparison with unbiased methods see recent reviews.The publication in 1984 of the DISECTOR, the first unbiased stereological probe for sampling and counting 3—D objects irrespective of their size and shape, signalled the new era in stereology — and give rise to a number of remarkably simple and efficient techniques based on its distinct property: It is the only known way to obtain an unbiased sample of 3-D objects (cells, organelles, etc). The principle is simple: within a 2-D unbiased frame count or sample only cells which are not hit by a parallel plane at a known, small distance h.The area of the frame and h must be known, which might sometimes in itself be a problem, albeit usually a small one. A more severe problem may arise because these constants are known at the scale of the fixed, embedded and sectioned tissue which is often shrunken considerably.

The influence of confocal microscope design on imaging performance

1993 ◽  
Vol 51 ◽  
pp. 144-145
Author(s):  
C J R Sheppard
Keyword(s):  
Image Quality ◽  
Fluorescence Imaging ◽  
Confocal Microscope ◽  
Industrial Applications ◽  
Three Dimensions ◽  
Design Parameters ◽  
Weak Signals ◽  
Size And Shape ◽  
Imaging Performance ◽  
Fundamental Limitation

The confocal microscope is now widely used in both biomedical and industrial applications for imaging, in three dimensions, objects with appreciable depth. There are now a range of different microscopes on the market, which have adopted a variety of different designs. The aim of this paper is to explore the effects on imaging performance of design parameters including the method of scanning, the type of detector, and the size and shape of the confocal aperture.It is becoming apparent that there is no such thing as an ideal confocal microscope: all systems have limitations and the best compromise depends on what the microscope is used for and how it is used. The most important compromise at present is between image quality and speed of scanning, which is particularly apparent when imaging with very weak signals. If great speed is not of importance, then the fundamental limitation for fluorescence imaging is the detection of sufficient numbers of photons before the fluorochrome bleaches.

SIZE AND SHAPE OF CRYSTAL FACES ON HEATED METAL TIPS

1984 ◽  
Vol 45 (C9) ◽  
pp. C9-29-C9-37
Author(s):  
Vu Thien Binh ◽  
M. Drechsler
Keyword(s):  
Size And Shape ◽  
Heated Metal

Computational Technique for the Qualification of Focal Spot Size and Shape of Industrial Radioscopy Equipment Using Star Patterns

2020 ◽  
Vol 78 (4) ◽  
pp. 479-486
Author(s):  
Marcela Tatiana Fernandes Beserra ◽  
◽  
Ricardo Tadeu Lopes ◽  
Davi Ferreira de Oliveira ◽  
Claudio Carvalho Conti ◽  
...  
Keyword(s):  
Focal Spot ◽  
Spot Size ◽  
Computational Technique ◽  
Focal Spot Size ◽  
Size And Shape
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