Determining Relative Abundance and Distribution Patterns of Insect Pests

2019 ◽  
pp. 27-32
Author(s):  
T. Prabhulinga ◽  
A. D. N. T. Kumar
Keyword(s):  
Relative Abundance ◽  
Insect Pests ◽  
Distribution Patterns ◽  
Abundance And Distribution

scholarly journals Cysteine-Free Proteins in the Immunobiology of Arthropod-Borne Diseases

2010 ◽  
Vol 2010 ◽  
pp. 1-10 ◽  
Author(s):  
J. Santiago Mejia ◽  
Erik N. Arthun ◽  
Richard G. Titus
Keyword(s):  
Plasmodium Falciparum ◽  
Amino Acid ◽  
Distribution Patterns ◽  
Structural Features ◽  
Structure And Function ◽  
Cysteine Residues ◽  
Distribution Analysis ◽  
And Function ◽  
Abundance And Distribution ◽  
Host Parasite

One approach to identify epitopes that could be used in the design of vaccines to control several arthropod-borne diseases simultaneously is to look for common structural features in the secretome of the pathogens that cause them. Using a novel bioinformatics technique, cysteine-abundance and distribution analysis, we found that many different proteins secreted by several arthropod-borne pathogens, includingPlasmodium falciparum, Borrelia burgdorferi, and eight species of Proteobacteria, are devoid of cysteine residues. The identification of three cysteine-abundance and distribution patterns in several families of proteins secreted by pathogenic and nonpathogenic Proteobacteria, and not found when the amino acid analyzed was tryptophan, provides evidence of forces restricting the content of cysteine residues in microbial proteins during evolution. We discuss these findings in the context of protein structure and function, antigenicity and immunogenicity, and host-parasite relationships.

scholarly journals RELATIVE ABUNDANCE AND DISTRIBUTION OF THE TRUE SPIDER FAMILIES IN ASSUIT GOVERNORATE

2012 ◽  
Vol 3 (2) ◽  
pp. 81-89
Author(s):  
A. Metwaly ◽  
M. Abd El-Kader ◽  
S. Montaser ◽  
M. Ahmed ◽  
H. Qurany
Keyword(s):  
Relative Abundance ◽  
Abundance And Distribution

scholarly journals Modeling the spatial structure of the endemic mara (Dolichotis patagonum) across modified landscapes

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6367 ◽  
Author(s):  
Milagros Antún ◽  
Ricardo Baldi
Keyword(s):  
Spatial Structure ◽  
Spatial Variation ◽  
Spatial Models ◽  
Distribution Patterns ◽  
Negative Consequences ◽  
Human Presence ◽  
Species Response ◽  
Conservation Actions ◽  
Density Surface ◽  
Abundance And Distribution

Across modified landscapes, anthropic factors can affect habitat selection by animals and consequently their abundance and distribution patterns. The study of the spatial structure of wild populations is crucial to gain knowledge on species’ response to habitat quality, and a key for the design and implementation of conservation actions. This is particularly important for a low-density and widely distributed species such as the mara (Dolichotis patagonum), a large rodent endemic to Argentina across the Monte and Patagonian drylands where extensive sheep ranching predominates. We aimed to assess the spatial variation in the abundance of maras and to identify the natural and anthropic factors influencing the observed patterns in Península Valdés, a representative landscape of Patagonia. We conducted ground surveys during the austral autumn from 2015 to 2017. We built density surface models to account for the variation in mara abundance, and obtained a map of mara density at a resolution of four km2. We estimated an overall density of 0.93 maras.km−2 for the prediction area of 3,476 km2. The location of ranch buildings, indicators of human presence, had a strong positive effect on the abundance of maras, while the significant contribution of the geographic longitude suggested that mara density increases with higher rainfall. Although human presence favored mara abundance, presumably by providing protection against predators, it is likely that the association could bring negative consequences for maras and other species. The use of spatial models allowed us to provide the first estimate of mara abundance at a landscape scale and its spatial variation at a high resolution. Our approach can contribute to the assessment of mara population abundance and the factors shaping its spatial structure elsewhere across the species range, all crucial attributes to identify and prioritize conservation actions.

scholarly journals A Preliminary Survey of Amphibians and Reptiles in around Gulbarga University Campus, Karnataka, India

2014 ◽  
Vol 27 ◽  
pp. 67-71
Author(s):  
Murali Jadesh ◽  
Parshuram Kamble ◽  
K. Manjunath ◽  
K. Ravikiran ◽  
Sharanappa Padashetty
Keyword(s):  
Species Composition ◽  
Relative Abundance ◽  
Survey Methods ◽  
Preliminary Survey ◽  
University Campus ◽  
Visual Estimation ◽  
Abundance And Distribution

The study involves survey of amphibian and reptile in and around Gulbarga University Campus. Survey was conducted from Jan 2012 to March 2013. The survey methods involved careful visual estimation of amphibians and reptilian in all the possible habitats present in the study area. The objective of the study included evaluate of species composition, relative abundance and distribution of amphibian and reptile of the chosen area. During survey a total of 16 species of herpetofauna identified belonging to 12 families, which includes 9 species of snakes, 4 species amphibians, 3 species of lizards

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