The impact of gnawing by Microcavia australis on the survival of Geoffroea decorticans plants was studied in the Monte Desert of Argentina. Sampled ( ) plants N s 105 were selected randomly from two different colonies of M. australis. For each plant sampled the following properties were measured: the diameter of the trunk at ground level; the distance to the nearest burrow of M. australis; the ...

Background: Marine seaweeds synthesize different types of compounds with various biological activities, including anti-tuberculosis and anticancer effects. Objective: The aim of this study was to evaluate anti tuberculosis of Padina australis and cytotoxicity of different fractions of this seaweed. Methods: Padina australis was collected from coasts of Persian Gulf, identified and e...

There has been considerable concern for the past few decades about the excessive use of chemical pesticides both in agriculture and for control of vector borne diseases. It has become increasingly difficult to control mosquitoes that serve as vector for various diseases. The present project was undertaken to assess the efficacy of certain plant extracts as larvicides E dipa show your corvette a...

Interactions between introduced plants and soils they colonize are central to invasive species success in many systems. Belowground biotic and abiotic changes can influence the success of introduced species as well as their native competitors. All plants alter soil properties after colonization but, in the case of many invasive plant species, it is unclear whether the strength and direction of ...

We experimentally investigated the interactions between two parasites known to manipulate their host's phenotype, the trematodes Acanthoparyphium sp. and Curtuteria australis, which infect the cockle Austrovenus stutchburyi. The larval stages of both species encyst within the tissue of the bivalve's muscular foot, with a preference for the tip of the foot. As more individuals accumulate at that...

Invasive species pose one of the greatest threats to global biodiversity. Early detection invasive is critical in order prevent or manage their spread before they exceed ability land management groups control them. Optical remote sensing has been established as a useful technology for early and mapping vegetation populations. Through use airborne hyperspectral imagery (HSI), this study establis...