Forest Research Institute

About: Forest Research Institute is a facility organization based out in Dehra Dūn, India. It is known for research contribution in the topics: Population & Forest management. The organization has 5320 authors who have published 7625 publications receiving 185876 citations.

Fumigant antifungal activity of Myrtaceae essential oils and constituents from Leptospermum petersonii against three Aspergillus species.

Abstract: Commercial plant essential oils obtained from 11 Myrtaceae plant species were tested for their fumigant antifungal activity against Aspergillus ochraceus, A. flavus, and A. niger. Essential oils extracted from Leptospermum petersonii at air concentrations of 56 × 10(-3) mg/mL and 28 × 10(-3) mg/mL completely inhibited the growth of the three Aspergillus species. However, at an air concentration of 14 × 10(-3) mg/mL, inhibition rates of L. petersonii essential oils were reduced to 20.2% and 18.8% in the case of A. flavus and A. niger, respectively. The other Myrtaceae essential oils (56 × 10(-3) mg/mL) only weakly inhibited the fungi or had no detectable affect. Gas chromatography-mass spectrometry analysis identified 16 compounds in L. petersonii essential oil. The antifungal activity of the identified compounds was tested individually by using standard or synthesized compounds. Of these, neral and geranial inhibited growth by 100%, at an air concentration of 56 × 10(-3) mg/mL, whereas the activity of citronellol was somewhat lover (80%). The other compounds exhibited only moderate or weak antifungal activity. The antifungal activities of blends of constituents identified in L. petersonii oil indicated that neral and geranial were the major contributors to the fumigant and antifungal activities.

Palaearctic oak gallwasps galling oaks (Quercus) in the section Cerris: Re-appraisal of generic limits, with descriptions of new genera and species (Hymenoptera: Cynipidae: Cynipini)

Abstract: We discuss the taxonomy of oak gallwasps (Hymenoptera: Cynipidae: Cynipini) whose lifecycle involves only Palaearctic oaks (Quercus subgen Quercus) in the section Cerris Recent phylogenetic reconstructions support a deep split between such Cerris-associated species in the genera Aphelonyx, Dryocosmus, Plagiotrochus, Neuroterus, Pseudoneuroterus and species and genera associated with oaks in the section Quercus sensu stricto We reappraise the generic limits of the Cerris-associated genera, proposing new limits for Dryocosmus, Pseudoneuroterus and Neuroterus, establishing a new genus Cerroneuroterus, elevating Latuspina to a genus level, reestablishing the genera Chilaspis and Trichagalma and proposed new species name combinations We provide a new key to oak gallwasp genera of the Palaearctic and keys to all species of genera associated with Cerris section oaks We describe five new species, Aphelonyx kordestanica, Trichagalma formosana, Dryocosmus jungalii, Pseudoneuroterus mazandarani, and P nichollsi

Multivariate analysis of landscape wildfire dynamics in a Mediterranean ecosystem of Greece

Abstract: This paper focuses on spatial distribution of long-term fire patterns versus physical and anthropogenic elements of the environment that determine wildfire dynamics in Greece. Logistic regression and correspondence analysis were applied in a spatial database that had been developed and managed within a Geographic Information System. Cartographic fire data were statistically correlated with basic physical and human geography factors (geomorphology, climate, land use and human activities) to estimate the degree of their influence at landscape scale. Land cover types of natural and agricultural vegetation were the most influential factors for explaining landscape wildfire dynamics in conjunction with topography and grazing.

Phylogeny and Recircumscription of Artocarpeae (Moraceae) with a Focus on Artocarpus

Abstract: Moraceae is a large (∼1,050 species) primarily tropical family with several economically and ecologically important species. While its monophyly has been well supported in recent studies, relationships within the family at the tribal level and below remain unresolved. Delimitation of the tribe Artocarpeae has been particularly difficult. Classifications based on morphology differ from those based on phylogenetic studies, and all treatments include highly heterogeneous assemblages of genera that seem to represent a cross section of the family. We evaluated chloroplast and nuclear DNA sequence data for 60 Moraceae taxa representing all genera that have been included in past treatments of Artocarpeae and also included species from several other Moraceae tribes and closely related families as outgroups. The data were analyzed using maximum parsimony and maximum likelihood methods and indicate that none of the past treatments of Artocarpeae represent a monophyletic lineage. We present the most complet...

Population biology of the ship rat and Norway rat in Pureora Forest Park, 1983–87

Abstract: J. G. INNESLandcare ResearchPrivate Bag 3127Hamilton, New ZealandC. M. KINGDepartment of Biological SciencesUniversity of WaikatoPrivate Bag 3105Hamilton, New ZealandM. FLUX230 Belmont Hill RoadLower Hutt, New ZealandM. O. KIMBERLEYNew Zealand Forest Research InstitutePrivate Bag 3020Rotorua, New ZealandAbstract Populations of ship rats {Rattus rattus)and Norway rats (R. nofvegicus) were sampled overthe five years 1983-87 at Pureora Forest Park, byFenn and rat kill-traps every three months. Fenn andrat traps recorded similar capture rates in compara-ble habitats, although Fenns caught more heavy andfewer young rats. Ship rats (n = 1793 collected) weremore abundant, heavier and larger in native forest,regardless of logging history, than in exotic forestof any age. Young ship rats (age classes 1-3) weremost abundant in unlogged interior native forest, andin autumn and winter after summer and autumnbreeding. Capture rates declined after peaking in1985, probably due to reduced recruitment of youngrats following lower pregnancy rates in adult fe-males. The irregular annual seasonal cycle of repro-duction and abundance observed at Pureora is thesame as that described for non-commensal ship rat