Entity

Time filter

Source Type

Manokwari, Indonesia

Universitas Negeri Papua is a university in Manokwari, in the province West Papua, Indonesia. The current rector is Prof. Dr. Ir. Frans Wanggai.The university was founded on November 3, 2000. Previously, it was part of the Faculty of Agriculture of Cendrawasih University, based in Jayapura. The university teaches Economics, Forestry, Agriculture and Earth science.The university consists of six faculties: Faculty of Agriculture - Dean: Ir Onesimus Kambuaya,MS, Faculty of Forestry - Dean: Ir Hans Arwam, Faculty of Animal Husbandry- Dean: Ir. A.L. Killian, Faculty of Science - Dean: Ir Agustinus Kilmaskossu, Faculty of Economics - Dean: Ir. YP Karafir, Faculty of Letters - Dean: Suriel Mofu.The university is situated on a hill overlooking the beautiful landscape surrounding Manokwari. Wikipedia.


Widyastuti S.M.,Gadjah Mada University | Tasik S.,State University of Papua | Harjono,Gadjah Mada University
Agrivita | Year: 2013

Fusarium oxysporum is the causal agent of damping-off disease.The fungus attacks seedlings of many plant species, including Acacia mangium. In order to effectively control the disease, detailed information on how the fungus infects seedlings of A. mangium and how the plant responds to the fungal infection is essentially needed. The objectives of this research were to investigate: (1) the infection process of F. oxysporumon seedlings of A. mangium, (2) the defence response of A. mangium seedling to infection by F. oxysporum. The fungal pathogen was identified, followed by performance of pathogenicity test. The infection process was followed by macroscopic observation as well as microscopic observation. The result indicated that fungal spore germination was observed at two-day post inoculation in planta. At four-day post inoculation, hyphae of F. oxysporum had penetrated the collar root of A. mangium seedling via stomata aperture. In addition, fungal hyphae had grown intercellulary into the vascular tissue. Correspondingly, hypersensitive response was also detected at the stomata aperture. However, this defence mechanism is not effective in stopping the fungus since F. oxysporum is a necrotropic pathogen. Moreover, accumulation of lignin, but not callose, was observed.


Maturbongs R.A.,State University of Papua | Dransfield J.,Royal Botanic Gardens | Baker W.J.,Royal Botanic Gardens
Phytotaxa | Year: 2014

Calamus kebariensis (Arecaceae or Palmae), a new species of rattan from the Bird's Head Peninsula in West Papua, Indonesia, is described and illustrated. This species, which, among the New Guinea Calamus species, most closely resembles C. cuthbertsonii and C. spanostachys, is distinguished by its short and extremely slender stems, finely pinnate leaves and short, erect inflorescences that are branched to one order only in pistillate specimens. © 2014 Magnolia Press.


De Boer T.S.,Boston University | Naguit M.R.A.,Jose Rizal University | Erdmann M.V.,Conservation International Indonesia Marine Program Jl | Erdmann M.V.,California Academy of Sciences | And 5 more authors.
Bulletin of Marine Science | Year: 2014

Marine habitats are in decline worldwide, precipitating a strong interest in marine conservation. The use of biogeographic data to designate ecoregions has had significant impacts on terrestrial conservation efforts. However, classification of marine environments into ecoregions has only become available in the last several years, based on biogeographic data supplemented by geomorphology, ocean currents, and water temperatures. Here we use a comparative phylogeographic approach to test for concordant phylogeographic patterns in three closely related species of Tridacna giant clams across the Coral Triangle, the most biodiverse marine region in the world and one of the most threatened. Data from a 450 base pair fragment of mitochondrial cytochrome-c oxidase subunit one DNA from 1739 giant clams across Indonesia and the Philippines show strong concordance between phylogeographic patterns in three species of giant clams as well as evidence for potentially undescribed species within the genus. Phylogeographic patterns correspond broadly to marine ecoregions proposed by Spalding et al. (2007), indicating that processes contributing to biogeographic boundaries likely also limit genetic connectivity across this region. These data can assist with designing more effective networks of marine protected areas by ensuring that unique biogeographic and phylogeographic regions are represented in regional conservation planning.© 2014 Rosenstiel School of Marine and Atmospheric Science of the University of Miami.


De Boer T.S.,Boston University | Naguit M.R.A.,Jose Rizal Memorial State College | Naguit M.R.A.,Silliman University | Erdmann M.V.,Wildlife Conservation Society | And 6 more authors.
Bulletin of Marine Science | Year: 2014

The boring giant clam, Tridacna crocea Lamarck, 1819, is a CITES-listed bivalve that is declining due to overharvest and environmental degradation. Previous molecular studies in the Coral Triangle using mitochondrial DNA indicated the presence of deep phylogenetic divergence and strong phylogeographic structure across this region, suggesting the possibility of multiple cryptic species. In the present study, we compare data from non-recombining mitochondrial (mtDNA; cytochrome oxidase subunit 1, COI) and eight microsatellite loci to better understand patterns of genetic structure and species boundaries in T. crocea populations across Indonesia and the Philippines. Microsatellite loci and mtDNA data from 618 individuals representing 27 populations revealed highly concordant phylogeographic patterns and identified three genetically distinct regions: (1) Western Indonesia, (2) Philippines and Central Indonesia, and (3) Eastern Indonesia. Both marker types also showed evidence of isolation by distance. These results build on previous studies and confirm the presence of only three genetic partitions and the genetic isolation of Western Indonesia and Eastern Indonesia. However, individual admixture analyses based on microsatellite data show that the mtDNA clade that defines a phylogeographic province spanning the Philippines and Central Indonesia is a mixture of unique genetic clusters from the Philippines/ Central Indonesia and Eastern Indonesia. The admixture of nuclear loci from individuals with regionally distinct mtDNA genomes suggests that despite deep genetic divisions, the three mitochondrial lineages are likely not distinct species and that some populations in Central Indonesia may be a sink for genetic diversity accumulated from populations to the north and east. While microsatellite data refined our understanding of the biology and evolutionary history of T. crocea, the broad concordance between these markers highlights the continued utility of mtDNA, particularly in developing biodiversity-rich countries where resources to support biodiversity science are limited.© 2014 Rosenstiel School of Marine and Atmospheric Science of the University of Miami.


Seminoff J.A.,National Oceanic and Atmospheric Administration | Benson S.R.,National Oceanic and Atmospheric Administration | Arthur K.E.,University of Hawaii at Manoa | Eguchi T.,National Oceanic and Atmospheric Administration | And 4 more authors.
PLoS ONE | Year: 2012

Effective conservation strategies for highly migratory species must incorporate information about long-distance movements and locations of high-use foraging areas. However, the inherent challenges of directly monitoring these factors call for creative research approaches and innovative application of existing tools. Highly migratory marine species, such as marine turtles, regularly travel hundreds or thousands of kilometers between breeding and feeding areas, but identification of migratory routes and habitat use patterns remains elusive. Here we use satellite telemetry in combination with compound-specific isotope analysis of amino acids to confirm that insights from bulk tissue stable isotope analysis can reveal divergent migratory strategies and within-population segregation of foraging groups of critically endangered leatherback sea turtles (Dermochelys coriacea) across the Pacific Ocean. Among the 78 turtles studied, we found a distinct dichotomy in δ15N values of bulk skin, with distinct "low δ15N" and "high δ15N" groups. δ15N analysis of amino acids confirmed that this disparity resulted from isotopic differences at the base of the food chain and not from differences in trophic position between the two groups. Satellite tracking of 13 individuals indicated that their bulk skin δ15N value was linked to the particular foraging region of each turtle. These findings confirm that prevailing marine isoscapes of foraging areas can be reflected in the isotopic compositions of marine turtle body tissues sampled at nesting beaches. We use a Bayesian mixture model to show that between 82 and 100% of the 78 skin-sampled turtles could be assigned with confidence to either the eastern Pacific or western Pacific, with 33 to 66% of all turtles foraging in the eastern Pacific. Our forensic approach validates the use of stable isotopes to depict leatherback turtle movements over broad spatial ranges and is timely for establishing wise conservation efforts in light of this species' imminent risk of extinction in the Pacific.

Discover hidden collaborations