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Baybay, Philippines

The Visayas State University is a premier university in the Philippines located at the city Baybay, Leyte, Philippines. It is one of the leading universities in Southeast Asia for research in agriculture. The five-campus VSU system has eight colleges, three institutes and one school. Located in the main campus are the College of Veterinary Medicine, College of Engineering, College of Education, College of Forestry and Environmental Science, College of Arts and Science, College of Nursing, College of Management and Economics,College of Agriculture and Food science, Institute of Strategic Research and Development Studies, and the Graduate School and Special Programs.Visayas State University is the only university in the Visayas acknowledged by the Philippine Department of Tourism as a tourist destination because of its diverse flora and fauna bounding the mainland and sea from side to side. With Mount Pangasugan and the Camotes Sea as VSU's backdrop, it makes the university distinctive from any other colleges and universities in the region. VSU administration is currently promoting the school as a "Resort University" for it has resorts, seafront suites, cottages, and bungalows catering to visitors and tourists coming over to the university.The Main Campus has an Open University which takes care of the distance education program. Its external campuses which are located in the different parts of Leyte are the College of Fisheries , College of Industrial Technology , College of Environmental and Agricultural Technology , College of Education and Agricultural Technology .It continues to specialize in agricultural research and education, including work in jatropha propagation for the production of biofuel and development of a dwarf macapuno coconut and root-crops, particularly, sweet potato, cassava and yam. The university also hosts a program on rain forestation, making VSU as the only school in the Visayas to be labeled as a "Dark Green School" by the Environmental Education Network of the Philippines.Programs are available in Agro-Industry, Information Technology, Hospitality Management, Tropical Ecology, Veterinary Medicine, Forestry, Fishery, and Food Science and Technology.The 1,099-hectare campus hosts 193 buildings composed of academic departments, research and trainings centers, staff and student housing facilities and other vital structures.The University is home to faculty and academic staff obtaining most of their local and international recognitions in research and development, 92 of whom are Ph. D. degree holders, 110 MS degree holders and 72 BS degree holders from reputable colleges and universities here and abroad. Wikipedia.

Pinsky M.L.,Stanford University | Montes Jr. H.R.,Visayas State University | Palumbi S.R.,Stanford University

Robust estimates of dispersal are critical for understanding population dynamics and local adaptation, as well as for successful spatial management. Genetic isolation by distance patterns hold clues to dispersal, but understanding these patterns quantitatively has been complicated by uncertainty in effective density. In this study, we genotyped populations of a coral reef fish (Amphiprion clarkii) at 13 microsatellite loci to uncover fine-scale isolation by distance patterns in two replicate transects. Temporal changes in allele frequencies between generations suggested that effective densities in these populations are 4-21 adults/km. A separate estimate from census densities suggested that effective densities may be as high as 82-178 adults/km. Applying these effective densities with isolation by distance theory suggested that larval dispersal kernels in A. clarkii had a spread near 11 km (4-27 km). These kernels predicted low fractions of self-recruitment in continuous habitats, but the same kernels were consistent with previously reported, high self-recruitment fractions (40-60%) when realistic levels of habitat patchiness were considered. Our results suggested that ecologically relevant larval dispersal can be estimated with widely available genetic methods when effective density is measured carefully through cohort sampling and ecological censuses, and that self-recruitment studies should be interpreted in light of habitat patchiness. © 2010 The Author(s). Journal compilation © 2010 The Society for the Study of Evolution. Source

Navarrete I.A.,University of Gottingen | Asio V.B.,Visayas State University

Understanding the direction and magnitude of soil science publication in the Philippines is crucial in formulating research priorities and funding allocation. There is no consensus on the current state of soil science publication in the Philippines, thus this study was conducted to elucidate the trend in the soil science publication. We conducted an in-depth analysis on the total number of publications and the total number of citations of soil science publications collected from Thomson ISI database. Results revealed an upsurge in soil science publication from 1970 to 2000 with no indication that this trend is slowing down. Increases in the number of citations with time are consistent with increases in the total number of publications (r = 0.93; p < 0.05). Results further revealed that the soil science publication in the Philippines is biased towards rice research particularly soil water with very few studies were published for plant nutrition and soil chemistry. The present study highlights the need for a paradigm shift in soil science research from mostly rice related research to environmental research. Ways to increase soil science publication among Filipino soil scientist's particularly in academic institutions is proposed. Finally, since only a few government-funded research have been published, future studies should stress on identifying factors that influence scientific productivity of most soil scientists in the Philippines. © 2013 Akadémiai Kiadó, Budapest, Hungary. Source

Hoffmann W.A.,North Carolina State University | Marchin R.M.,North Carolina State University | Abit P.,North Carolina State University | Abit P.,Visayas State University | Lau O.L.,North Carolina State University
Global Change Biology

Catastrophic hydraulic failure will likely be an important mechanism contributing to large-scale tree dieback caused by increased frequency and intensity of droughts under global climate change. To compare the susceptibility of 22 temperate deciduous tree and shrub species to hydraulic failure during a record drought in the southeastern USA, we quantified leaf desiccation, native embolism, wood density, stomatal conductance and predawn and midday leaf water potential at four sites with varying drought intensities. At the two driest sites, there was widespread leaf wilting and desiccation, and most species exhibited predawn leaf water potentials of ≤3MPa and >60% loss of xylem conductivity in branches. Although species with high wood density were more resistant to cavitation, they had higher levels of native embolism and greater canopy dieback than species with low wood density. This unexpected result can be explained by the failure of species with dense wood to avert a decline in water potential to dangerous levels during the drought. Leaf water potential was negatively correlated with wood density, and the relationship was strongest under conditions of severe water deficit. Species with low wood density avoided catastrophic embolism by relying on an avoidance strategy that involves partial drought deciduousness, higher sensitivity of stomata to leaf water potential and perhaps greater rooting depth. These species therefore maintained water potential at levels that ensured a greater margin of safety against embolism. These differences among species may mediate rapid shifts in species composition of temperate forests if droughts intensify due to climate change. © 2011 Blackwell Publishing Ltd. Source

Schneider T.,The New School | Ashton M.S.,The New School | Montagnini F.,The New School | Milan P.P.,Visayas State University
New Forests

Although many reforestation projects have attempted to mitigate deforestation in the Philippines, most have focused on planting introduced trees, often with low success rates. A smallholder-based project in the Visayas region planted native species instead. This study assessed the growth performance of forty-four native and sixteen introduced species in 25 sites established by this project between 1995 and 2000. Diameter at breast height and total height were measured for 2,789 trees. Mean annual increments for diameter (MAID) at breast height and height (MAIH) were significantly higher for trees planted on limestone-influenced soils (MAID = 1.19 cm/year; MAIH = 1.05 m/year) than on purely volcanic soils (MAID = 0.81 cm/year; MAIH = 0.78 m/year). Growth of two native species, Melia dubia and Terminalia microcarpa, was higher than that of the widely planted exotic Swietenia macrophylla. The height increment for the highest-performing dipterocarp species, Shorea guiso, Shorea contorta, and Parashorea malaanonan, was not statistically different from the MAIH of S. macrophylla. A range of soil characteristics predicted performance, with organic matter predicting growth for six species, and percent nitrogen and percent clay predicting performance of five species. These findings show that certain native species can perform better than some exotic species when planted in open areas. They also disprove the widely held belief in the Philippines that Dipterocarpaceae cannot be planted in grasslands, and suggest that dipterocarps can be used successfully in reforestation. Finally, the findings show that more research is needed on species-site matching and on silvicultural management of native species plantations. © 2013 Springer Science+Business Media Dordrecht. Source

Peque D.,Visayas State University | Peque D.,University of Gottingen | Holscher D.,University of Gottingen
Biodiversity and Conservation

In several tropical regions of the world, formerly widespread forests have been reduced to scattered remnants, and many tree species are becoming increasingly endangered. Knowledge on the population status of rare species is essential to inform conservation efforts and, in particular, the use of native species for reforestation projects stemming from emerging land-use strategies. We studied 20 mostly red-listed native species in remnant forests on five limestone-, four volcanic- and one ultramafic site(s) across the Visayas in the Philippines, with 40 plots being assessed at each site. Seventeen of the species showed a median density of less than two trees per hectare, with ten species showing median densities of zero due to low species frequency, although some had higher local densities. One species (Dracontomelon edule) was not encountered at all, while two other species (Dipterocarpus validus and Dracontomelon dao) were only encountered as singletons. Six species were confined to limestone sites and showed associations with other better-known limestone specialists. The other study species occurred at both site types. Four of the species showed significant relationships between stem density, soil pH and stand basal area. The particular rarity of the majority of the species calls for immediate conservation measures to be adopted to protect species and associated remnant forests. In addition to legal measures such as the designation of remnant forests as protected areas, we recommend the establishment of mixed native forest stands giving due regard to the species associations and site characteristics identified in this study. © 2014 Springer Science+Business Media Dordrecht. Source

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