7 Works

THE INFLUENCE OF TURMERIC MICROPARTICLES AMOUNT ON THE MECHANICAL AND BIODEGRADATION PROPERTIES OF CORNSTARCH-BASED BIOPLASTIC MATERIAL: FROM BIOPLASTIC LITERATURE REVIEW TO EXPERIMENTS

F. Triawan, A.B.D. Nandiyanto, I.O. Suryani, M. Fiandini & B.A. Budiman
The purpose of this study was to investigate the effects of turmeric microparticles amount on the mechanical and biodegradation properties of cornstarch-based bioplastic material. To produce the bioplastics, several steps were done sequentially: (1) dissolving a mixture of cornstarch, glycerol, and acetic acid in aqueous solution; (2) adding turmeric microparticles with a specific amount (i.e., 0.50; 0.75; 1.00; 1.50% (w/w)); (3) homogenizing the mixture at temperature of 60ºC; (4) molding process; and (5) drying process...

Data from: An ancient origin for the enigmatic Flat-Headed Frogs (Bombinatoridae: Barbourula) from the islands of Southeast Asia

David C. Blackburn, David P. Bickford, Arvin C. Diesmos, Djoko T. Iskandar & Rafe M. Brown
Background: The complex history of Southeast Asian islands has long been of interest to biogeographers. Dispersal and vicariance events in the Pleistocene have received the most attention, though recent studies suggest a potentially more ancient history to components of the terrestrial fauna. Among this fauna is the enigmatic archaeobatrachian frog genus Barbourula, which only occurs on the islands of Borneo and Palawan. We utilize this lineage to gain unique insight into the temporal history of...

Data from: Deep genetic structure and ecological divergence in a widespread human commensal toad

Guinevere O. U. Wogan, Bryan L. Stuart, Djoko T. Iskandar & Jimmy A. McGuire
The Asian common toad (Duttaphrynus melanostictus) is a human commensal species that occupies a wide variety of habitats across tropical Southeast Asia. We test the hypothesis that genetic variation in D. melanostictus is weakly associated with geography owing to natural and human-mediated dispersal facilitated by its commensal nature. Phylogenetic and population genetic analyses of mitochondrial and nuclear DNA sequence variation, and predictive species distribution modelling, unexpectedly recovered three distinct evolutionary lineages that differ genetically and...

Impact of Pleistocene eustatic fluctuations on evolutionary dynamics in Southeast Asian biodiversity hotspots

Arni Sholihah, Erwan Delrieu-Trottin, Fabien Condamine, Daisy Wowor, Lukas Rüber, Laurent Pouyaud, Jean-François Agnèse & Nicolas Hubert
Pleistocene Climatic Fluctuations (PCF) are frequently highlighted as important evolutionary engines that triggered cycles of biome expansion and contraction. While there is ample evidence of the impact of PCF on biodiversity for continental biomes, the consequences in insular systems depend on the geology of the islands and the ecology of the taxa inhabiting them. The idiosyncratic aspects of insular systems are exemplified by the islands of the Sunda Shelf in Southeast Asia (Sundaland), where PCF-induced...

Data from: Stochastic faunal exchanges drive diversification in widespread Wallacean and Pacific island lizards (Squamata: Scincidae: Lamprolepis smaragdina)

Charles W. Linkem, Rafe M. Brown, Cameron D. Siler, Ben J. Evans, Christopher C. Austin, Djoko T. Iskandar, Arvin C. Diesmos, Jatna Supriatna, Noviar Andayani, Jimmy A. McGuire & Malte Ebach
Aim: Widespread species found in disturbed habitats are often expected to be human commensals. In island systems, this association predicts that dispersal will be mediated by humans. We investigated the biogeographical relationships among populations of a widespread tree skink that inhabits coastal forest and human-cultivated plantations in Southeast Asia. We sought to determine whether populations of the emerald tree skink, Lamprolepis smaragdina, dis- persed via mechanisms that were not human-mediated (‘natural’ dispersal) or whether dispersal...

Data from: Leap-frog dispersal and mitochondrial introgression: phylogenomics and biogeography of Limnonectes fanged frogs in the Lesser Sundas Archipelago of Wallacea

Sean B. Reilly, Alexander L. Stubbs, Benjamin R. Karin, Ke Bi, Evy Arida, Djoko T. Iskandar & Jimmy A. McGuire
Aim: The Lesser Sunda Islands are situated between the Sunda and Sahul Shelves, with a linear arrangement that has functioned as a two-way filter for taxa dispersing between the Asian and Australo-Papuan biogeographic realms. Distributional patterns of many terrestrial vertebrates suggest a stepping-stone model of island colonization. Here we investigate the timing and sequence of island colonization in Asian-origin fanged frogs from the volcanic Sunda Arc islands with the goal of testing the stepping-stone model...

Data from: An ancient origin for the enigmatic Flat-Headed Frogs (Bombinatoridae: Barbourula) from the islands of Southeast Asia

David C Blackburn, David P Bickford, Arvin C Diesmos, Djoko T Iskandar, Rafe M Brown, David C. Blackburn, Rafe M. Brown, David P. Bickford, Arvin C. Diesmos & Djoko T. Iskandar
Background: The complex history of Southeast Asian islands has long been of interest to biogeographers. Dispersal and vicariance events in the Pleistocene have received the most attention, though recent studies suggest a potentially more ancient history to components of the terrestrial fauna. Among this fauna is the enigmatic archaeobatrachian frog genus Barbourula, which only occurs on the islands of Borneo and Palawan. We utilize this lineage to gain unique insight into the temporal history of...

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