scholarly journals Seasonal Water Relations and Leaf Temperature in a Deciduous Dipterocarp Forest in Northeastern Thailand

Forests ◽  
2017 ◽  
Vol 8 (10) ◽  
pp. 368 ◽  
Author(s):  
Philip Rundel ◽  
Kansri Boonpragob ◽  
Mark Patterson
Keyword(s):  
Water Relations ◽  
Leaf Temperature ◽  
Dipterocarp Forest ◽  
Deciduous Dipterocarp Forest ◽  
Northeastern Thailand

Diversity and community composition of ectomycorrhizal fungi in a dry deciduous dipterocarp forest in Thailand

2012 ◽  
Vol 21 (9) ◽  
pp. 2287-2298 ◽  
Author(s):  
Cherdchai Phosri ◽  
Sergei Põlme ◽  
Andy F. S. Taylor ◽  
Urmas Kõljalg ◽  
Nuttika Suwannasai ◽  
...  
Keyword(s):  
Community Composition ◽  
Ectomycorrhizal Fungi ◽  
Dipterocarp Forest ◽  
Deciduous Dipterocarp Forest

Effect of Wildfire on the Occurrence of Three Squirrel Species in a Dry Dipterocarp Forest in Northeastern Thailand

Mammal Study ◽  
2017 ◽  
Vol 42 (4) ◽  
pp. 1-5 ◽  
Author(s):  
Shun Kobayashi ◽  
Jumlong Placksanoi ◽  
Artchawakom Taksin ◽  
Chittima Aryuthaka ◽  
Masako Izawa
Keyword(s):  
Dipterocarp Forest ◽  
Dry Dipterocarp Forest ◽  
Northeastern Thailand

Heimioporus subcostatus, a new Boletaceae species from northern and northeastern Thailand

Phytotaxa ◽  
2020 ◽  
Vol 475 (1) ◽  
pp. 18-28
Author(s):  
SANTHITI VADTHANARAT ◽  
OLIVIER RASPÉ ◽  
SAISAMORN LUMYONG
Keyword(s):  
New Species ◽  
Phylogenetic Tree ◽  
The Other ◽  
Data Set ◽  
Dipterocarp Forest ◽  
Northeastern Thailand

A novel bolete species, Heimioporus subcostatus, is described from northern and northeastern Thailand. It can be distinguished from the other Heimioporus species by its reddish brown to brownish red basidiomata when young becoming dull red to pale red at maturity, with raised and prominent reticulation on stipe, yellow pores, basidiospores with incomplete reticulation, and occurrence in dipterocarp forest dominated by Dipterocarpus spp. and Shorea spp. In a phylogenetic tree based on a three-gene (atp6, tef1, rpb2) data set, the new species formed a clade sister to H. sinensis within the supported Heimioporus clade in the Xerocomoideae (Boletaceae). Macroscopic and microscopic descriptions, as well as illustrations of the new species are presented.

scholarly journals Leaf heliotropism in Styrax camporum Pohl from the Brazilian cerrado: distinct gas exchange and leaf structure, but similar leaf temperature and water relations

2008 ◽  
Vol 20 (1) ◽  
pp. 71-83 ◽  
Author(s):  
Gustavo Habermann ◽  
Silvia R. Machado ◽  
Vandeir F. Guimarães ◽  
João D. Rodrigues
Keyword(s):  
Gas Exchange ◽  
Water Relations ◽  
Categorical Data ◽  
Co2 Assimilation ◽  
Leaf Temperature ◽  
Leaf Structure ◽  
Brazilian Cerrado ◽  
Unit Leaf ◽  
Oriented Parallel ◽  
Intercellular Co2

Styrax camporum is a common shrub species from the cerrado regions of São Paulo State, Brazil. Although its leaves do not have a morphologically delimited pulvinus, the apical leaves are oriented parallel to the sun (paraheliotropic leaves), most notably around noon. Horizontal leaves at the base of shoots are oriented perpendicular to the sun's rays (diaheliotropic leaves). The ecophysiological significance of this is not fully understood. We investigated how paraheliotropism influences daily CO2 assimilation (A) and other gas exchange rates, water relations, leaf temperature (Tl), and how these relate to leaf structure as assessed by anatomical leaf descriptions. Paraheliotropic leaves had greater A and stomatal conductance (g s), which led to greater transpiration rates (E) during most of the day. However, no categorical data proved that these responses were responsible for the lower Tl for vertical leaves, which only occurred at 1100 h and 1600 h. There was no indication that Tl influenced A, E, or g s. However, diaheliotropic leaves did not assimilate less carbon because of a smaller stomatal aperture. Both leaf types had satisfactory stomatal apertures and the same g s range, resulting in similar intercellular CO2 levels. Paraheliotropic leaves had higher A rates under increased irradiance, suggesting an avoidance of excessive irradiance. Both leaf types had compact spongy parenchyma, representing an increased photosynthetic capacity per unit leaf area. Paraheliotropism in S. camporum does not seem to be related to leaf temperature control, even in the stressful Brazilian cerrado habitat.

scholarly journals Estimating Leopard Cat Prionailurus bengalensis Kerr, 1792 (Carnivora: Felidae) density in a degraded tropical forest fragment in northeastern Thailand

2019 ◽  
Vol 11 (4) ◽  
pp. 13448-13458 ◽  
Author(s):  
Wyatt Joseph Petersen ◽  
Tommaso Savini ◽  
Robert Steinmetz ◽  
Dusit Ngoprasert
Keyword(s):  
Tropical Forest ◽  
Camera Trap ◽  
Evergreen Forest ◽  
Forest Fragment ◽  
Dipterocarp Forest ◽  
Dry Evergreen Forest ◽  
Leopard Cat ◽  
Prionailurus Bengalensis ◽  
Dry Dipterocarp Forest ◽  
Northeastern Thailand

The Leopard Cat Prionailurus bengalensis is thought to be Asia’s most abundant wild cat.  Yet, the species’ status is poorly known due to a lack of rigorous population estimates.  Based on the few studies available, Leopard Cats appear to be more abundant in degraded forests, potentially due to increased prey availability.  We conducted camera trap surveys, rodent live-trapping, and spatially-explicit capture-recapture analyses to estimate the density of Leopard Cats within a degraded tropical forest fragment (148km2) in northeastern Thailand.  A total effort of 12,615 camera trap nights across 65km2 of trapping area resulted in at least 25 uniquely identified individuals.  Average rodent biomass (the main prey of Leopard Cats) was highest in the dry evergreen forest (469.0g/ha), followed by dry dipterocarp forest (287.5g/ha) and reforested areas (174.2g/ha).  Accordingly, Leopard Cat densities were highest in the dry evergreen forest with 21.42 individuals/100km2, followed by the reforested areas with 7.9 individuals/100km2.  Only two detections came from the dry dipterocarp forest despite both an extensive survey effort (4,069 trap nights) and available prey.  Although the dipterocarp supported the second highest average rodent biomass, it lacked a key prey species, Maxomys surifer, possibly explaining low encounter rates in that habitat.  Our results provide important baseline information concerning the population status of Leopard Cat in southeastern Asia.  Further, our findings corroborate with other studies that found a tolerance among Leopard Cats for degraded forests, highlighting the potential for forest fragments to serve as long-term conservation areas for the species.

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