BACKGROUND The Cocoseae is one of 13 tribes of Arecaceae subfam. Arecoideae, and contains a number of palms with significant economic importance, including the monotypic and pantropical Cocos nucifera L., the coconut, the origins of which have been one of the "abominable mysteries" of palm systematics for decades. Previous studies with predominantly plastid genes weakly supported American ances...

The existence of Rhodnius robustus as a species distinct from Rhodnius prolixus has long been the main epidemiological question about Chagas disease transmission in Venezuela and surrounding countries. These two taxa are morphologically and genetically very similar, but only R. prolixus is assumed to colonize houses and transmit Chagas disease to humans. R. robustus is assumed to be an exclusiv...

Palms are an important component of tropical ecosystems, living alongside dicotyledonous trees, even though they have a very different growth pattern and vascular system. As monocots, vessels in palms are located within vascular bundles and, without a vascular cambium that many dicotyledonous trees possess, palms cannot add additional vessels to their vascular system as they get older and talle...

Despite the crucial role of fine roots for water and nutrient uptake, soil biological activity ecosystem carbon cycling, response root dynamics to rapidly advancing land-use change in tropics is still poorly understood. To address this uncertainty, we investigated consequences tropical forest conversion intensively managed tree plantations a suite functional traits. We analysed morphology (diam...

Fishtail palm (Caryota urens) are well known landscaping plants today and is widespread in peninsular India Sri Lanka. They multipurpose species with a variety of applications thus very heavily utilized. Caryota urens, as Jirika Andhra Pradesh Giraka Telangana states, native rainforest tropical Asia. It also one the most common trees perennial forest gardens high altitude areas southern India. ...

In Southeast Asia, expansion of oil-palm agriculture, in combination with other industries (logging, fiber, and mega-dams), is transforming significant portions of the landscape threatening biodiversity, key ecosystem services, and human cultural diversity. While transformative answers to these multifaceted environmental issues seem daunting, the conservation biology literature provides a road ...

Oil palm (Elaeis guineensis) trees are an important contributor of recent economic development in Southeast Asia. The high product yield, and the consequent profitability, has led to a widespread expansion plantations greater region. However, oil palms susceptible diseases that can have detrimental effect. In this study we use hyper- multi-spectral remote sensing detect diseased Krabi province,...

To determine the optimum feeding level of fatty acids of palm oil (PALM; Energizer RP10; 86.6% palmitic acid) on milk production, lactating cows (n = 18) were randomly assigned to a treatment sequence in replicated 4 x 4 Latin squares. Animals were assigned to squares by parity (3 multiparous and 1 primiparous squares with primiparous in the incomplete square). The 4 diets were designed to prov...

In a multi-strata agroforestry system in the central Amazon near Manaus, we studied the root activity distribution of different fruit trees and a legume cover crop in comparison to monocultures and a secondary forest site. Uptake of applied P, P and N from 0.1, 0.6 and 1.5 m depth was compared in both the dry and wet season. The results obtained with P were similar to those with N but showed a ...

This study presented the first recorded of banded garden spider Argiope trifasciata and described for time in Baghdad city, Iraq. The specimens were collected from Al-Rashidiya sub-district north city on 26/ November/ 2021 (7:00 am- 6:00 pm) fruit gardens (orange apricot trees) agriculture lands (palm trees, crops wheat vegetables). "Argiope trifasciata" species is a member orb-weaving genus. I...