Myxobiota of the Brazilian Atlantic Forest: species on oil palm tree (Elaeis guineensis, Arecaceae)

Abstract Elaeis guineensis Jacq. (Arecaceae), the oil palm tree, serves as a phorophyte for many different groups of organisms, someof whichhelp decompose organic matter comingfromthe organs of the tree itself or fromremainsof other plants retained in leaf sheaths. To study the myxobiota of E. guineensis, we examined living and dead trunks, leaves, bracts and inflorescences in the Gurjaú Ecological Reserve, in the township of Cabo de Santo Agostinho, Pernambuco, Brazil. Incidence and species abundance were determined in three Atlantic forest fragments. The reported species are listed herein, followed the known distribution of each species in Brazil, and which of them occur on palm trees. All of the subclasses and five orders were recorded and 22 species were added to the list of myxomycetes associated with oil palm trees in Brazil. The highest incidence value was recorded on dead leaves. Ceratiomyxa fruticulosa (O. F. Müll.) T. Macbr., Arcyria cinerea (Bull.)Pers. and Physarum compressum Alb.& Schwein. werethe most commonspecies, while Hemitrichia serpula (Scop.) Rostaf. ex Lister showed the highest levels of abundance and incidence, thus confirming its preference for the substrates provided by palm trees.

Download Full-text

Enumeration of Plant Species Inhabiting Oil Palm Trees (Elaeis-guineensis) at Zawlpui Plantation Site, Serchhip District, Mizoram

Science & Technology Journal ◽

10.22232/stj.2021.09.01.06 ◽

2021 ◽

Vol 9 (1) ◽

pp. 32-35

Author(s):

Lal awmpuia ◽

◽

H. Lalruatsanga ◽

Keyword(s):

Species Diversity ◽

Plant Species ◽

Oil Palm ◽

Elaeis Guineensis ◽

Vascular Plant ◽

Fungal Species ◽

Small Scale ◽

Palm Tree ◽

Palm Trees ◽

Plant Stem

A survey of plant species inhabiting oil palm trees was conducted in Zawlpui area of Serchhip district, Mizoram. The study area is a tropical potent agriculture zone, wherein small-scale business of Elaeis guineensis plantation is carried out by several farmers mainly within the gentle sloppy terrain. Oil palm with a rough bark harbors immense inhabitation by a variety plants, that rooted mostly on the debris at leaf base. Species diversity on the plant stem supposedly encourage insects and termites to establish herewith, thus causing harming to the tree. The sample stands within 400 m–800 m altitude were picked randomly. A total of 50 palm tree were accounted and all associated plants on the stem above 30 cm from the ground are all recorded. Species that cannot be identified on the site were pressed and observed at Botany Research lab, Pachhunga University College. The survey documented 38 vascular plant species which include 4 epiphytes and 1 non-vascular species of lichen, 1 bryophyte and 4 fungal species at that time. Invasive Peperomia pellucida and epiphytic pteridophytes Nephrolepis biserrata was found in most of the stand sample; however, Peperomia population decreases with the increasing elevation. Dynamics of inhabitant species diversity also correlate to location of tree. The study also established that diversity of inhabiting species was comparatively high on parts of the stem facing sunlight.

Download Full-text

Importance socioéconomique de Elaeis guineensis Jacq. (Palmier à huile) en Basse-Casamance (SENEGAL)

European Scientific Journal ESJ ◽

10.19044/esj.2017.v13n12p214 ◽

2017 ◽

Vol 13 (12) ◽

pp. 214

Author(s):

Boubacar Camara ◽

Boubacar Sagna ◽

Daouda Ngom ◽

Mamadou Niokane ◽

Zoe Daba Gomis

Keyword(s):

Palm Oil ◽

Oil Palm ◽

Elaeis Guineensis ◽

Local Population ◽

Anthropogenic Factors ◽

Palm Tree ◽

Forest Species ◽

Goods And Services ◽

Palmier À Huile ◽

Natural And Anthropogenic Factors

Lower Casamance harbors enormous economic potentialities due to the importance of its forest resources. Among the forest species of the area, Elaeis guineensis is one of the most exploited for its many services and products. Despite its importance, the oil palm tree is experiencing real threats linked to a combination of natural and anthropogenic factors. The overall objective of this study is to contribute and evaluate the goods and services provided by the agroforestry parks in Lower Casamance which will lead to an alert to the whole community about the threats to these secular systems. For that purpose, an individual questionnaire was administered to a sample of 146 invidious (33 in Carounate, 57 in Kabiline and 56 in Kaguite) according to their business sector in the palm plantation in each of the sites. Corresponding to 5% poll rate. It should be noted that most of the surveyed population acquires their product through harvesting (72% in Carounate, 70.97% in Kabiline and 70.21 in Kaguite). All parts of the oil palm are exploited by the local population for various purposes. Thus the most important frequencies are the use in construction (100%), the production of palm oil on average (94.87% and the making of brooms on average (92.97%). The sale of the palm products is a source of unshakeable revenue that can provide up to 865000F cfa for palm oil, 675000Fcfa for palm wine and 280000F cfa for brooms. This is why, according to 90.91% of the respondents in Carounate, 37.41% in Kabiline and 45.71%, the exploitation of the oil palm occupies the second place, after agriculture, in their activities. It is therefore all the interest to permanently preserve these secular systems.

Download Full-text

Weed Species Distribution of Juvenile Oil Palm Tree (Elaeis guineensis) Intercropped with Maize (Zea mays), Okra (Abelmoshus esculentus) and Pepper (Capsicum anuum var. abbreviatum)

Notulae Scientia Biologicae ◽

10.15835/nsb649358 ◽

2014 ◽

Vol 6 (4) ◽

pp. 483-490

Author(s):

Ayodele Samuel OLUWATOBI ◽

Kehinde Stephen OLORUNMAIYE

Keyword(s):

Zea Mays ◽

Species Distribution ◽

Oil Palm ◽

Elaeis Guineensis ◽

Diversity Index ◽

Block Design ◽

Control Plot ◽

Palm Tree ◽

Weed Species ◽

Palm Trees

This field experiment was carried out to evaluate the weed species distribution in the experimental plots of an intercrop of juvenile oil palm trees (Elaeis guineensis Jacq.) with maize (Zea mays Linn.), okra (Abelmoschus esculentus Moench) and pepper (Capsicum annuum var. abbreviatum). This was carried out during the cropping season between July and October 2012. The crops were intercropped with the juvenile oil palm trees of about 3-years-old. The experiment was laid out in a completely randomized block design with five (5) replicates. The treatments comprised of intercropping distances of 1 m, 2 m and 3 m each for the three (3) crops (maize, okra and pepper) and a plot for each of the three (3) arable crops without oil palm trees as control. Weed species distribution was carried out in each of the plots to determine the Simpson’s Diversity Index (D), Simpson’s Index of Diversity (1-D) and Simpson’s Reciprocal Index (1/D). Weed species’ frequency, density, relative density, relative frequency, importance value, abundance, dominance and relative dominance were also computed from data collected at 3WAP and 6WAP. The results showed that the control plot has the highest weed species distribution at 3WAP having the lowest Simpson’s Diversity Index (D) of 0.0930. Okra plot has the least weed species distribution with the highest Simpson’s Diversity Index (D) of 0.2726. At 6WAP, the pepper plot has the highest weed species distribution having the lowest Simpson’s Diversity Index (D) of 0.1741. Control plot has the least weed species distribution with highest Simpson’s Diversity Index (D) of 0.2831.

Download Full-text

The magnitude and extent of edge effects on vascular epiphytes across the Brazilian Atlantic Forest

Scientific Reports ◽

10.1038/s41598-020-75970-1 ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Edicson Parra-Sanchez ◽

Cristina Banks-Leite

Keyword(s):

Atlantic Forest ◽

Edge Effects ◽

Forest Cover ◽

Species Abundance ◽

Conservation Strategy ◽

Suitable Habitat ◽

Forest Fragments ◽

Brazilian Atlantic Forest ◽

Vascular Epiphytes ◽

Epiphyte Communities

Abstract Edge effects are ubiquitous landscape processes influencing over 70% of forest cover worldwide. However, little is known about how edge effects influence the vertical stratification of communities in forest fragments. We combined a spatially implicit and a spatially explicit approach to quantify the magnitude and extent of edge effects on canopy and understorey epiphytic plants in the Brazilian Atlantic Forest. Within the human-modified landscape, species richness, species abundance and community composition remained practically unchanged along the interior-edge gradient, pointing to severe biotic homogenisation at all strata. This is because the extent of edge effects reached at least 500 m, potentially leaving just 0.24% of the studied landscape unaffected by edges. We extrapolated our findings to the entire Atlantic Forest and found that just 19.4% of the total existing area is likely unaffected by edge effects and provide suitable habitat conditions for forest-dependent epiphytes. Our results suggest that the resources provided by the current forest cover might be insufficient to support the future of epiphyte communities. Preserving large continuous ‘intact’ forests is probably the only effective conservation strategy for vascular epiphytes.

Download Full-text

Patch Structure within Brazilian Atlantic Forest Fragments and Implications for Conservation1

Biotropica ◽

10.1646/0006-3606(2000)032[0925:pswbaf]2.0.co;2 ◽

2000 ◽

Vol 32 (4) ◽

pp. 925 ◽

Cited By ~ 48

Author(s):

André Augusto Jacinto Tabanez ◽

Virgilio Maurício Viana

Keyword(s):

Atlantic Forest ◽

Forest Fragments ◽

Brazilian Atlantic Forest ◽

Patch Structure

Download Full-text

Effect of oil palm (Elaeis guineensis Jacq.) plantations on individual-level diet variation of Hylaeamys megacephalus (G. Fisher 1814) (Rodentia, Cricetidae) in eastern Amazon Forest

Biota Neotropica ◽

10.1590/1676-0611-bn-2018-0597 ◽

2019 ◽

Vol 19 (2) ◽

Author(s):

Simone Almeida Pena ◽

Ana Cristina Mendes-Oliveira

Keyword(s):

Palm Oil ◽

Oil Palm ◽

Elaeis Guineensis ◽

Stomach Contents ◽

Niche Overlap ◽

Palm Tree ◽

Amazon Forest ◽

Tree Plantation ◽

Forest Environment ◽

Oil Palm Plantation

Abstract: In this study we described the diet of Hylaeamys megacephalus (G. Fisher, 1814) and investigated the degree of individual variation in the diet of this species among the Amazon Forest and the oil palm plantation. We analyzed the stomach contents of 36 individuals, of whom 11 were collected in the forest and 25 captured in the palm oil palm plantation. The H. megacephalus diet consisted of 18 food items, of which 12 were animal composition and eight were vegetable composition. The niche amplitude of the species was narrower in the forest area (Baforest = 0.013) compared to the palm tree plantation area (Bapalm = 0.478). This shows that individuals have greater niche overlap in forest areas, while in the plantation areas the animals expand their food niche. In addition, the values of the mean of the individual diet in relation to the diet of the entire population were lower in the palm oil palm plantation environment (ISpalm = 0.164) than in the Forest environment (ISforest = 0.357), indicating a high specialization in the palm oil plantation. These results indicate a population mechanism to reduce intraspecific competition in response to scarce resources.

Download Full-text

Fuzzy concept applied in determining potential forest fragments for deployment of a network of ecological corridors in the Brazilian Atlantic Forest

Ecological Indicators ◽

10.1016/j.ecolind.2020.106423 ◽

2020 ◽

Vol 115 ◽

pp. 106423 ◽

Cited By ~ 4

Author(s):

Alexandre Rosa dos Santos ◽

Emanuel França Araújo ◽

Quétila Souza Barros ◽

Milton Marques Fernandes ◽

Márcia Rodrigues de Moura Fernandes ◽

...

Keyword(s):

Atlantic Forest ◽

Forest Fragments ◽

Brazilian Atlantic Forest ◽

Ecological Corridors ◽

Fuzzy Concept

Download Full-text

Recent developments in the application of oil palm fibers in cement composites

Frontiers of Structural and Civil Engineering ◽

10.1007/s11709-019-0576-9 ◽

2020 ◽

Vol 14 (1) ◽

pp. 94-108 ◽

Cited By ~ 4

Author(s):

Emmanuel Owoichoechi Momoh ◽

Adelaja Israel Osofero

Keyword(s):

Oil Palm ◽

Potential Application ◽

Elaeis Guineensis ◽

Experimental Methods ◽

Engineering Properties ◽

Palm Tree ◽

Cement Composites ◽

Mechanical And Physical Properties ◽

Recent Developments ◽

Different Parts

AbstractFibers obtained from different parts of the oil palm tree (Elaeis guineensis) have been under investigation for possible use in construction. Studies have been carried out investigating the engineering properties and possible applications of these fibers. However, the experimental methods employed and the values of mechanical and physical properties recorded by various authors are inconsistent. It has therefore become necessary to organize information which would be useful in the design of oil palm fiber cement composites and help researchers and engineers make informed decisions in further research and application. This review provides information about fibers from different parts of the oil palm, their properties, enhancement techniques, current and potential application in cement composites.

Download Full-text

Ecologic salience and agreement on the identification of tree species from Brazilian Atlantic Forest

Biota Neotropica ◽

10.1590/s1676-06032010000100007 ◽

2010 ◽

Vol 10 (1) ◽

pp. 77-84 ◽

Cited By ~ 7

Author(s):

Natalia Hanazaki ◽

Rogério Mazzeo ◽

Alexandre Romariz Duarte ◽

Vinícius Castro Souza ◽

Ricardo Ribeiro Rodrigues

Keyword(s):

Atlantic Forest ◽

Local Knowledge ◽

Tree Species ◽

Species Abundance ◽

Average Height ◽

Brazilian Atlantic Forest ◽

Community Based ◽

Botanical Species ◽

Community Based Conservation ◽

High Diversity

This study aims to investigate the consensus among informants in the naming of tree species from a high diversity environment, the Brazilian Atlantic Forest (Sete Barras, SP), through a methodological procedure based on standardized stimuli. Seven selected local experts on tree species used for timber and handicrafts were asked to walk individually across the same area of 1.72 ha and identify and name all the known trees of more than 4 cm DBH (diameter at breast height) using common names. All trees were botanically identified, and their DBH and height were measured. The ecologic salience of tree species, expressed in terms of abundance, average height and DBH, was tested in relation to the informants' knowledge and species naming. The guided walks resulted on 708 identification events, with common names corresponding to 122 botanical species, or 68% of all tree species present. Both the reduced abundance and ecological salience of rare species can explain their recognition. The highest concordances in naming a tree were related only to the species abundance and not to their size (given by diameter and height). In some cases, there is no single common name for a botanical species, reflecting the intrinsic variation in local knowledge, which must be considered in ethnobotanical studies, in ecological assessments based on local knowledge, as well as in community-based conservation and management programs.

Download Full-text