Ecological and Ethnobotanical Characterisation of Gujarat Forests

2020 ◽  
Vol 6 (01) ◽  
pp. 09-27
Author(s):  
S. P.S. Kushwaha ◽  
G. D. Bhatt ◽  
D. M. Tadvi ◽  
S. Nandy
Keyword(s):  
Deciduous Forest ◽  
Forest Plantations ◽  
Degraded Forest ◽  
Species Trees ◽  
Natural Forests ◽  
Gujarat State ◽  
Eucalyptus Plantation ◽  
Extensive Field ◽  
Dry Deciduous Forest ◽  
Anogeissus Pendula

This study focused on the ecological and ethnobotanical characteristics of the natural forests, forest plantations, and forest orchards in the Gujarat state of India through an extensive field survey of trees, shrubs, and herbs over a span of four years. We inventoried 345 tree, 345 shrub, and 1,380 herb plots using a stratified random sampling design. In all, 706 species [trees (224), shrubs (68), and herbs (414)] were recorded. The highest number of species were noted in teak mixed dry deciduous forest (207), followed by scrub (132), thorn forest (91), grassland (78), teak mixed moist deciduous forest (51), forest plantations (34), degraded forest (30), Prosopis juliflora scrub (24), forest orchard (19), ravine thorn forest (16), Anogeissus pendula forest (8), riverain forest (8), Eucalyptus plantation (6), mangrove forest (1), and mangrove scrub (1). Fabaceae was observed to be the dominant family. Out of total species, twenty-nine (29) species were found to be rare (25), endangered (2), and threatened (2). Fabaceae was also the dominant family for rare, endangered, and threatened (RET) species. Six endemic species were recorded. The highest value of Shannon’s Index of plant diversity was noticed in teak mixed dry deciduous forest (3.14), followed by teak mixed moist deciduous forest (2.96), ravine thorn forest (2.08), forest plantations (1.97), thorn forest (1.64), riverine forest (1.41), and degraded forest (1.49). Two hundred fifty-two species, including trees (24), shrubs (101), herbs (123), climbers (3), and bamboo (1) found to be ethnobotanically important. Fabaceae happened to be the dominant family in terms of ethnobotanically important plants too.

scholarly journals Allelopathic effect of Anogeissus pendula Edgew. and Grewia flavescens A.Juss on Desmodium species in Alwar district of Rajasthan

2019 ◽  
Author(s):  
Rajendra Prasad ◽  
A S Yadav
Keyword(s):  
Adverse Effect ◽  
Seed Germination ◽  
Deciduous Forest ◽  
The Other ◽  
Allelopathic Effect ◽  
Leaf Leachate ◽  
Dry Deciduous Forest ◽  
Anogeissus Pendula

AbstractThe effect of leaf leachates of Anogeissus pendula Edgew. and Grewia flavescens A.Juss was evaluated on growth of the three species of Desmodium in Alwar district of Rajasthan (27°4’ to 28°4’ N and 76°7’ to 77°13’ E). Anogeissus pendula reduced the seed germination of Desmodium repandum from 85% in control to 43% at 2% concentration, Desmodium gangeticum from 80% in control to 50% at 6% concentration and Desmodium triflorum from 78% in control to 28% at 0.1% concentration of leaf leachates. Similarly, the leaf leachates of Grewia flavescens reduced the seed germination of Desmodium repandum from 85% in control to 40% at 2% concentration, Desmodium gangeticum from 80% in control to 50% even at 0.1% concentration and Desmodium triflorum from 78% in control to 21% at 0.5% concentration. The leaf leachates of both the species also reduced the elongation of radicle and plumule of three Desmodium species; however, the adverse effect of leaf leachate of Grewia flavescens was more severe than that of the other species. Among the three Desmodium species, the allelopathic effect of Grewia flavescens and Anogeissus pendula was more severe on Desmodium triflorum as compared to the other two species. It may be suggested that the population of three species of Desmodium is partly regualated by the allelopathic effect of Anogeissus pendula and Grewia flavescens in this tropical dry deciduous forest.

Multi-year eddy covariance measurements of net ecosystem exchange in tropical dry deciduous forest of India

2021 ◽  
Vol 301-302 ◽  
pp. 108351
Author(s):  
Suraj Reddy Rodda ◽  
Kiran Chand Thumaty ◽  
MSS Praveen ◽  
Chandra Shekhar Jha ◽  
Vinay Kumar Dadhwal
Keyword(s):  
Eddy Covariance ◽  
Deciduous Forest ◽  
Net Ecosystem Exchange ◽  
Dry Deciduous Forest ◽  
Eddy Covariance Measurements

A new species of Lophopogon (Poaceae) from Ananthapuramu of Andhra Pradesh, India

Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 234-240
Author(s):  
KOTHAREDDY PRASAD ◽  
NAGARAJU SIDDABATHULA ◽  
ANGAJALA NARAYANA SWAMY ◽  
ARAVEETI MADHUSUDHANA REDDY ◽  
MUDADLA SANKARA RAO ◽  
...  
Keyword(s):  
New Species ◽  
Andhra Pradesh ◽  
Deciduous Forest ◽  
Taxonomic Key ◽  
Dry Deciduous Forest ◽  
A New Species

A new species of Lophopogon (Poaceae), L. prasannae is described from dry deciduous forest of Ananthapuramu district, Andhra Pradesh, India. This new species shows morphological similarities with L. tridentatus and L. kingii but differs in certain characters, which are discussed below. A detailed description, photographs and taxonomic key are provided for easy identification of the species.

Wood Specific Gravity in Species from Two Tropical Forests in Mexico

IAWA Journal ◽  
1987 ◽  
Vol 8 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Josefina Barajas-Morales
Keyword(s):  
Specific Gravity ◽  
Tropical Forests ◽  
Tropical Rainforest ◽  
Deciduous Forest ◽  
Woody Species ◽  
T Test ◽  
Tropical Deciduous Forest ◽  
Wood Specific Gravity ◽  
Dry Deciduous Forest

The specific gravity of 220 woody species, half of them from a tropical rainforest, half from a tropical deciduous forest was measured. The two groups were compared using a Student t-test. The results show highly significant differences in specific gravity between the species from the two areas: woods from the dry deciduous forest tend to be much heavier than those from the rainforest.

scholarly journals HEIGHT-DIAMETER MODELS FOR THREE SUBTROPICAL FOREST TYPES IN SOUTHERN BRAZIL

2015 ◽  
Vol 39 (3) ◽  
pp. 205-215 ◽  
Author(s):  
Alexander Christian Vibrans ◽  
Paolo Moser ◽  
Laio Zimermann Oliveira ◽  
João Paulo de Maçaneiro
Keyword(s):  
Deciduous Forest ◽  
Tree Height ◽  
Information Criterion ◽  
Confidence Bands ◽  
Natural Forests ◽  
Forest Types ◽  
Model Quality ◽  
Statistical Parameters ◽  
Santa Catarina ◽  
Ombrophilous Forest

Total tree height (h) is often difficult to measure in natural forests. Regression models based on easily accessed variables like DBH (d) can be an alternative, since their assumptions are validated. The aims of this study are to: (i) calibrate specific and generic h-d models for three forest types (Seasonal Deciduous Forest, DEC; Mixed Ombrophilous Forest, MIX; and Dense Rainforest, DEN) in Santa Catarina state testing the regression assumptions and evaluating model quality; (ii) verify different h-d relationship between forest types. The dataset (1,766 measured tree h and 3,150 estimated h) was collected by Santa Catarina Forest and Floristic Inventory (IFFSC) in 418 systematically located sample plots. Models were calibrated for two datasets, one containing hypsometer measurements, the other h estimations made by field crews. Specific models were calibrated for species with at least 30 sampled trees. Residual normality, randomness and heteroskedasticity were evaluated by analytical methods. Confidence bands were generated by the Working-Hotelling method; z test for means was applied to compare models based on the two databases. The statistical parameters such as corrected Akaike Information Criterion provided evidences that logarithmic models were better adjusted to the data. Both datasets were statistically different for DEN and MIX. Differences in h-d relationships were found between forest types. The use of calibrated h-d models is an alternative for studying the relationships between these variables and to assess vertical structure patterns of forest communities, when h measurements are not feasible, although, for situations that more accurate h values are needed, they will not always provide reliable predictions.

scholarly journals Molecular edge effects in the Endangered golden-brown mouse lemur Microcebus ravelobensis

Oryx ◽  
2018 ◽  
Vol 53 (4) ◽  
pp. 716-726 ◽  
Author(s):  
U. Radespiel ◽  
J. Schulte ◽  
R. J. Burke ◽  
S. M. Lehman
Keyword(s):  
Edge Effects ◽  
Deciduous Forest ◽  
Mitochondrial Control Region ◽  
Mouse Lemur ◽  
Continuous Forest ◽  
Ecological Changes ◽  
Close Proximity ◽  
Geographical Distances ◽  
Dry Deciduous Forest ◽  
Underlying Mechanisms

AbstractHabitat fragmentation creates habitat edges, and ecological edge effects can cause major changes in the ecology and distribution of many taxa. However, these ecological changes may in turn influence animal movements and lead to molecular edge effects and edge-related genetic structure, matters that are largely unexplored. This study aims to infer molecular edge effects and to test three possible underlying mechanisms in the Endangered golden-brown mouse lemur Microcebus ravelobensis, a nocturnal species in the dry deciduous forest of the Ankarafantsika National Park in north-western Madagascar. Mouse lemurs were sampled in one edge and two interior habitats in close proximity to each other (500–1,400 m) in a continuous forest. A total of 41 mouse lemur samples were genotyped with seven nuclear microsatellites, and a fragment of the mitochondrial control region was sequenced for all samples. The overall genetic diversity (allelic richness, heterozygosity, haplotype richness, nucleotide diversity) was lower in the edge habitat compared to the two interior sites and all subpopulations showed signals of relatively low genetic exchange and significant genetic differentiation between them despite the short geographical distances, supporting the local preference model. These findings can be interpreted as preliminary signals of a molecular edge effect and suggest the potential for local adaptation. They are highly relevant for the conservation of fragmented populations, because a further subdivision of already small populations may increase their vulnerability to stochastic demographic changes and collapse.

Seasonal variations in phenology and productivity of a tropical dry deciduous forest from MODIS and Hyperion

2015 ◽  
Vol 214-215 ◽  
pp. 91-105 ◽  
Author(s):  
Binal Christian ◽  
Nikita Joshi ◽  
Manjit Saini ◽  
Nirav Mehta ◽  
Sheshakumar Goroshi ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Deciduous Forest ◽  
Dry Deciduous Forest

Tree diversity and natural regeneration in Tropical Dry Deciduous Forest of Panna Tiger Reserve, India

2021 ◽  
Author(s):  
Talat Parveen ◽  
Orus Ilyas
Keyword(s):  
Species Diversity ◽  
Tree Species ◽  
Deciduous Forest ◽  
Basal Area ◽  
Stand Density ◽  
Tectona Grandis ◽  
Aegle Marmelos ◽  
Tree Stand ◽  
Tiger Reserve ◽  
Dry Deciduous Forest

Abstract The disturbance is a major factor driving the decline of tropical forests and their associated fauna. Henceforth, basic information on species diversity would be useful for assessing the success of management in the fragmented and human-disturbed landscape. We accounted for tree species diversity and their regeneration pattern from the tropical dry deciduous forest of Panna Tiger Reserve (PTR), India. Considering this, random vegetation sampling along with transects was carried out in different ranges of PTR. It is spread over in an area of 2998.98 km2 that situated in the northern part of Madhya Pradesh and distributed in Panna and Chhatarpur district. The tropical dry deciduous forest inventory in the 10.6132-ha area yielded a total of 46 woody species of > 10 cm GBH, belonged to 23 Families and 40 genera. The regeneration represented 27 species of < 30 cm height (seedling) under 16 families and 24 genera while sapling, which ranges from > 30cm to 1.3m, showed 24 species of 13 families and 32 genera. The Shannon diversity of Trees, seedlings, and saplings was 2.684, 2.525, and 2.401 respectively. A total stand density and basal area of 2391 stems of trees were estimated as 225.285 stand ha− 1 and 90.016 m2ha− 1 respectively. Tectona grandis scored the highest IVI value of 59.44 (19.81% of total IVI for all species) among the dominated tree species, followed by Acacia catechu (24.94), Abrus precatorius (23.25), Zizyphus xylopyra (22.94), Anogeissus latifolia (22.16) and Lagerstroemia parviflora (22.18). Nearly 23.913% of the total number of species was recorded as rare species. The highest seedling density was obtained for Diospyros melanoxylon followed by Zizyphus xylopyra, Aegle marmelos, Wrightia tintoria, and Tectona grandis, which declined in the subsequent sapling stage and showed a reverse pattern. Hence, the highest sapling density was recorded for Tectona grandis then Aegle marmelos, Wrightia tintoria, Diospyros melanoxylon, and Zizyphus xylopyra. A total of 36.956% of tree species were found to fail to establish in the community because species were represented by only adult or tree stage that listed as Not-regenerating. In terms of the most diverse family among the plant categories; viz. Tree, Seedling, Sapling, Fabaceae had the highest species richness. The highest tree stand density (127.576 stand ha− 1) was recorded in the girth class of 31-60cm (48.687% of the total tree stand density) followed by 10-30cm and 61-90cm. Likewise, a total basal area of 20.824 m2ha− 1 was occupied by 31-60cm that contributed 23.051% of the total basal area, so our data on the population structure of forest shows a similar trend wherein the distribution curve exponentially decreases with increasing girth classes that indicates not only a mid-successional forest but also a human-disturbed.

Sign in / Sign up

Export Citation Format

Share Document