Abundance and diversity of soil arthropods in a tropical deciduous forest and mangrove forest of Kerala, India

The abundance and diversity of soil arthropods in the Marottichal tropical deciduous forest and Kodungallur mangrove habitat of Thrissur District were studied. A total of 98 species belonging to 15 orders and 5 classes were obtained from the study area. Of these, 59 species belonging to 13 orders and 3 classes were recorded from forest habitat and 47 species belonging to 8 orders and 4 classes from mangroves. Order Coleoptera was the most abundant in both forest (30.69%) and mangrove (36.5%) habitats. Sorenson’s similarity index showed only 15.09% similarity among species indicating that both the habitats harboured significantly different types of species. It was noted that, as the humidity and moisture decreased, the abundance of species also decreased in both habitats. Temperature was negatively correlated with abundance of species. The diversity in forest habitat (4.03) was higher than mangrove habitat (3.77). Maximum abundance was recorded during monsoon season (June- August) and least during winter season (December- February). The species accumulation curve plotted for the study area indicated that there are more species likely to be discovered in both the habitats.

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Biodiversity of butterflies in endosulfan-affected areas of Kerala, India

The Journal of Basic and Applied Zoology ◽

10.1186/s41936-020-00192-w ◽

2020 ◽

Vol 81 (1) ◽

Author(s):

K. N. Raghavendra ◽

Kumar Arvind ◽

G. K. Anushree ◽

Tony Grace

Keyword(s):

Monsoon Season ◽

Winter Season ◽

Wiener Index ◽

Long Term Effects ◽

Affected Area ◽

Butterfly Assemblages ◽

Abundance And Diversity ◽

The One ◽

One Way Anova

Abstract Background Butterflies are considered as bio-indicators of a healthy and diversified ecosystem. Endosulfan was sprayed indiscriminately in large plantations of Kasaragod district, Kerala which had caused serious threats to the ecosystem. In this study, we surveyed the butterflies for their abundance and diversity in three differentially endosulfan-affected areas viz., Enmakaje—highly affected area, Periye—moderately affected area, Padanakkad—unaffected area, carried out between the end of the monsoon season and the start of the winter season, lasting approximately 100 days. Seven variables viz., butterfly abundance (N), species richness (S), Simpson’s reciprocal index (D), the Shannon–Wiener index (H′), the exponential of the Shannon–Wiener index (expH′), Pielou’s evenness (J) and species evenness (D/S), related to species diversity were estimated, followed by the one-way ANOVA (F = 25.01, p < 0.001) and the Kruskal-Wallis test (H = 22.59, p < 0.001). Results A population of three different butterfly assemblages comprised of 2300 butterflies which represented 61 species were encountered. Our results showed that Enmakaje displayed significantly lower butterfly diversity and abundance, compared to the other two communities. Conclusion So far, this is the first study concerning the effect of endosulfan on the biodiversity of butterfly in the affected areas of Kasaragod, Kerala, India. This study may present an indirect assessment of the persisting effects of endosulfan in the affected areas, suggesting its long-term effects on the ecosystem.

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CAM-cycling in the cycad Dioon edule Lindl. in its natural tropical deciduous forest habitat in central Veracruz, Mexico

Botanical Journal of the Linnean Society ◽

10.1046/j.1095-8339.2002.138002155.x ◽

2002 ◽

Vol 138 (2) ◽

pp. 155-162 ◽

Cited By ~ 15

Author(s):

Andrew P. Vovides ◽

John R. Etherington ◽

P. Quentin Dresser ◽

Andrew Groenhof ◽

Carlos Iglesias ◽

...

Keyword(s):

Deciduous Forest ◽

Tropical Deciduous Forest ◽

Forest Habitat ◽

Dioon Edule

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Beta diversity of four braconid subfamilies (Braconidae, Agathidinae, Braconinae, Doryctinae and Macrocentrinae) of the Ria Lagartos Biosphere reserve in Yucatan, Mexico, with some considerations on biological habits

Journal of Hymenoptera Research ◽

10.3897/jhr.67.28982 ◽

2018 ◽

Vol 67 ◽

pp. 63-83

Author(s):

Roger Cauich-Kumul ◽

Hugo Delfín-González ◽

Abdiel Martín-Park ◽

Pablo Manrique-Saide ◽

Víctor López-Martínez

Keyword(s):

Species Diversity ◽

Beta Diversity ◽

Deciduous Forest ◽

Biosphere Reserve ◽

Tropical Deciduous Forest ◽

Dune Vegetation ◽

Vegetation Communities ◽

Abundance And Diversity ◽

One Year ◽

Malaise Traps

The species diversity composition and phenological behaviour of four braconid subfamilies (Hymenoptera: Braconidae: Agathidinae, Braconinae, Doryctinae and Macrocentrinae) were monitored in three vegetation communities (dune vegetation, tropical deciduous forest and savannah) of the Ria Lagartos Biosphere Reserve (RLBR) in Yucatan, Mexico. Braconid wasps were collected with Malaise traps every 15 days over one year (June 2008 to June 2009). A total of 2,476 specimens were inventoried comprising 233 species and 63 genera. The composition of braconids and their lifestyles differed among the three vegetation communities studied. Doryctinae was the most diverse and abundant subfamily in RLBR (40 genera, 145 species, 990 specimens) and the tropical deciduous forest recorded the maximum abundance and diversity (H’= 4.1; alpha value= 1.059), with 61 exclusive species. Phenological sequence indicates an influence of the rainy season in braconid diversity, but its effects differed among braconid subfamilies and among the vegetation communities. Finally, the importance of the RBRL as a conservation site for this hymenopterous wasp is discussed.

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Effects of deforestation on seed banks in a tropical deciduous forest of western Mexico

Journal of Tropical Ecology ◽

10.1017/s0266467499000747 ◽

1999 ◽

Vol 15 (2) ◽

pp. 179-188 ◽

Cited By ~ 29

Author(s):

P. M. Miller

Keyword(s):

Species Composition ◽

Seed Bank ◽

Growth Form ◽

Deciduous Forest ◽

Similarity Index ◽

Tropical Deciduous Forest ◽

Western Mexico ◽

Pasture Grasses ◽

One Year ◽

Germinating Seeds

Seed density and seed bank species composition were determined by germination trials on soils collected during the initial phase of deforestation in a Mexican tropical deciduous forest. The reference forest, pre-burn, 1-d post-burn, and 1-y post-burn soils contained 700, 1000, 70 and 3500 germinating seeds m−2, of 30, 30, 8 and 13 species, respectively. A total of 43 dicotyledonous species were identified. Percentages of herbs, vines, shrubs and small trees/shrubs were similar in reference forest, pre-burn, and 1-d post-burn soils; herbs were the most common growth form. Pasture conversion greatly altered seed bank species composition; 81% of the species that germinated from the seed bank before burning were absent from the seed bank 1 d after the fires. One-year post-burn soil was dominated by monocots; only 3% of the seedlings were herbs; no vines, small trees/shrubs or trees germinated. The reference forest and the pre-burn soils had 18 dicot species in common and the highest similarity index, 0.43; six of the shared species were herbs. One-day and 1-y post-burn soils had the lowest similarity index, 0.05. Burning the slashed forest and conversion to cattle pasture depleted the original seed bank, replacing it by one dominated by pasture grasses.

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Lithobates magnaocularis Frost & Bagnara, 1974, the Northwest Mexico Leopard Frog (Anura: Ranidae): new state records for Aguascalientes and Zacatecas, Mexico

Check List ◽

10.15560/11.6.1804 ◽

2015 ◽

Vol 11 (6) ◽

pp. 1804

Author(s):

Gustavo Ernesto Quintero-Díaz ◽

Edmundo Pérez-Ramos ◽

Rubén Alonso Carbajal-Márquez

Keyword(s):

Adult Female ◽

Deciduous Forest ◽

Rio Grande ◽

Leopard Frog ◽

Tropical Deciduous Forest ◽

Forest Habitat ◽

Northwest Mexico ◽

State Records

We report an adult female and subadult specimen of the frog Lithobates magnaocularis Frost & Bagnara, 1974 from tropical deciduous forest habitat in the Municipality of Calvillo, Aguascalientes and Valparaiso, Zacatecas, Mexico. These vouchers represent the first state records of L. magnaocularis for Aguascalientes and Zacatecas, and extend the known distribution of the species through the northeastern portion of the tributaries of the Río Grande de Santiago basin.

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PREVALENCE OF PSEUDOINVERTA ORAIENSIS IN FRESH WATER FISH, CLARIAS BATRACHUS

FLORA AND FAUNA ◽

10.33451/florafauna.v25i1pp66-68 ◽

2019 ◽

Vol 25 (1) ◽

Author(s):

ADITYA NARAYAN

Keyword(s):

Fresh Water ◽

Monsoon Season ◽

Winter Season ◽

Uttar Pradesh ◽

Summer Season ◽

Clarias Batrachus ◽

Fresh Water Fish ◽

Water Fish

The present investigation deals with the prevalence of infection of cestode, Pseudoinverta oraiensis19 parasitizing Clarias batrachus from Bundelkhand Region (U.P.) India. The studies were recorded from different sampling stations of Bundelkhand region of Uttar Pradesh. For this study 360 fresh water fish, Clarias batrachus were examined. The incidence of infection, monsoon season (17.50%) followed by winter season (20.00%) whereas high in summer season (30.00%).

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Abundance and diversity of soil arthropods in disturbed and undisturbed ecosystem in Western Amhara, Ethiopia

International Journal of Tropical Insect Science ◽

10.1007/s42690-021-00600-w ◽

2021 ◽

Author(s):

Melaku Wale ◽

Sofia Yesuf

Keyword(s):

Soil Arthropods ◽

Abundance And Diversity

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Paleoecological and archaeological implications of a Late Pleistocene/Early Holocene record of vegetation and climate from the Pacific coastal plain of Panama

Quaternary Research ◽

10.1016/s0033-5894(02)00021-2 ◽

2003 ◽

Vol 59 (1) ◽

pp. 79-87 ◽

Cited By ~ 64

Author(s):

Dolores R. Piperno ◽

John G. Jones

Keyword(s):

Tropical Forest ◽

Late Pleistocene ◽

Coastal Plain ◽

Deciduous Forest ◽

Early Holocene ◽

Tropical Deciduous Forest ◽

Human Occupation ◽

Core Sediment ◽

The Pacific ◽

Holocene Record

AbstractA phytolith record from Monte Oscuro, a crater lake located 10 m above sea level on the Pacific coastal plain of Panama, shows that during the Late Pleistocene the lake bed was dry and savanna-like vegetation expanded at the expense of tropical deciduous forest, the modern potential vegetation. A significant reduction of precipitation below current levels was almost certainly required to effect the changes observed. Core sediment characteristics indicate that permanent inundation of the Monte Oscuro basin with water occurred at about 10,500 14C yr B.P. Pollen and phytolith records show that deciduous tropical forest expanded into the lake’s watershed during the early Holocene. Significant burning of the vegetation and increases of weedy plants at ca. 7500 to 7000 14C yr B.P. indicate disturbance, which most likely resulted from early human occupation of the seasonal tropical forest near Monte Oscuro and the development of slash-and-burn methods of cultivation.

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Wood Specific Gravity in Species from Two Tropical Forests in Mexico

IAWA Journal ◽

10.1163/22941932-90001041 ◽

1987 ◽

Vol 8 (2) ◽

pp. 143-148 ◽

Cited By ~ 37

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.

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