Insect Species Diversity as a Function of Environmental Variability and Disturbance in Stream Systems

Microhabitats capacity to support insect species diversity and persistence were evaluated implementing solitary parasitoids and predatory insects according to different phases of herbicide and chemical fertilizer applications. Two species of the genus Xanthopimpla (Ichneumonidae) and one species of the genus Pompilus (Pompilidae) showed relationships on vegetation-type microhabitats, notably natural weeds, leguminous cover crops, and the beneficial plant Turnera subulata, while two species of the genus Evania (Evaniidae) showed relationships with chipped oil palm trunks. One species from the genus Odontomachus (Formicidae) as an exclusive predatory ant was related to both chipped oil palm trunks and the beneficial plant T. subulata. Xanthopimpla parasitoids exhibited abundance fluctuations difference around natural weeds during herbicide application phases between three- and six-years old oil palm stands, with decreased and increased abundance patterns of the former and the latter, respectively. 18 years old oil palm stand showed increased abundance patterns only along with the different phases of chemical fertilizer applications. The importance of natural weeds diversity, restrictions of leguminous cover crops, frequency of herbicide applications, and the arrangements between beneficial plants and wood-based microhabitats that benefited insect parasitoids and predators were discussed.

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Spatial Distribution of Insect Diversity in Selected Locations within Forestry Research Institute of Nigeria, Ibadan, Nigeria

Journal of Applied Sciences and Environmental Management ◽

10.4314/jasem.v25i7.21 ◽

2021 ◽

Vol 25 (7) ◽

pp. 1249-1255

Author(s):

O.A. Aina-Oduntan ◽

Q.A. Onilude ◽

J.A. George-Onaho ◽

A.I. Woghiren ◽

O.R. Jeminiwa

Keyword(s):

Species Diversity ◽

Relative Abundance ◽

Habitat Modification ◽

Insect Species ◽

Line Transect ◽

Microsoft Excel ◽

Forestry Research ◽

Significant Difference ◽

Ibadan Nigeria ◽

Research Institute

With the increase in the rate of tree removal and construction of buildings within the Forestry Research Institute of Nigeria premises, there has been concomitant rise in habitat modification. These changes in habitat composition affect the insect population. This study therefore investigated the insect species diversity and abundance within some selected locations within FRIN with the view to determining different insect species available in FRIN premises. Sweep nets were used to trap the insects along a predetermined line transect. Data were analyzed using Microsoft Excel 2007 and Paleontological Statistics were used for the data analysis. Descriptive statistics, one-way analysis of variance (ANOVA) and species diversity and composition were all assessed. A total number of 1073 individual insects belonging to 6 orders, 27 families and 34 species were recorded across the three locations. Out of this, Order Lepidoptera had the highest relative abundance (53%), followed by Coleoptera (22%), then by Hymenoptera, Hemiptera, Heteroptera and Diptera with 10%, 9%, 4% and 2% relative abundance respectively. The result of ANOVA showed that there was no significant difference in species composition/richness across the locations at probability level of 5%. The insect species diversity, evenness and richness also varied across the locations. This study therefore, brings to the fore the diversity and abundance of insects within FRIN premises and highlighted the need for a more intensive study by the entomology section and for sustainable actions to be taken in conserving beneficial rare species while, managing the abundant pestiferous ones.

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Effects of genetic diversity of grass on insect species diversity at higher trophic levels are not due to cascading diversity effects

Oikos ◽

10.1111/j.1600-0706.2010.18957.x ◽

2011 ◽

Vol 120 (7) ◽

pp. 1031-1036 ◽

Cited By ~ 12

Author(s):

Thomas S. Jones ◽

Eric Allan ◽

Simone A. Härri ◽

Jochen Krauss ◽

Christine B. Müller ◽

...

Keyword(s):

Genetic Diversity ◽

Species Diversity ◽

Trophic Levels ◽

Insect Species ◽

Diversity Effects

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THE DIVERSITY OF PHYTOPHAGE AND ENTOMOPHAGE INSECT SPECIES IN SUGARCANE PLANTATIONS PLANTED WITH FLOWERING PLANTS

BIOVALENTIA Biological Research Journal ◽

10.24233/biov.6.1.2020.174 ◽

2020 ◽

Vol 6 (1) ◽

Author(s):

Saida Fitriani Azim ◽

Chandra Irsan ◽

Yulia Pujiastuti

Keyword(s):

Species Diversity ◽

Sugar Cane ◽

Diversity Index ◽

Flowering Plants ◽

Insect Species ◽

Species Diversity Index ◽

Direct Capture ◽

Index Value

This study aimed to know the influence of planting the flowering plants in sugarcane plantation on the index value of diversity, domination, and the eveness of phytophage and entomophage insect species in sugarcane plantation. This study was done on two-month and six-month sugarcane of PT. Perkebunan Nusantara VII Cinta Manis District. The research location is located in Ketiau Village, Lubuk Keliat District, Ogan Ilir Regency, South Sumatra. The study was conducted from July to December 2018. Insects that came to flowering plants were collected by using fitfall traps, nets, and direct capture of insects that came. The results showed that the age of sugarcane affected the diversity of Entomophage and Phytophage insect species that came to the flowering plants. At 2-moth-old sugar cane plantations were found 42 species (388 individuals) and 6-month-old sugarcane plantations were found 41 species (284 individuals). The diversity of Phytophage and Entomophage species that came to flowering plants in the 2-month-old sugarcane plantations was almost the same as in the 6-month-old sugarcane plantations. Phytopage species diversity index values were 2,826 and 2,548, while Entomophage were 2,564 and 2,867.

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Distribution pattern and mechanism of insect species diversity in Inner Mongolia

Biodiversity Science ◽

10.17520/biods.2018144 ◽

2018 ◽

Vol 26 (7) ◽

pp. 701-706

Author(s):

Yu Zhang ◽

◽

Gang Feng

Keyword(s):

Species Diversity ◽

Distribution Pattern ◽

Inner Mongolia ◽

Insect Species

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Keragaman Serangga di Pola Pertanaman Tumpang Sari Kedelai-Titonia

Agrosains: Jurnal Penelitian Agronomi ◽

10.20961/agsjpa.v23i1.47920 ◽

2021 ◽

Vol 23 (1) ◽

pp. 27

Author(s):

Putri Mustika Sari ◽

Adriansyah Yoesoep ◽

Lisdayani Lisdayani

Keyword(s):

Species Diversity ◽

Direct Observation ◽

Crop Production ◽

Diversity Index ◽

Insect Species ◽

Insect Diversity ◽

Wide Range ◽

Index Value ◽

Piezodorus Guildinii ◽

Sweep Net

Plants that have a wide range of insect presence, decreased insect diversity and abundance were so few consequenced because the absence of one insect species can be replaced by the presence of another. The bad consequences that occur are the types of plants that have specific insect specificities because the absence of these insects will cause the failure of plant pollination and will directly cause a decrease in crop production. This study aimed to determine the diversity of insect species that come in the soybean-tithonia intercropping. The method was used direct observation in tithonia-soybean intercropping, took insects using a sweep net in the morning. The results showed that there were 15 types of insects identified, namely Epilachna sp.; Coccinella sexmaculata; Coccinella transveralis; Verania lineata; Ropalidia fasciata; Priocnemis sp.; Naupactus leucoloma; Piezodorus guildinii; Bemicia tabaci; Agromyza phaseoli; Spodoptera sp.; Nezara viridula; Paederus fusipes; Hylaeus sp.; and Trigona sp. The range of results of the calculation of the diversity index showed that the five treatments in intercropping plants had the same abundance. So it was needed to calculate the highest diversity index value or maximum H expressed in Ln S. The maximum H value in this study is 2.708, which is a measure of moderate species diversity (1<H’<3).

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Geographical determinations of insect species diversity in the Hawaiian and Galapagos archipelagos; a biogeographical analysis.

10.22215/etd/1997-03618 ◽

1997 ◽

Author(s):

Patrick Wigfull

Keyword(s):

Species Diversity ◽

Insect Species ◽

Biogeographical Analysis

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Insects Associated with Cucumbers (Cucumis SativusL.) At Bamunka-Ndop(North West Region, Cameroon)

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v11i.8840 ◽

2020 ◽

Vol 11 ◽

pp. 145-159

Author(s):

Esther Nadine Otiobo Atibita ◽

Champlain Djieto-Lordon ◽

Fernand-Nestor Tchuenguem Fohouo

Keyword(s):

Species Diversity ◽

Relative Humidity ◽

Cucumis Sativus ◽

Relative Abundance ◽

Insect Species ◽

North West ◽

Yield And Quality ◽

West Region ◽

Stems And Leaves

Studies on insects associated with cucumbers (Cucumis sativus) in Bamunka-ndop (North-West, Cameroon) under field conditions were conducted in 2017 and 2018 from April to July. The insect species diversity, the relative abundance, the frequency of visits and guilds were recorded on the plant from 7 am to 6 pm in a 2 hours time slots. Insects were found on the stem, leaves and flowers of Cucumber. There were 10 insect species belonging to 4 Orders. Out of these, four species belonged to Hymenoptera (54.15%), whereas the Coleoptera (33.18%), the Orthoptera (7.83%) and the Diptera (4.84%) owned two species each. Formica sp. being the most represented insect (24.42%) followed by A. mellifera (21.66%). Nectarivorous, pollinivorous, stems and leaves feeders and flowers and leaves feeders were found on the crop. The peak of activities of all the insect species was situated between 10 am and 12pm even though the temperature and the relative humidity of the study site appear not to affect their activities on the plant. These studies therefore indicated that the insects associated to cucumber should be exploited to work on their activities on cucumber and enhancing yield and quality of the fruits.

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