Spatial Distribution, Temporal Variation and Specificity of Microhabitat of Tropisternus Species (Coleoptera: Hydrophilidae) in Permanent Ponds

Lutz, Maria Constanza Gómez; Kehr, Arturo Ignacio; Fernández, Liliana Alicia

doi:10.1007/s13744-015-0281-x

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…The respiratory demands of some of these genera may be satisfied by a thin layer of air maintained along their body surface (plastron), which makes regular ascents to the water surface, and some others have a respiratory siphon to intake atmospheric oxygen. Gómez Lutz et al (2015) found that the habitats and microhabitats (forming by different species of aquatic plants) directly influence the structure and the spatial and temporal variations of several species of Tropisternus.…”

Section: Discussionmentioning

confidence: 99%

Does the effect of aquatic plant types on invertebrate assemblages change across seasons in a subtropical wetland?

Gallardo¹,

Carnevali²,

Porcel³

et al. 2017

Limnetica

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Does the effect of aquatic plant types on invertebrate assemblages change across seasons in a subtropical wetland?Habitat complexity is one of the fundamental factors determining the distribution of invertebrate assemblages due to the different architectures and growth forms of aquatic plants, which affect their density, species richness, biomass, and trophic structure. In this paper, we compared the density and richness of macroinvertebrates present in two species of aquatic plants with different architectures (Salvinia biloba and Egeria najas) across seasons. Samples of aquatic plants and associated invertebrates were collected seasonally in a wetland located in Corrientes (Argentina) with a net area of 962 cm 2 . To characterize the different habitat types, we selected 12 traits of aquatic plants, including fractal complexity. A total of 15 225 invertebrates from 13 major groups were recorded from both habitat types (41 families and 24 genera in S. biloba and 24 families and 22 genera in E. najas). Significant differences in the total density (number of invertebrates per 1000 g plant dry weight) and taxa richness at family level were found between habitat types. Non-metric multidimensional scaling reflected differences in the seasonal patterns of 16 macroinvertebrate genera selected between both habitat types. A Similarity Analysis showed statistically significant differences between the habitat types and seasons. Structurally more complex habitat (S. biloba) supported a greater number of taxa and the highest number of individuals per plant dry weight. The differences in the density and richness of the invertebrate assemblages between S. biloba and E. najas were maintained throughout the seasons. The habitat structuring of aquatic macrophytes is a key factor in macroinvertebrate assemblages, and it is important to keep in mind when comparing wetlands with different aquatic vegetation.

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Section: Discussionmentioning

confidence: 99%

Does the effect of aquatic plant types on invertebrate assemblages change across seasons in a subtropical wetland?

Gallardo¹,

Carnevali²,

Porcel³

et al. 2017

Limnetica

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Population parameters of two water scavenger beetles:Derallus angustusSharp, 1882 andEnochrus vulgaris(Steinheil, 1869) (Coleoptera: Hydrophilidae) in permanent ponds: spatial distribution and microhabitat preference

Lutz

Kehr

2016

Tropical Zoology

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Spatial Distribution and Coexisting Patterns of Adults and Nymphs ofTibraca limbativentris(Hemiptera: Pentatomidae) in Paddy Rice Fields

2016

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The rice stem stink bug, Tibraca limbativentris Stål (Hemiptera: Pentatomidae), is a primary insect pest of paddy rice in South America. Knowledge of its spatial distribution can support sampling plans needed for timely decisions about pest control. This study aimed to investigate the spatial distribution of adults and nymphs of T. limbativentris and determine the spatial coexistence of these stages of development. Fifteen paddy rice fields were scouted once each season to estimate insect densities. Scouting was performed on regular grids with sampling points separated by ∼50 m. Moran's I and semivariograms were used to determine spatial distribution patterns. Spatial coexistence of nymphs and adults was explored via spatial point process. Here, adults and nymphs had typically contrasting spatial distribution patterns within the same field; however, the frequency of aggregation was not different between these developmental stages. Adults and nymphs were aggregated in seven fields and randomly distributed in the other eight fields. Uniform distribution of adults or nymphs was not observed. The study-wide semivariogram ranges were ∼40 m for adults and ∼55 m for nymphs. Nymphs and adults spatially coexisted on 67% of the fields. Coexisting patterns were classified using one of the following processes: stage-independent, bidirectional attractive, unidirectional attractive, bidirectional inhibiting, or unidirectional inhibiting. The information presented herein can be important for developing sampling plans for decision-making, implementing tactics for site-specific management, and monitoring areas free of T. limbativentris.

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Spatial Distribution, Temporal Variation and Specificity of Microhabitat of Tropisternus Species (Coleoptera: Hydrophilidae) in Permanent Ponds

Cited by 3 publications

References 20 publications

Does the effect of aquatic plant types on invertebrate assemblages change across seasons in a subtropical wetland?

Does the effect of aquatic plant types on invertebrate assemblages change across seasons in a subtropical wetland?

Population parameters of two water scavenger beetles:Derallus angustusSharp, 1882 andEnochrus vulgaris(Steinheil, 1869) (Coleoptera: Hydrophilidae) in permanent ponds: spatial distribution and microhabitat preference

Spatial Distribution and Coexisting Patterns of Adults and Nymphs ofTibraca limbativentris(Hemiptera: Pentatomidae) in Paddy Rice Fields

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