Microhabitat and landscape influences on aquatic beetle assemblages in a cluster of temporary and permanent ponds

Fairchild, G. Winfield; Cruz, Joaquín; Faulds, Ann M.; Short, Andrew Edward Z.; Matta, James F.

doi:10.2307/1467994

Cited by 76 publications

(67 citation statements)

References 29 publications

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“…They feed and reproduce in the water, and adults of most species immigrate and emigrate to and from ponds if local conditions change (pond drying) or aestivate in the dry pond basin. Many species of aquatic insects, including coleopterans, show increased abundance and richness correlated with the amount of open canopy at ponds ( Matta, 1979;Nilsson & Svensson, 1995;Batzer et al , 2000Batzer et al , , 2004Palik et al , 2001;Fairchild et al , 2003;Tuno et al , 2005 ). Most species at our study site are predaceous diving beetles (Dytiscidae), with carnivorous adults and larvae, or water scavenger beetles (Hydrophilidae), with primarily omnivorous or herbivorous adults (grazer/scavengers) and carnivorous larvae.…”

Section: Study Organismsmentioning

confidence: 81%

Spatial and temporal dynamics of habitat selection across canopy gradients generates patterns of species richness and composition in aquatic beetles

Binckley

Resetarits

2009

Ecological Entomology

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. 1. Colonisation is a critical ecological process influencing both population and community level dynamics by connecting spatially discrete habitat patches. How communities respond to both natural and anthropogenic disturbances, furthermore, requires a basic understanding of how any environmental change modifies colonisation rates. For example, disturbance-induced shifts in the quantity of forest cover surrounding aquatic habitats have been associated with the distribution and abundance of numerous aquatic taxa. However, the mechanisms generating these broad and repeatable field patterns are unclear.2. Such patterns of diversity could result from differential spatial mortality post colonisation, or from colonisation alone if species select sites non-randomly along canopy coverage gradients. We examined the colonisation/oviposition dynamics of aquatic beetles in experimental ponds placed under both open and closed forest canopies.3. Canopy coverage imposed a substantial behavioural filter on the colonisation and reproduction of aquatic beetles representing multiple trophic levels, and resulted in significantly higher abundance, richness, and oviposition activity in open canopy ponds. These patterns strengthened overtime; although early in the experiment, the most abundant beetle had similar abundance in open and closed ponds. However, its abundance subsequently declined and then most other species heavily colonised open canopy ponds.4. The primary response of many aquatic species to disturbances that generate canopy coverage gradients surrounding aquatic ecosystems is behavioural. The magnitude of the colonisation responses reported here rivals, if not exceeds, those produced by predators, suggesting that aquatic landscapes are behaviourally assessed and partitioned across multiple environmental gradients. The community level structure produced solely by selective colonisation, is predicted to strongly modify how patch area and isolation affect colonisation rates and the degree to which communities are linked by the flux of individuals and species.Key words . Colonisation , connectivity , dispersal , diversity , oviposition site selection , metacommunity . Thus, predicting the responses of species and communities to both natural and anthropogenic environmental change requires an understanding of how different dispersal strategies are distributed among sets of species, and how these interact with environmental heterogeneity to affect patch-specific colonisation rates ( Binckley & Resetarits, 2002.Aquatic communities are embedded within a terrestrial matrix, and linked strongly to this matrix by the movement of multiple species across aquatic-terrestrial boundaries ( Wilbur, 1997 ). Disturbances such as fire, timber harvest, etc. generate gradients of canopy coverage surrounding freshwater habitats that correlate with variation in numerous abiotic and biotic factors in the underlying waters ( Werner & Glennemeier, 1999;Skelly et al. , 2002;Batzer et al. , 2004;Schiesari, 2006 ). Arranging aquatic habitats...

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Section: Study Organismsmentioning

confidence: 81%

Spatial and temporal dynamics of habitat selection across canopy gradients generates patterns of species richness and composition in aquatic beetles

Binckley

Resetarits

2009

Ecological Entomology

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“…Angus (1992) indicates that species of Helophoridae need about 20°C water temperature for larval development in the laboratory conditions, so life-history cannot be completed in lower temperatures. Fairchild et al (2003) stated that higher water temperatures may allow more rapid completion of larval stages. However, during our field surveys Helophorus obscurus specimens were sampled from waters with 14.5-16.6°C temperatures, Laccobius scutellaris and Laccobius simulatrix were sampled from 17.7°C water in Aydın (İkizdere) province.…”

Section: Discussionmentioning

confidence: 99%

Ecological investigations on Hydrophilidae and Helophoridae (Coleoptera) specimens gathered from several water bodies of Western Turkey

AKÜNAL

Aslan

2017

Knowl. Manag. Aquat. Ecosyst.

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-The aim of this study is to present environmental variables which were effective on habitat preferences of Hydrophilidae and Helophoridae species found in western region of Turkey. The surveys were conducted in İzmir, Manisa and Aydın provinces and specimens were collected regularly during the years 2013 and 2014. Totally, 30 species classified in 8 genera of the two families were recorded. Physicochemical parameters including temperature, dissolved oxygen, pH, electrical conductivity and salinity were measured from 99 different aquatic sites. The relationships between the species and the effect (s) of the mentioned parameters on the presence or absence of the beetles were evaluated by various statistical tests. According to the results; electrical conductivity, salinity and temperature are the main water parameters associated with aquatic beetle distribution. Pearson's correlation analysis coefficient between the salinity and electrical conductivity parameters was calculated as 0.965 which is statistically significant (p < 0.01). The relationships between environmental variables and the determined species were also evaluated with canonical correspondence analysis (CCA), and the distributions of species according to these variables were presented by using a CCA plot. Les paramètres physicochimiques incluant la température, l'oxygène dissous, le pH, la conductivité électrique et la salinité ont été mesurés dans 99 sites aquatiques différents. Les relations entre espèces et l'effet(s) des paramètres mentionnés sur la présence ou l'absence des coléoptères ont été évaluées par divers tests statistiques. Selon les résultats; la conductivité électrique, la salinité et la température sont les principaux paramètres associés à la distribution des coléoptères aquatiques. Le coefficient de corrélation de Pearson entre la salinité et les paramètres de conductivité électrique est de 0.965, statistiquement significatif (p < 0.01). Les relations entre les variables environnementales et les espèces déterminées ont également été évaluées par analyse canonique de correspondance (CCA), et les distributions des espèces selon ces variables ont été présentées en utilisant un diagramme CCA.Mots-clés : Hydrophilidae / Helophoridae / écologie / CCA / Turquie

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“…re-colonizing the waters each spring (Nilsson & Svensson, 1995), and several Hydroporus spp. have been recorded flying around in the landscape in the spring colonizing new aquatic habitats in wetlands both in south-east Sweden (Lundkvist et al, 2002), and in northern Delaware, USA (Fairchild et al, 2003). Other strategies of colonizing new aquatic habitats include following the flood, which eventually covers the wet meadows, or to break the reproductive diapause as found for Agabus disintegratus (Garcia & Hagen, 1987).…”

Section: Discussionmentioning

confidence: 99%

Diving beetle assemblages of flooded wetlands in relation to time, wetland type and Bti-based mosquito control

et al. 2009

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This paper has not been submitted elsewhere in identical or similar form, nor will it be during the first three months after its submission to Hydrobiologia. 2 AbstractWe investigated the abundance and taxonomic composition of the aquatic predatory insect fauna, with focus on adult diving beetles (Coleoptera: Dytiscidae), in eight temporary flooded relation to time and wetland type, and 2) to evaluate the effect on the aquatic predator assemblage of strongly reducing the abundance of a potential prey, flood-water mosquito larvae (Diptera: Culicidae) with Bacillus thuringiensis var. israelensis (Bti) during floods. We found diving beetles to be the dominating aquatic predatory insect taxa in all ten wetlands.There was a difference in Dytiscidae species richness but not in diversity between wet meadows and alder swamps after rarefaction. The cluster analysis based on dytiscid species and abundances showed very high similarities between the wetlands. The variance component analysis was unable to distinguish any factor that could explain more than 7.4% of the variation in the dytiscid species assemblages. The only effect of Bti-treatment against floodwater mosquito larvae, potential food for the predatory dytiscids, was a slight increase in abundance of the medium-sized dytiscid species. Our results are in accordance with previous studies, suggesting that irregular and recurrent flood dynamic structure the dytiscid fauna more than food limitations and environmental factors.3

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Microhabitat and landscape influences on aquatic beetle assemblages in a cluster of temporary and permanent ponds

Cited by 76 publications

References 29 publications

Spatial and temporal dynamics of habitat selection across canopy gradients generates patterns of species richness and composition in aquatic beetles

Spatial and temporal dynamics of habitat selection across canopy gradients generates patterns of species richness and composition in aquatic beetles

Ecological investigations on Hydrophilidae and Helophoridae (Coleoptera) specimens gathered from several water bodies of Western Turkey

Diving beetle assemblages of flooded wetlands in relation to time, wetland type and Bti-based mosquito control

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