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Full-Text Articles in Biodiversity
The World’S Deepest Subterranean Community - Krubera-Voronja Cave (Western Caucasus), Alberto Sendra, Ana Sofia P.S. Reboleira
The World’S Deepest Subterranean Community - Krubera-Voronja Cave (Western Caucasus), Alberto Sendra, Ana Sofia P.S. Reboleira
Ana Sofia P.S. Reboleira
Subsurface biota extends over a wide variety of habitats that can be spatially interconnected. The largest communities of this subsurface biota inhabit cavities and are well known mainly in caves where biologists are able to have access. Data about deep subterranean communities and arthropods living under one thousand meters was unknown. An expedition to world’s deepest cave, Krubera-Voronja in Western Caucasus, revealed an interesting subterranean community, living below 2000 meters and represented by more than 12 species of arthropods, including several new species for science. This deep cave biota is composed of troglobionts and also epigean species, that can penetrate …
Invertebrate Communities Of Groundwater-Dependent Refugia With Varying Hydrology And Riparian Cover During A Supraseasonal Drought, Rosemary A. Burk, James H. Kennedy
Invertebrate Communities Of Groundwater-Dependent Refugia With Varying Hydrology And Riparian Cover During A Supraseasonal Drought, Rosemary A. Burk, James H. Kennedy
Rosemary A. Burk
Extreme disturbances eliminate aquatic biota and alter community structure and function. During a supraseasonal drought in north-central Texas in the summer and fall 2006, macroinvertebrate communities from persistent groundwater-dependent macrohabitats of varying hydrology and riparian shading were investigated to study their role as invertebrate refugia, and to characterize the taxonomic and functional community structure of benthic assemblages. Ash Creek was the only stream with surface flow within a 35-km radius during the drought. Two perennial and three intermittent stream sites were studied that included perennial riffles, a perennial pool, shaded disconnected pools, and disconnected pools in full sun. Riffles had …
Examining The Causes Of Rarity For The Odonata Of Illinois, Miranda R. White, Paul V. Switzer
Examining The Causes Of Rarity For The Odonata Of Illinois, Miranda R. White, Paul V. Switzer
Paul V. Switzer
Odonata (dragonflies and damselflies) play an important role in habitat management and conservation, but our understanding of the causes of commonness versus rarity in this group is limited. In this study we examined the causes of rarity for the Odonata of Illinois. Using S-ratings for conservation status and published habitat classifications for Illinois odonates, we investigated whether habitat type (lotic versus lentic) or habitat specificity (whether they were limited to a specific type of aquatic habitat) was related to commonness. We found that lotic species and habitat specialists were more likely to be rare than lentic and generalist species. More …
Anthropogenic Impacts Of Irrigation On The Arthropod Community Structure Of A Coastal Sage Scrub Habitat In Los Angeles, Victor D. Carmona
Anthropogenic Impacts Of Irrigation On The Arthropod Community Structure Of A Coastal Sage Scrub Habitat In Los Angeles, Victor D. Carmona
Victor D. Carmona-Galindo
We evaluated the effects of an irrigation system on the community structure of arthropods in a coastal sage scrub chaparral habitat. We placed 5 traps in the irrigated site and 5 traps in control site, for a total of 10 sticky traps (using Tree Tanglefoot) in an area adjacent to Ballona Wetlands in Los Angeles, California. The traps were set at the irrigated and non-irrigated site on Telegraph Weed for one week. Results showed that morphospecies richness, relative abundance, and taxonomic order representation were higher at the control site than at the irrigated site. Our study documents how anthropogenic impacts …