Arthropod fauna of jarrah (Eucalyptus marginata) foliage in Mediterranean forest of Western Australia: Spatial and temporal variation in abundance, biomass, guild structure and species composition

1992 ◽  
Vol 17 (3) ◽  
pp. 263-274 ◽  
Author(s):  
I. ABBOTT ◽  
T. Burbidge ◽  
M. WILLIAMS ◽  
P. Heurck
Keyword(s):  
Species Composition ◽  
Temporal Variation ◽  
Western Australia ◽  
Mediterranean Forest ◽  
Spatial And Temporal Variation ◽  
Guild Structure ◽  
Eucalyptus Marginata ◽  
Arthropod Fauna

Living with an engineer: fish metacommunities in dynamic patchy environments

2018 ◽  
Vol 69 (6) ◽  
pp. 883 ◽  
Author(s):  
Aneta Bylak ◽  
Krzysztof Kukuła
Keyword(s):  
Community Structure ◽  
Species Composition ◽  
Temporal Variation ◽  
Fish Species ◽  
Environmental Heterogeneity ◽  
Size Structure ◽  
Local Communities ◽  
Spatial And Temporal Variation ◽  
The Creation ◽  
Fish Species Composition

Different environmental preferences and dispersal abilities allow fish to coexist in local communities. In the present study we analysed the effects of engineering species on the community structure based on the example of the European beaver (Castor fiber) and mountainous European stream fish. We hypothesised that the creation of beaver impoundments increases environmental heterogeneity and causes a strong spatial and temporal variation in fish species composition and size structure. Finally, we placed these results in the context of the metacommunity theory. Our research was conducted over a large spatial scale, and over a relatively long (5-year) temporal scale. Data analysis revealed strong environmental gradients associated with stream size and increased environmental heterogeneity associated with the creation of beaver impoundments. The results also indicated strong spatial and temporal variation in fish species composition and size structure associated with this environmental heterogeneity. Although local communities changed over time, the main metacommunity characteristics remained constant. Fish must move and follow environmental changes for their populations and communities to persist in streams inhabited by beavers. Gaining a deeper understanding of the effects of the engineering species on fish community structure may help inform management and the conservation of stream ecosystems.

Spatial and Temporal Variation in Guild Structure: Parasitoids and Inquilines of Andricus quercuscalicis (Hymenoptera: Cynipidae) in Its Native and Alien Ranges

Oikos ◽  
1995 ◽  
Vol 72 (1) ◽  
pp. 51 ◽  
Author(s):  
Karsten Schönrogge ◽  
Graham N. Stone ◽  
Michael J. Crawley ◽  
Karsten Schonrogge
Keyword(s):  
Temporal Variation ◽  
Spatial And Temporal Variation ◽  
Guild Structure

SPATIAL AND TEMPORAL VARIATION IN ABUNDANCE, SEX RATIO, AND SPECIES COMPOSITION OF CONNECTICUT RHAGIONIDAE (DIPTERA)

1987 ◽  
Vol 119 (1) ◽  
pp. 55-65
Author(s):  
Chris T. Maier ◽  
Donald W. Webb
Keyword(s):  
Sex Ratio ◽  
Species Composition ◽  
Temporal Variation ◽  
Sex Ratios ◽  
The State ◽  
Spatial And Temporal Variation ◽  
Emergence Traps ◽  
Relative Abundances ◽  
Malaise Traps

AbstractRhagionids were studied principally by capturing adults in emergence traps at Southington (1979) and in Malaise traps at Hamden (1980–1983) and Guilford, CT (1983–1985). Most captures of Chrysopilus rotundipennis Loew, C. thoracicus (Fabr.), Rhagio mystaceus (Say), and Symphoromyia hirta Johnson occurred during a 2- to 5-week period. Mean capture dates for sexes differed significantly in only a few cases. Based on percentage of total captured, S. hirta and R. mystaceus ranked first and second at Hamden whereas C. rotundipennis and S. hirta had these respective ranks at Guilford. The sex ratio of C. ornatus (Say) adults in emergence traps did not depart significantly from 1.0, but most rhagionids captured in Malaise traps had skewed sex ratios. Based on percentage and quotient of similarity, faunas at Hamden and Guilford shared many species, but relative abundances of species common at one or both sites were very different. In this study, we found 14 rhagionid species, including 4 not previously recorded from Connecticut. A total of 16 species are now recorded from the state.

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