Space utilization in a community of temperate reef fishes inhabiting small experimental artificial reefs

1982 ◽  
Vol 60 (5) ◽  
pp. 798-806 ◽  
Author(s):  
Dominique Gascon ◽  
Roberta A. Miller
Keyword(s):  
Space Use ◽  
Reef Fishes ◽  
Spatial Dimension ◽  
Artificial Reefs ◽  
Contingency Table Analysis ◽  
Barkley Sound ◽  
Temperate Reef ◽  
Table Analysis ◽  
Sebastes Melanops ◽  
Multidimensional Contingency Table

Using multidimensional contingency table analysis, we investigated the pattern of space use in an assemblage of nearshore reef fishes inhabiting small artificial reefs in Barkley Sound, British Columbia. Two variables, (1) shelter type and size, and (2) elevation above substrate, were specifically studied. All species had precise microhabitat requirements, and they all showed segregation in the spatial dimension, with the exception of the pair Sebastes caurinus – S. maliger. Only Sebastes melanops showed consistent shifts in its space use in response to increases in the density of the other members of the community, indicating that, with this exception, interspecific competition was probably a weak force in this system.

Assessing the performance of artificial reefs as substitute habitat for temperate reef fishes: Implications for reef design and placement

2019 ◽  
Vol 668 ◽  
pp. 139-152 ◽  
Author(s):  
Valeriya Komyakova ◽  
Dean Chamberlain ◽  
Geoffrey P. Jones ◽  
Stephen E. Swearer
Keyword(s):  
Reef Fishes ◽  
Artificial Reefs ◽  
Temperate Reef

Erratum: Space utilization in a community of temperate reef fishes inhabiting small experimental artificial reefs

1982 ◽  
Vol 60 (10) ◽  
pp. 2533-2533
Author(s):  
Dominique Gascon ◽  
Roberta A. Miller
Keyword(s):  
Reef Fishes ◽  
Artificial Reefs ◽  
Space Utilization ◽  
Temperate Reef

A Multidimensional Contingency Table Analysis of Parole Outcome

1978 ◽  
Vol 15 (2) ◽  
pp. 172-193 ◽  
Author(s):  
David J. van Alstyne ◽  
Michael R. Gottfredson
Keyword(s):  
Contingency Table ◽  
Contingency Table Analysis ◽  
Table Analysis ◽  
Multidimensional Contingency Table

A multispecies aphid–ant association: density dependence and species-specific effects

1979 ◽  
Vol 57 (3) ◽  
pp. 558-569 ◽  
Author(s):  
John F. Addicott
Keyword(s):  
Contingency Table Analysis ◽  
Density Dependent ◽  
Tapinoma Sessile ◽  
Specific Effects ◽  
Large Populations ◽  
Table Analysis ◽  
Central Rocky Mountains ◽  
The Stability ◽  
Species Specific ◽  
Multidimensional Contingency Table

In the central Rocky Mountains of Colorado 4 species of aphids feed on fireweed, and 10 species or ants have been observed tending 3 of these species of aphids. Local populations of aphids and their associated ants were counted nondestructively at weekly intervals for up to 11 weeks. The effects of ants upon the persistence of recently initiated populations and the growth of populations during 1-week intervals were assessed by multidimensional contingency table analysis. Macrosiphum valerianae, which is not tended by ants, was affected negatively by ants. Aphis varians and A. helianthi were affected by tending, but A. salicariae was not affected. The responses of both A. varians and A. helianthi to tending were density dependent; i.e., small populations that were untended were more likely to decrease than tended populations, but large populations that were tended were either more likely to decrease than untended populations or equivalent to them. Possible reasons for this density-dependent effect are discussed, and its implications for the stability of the mutualism between aphids and ants are considered. Different species of ants had different effects. Populations of A. varians that were tended by Formica neorufibarbis or Tapinoma sessile performed no differently than untended populations, but low-density populations that were tended by F. cinerea or F. fusca were less likely to decline than untended populations.

scholarly journals Modeling Changes in the In-Migration Patterns of Northern Saskatchewan Communities : a Log-Linear Approach

2005 ◽  
Vol 30 (79) ◽  
pp. 53-67
Author(s):  
G. Tomas Murauskas ◽  
Milford B. Green ◽  
Robert M. Bone
Keyword(s):  
Spatial Interaction ◽  
Contingency Table Analysis ◽  
Linear Approach ◽  
Northern Saskatchewan ◽  
Frontier Region ◽  
Table Analysis ◽  
Interaction Modeling ◽  
Multidimensional Contingency Table ◽  
Log Linear ◽  
Surrogate Measures

This paper examines changes in the historical pattern of in-migration to small frontier communities in northern Saskatchewan in three time periods: 1927-1960, 1961-1970 and 1971-1976. The problems associated with spatial interaction modeling in a developing or frontier region are noted, particularly the low volume of in-migration and the inappropriateness of mass terms as surrogate measures of nodal attractiveness and propulsiveness. As an alternative, a log-linear approach is adopted, whereby multidimensional contingency-table analysis of categorical data reveals structural components in the spatial-interaction process. Initial results indicate that the gender of the migrant has no effect on the propensity to migrate and that spatial patterns of in-migration have not changed over time.

Courtship Sequences and Ethological Isolation in Two Species of Sunfish (Lepomis Spp) and Their Hybrids

Behaviour ◽  
1984 ◽  
Vol 91 (1-3) ◽  
pp. 93-114 ◽  
Author(s):  
Susan E. Clarke ◽  
Patrick W. Colgan ◽  
Nigel P. Lester
Keyword(s):  
Lepomis Gibbosus ◽  
Contingency Table Analysis ◽  
Chi Square ◽  
Naturally Occurring ◽  
Table Analysis ◽  
Spawning Behaviour ◽  
Multidimensional Contingency Table ◽  
Ethological Isolation ◽  
Behavioural Repertoire

AbstractThe role of courtship behaviour in ethological isolation was studied by analysing courtship sequences between different crosses of pumpkinseed (Lepomis gibbosus), bluegill (L. macrochirus), and their hybrid sunfish. Crosses were established in large laboratory tanks, under an artificially advanced photoperiod and temperature regime, and in outside pools. Male-female interactions were filmed and videotaped. In the field, underwater films of naturally occurring courtship and spawning were taken. A behavioural repertoire was described and the data converted to pairs of male and female acts (dyads). Two contexts were distinguished (spawn and nonspawn) depending on whether courtship led to spawning or not. Several methods of analysis were used. Multidimensional contingency table analysis with factors of preceding act, following act, and cross, enabled examination of the dependence of the response of any individual (sex or species) upon the species of partner. Multidimensional Scaling of the crosses, based on a chi-square measure of overall dissimilarity for each context, revealed the relative proximities among the different interspecific and hybrid crosses and the parentals. The results generally agreed well with those produced by a clustering technique. The conclusions are: (1) The differences between the courtship and spawning behaviour of the parentals are evidence for a behavioural isolating mechanism. (2) Interspecific and hybrid crosses tend to be intermediate to parentals. (3) Courting and spawning behaviour is different in the laboratory and field environments. (4) Hybrids likely originate from crosses of male bluegills and female pumpkinseeds.

scholarly journals Comparative visual ecophysiology of mid-Atlantic temperate reef fishes

Biology Open ◽  
2013 ◽  
Vol 2 (12) ◽  
pp. 1371-1381 ◽  
Author(s):  
A. Z. Horodysky ◽  
R. W. Brill ◽  
K. C. Crawford ◽  
E. S. Seagroves ◽  
A. K. Johnson
Keyword(s):  
Reef Fishes ◽  
Temperate Reef
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