Benthic community composition across gradients of intertidal elevation, wave exposure, and ice scour in Atlantic Canada

Heaven, Christine; Scrosati, Ricardo A.

doi:10.3354/meps07655

Cited by 52 publications

(43 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This confirms that A. improvisus is well adapted for survival in the highly hydrodynamic coastal rock belt of the Baltic Sea and is one of the dominant species in brackish communities. Similar observations have been made for another barnacle species from the Canadian coast, suggesting (2016) 765:297-315 309 that barnacles are better adapted to survive harsh winter ice scour than other species (Heaven & Scrosati, 2008). The lack of adult individuals of Mytilus species indicates that some factors (e.g.…”

Section: Discussionsupporting

confidence: 65%

“…Intensified coastal disturbance is associated with tidal basins, particularly where factors such as increased wave action, sea level changes or, in some areas, winter ice formation are observed (Barnes & Arnold, 1999;Araujo et al, 2012). Assemblages of marine organisms in these areas are more susceptible to difficult conditions resulting from increased sedimentation, overturning or scouring (Therriault & Kolasa, 2000;Heaven & Scrosati, 2008). Populations at the boundary of their occurrence, for example those inhabiting the seashore, are typically smaller (Raffaelli & Hawkins, 1996;Guo et al, 2005) and are characterized by a lower abundance compared with populations located deeper in the sea (Sagarin et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spatial pattern of hydrolittoral rock encrusting assemblages along the salinity gradient of the Baltic Sea

Grabowska

Kukliński

2015

Hydrobiologia

View full text Add to dashboard Cite

This study compared the diversity parameters and structures of encrusting assemblages in two habitats situated at two levels of shallow rocky shore: hydrolittoral and littoral along the Baltic Sea system. We investigated the variability and level of distinctiveness of the hydrolittoral encrusting fauna based on species biodiversity and distribution, and compared these features with those of communities inhabiting the adjacent shallow littoral zone (3-m depth). Structural similarities and differences between the encrusting assemblages from adjacent hydrolittoral and littoral zones were studied within 14 locations distributed along the northern coastline of the Baltic Sea. Multivariate analysis indicates that salinity had the greatest influence on the structure of the investigated assemblages. Most of the observed hydrolittoral assemblages contained the same species as the littoral zone. This result indicated a shared common species pool with similar large-scale patterns of species distributions with some variability in the dominating species between zones. The similarity between species composition of the hydrolittoral and littoral assemblages decreased with increase of salinity. Additionally, with higher species richness and the occurrence of marine specialists adapted to hydrolittoral conditions, the role of the rock size in the frequency of species occurrence and assemblage diversity was less significant.

show abstract

Section: Discussionsupporting

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Spatial pattern of hydrolittoral rock encrusting assemblages along the salinity gradient of the Baltic Sea

Grabowska

Kukliński

2015

Hydrobiologia

View full text Add to dashboard Cite

show abstract

“…There are also alternative explanations for the observed decline in abundance. For example, intertidal ice scour is more prevalent at higher latitudes, hereby removing more spat compared to southern locations where sea ice is less pronounced (Heaven & Scrosati 2008). The space-for-time approach used in this study is suitable to infer temporal changes from spatial patterns (Blois et al 2013).…”

Section: Latitudinal Changes In Population Dynamics Of Mytilus In Grementioning

confidence: 99%

Rising air temperatures will increase intertidal mussel abundance in the Arctic

Thyrring¹,

Blicher²,

Sørensen³

et al. 2017

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

“…Intertidal recruitment rates are barely known for northern Nova Scotia. For barnacles (characteristic species on these shores; Heaven and Scrosati 2008), recruitment is lower than in New England (Menge 1991, MacPherson et al 2008, S. Cole, R. Scrosati and J. Tam pers. comm.).…”

mentioning

confidence: 99%

Species richness and diversity in different functional groups across environmental stress gradients: a model for marine rocky shores

Scrosati¹,

Genne²,

Heaven³

et al. 2011

Ecography

View full text Add to dashboard Cite

We present a model predicting how the species richness and diversity within benthic functional groups should vary across the full environmental stress gradient across which a regional biota from marine rocky shores can occur. Built upon previous models, our model makes predictions for sessile species (macroalgae and filter feeders), herbivores, and carnivores. We tested some of its predictions by surveying vertical (intertidal elevation) and horizontal (wave exposure and ice scour) stress gradients in northern Nova Scotia, Canada. Because of harsh winter conditions, these coasts only depict approximately intermediate‐to‐high yearly levels of stress that the cold‐temperate, rocky intertidal biota from the northwestern Atlantic can experience. The observed trends matched predictions for sessile species in 75% of the studied gradients, and showed a moderate agreement for herbivores and carnivores only when they were combined as mobile consumers. Agreement meant that both richness and diversity increased from the most stressful to the most benign habitats that can be found in northern Nova Scotia. Also as predicted, sessile species generally showed a faster rate of increase in richness than mobile consumers. Our model also predicted a higher overall richness for sessile species than for mobile consumers, which was true by a factor of 3. Therefore, our model may constitute a useful tool to understanding community composition as a function of abiotic stress, which may in turn facilitate studies on community functioning. Model predictions for lower stress ranges could be tested on more southern shores where the same regional biota occurs.

show abstract

Benthic community composition across gradients of intertidal elevation, wave exposure, and ice scour in Atlantic Canada

Cited by 52 publications

References 50 publications

Spatial pattern of hydrolittoral rock encrusting assemblages along the salinity gradient of the Baltic Sea

Spatial pattern of hydrolittoral rock encrusting assemblages along the salinity gradient of the Baltic Sea

Rising air temperatures will increase intertidal mussel abundance in the Arctic

Species richness and diversity in different functional groups across environmental stress gradients: a model for marine rocky shores

Contact Info

Product

Resources

About