Biodiversity and Interactions on the Intertidal Rocky Shores of Argentina (South-West Atlantic)

Palomo, María Gabriela; Bagur, María; Calla, Sofia; Dalton, María Cecilia; Soria, Sabrina A.; Hawkins, Stephen J.

doi:10.1017/9781108235792.008

Cited by 9 publications

(10 citation statements)

References 129 publications

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“…Following in the footsteps of Paine and Connell, much excellent work has been done since the 1970s on both coasts of North America, by Dayton, Menge, Lubchenco, Gaines, Vadas, Bertness and many others (for recent overviews see Dudgeon & Petraitis, 2019; Fenberg & Menge, 2019). This has in turn influenced work in Chile (Broitman et al ., 2001; Aguilera & Navarrete, 2007, 2012; Aguilera et al ., 2013, 2019 a ) and Argentina (Bertness et al ., 2006; Silliman et al ., 2011; Palomo et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Rocky shores as tractable test systems for experimental ecology

et al. 2020

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Rocky shore ecology has been studied for a long time, starting with qualitative descriptions and becoming more quantitative and experimental over time. Some of the earliest manipulative experimental ecological studies were undertaken on rocky shores. Many, over time, have made considerable contributions to ecological theory, especially highlighting the importance of biological interactions at the community level. The suitability of rocky shores as convenient test systems for ecological experimentation is outlined. Here we consider contributions from rocky shores to the emerging concepts of supply-side ecology, the roles of competition, predation and grazing, disturbance and succession and positive interactions in structuring communities along environmental gradients. We then address alternative stable states, relationships between biodiversity and ecosystem functioning, and bottom-up and top-down control of ecosystems. We briefly consider the feedback and synergies between ecological concepts and experimental work on rocky shores, whilst still emphasizing the traditional values of marine natural history upheld in JMBA since its first publication. The importance of rigorous experimental designs championed by Underwood and co-workers is emphasized. Recent progress taking advantage of new technologies and emerging approaches is considered. We illustrate how experimental studies have shown the importance of biological interactions in modulating species and assemblage-level responses to climate change and informed conservation and management of coastal ecosystems.

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Section: Introductionmentioning

confidence: 99%

Rocky shores as tractable test systems for experimental ecology

et al. 2020

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“…Overall, a growing number of studies are documenting rocky intertidal biogeographic patterns and the underlying drivers across the globe. Examples include those done on the NE (Blanchette et al, 2008;Fenberg et al, 2015), SE (Broitman et al, 2001;Ibanez-Erquiaga et al, 2018), SW (Poloczanska et al, 2011;Schiel et al, 2019), and NW (Ishida et al, 2021;Hu and Dong, 2022) Pacific coasts, the Indian Ocean coast (Tsang et al, 2012), the Arctic (Thyrring et al, 2021) and Antarctic (Griffiths and Waller, 2016) coasts, and the NE (Hawkins et al, 2019;Pereira et al, 2022), SE (Bustamante et al, 1997;Hill and McQuaid, 2008), SW (Palomo et al, 2019;Veĺez-Rubio et al, 2021), and NW (Adey and Hayek, 2005) Atlantic coasts. This list of studies is naturally not exhaustive, as related studies are cited in those articles.…”

Section: Introductionmentioning

confidence: 99%

Biogeography of algae and invertebrates from wave-exposed rocky intertidal habitats along the Atlantic coast of Nova Scotia (Canada): Latitudinal and interannual patterns and possible underlying drivers

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Freeman²,

Ellrich³

et al. 2022

Front. Mar. Sci.

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Biogeographic studies aim to understand species distributions and are becoming increasingly relevant to establish baselines to monitor ecological change. The NW Atlantic coast hosts a cold-temperate biota, although knowledge about its biogeography is patchy. This study documents for the first time biogeographic variation at mid-to-high intertidal elevations in wave-exposed rocky intertidal habitats along the open Atlantic coast of Nova Scotia (Canada), a hydrographically distinct subregion of this cold-temperate region. For this goal, we measured the summer abundance of algae and invertebrates at the same nine locations over four consecutive years (2014 to 2017) spanning 415 km of coastline, which allowed us to examine latitudinal and interannual patterns. In addition, we looked for mensurative evidence on possible drivers underlying these patterns, focusing on sea surface temperature, daily maximum and minimum temperature (which often happen at low tides at thus differ from sea surface temperature), pelagic food supply for intertidal filter-feeders (phytoplankton abundance and particulate organic carbon), drift sea ice during the cold season (which can cause intertidal disturbance), and species associations. Our field surveys revealed that northern locations can be severely disturbed by ice scour when drift ice is abundant and, while biological recolonization occurs over the years, it differs in pace among locations. Southern locations, instead, did not experience ice scour during our study and, thus, generally exhibited a higher species richness and abundance than northern locations. Multivariate analyses indicated that the aforementioned expressions of temperature and pelagic food supply explained together 32–55% of the variation in alongshore biogeographic pattern, depending on the year. Species association analyses suggest that algal foundation species (generally more abundant at southern locations) contribute to increase location-wise species richness. Mensurative evidence for bottom-up forcing in seaweed–herbivore and filter-feeder–predator systems differed greatly among years. Overall, in addition to its inherent value to advance NW Atlantic intertidal biogeography, our species distribution database should be valuable to assess ecological change decades into the future as climate change and other anthropogenic influences unfold.

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“…The rocky intertidal communities, modeled by the interaction between biotic and abiotic pressures (Silliman et al, 2011;Menge & Branch, 2001;Bertness et al, 2006;Silliman et al, 2011;Rechimont et al, 2013), undergo a gradient of physical factors between marine to terrestrial conditions (Palomo et al, 2019) determined by the height of the tides (Denny & Wethey, 2001).…”

Section: Introductionmentioning

confidence: 99%