The Birds of Sala y Gomez Island, Chile

Vilina, Yerko A.; Gazitua, Francisca J.

doi:10.2307/1522124

Cited by 13 publications

(9 citation statements)

References 3 publications

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“…Most of the faunistic studies from the island refer to marine invertebrates (Rehder 1980;Castilla & Rozbaczylo 1988;Burukovsky 1990;Tabachnick 1990;Coloma et al 2004) and fishes (Parin 1991;Pequeño 2004). There are also records for 14 species of sea birds, with 10 of those nesting on site (Vilina & Gazitua 1999). The first record for a terrestrial arthropod on the island corresponded to Cryptamorpha desjardinsi (Guérin-Méneville, 1844) (Silvanidae, Coleoptera; see Elgueta & Lazo 2013).…”

Section: Introductionmentioning

confidence: 99%

First endemic arachnid from Isla Sala y Gómez (Motu Motiro Hiva), Chile: a new species of tube-dwelling spider (Araneae: Segestriidae)

Giroti

Cotoras

Lazo³

et al. 2020

EJT

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The Isla Sala y Gómez or Motu Motiro Hiva is located 415 km northeast of Rapa Nui (Easter Island) and 3420 km from the coast of northern Chile. It is a small oceanic island (2.5 km2) dominated by volcanic rock with very little vegetal cover. Here, we describe the first endemic arachnid for the island, Ariadna motumotirohiva sp. nov. Females are similar to those of Ariadna perkinsi Simon, 1900 from Hawaiʻi and Ariadna lebronneci Berland, 1933 from the Marquesas in the dorsal dark abdominal pattern, but they differentiate from the latter in the anterior receptaculum, promarginal cheliceral teeth and leg IV macrosetae. A recent survey of the arachnid fauna of Rapa Nui, which included Motu Nui and the rocky shores, did not record the presence of the family Segestriidae, neither has it been found during previous surveys. However, it is not possible to discard the possibility of a local extinction on Rapa Nui and survival on Sala y Gómez. This study suggests other endemic terrestrial arthropods could be present on this very small and remote island.

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Section: Introductionmentioning

confidence: 99%

First endemic arachnid from Isla Sala y Gómez (Motu Motiro Hiva), Chile: a new species of tube-dwelling spider (Araneae: Segestriidae)

Giroti

Cotoras

Lazo³

et al. 2020

EJT

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“…Despite the limitations of archaeological and historical data, the change over time in the diversity of traits on Rapa Nui provides insight into the processes of change that explain current species richness and trait diversity. As suggested by Petchey and Gaston (2006), the diversity of traits is a measure of functional diver- uninhabited islands, like Salas y Gómez (Vilina & Gazitua, 1999), suggests it is likely to be highly sensitive to the presence of humans and alien species. In the current time, the low diversity of nesting seabird species on Rapa Nui itself reflects the high degree of change in the landscape due to human activity and ecological changes (Hunt, 2007;Rull et al, 2016).…”

Section: Discussionmentioning

confidence: 98%

Temporal changes in seabird assemblage structure and trait diversity in the Rapa Nui (Easter Island) multiple‐use marine protected area

Plaza

Serratosa

Gusmao

et al. 2020

Aquatic Conservation

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For Rapa Nui (Easter Island) and its largest islet, Motu Nui, the change of the species assemblage over time was analysed, and a trait‐based approach to evaluate the potential losses in seabird function across the past centuries was applied. At a finer scale, the seasonal changes in seabird species composition in the current seabird assemblage was assessed to better understand the dynamics of the long‐term inferred patterns.For Rapa Nui, the composition of the seabird assemblage between the prehistorical, historical, and current time has changed significantly. The most critical change, probably associated with human colonization, was observed between prehistoric and current times. The current diminished number of nesting seabird species was probably the result of local extirpation without evidence of colonization by new species.For Motu Nui, changes in species composition were also followed by changes in trait structure, which were smaller than observed in Rapa Nui. This is probably due to the presence of a relatively high number of related species (i.e. Procellariids) with high similarities in their foraging behaviour.The nesting seabird assemblages in Rapa Nui and Motu Nui differ in exposure to risk; thus, conservation strategies applied to the islands should be planned on a fine spatial scale. For Rapa Nui, which is an urban wildlife area with several invasive species and a low number of remaining native seabird species, management should focus on fencing and pets control. For Motu Nui, management should instead focus on the establishment of quarantine and other biosecurity tools to avoid both the entry and proliferation of new invasive species.

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“…Two previous studies, from 1985 and 1986 (Harrison & Jehl, ) and from 1997 (Vilina & Gazitua, ), on the seabirds of S&G Island described the nests of the majority of the breeding birds. Neither of those studies, reported plastic in the nests, but abundant AML was observed on the beach in 1997 (Y. Vilina, personal communication).…”

Section: Discussionmentioning

confidence: 99%

Marine protected areas invaded by floating anthropogenic litter: An example from the South Pacific

Luna‐Jorquera

Thiel

Portflitt‐Toro

et al. 2019

Aquatic Conservation

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Oceanic marine protected areas (MPAs) that are close to the litter accumulation zones in the subtropical gyres receive large amounts of plastic litter, both as micro‐ and as macroplastics. The macro‐litter accumulating on the islands in the Easter Island Ecoregion (Rapa Nui and Salas y Gómez) can be traced back to the high seas industrial fishery operating in the South Pacific. Seabirds nesting in the MPAs in the South Pacific are affected by both microplastic ingestion and macroplastic in their nests, but there was no evidence of entangled birds. Conservation of seabirds (and other species) in these oceanic MPAs requires efficient measures to reduce plastic contamination in the ocean. Observations made in the South Pacific coincide with those from other oceanic MPAs, calling for global actions.

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The Birds of Sala y Gomez Island, Chile

Cited by 13 publications

References 3 publications

First endemic arachnid from Isla Sala y Gómez (Motu Motiro Hiva), Chile: a new species of tube-dwelling spider (Araneae: Segestriidae)

First endemic arachnid from Isla Sala y Gómez (Motu Motiro Hiva), Chile: a new species of tube-dwelling spider (Araneae: Segestriidae)

Temporal changes in seabird assemblage structure and trait diversity in the Rapa Nui (Easter Island) multiple‐use marine protected area

Marine protected areas invaded by floating anthropogenic litter: An example from the South Pacific

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