Kelp Geese (Chloephaga hybrida) and Flightless Steamer-Ducks (Tachyeres pteneres) in the Beagle Channel: the importance of islands in providing nesting habitat

Liljesthröm, Marcela; Schiavini, Adrián; Samaniego, Ricardo Andres Saenz; Fasola, Laura; Rey, Andrea Raya

doi:10.1676/13-028.1

Cited by 12 publications

(8 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As with Sooty shearwaters, this could be due to increased tussac cover. In nearby Tierra del Fuego, Kelp geese only nest on islands free of mammalian predators, and are associated with islands with greater bush cover, perhaps because this conceals nests from predators (Liljesthröm et al 2013). In the Falklands, the species does manage to breed in the presence of feral cats Felis catus and Norway rats Rattus norvegicus but possibly at a depressed density.…”

Section: Discussionmentioning

confidence: 99%

Changes and consistencies in marine and coastal bird numbers on Kidney Island (Falkland Islands) over half a century

et al. 2019

View full text Add to dashboard Cite

Detecting change is necessary for effective ecosystem management, yet temporal data on key ecosystem components are lacking for many polar and subpolar regions. For example, although the Falkland Islands hosts internationally important marine and coastal bird populations, few of these were surveyed until the late 20th century. The avifauna of one small island, Kidney Island, was surveyed between 1958 and 1963, however. This typical tussaccovered island has remained free of non-native predators, so changes in its avifauna may reflect variation in the wider marine environment. In order to obtain a rare snapshot of such changes, we re-surveyed Kidney Island's avifauna between 2017 and 2019, counting either individuals, breeding pairs or nest sites of marine and coastal waterbirds. Waterfowl, waders and cormorant populations were broadly stable, but several populations showed profound differences over the six decades between surveys. In particular, Southern Rockhopper penguins Eudyptes chrysocome collapsed from >3000 to 200 pairs, while Sooty Shearwaters Ardenna grisea expanded by two orders of magnitude. Due to its isolation and tight fisheries management, the Falklands marine environment is assumed to be relatively pristine. Our limited results suggest that sufficient changes may nevertheless have occurred in the region's marine ecosystem to have detectable impacts on breeding seabirds.

show abstract

Section: Discussionmentioning

confidence: 99%

Changes and consistencies in marine and coastal bird numbers on Kidney Island (Falkland Islands) over half a century

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Como resultado de la plasticidad trófica y establecimiento del visón en el área, numerosas especies de aves se han visto negativamente afectadas por la nueva presión de depredación. Por ejemplo, el pato vapor no volador (Tachyeres pteneres) y el caiquén (Chloephaga picta) sufren una gran depredación de sus nidos por el visón (Schüttler et al 2009;Liljesthröm et al 2013). Además, los visones depredan sobre aves de bosque (Schüttler et al 2008;Ibarra et al 2009).…”

Section: Paso 1: Investigación Ecológica Y Filosófica De La Especie Iunclassified

Los ojos del árbol: percibiendo, registrando, comprendiendo y contrarrestando las invasiones biológicas en tiempos de rápida homogeneizacion biocultural

et al. 2018

View full text Add to dashboard Cite

“…For example, although Rock Cormorant numbers are declining, Magellanic Penguin populations are increasing (Raya Rey et al 2014). Plus, several waterfowl species, such as the Kelp Goose (Chloephaga hybrida), have become more restricted to small islands and islets in the channel to avoid native and introduced terrestrial predators and other human disturbances that have become greater in the Argentine portion of the BC (Liljesthröm et al 2013). …”

Section: Identification Of Key Elements Of the Beagle Channel As A Comentioning

confidence: 99%

Even at the uttermost ends of the Earth: how seabirds telecouple the Beagle Channel with regional and global processes that affect environmental conservation and social-ecological sustainability

Rey¹,

Pizarro²,

Anderson³

et al. 2017

E&S

View full text Add to dashboard Cite

Kelp Geese (Chloephaga hybrida) and Flightless Steamer-Ducks (Tachyeres pteneres) in the Beagle Channel: the importance of islands in providing nesting habitat

Cited by 12 publications

References 31 publications

Changes and consistencies in marine and coastal bird numbers on Kidney Island (Falkland Islands) over half a century

Changes and consistencies in marine and coastal bird numbers on Kidney Island (Falkland Islands) over half a century

Los ojos del árbol: percibiendo, registrando, comprendiendo y contrarrestando las invasiones biológicas en tiempos de rápida homogeneizacion biocultural

Even at the uttermost ends of the Earth: how seabirds telecouple the Beagle Channel with regional and global processes that affect environmental conservation and social-ecological sustainability

Contact Info

Product

Resources

About