Breeding Biology of the Endangered Rota Bridled White-Eye

Amidon, Frederick A.; Haas, Carola A.; Morton, John M.

doi:10.1676/04-037

Cited by 7 publications

(9 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lusk and Taisacan (1997) reported a nesting season of at least March to June. In combination with our finding of nests between March and July and one instance of nest building in September, these observations suggest the Rota White-eye nesting season may extend as long as 10 months from December to September, and breeding may even occur yearround (Amidon et al 2004).…”

Section: Discussionsupporting

confidence: 77%

“…Sample sizes are small, but nest predation does not appear to be a significant factor affecting the reproductive success of Rota Whiteeyes in either the current study or in Amidon et al (2004). The only species that was positively identified as a nest predator was the Mariana Crow, which is also endangered (USDI 1984); thus, control of this species is not possible.…”

Section: Discussionmentioning

confidence: 56%

“…In comparison, seven of 10 nests monitored by Amidon et al (2004) were successful in producing at least one fledgling; one was destroyed by a typhoon, one was depredated, and one was either depredated or abandoned, possibly due to human interference.…”

Section: Discussionmentioning

confidence: 98%

“…Amidon et al (2004) found Rota White-eye nests in four tree species (Elaeocarpus joga, Hernandia labyrinthica, Merrilliodendron megacarpum, and the introduced Acacia con-SHORT COMMUNICATIONS fusa), but their study included searches in regions that were not dominated by Merrilliodendron megacarpum. Amidon et al (2004) observed active nests in December, March, July, and August, and reported indirect evidence of nesting in January, April, and June. Lusk and Taisacan (1997) reported a nesting season of at least March to June.…”

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Nest Success and Nest Predation of the Endangered Rota White-eye (Zosterops rotensis)

Berry¹,

Taisacan²

2008

The Wilson Journal of Ornithology

View full text Add to dashboard Cite

Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 56%

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Nest Success and Nest Predation of the Endangered Rota White-eye (Zosterops rotensis)

Berry¹,

Taisacan²

2008

The Wilson Journal of Ornithology

View full text Add to dashboard Cite

“…obs.). The Rota White-eye is currently restricted to less than 300 ha of mature limestone forest above elevations of 150 m (Amidon 2000, 2004, Fancy and Snetsinger 2001). Nearby mature limestone forest areas exist that are not presently occupied by the Rota White-eye, though the reasons these areas are currently unoccupied are unknown (Amidon 2000, 2004, Fancy and Snetsinger 2001).…”

Section: Introductionmentioning

confidence: 99%

Effects of foliage invertebrate availability and forest structure on the abundance of the critically endangered Rota White-eye Zosterops rotensis in Rota, Mariana Islands

Zarones

Colón

et al. 2013

Bird Conservation International

View full text Add to dashboard Cite

SummaryThe Rota White-eye, Zosterops rotensis, is a critically endangered species endemic to the island of Rota, in the Mariana Islands, western Micronesia. There has been a dramatic decline in both its population size and range over the past few decades. The population, estimated at approximately 1,000 individuals in 1999, is found exclusively in 300 ha of mature limestone forest, though nearby areas of mature limestone forest remain unoccupied. We compared the bird community, vegetation characteristics and foliage-invertebrate density in forest plot pairs with known high and low densities of Rota White-eyes. Discriminant function analysis suggested that certain vegetation characteristics were best at predicting whether a plot was high-density or low-density. High-density plots had more stems with 20–50 cm DBH, more foliage intercepts at 3–9 m, more epiphytes, greater total canopy cover and fewer overall plant species. This information is essential for the protection of the current habitat of the Rota White-eye and for future efforts in the protection and management of this species.

show abstract

Predation thresholds for reintroduction of native avifauna following suppression of invasive Brown Treesnakes on Guam

McElderry

Paxton

Nguyen

et al. 2022

Ecological Applications

View full text Add to dashboard Cite

The brown treesnake (BTS) (Boiga irregularis) invasion on Guåhan (in English, Guam) led to the extirpation of nearly all native forest birds. In recent years, methods have been developed to reduce BTS abundance on a landscape scale. To help assess the prospects for the successful reintroduction of native birds to Guåhan following BTS suppression, we modeled bird population persistence based on their life history characteristics and relative sensitivity to BTS predation. We constructed individual-based models and simulated BTS predation in hypothetical founding populations for each of seven candidate bird species. We represented BTS predation risk in two steps: risk of being encountered and risk of mortality if encountered. We link encounter risk from the bird's perspective to snake contact rates at camera traps with live animal lures, the most direct practical means of estimating BTS predation risk. Our simulations support the well-documented fact that Guåhan's birds cannot persist with an uncontrolled population of BTS but do indicate that bird persistence in Guåhan's forests is possible with suppression short of total eradication. We estimate threshold BTS contact rates would need to be below 0.0002-0.0006 snake contacts per bird per night for these birds to persist on the landscape, which translates to an annual encounter probability of 0.07-0.20. We simulated the effects of snake-proof nest boxes for Sihek (Todiramphus cinnamominus) and Såli (Aplonis opaca), but the benefits were small relative to the overall variation in contact rate thresholds among species. This variation among focal bird species in sustainable predation levels can be used to prioritize species for reintroduction in a BTS-suppressed landscape, but variation among these species is narrow relative to the required reduction from current BTS levels, which may be four orders of magnitude higher (>0.18). Our modeling indicates that the required predation thresholds may need to be lower than have yet been demonstrated with current BTS

show abstract

Breeding Biology of the Endangered Rota Bridled White-Eye

Cited by 7 publications

References 16 publications

Nest Success and Nest Predation of the Endangered Rota White-eye (Zosterops rotensis)

Nest Success and Nest Predation of the Endangered Rota White-eye (Zosterops rotensis)

Effects of foliage invertebrate availability and forest structure on the abundance of the critically endangered Rota White-eye Zosterops rotensis in Rota, Mariana Islands

Predation thresholds for reintroduction of native avifauna following suppression of invasive Brown Treesnakes on Guam

Contact Info

Product

Resources

About