Research and management priorities for Hawaiian forest birds

Paxton, Eben H.; Laut, Megan; Vetter, John P.; Kendall, Steve

doi:10.1650/condor-18-25.1

Cited by 35 publications

(31 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Indeed, Hawaii is home to 66 endemic avian species, of which 37.9% are extinct; 53.0% are listed as vulnerable, endangered, or critically endangered; 4.5% are near threatened; and only the remaining 4.5% are listed as species of least concern (under IUCN Red List criteria; IUCN 2018). Hawaiian species endangerment has been attributed to a range of anthropogenic influences, including the loss or modification of habitat, introduced predators and plants, disease, altered hydrology, and hybridization with nonnative species (U.S. Fish and Wildlife Service [USFWS] 2011, Paxton et al 2018). Among Hawaii's endangered waterbirds, however, positive species-level population trends have been observed over the past several decades, based on count data from the period 1986-2015 (State of Hawaii Division of Forestry and Wildlife [DOFAW] 1980-2015, Reed et al 2011, Underwood et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Interisland genetic structure of two endangered Hawaiian waterbirds: The Hawaiian Coot and Hawaiian Gallinule

2018

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Interisland genetic structure of two endangered Hawaiian waterbirds: The Hawaiian Coot and Hawaiian Gallinule

2018

View full text Add to dashboard Cite

show abstract

“…Another introduced disease affecting native species is avian malaria, a mosquito-borne disease associated with ongoing population declines and increased extinction risks in native Hawaiian birds (Atkinson et al 2000). Novel vector control methods that target the primary vector of avian malaria in Hawaii, the southern house mosquito (Culex quinquefasciatus), hold promise as a means to reduce avian malaria transmission to susceptible native birds (Paxton et al 2018). Non-genetically modified approaches are currently being pursued, including the release of male mosquitoes artificially infected with a naturally occurring Wolbachia strain that impedes reproduction and suppresses mosquito populations (Atyame et al 2015).…”

Section: Shortcomingsmentioning

confidence: 99%

“…Other vector control methods are being explored that use gene drive techniques to spread genome edits through the vector population that reduce disease transmission or suppress mosquito populations (Alphey 2014). Challenges with both genetically and non-genetically modified vector control include increasing mass mosquito rearing capacity, deploying vectors across topographically complex landscapes, and developing robust monitoring tools (Paxton et al 2018). In all cases, implementing an effective community engagement strategy is paramount.…”

Section: Shortcomingsmentioning

confidence: 99%

Hawaii as a Microcosm: Advancing the Science and Practice of Managing Introduced and Invasive Species

et al. 2020

View full text Add to dashboard Cite

Invasive species are a leading driver of global change, with consequences for biodiversity and society. Because of extraordinary rates of endemism, introduction, and extinction, Hawaii offers a rich platform for exploring the cross-disciplinary challenges of managing invasive species in a dynamic world. We highlight key successes and shortcomings to share lessons learned and inspire innovation and action in and beyond the archipelago. We then discuss thematic challenges and opportunities of broad relevance to invaded ecosystems and human communities. Important research needs and possible actions include eradicating mammals from mainland island sanctuaries, assessing hidden threats from poorly known introduced species, harnessing genomic tools to eradicate disease vectors, structured decision-making to achieve common objectives among diverse stakeholders, and enhancing capacity through nontraditional funding streams and progressive legislation. By shining a spotlight on invasive species at the front lines in Hawaii, we hope to catalyze strategic research and practice to help inform scientists and policymakers.

show abstract

“…Throughout the Hawaiian archipelago, forest bird populations have dramatically declined largely due to anthropogenic habitat loss and degradation, introduced mammalian predators, and foreign disease (avian smallpox and avian malaria; Reed et al, 2012). Nearly 100 native forest bird species in Hawaiʻi became extinct after the arrival of humans; today, only 21 species remain, 12 of which are listed as endangered (Paxton et al, 2018). The 'Alalā-perhaps the most iconic representative of this crisis-is the last corvid remaining on the Hawaiian Islands, which historically was home to at least 5 crow species (James and Olson, 1991).…”

Section: Introductionmentioning

confidence: 99%

Inter-aviary distance and visual access influence conservation breeding outcomes in a territorial, endangered bird

Flanagan

Rutz

Farabaugh

et al. 2020

Biological Conservation

View full text Add to dashboard Cite

Inter-aviary distance and visual access influence conservation breeding outcomes in a territorial, endangered bird Keywords Animal husbandry; conservation breeding; endangered birds; social density; enclosure design; Hawaiian crow Highlights • Reproductive success can be adversely impacted by high social density • The design and spatial configuration of enclosures impacts reproductive success • Blocking visual access to conspecifics improves reproductive success • Enclosure designs that minimize stress can help to improve reproductive success Abstract Species extinctions are becoming a global crisis, affecting biodiversity and ecosystem services, with island populations being particularly vulnerable. In response, conservation managers are increasingly turning to ex situ conservation breeding programs to establish assurance populations and provide a source for release and re-establishment of wild populations. The 'Alalā (Hawaiian crow, Corvus hawaiiensis) is a critically endangered and territorial island corvid that became extinct in the wild in 2002, following a severe and prolonged population decline during the late 20 th century. Surviving individuals of the species were brought into captivity to establish an assurance population to serve as a source for reintroduction, which commenced in 2016. We analyzed the extent to which a range of captive housing conditions impact 'Alalā reproductive success, using 19 years of breeding program data. We found that reproductive success was most strongly affected by the distance between aviaries and their closest neighbors and whether breeding pairs had visual access to other adult conspecifics. Pairs located in aviaries that were more spatially isolated and without visual access to conspecifics were more likely to produce fertile eggs than pairs housed in aviaries that were closer to others or those with visual access to other birds. Our results have direct management implications relevant to the design of conservation breeding centers geared towards the recovery of endangered, territorial bird species. Moreover, since suboptimal housing conditions can increase stress levels in captive birds, our findings are also relevant to improving animal welfare for 'Alalā and other species in conservation breeding programs.

show abstract

Research and management priorities for Hawaiian forest birds

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 35 publications

References 36 publications

Interisland genetic structure of two endangered Hawaiian waterbirds: The Hawaiian Coot and Hawaiian Gallinule

Interisland genetic structure of two endangered Hawaiian waterbirds: The Hawaiian Coot and Hawaiian Gallinule

Hawaii as a Microcosm: Advancing the Science and Practice of Managing Introduced and Invasive Species

Inter-aviary distance and visual access influence conservation breeding outcomes in a territorial, endangered bird

Contact Info

Product

Resources

About