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Pacific Conservation Biology Pacific Conservation Biology Society
A journal dedicated to conservation and wildlife management in the Pacific region.

Volume 29 Number 4 2023


Work-related poor mental health is a common but largely unrecognised phenomenon among conservation biologists and ecologists. Among a suite of possible solutions, one way of managing poor mental health is for scientists to reposition their experiences within an historical framework that sees them as part of a long tradition of struggle to protect the natural environment by people from many walks of life. A serviceable guide to the recommended approach is Pablo Casals’ declaration ‘The situation is hopeless. We must take the next step’.

PC21065Learning from successful long-term citizen science programs

Birgita Hansen 0000-0003-3608-7622 and Patrick Bonney
pp. 292-299

Long-term citizen science programs offer important insights for new and emerging projects by virtue of their persistence, reputation and impact. Developing a clear vision, effective knowledge management, relationship building, meaningful volunteer engagement, and adapting to change will help programs measure environmental change while building motivated, informed and connected communities.

PC22001Build it and some may come: early stage habitat restoration may initially favour herbivore return

Sophie Cross 0000-0002-1126-6811, Sean Tomlinson 0000-0003-0864-5391, Michael Craig and Philip Bateman 0000-0002-3036-5479
pp. 300-311

Animals are critical to healthy and functional ecosystems, yet are broadly overlooked in assessments of habitat restoration success. We use camera trapping to highlight that early stage habitat restoration may facilitate an overabundance of some animal groups, e.g. herbivores, which may be detrimental to restoration efforts. Assessing the responses of animals to habitat restoration is critical to determining whether restoration is effectively returning functional and self-sustaining animal communities.

PC22005Avian community changes following drought-induced canopy collapse in a Mediterranean-type forest

Sean Smithies, Patricia A. Fleming 0000-0002-0626-3851, Philip W. Bateman 0000-0002-3036-5479, Giles E. St. J. Hardy and Shannon J. Dundas 0000-0002-3831-8773
pp. 312-324

We investigated the effects of a large-scale drought-induced canopy collapse on bird community assemblages. Overall, the pooled (±s.d.) reporting rates for drought-affected plots (13.84 ± 0.60 individuals/survey) were significantly less than the reporting rates for healthy plots (34.44 ± 1.03 individuals/survey). Foliage-searching birds were the most abundant guild across all plots and were reported less often in drought-affected plots. Overall, the drought-affected forest provides less favourable habitat for bird assemblages compared to healthy forest.

PC21070Continental islands off the Pacific Coast of the Mexican state of Jalisco hold complementary plant conservation value

Victor Hugo Soria-González, Julieta Benítez-Malvido, Ireri Suazo-Ortuño, Juan Martínez Cruz and Héctor Hugo Siliceo-Cantero 0000-0002-8125-9203
pp. 325-339

Three protected islands with the same geological origin on the Pacific Coast, in Jalisco, Mexico, differ in species richness and habitat structure, sharing only 7 of 49 woody and cacti species. Observations suggest that human disturbances are threatening the maintenance of their diversity. The islands need an effective biodiversity monitoring and conservation program because they represent unique habitats.

PC21078Assessing freshwater fish biodiversity of Kumbe River, Papua (Indonesia) through environmental DNA metabarcoding

Arif Wibowo 0000-0001-7172-1962, Kurniawan Kurniawan, Dwi Atminarso, Tri Heru Prihadi, Lee J. Baumgartner, Meaghan L. Rourke, Satoshi Nagai, Nicolas Hubert and Anti Vasemagi
pp. 340-350

Environmental DNA (eDNA) metabarcoding shows great promise as a novel tool for fish biomonitoring programs in tropical freshwater habitats. It is sensitive, non-invasive and cost-effective. However, our results highlight that eDNA metabarcoding cannot be routinely applied without further research into sampling design, marker choice, seasonal data, and an improved reference database to reduce false negative detections. Despite this, eDNA metabarcoding will play an important role in the future characterisation of the fish community in tropical river systems.


This contribution documents a breeding range extension of the Indo-Pacific Little Tern Sternula albifrons sinensis in Western Australia, following a pattern documented in other tern and noddy species. It also discusses the overlap and relationship with the closely related Australian Fairy Tern Sternula nereis nereis and relevant conservation implications.

PC21072Global extinction risk reassessment of the threatened tree Vatica venulosa (Dipterocarpaceae)

Enggal Primananda 0000-0002-1197-3815, Dipta S. Rinandio 0000-0001-8938-9574, Julisasi T. Hadiah 0000-0002-5478-8118 and Iyan Robiansyah 0000-0002-0503-458X
pp. 357-363

This study aims to update the global conservation status of Vatica venulosa using all the occurrence records across the species’ natural distribution. Reduction analysis showed that the species experienced 30% population reduction over the past three generations. We proposed the category Vulnerable (VU A4c) as the new global conservation status of V. venulosa.


Yellow flag iris (Iris pseudacorus L.) is a highly invasive aquatic plant that is primarily known to occupy freshwater habitats. We report the observation of multiple patches of reproductively mature I. pseudacorus persisting in coastal habitats devoid of consistent sources of freshwater.

Committee on Publication Ethics

Ivor Beatty Award

R. Russell & M. Paterson have been awarded the Ivor Beatty Award for 2022.

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