Solomon Islands Forest Life: information on biology & management of forest resources

SIFL_CoverSolomon Islands Forest Life is a terrestrial ecology and conservation textbook for secondary school students in the Solomon Islands. The book gives an overview of the terrestrial environments of Solomon Islands, their ecology, important species, and some of the key threats they face.

Chapters are:

  • Introduction to Environments
  • Flora (algae, bryophytes, ferns, gymnosperms, flowering plants)
  • Fungi
  • Fauna (invertebrates, freshwater fish, amphibians, reptiles, mammals, birds)
  • Critical Issues (forest resource management, deforestation, plastic and pollution, invasive species, climate change)
  • Guide to common forest life of Solomon Islands (species descriptions)
  • Glossary

All sections are lavishly illustrated with high quality photographs and graphics and can be downloaded and distributed freely from the following links:

Solomon Islands Forest Life – low resolution file download (17MB)

Solomon Islands Forest Life – high resolution file download (123MB)

The Solomon Islands are one of the most biologically rich archipelagos on earth. Huge proportions of the animals and plants found there are endemic, meaning they are found nowhere else on earth. These species are closely linked to the culture, livelihoods and well-being of people.

Commercial logging, mining and a fast rate of population growth threaten the forests of Solomon Islands and are placing increasing pressure on natural resources. This book aims to complement the already deep understanding of the terrestrial environment by Solomon Islanders, allowing them to learn more and assist them in understanding how to manage new threats.

SIML_coverSolomon Islands Forest Life and its companion Solomon Islands Marine Life, together provide a unique resource on the extraordinary natural world of the Solomon Islands.

Solomon Islands Marine Life was published in 2013 by Simon Albert, Ian Tibbetts and James Udy.

Chapters are:

  • Introduction to marine life
  • Marine plants (seagrass, marine algae, mangroves)
  • Marine invertebrates
  • Marine vertebrates (fish, turtles, sharks)
  • Critical issues (water quality, climate changes, marine resource management)
  • Guide to  marine life of Solomon Islands

It can also  be downloaded and distributed freely from the following links:

Solomon Islands Marine Life – low resolution file download (13.5MB)

Solomon Islands Marine Life – high resolution file download (194MB)

Please consider donating via this link to support printing and free distribution of Solomon Islands Forest Life to Solomon Islands schools. The cost of printing one copy is AUD$15.

Publication of this book would not have been possible without the contributions of Simon Albert , David Boseto, Tammy Davies , John Fasi, Corzzierrah Posala, Jonathan Richmond, John Schenk, Brian Weeks and Claudia Blomberg (review).

Tyrone Lavery, Patrick Pikacha and Diana Fisher (The University of Queensland, Brisbane, ISBN: 978-1-74272-157-6)

The Critical Ecosystem Partnership Fund is a joint initiative of l’Agence Française de Développement, Conservation International, the European Union, the Global Environment Facility, the Government of Japan, the MacArthur Foundation and the World Bank. A fundamental goal is to ensure civil society is engaged in biodiversity conservation.

Extinction of another Australian mammal? Bramble Cay Melomys (Melomys rubicola)

The Bramble Cay Melomys (Melomys rubicola) had one of the most unusual and precarious distributions of all Australian mammals. As far as we know, the only place it occurred was  a tiny 4-5 hectare coral cay in the eastern Torres Strait, off the tip of northern Australia.

bramble copyJust how the species became isolated on such a remote coral cay remains a mystery. Given its close relatedness to Australian melomys, it’s been suggested it is a result of stranding by rising sea levels as ice melted following the Last Glacial Maximum. Surveys of adjacent inhabited Torres Strait islands have failed to detect Bramble Cay melomys, instead finding that the grassland melomys (Melomys burtoni) is a much more widespread species in the region.

Bramblecay

Bramble Cay, the only known location for Melomys rubicola

The remoteness of the cay, has meant that research targeted toward Bramble Cay melomys has been very limited. However, the few surveys and anecdotal reports that could be gathered suggested it was a species in decline. In an effort to prevent its loss from the cay, a recovery plan was prepared in 2008. The main recommendations of this plan were:

  1. Establish a Bramble Cay melomys monitoring program;
  2. Clarify the extent of and manage threats to the Bramble Cay melomys;
  3. Clarify taxonomy of Bramble Cay melomys in relation to PNG species;
  4. Facilitate community participation and education in Bramble Cay melomys recovery; and
  5. Manage the recovery program.

As far as we can tell, none of these recommendations were acted upon. It was not until 2011 that our research group (care of assistance from TSRA) was able to visit the cay specifically to provide an update on the status of Melomys rubicola. By this time it seems it was too late. The survey then, and on another two subsequent visits to the cay have failed to detect any sign of the melomys.

Given the small size of the cay and lack of vegetation, from this we can confidently affirm that Bramble Cay melomys is extinct from the only known part of its distribution.It appears that the extinction was caused by a combination of rising sea levels and storm surge events. Extinction of Bramble Cay melomys may therefore be the first mammal extinction caused by climate change.

In the Torres Strait, sea levels (measured at Goods Island) have been steadily rising over the past 15 years (Figure A below).

 

Screen Shot 2016-06-03 at 12.06.06 PMIn 2009 the rising seas were punctuated by a significant storm surge event that pushed sea levels up to 0.94 metres above predicted levels (Figure B).

Screen Shot 2016-06-03 at 12.06.27 PM.pngInundation of the cay by high sea levels likely had dire consequences for cay’s vegetation, and in turn the melomys. Comparisons of historical photographs show that there has been significant decline in the extent and quality of vegetation on the island – the melomys’ only food source. Debris found spread across the island provide evidence this vegetation decline has been the result of inundation by salt water.

There will be many that will argue the investment required to save this species from its apparent extinction is better spent on other species. Melomys rubicola was restricted to a single cay and was therefore unlikely to have major importance for the functioning of ecosystems or the survival of other species. However, given our country already holds the world’s worst extinction record for mammals – do we really have the right to pick and choose which of the remaining species we conserve?