Water resources on Guam—Potential impacts of and adaptive response to climate change

Gingerich, Stephen B.; Johnson, Adam G.; Rosa, Sarah N.; Marineau, Mathieu D.; Wright, Scott A.; Hay, Lauren; Widlansky, M. J.; Jenson, John W.; Wong, C. I.; Banner, Jay L.; Finucane, Melissa L.; Keener, V. W.

doi:10.3133/sir20195095

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…The climate of Guam is tropical marine. The collection dates were in February and March, 2022, which is the dry season of the island with one-third of annual rainfall of 84-116 inches [6]. The temperature range during collection was 76-87 • F. The collection sites were spread over the entire island, which encompasses five distinct soil orders.…”

Section: Discussionmentioning

confidence: 99%

Illumina 16S rRNA Gene Sequencing Dataset of Bacterial Communities of Soil Associated with Ironwood Trees (Casuarina equisetifolia) in Guam

Jin,

Schlub,

Husseneder

2024

Data

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Ironwood trees, which are of great importance for the economy and environment of tropical areas, were first discovered to suffer from a slow progressive dieback in Guam in 2002, later referred to as ironwood tree decline (IWTD). A variety of biotic factors have been shown to be associated with IWTD, including putative bacterial pathogens Ralstonia solanacearum and Klebsiella species (K. variicola and K. oxytoca), the fungus Ganoderma australe, and termites. Due to the soilborne nature of these pathogens, soil microbiomes have been suggested to be a significant factor influencing tree health. In this project, we sequenced the microbiome in the soil collected from the root region of healthy ironwood trees and those showing signs of IWTD to evaluate the association between the bacterial community in soil and IWTD. This dataset contains 4,782,728 raw sequencing reads present in soil samples collected from thirty-nine ironwood trees with varying scales of decline severity in Guam obtained via sequencing the V1–V3 region of the 16S rRNA gene on the Illumina NovaSeq (2 × 250 bp) platform. Sequences were taxonomically assigned in QIIME2 using the SILVA 132 database. Firmicutes and Actinobacteria were the most dominant phyla in soil. Differences in soil microbiomes were detected between limestone and sand soil parent materials. No putative plant pathogens of the genera Ralstonia or Klebsiella were found in the samples. Bacterial diversity was not linked to parameters of IWTD. The dataset has been made publicly available through NCBI GenBank under BioProject ID PRJNA883256. This dataset can be used to compare the bacterial taxa present in soil associated with ironwood trees in Guam to bacteria communities of other geographical locations to identify microbial signatures of IWTD. In addition, this dataset can also be used to investigate the relationship between soil microbiomes and the microbiomes of ironwood trees as well as those of the termites which attack ironwood trees.

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Section: Discussionmentioning

confidence: 99%

Illumina 16S rRNA Gene Sequencing Dataset of Bacterial Communities of Soil Associated with Ironwood Trees (Casuarina equisetifolia) in Guam

Jin,

Schlub,

Husseneder

2024

Data

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“…Guam has a tropical marine climate and is hot and humid year‐round. Average annual temperature is 27.8°C and annual rainfall is 213.3–294.6 cm (Gingerich et al 2015). There are defined dry and wet seasons from January to June and July to December, respectively.…”

Section: Study Areamentioning

confidence: 99%

Effects of ungulate‐proof fencing on space use by wild pigs

Koriakin,

Jolley,

Smith

et al. 2024

J Wildl Manag

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Wild pigs (Sus scrofa) are a highly adaptable species that have invaded many regions and cause significant damage throughout the world. Ungulate‐proof fencing is increasingly used in conjunction with other control techniques to manage wild pig populations. However, little is known about how fencing affects wild pig space use behaviors and whether any changes may be exploited to increase efficacy of control activities. Our goal was to understand how wild pigs altered their space use behaviors in response to newly constructed fencing. Specifically, we examined for changes in space use area (home range and core area), increases in overlap with conspecifics, and shifts in space use as ungulate exclusion fencing was constructed on northern Guam from February 2021 to March 2022. Wild pigs closer to the fence had decreased space use. For every 200 m nearer newly constructed fence, home ranges and core areas decreased approximately 15% and 16%, respectively. When individual wild pigs were enclosed by the fence, those animals increased their home range overlap with conspecifics by approximately 76% compared to wild pigs outside the fence. Wild pigs shifted their home ranges 3 to 9 times more during the first part of fence construction when 68% of the fence was completed compared to all other time periods, with male wild pigs shifting greater distances than females by 1.15 times. The construction of ungulate fencing led to smaller space use areas of wild pigs on both sides of the fence and intensified use of the area inside the fence by wild pigs contained within (i.e., more overlap). Management activities nearer the fence should account for decreases in home range and core area size to maximize population control efforts (i.e., more densely spaced trap sites). Enclosed wild pigs should be eradicated quickly to minimize damages to sensitive flora and fauna and decrease disease risk from intensified movement behaviors inside the fence.

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“…El acuífero Lens del norte de Guam está en riesgo por condiciones meteorológicas más cálidas, sequía y posible aumento de la demanda 28,88 28 .…”

Section: Guamunclassified

Cap. 30. Hawái y las Islas del Pacífico Afiliadas a los Estados Unidos. En: La Quinta Evaluación Nacional del Clima

2023

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Water resources on Guam—Potential impacts of and adaptive response to climate change

Cited by 4 publications

References 17 publications

Illumina 16S rRNA Gene Sequencing Dataset of Bacterial Communities of Soil Associated with Ironwood Trees (Casuarina equisetifolia) in Guam

Illumina 16S rRNA Gene Sequencing Dataset of Bacterial Communities of Soil Associated with Ironwood Trees (Casuarina equisetifolia) in Guam

Effects of ungulate‐proof fencing on space use by wild pigs

Cap. 30. Hawái y las Islas del Pacífico Afiliadas a los Estados Unidos. En: La Quinta Evaluación Nacional del Clima

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