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Spatial and Temporal Variation in the Effects of Climatic Variables on Dugong Calf Production.

Title: Spatial and Temporal Variation in the Effects of Climatic Variables on Dugong Calf Production.
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Name(s): Fuentes, Mariana M P B, author
Delean, Steven, author
Grayson, Jillian, author
Lavender, Sally, author
Logan, Murray, author
Marsh, Helene, author
Type of Resource: text
Genre: Journal Article
Text
Date Issued: 2016-06-29
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: Knowledge of the relationships between environmental forcing and demographic parameters is important for predicting responses from climatic changes and to manage populations effectively. We explore the relationships between the proportion of sea cows (Dugong dugon) classified as calves and four climatic drivers (rainfall anomaly, Southern Oscillation El Niño Index [SOI], NINO 3.4 sea surface temperature index, and number of tropical cyclones) at a range of spatially distinct locations in Queensland, Australia, a region with relatively high dugong density. Dugong and calf data were obtained from standardized aerial surveys conducted along the study region. A range of lagged versions of each of the focal climatic drivers (1 to 4 years) were included in a global model containing the proportion of calves in each population crossed with each of the lagged versions of the climatic drivers to explore relationships. The relative influence of each predictor was estimated via Gibbs variable selection. The relationships between the proportion of dependent calves and the climatic drivers varied spatially and temporally, with climatic drivers influencing calf counts at sub-regional scales. Thus we recommend that the assessment of and management response to indirect climatic threats on dugongs should also occur at sub-regional scales.
Identifier: FSU_pmch_27355367 (IID), 10.1371/journal.pone.0155675 (DOI), PMC4927176 (PMCID), 27355367 (RID), 27355367 (EID), PONE-D-15-52097 (PII)
Publication Note: This NIH-funded author manuscript originally appeared in PubMed Central at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4927176.
Subject(s): Animals
Climate
Dugong/growth & development
Dugong/physiology
El Nino-Southern Oscillation
Female
Geography
Male
Population Dynamics
Pregnancy
Pregnancy, Animal
Queensland
Spatio-Temporal Analysis
Temperature
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_pmch_27355367
Host Institution: FSU
Is Part Of: PloS one.
1932-6203
Issue: iss. 6, vol. 11

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Fuentes, M. M. P. B., Delean, S., Grayson, J., Lavender, S., Logan, M., & Marsh, H. (2016). Spatial and Temporal Variation in the Effects of Climatic Variables on Dugong Calf Production. Plos One. Retrieved from http://purl.flvc.org/fsu/fd/FSU_pmch_27355367