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Cooperative Research Centre

About: Cooperative Research Centre is a based out in . It is known for research contribution in the topics: Population & Sea ice. The organization has 7633 authors who have published 8607 publications receiving 429721 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article, an overview of the relationship between ENSO and rainfall, drought and streamflow in Australia is presented, and the potential for forecasting the hydroclimate variables are investigated by assessing the lag correlations between rainfall and stream flow and the indicators of ENSI several months earlier.

471 citations

Journal ArticleDOI
TL;DR: It is concluded that pre-release training has the potential to enhance the expression of preexisting antipredator behavior, and potential training techniques involve classical conditioning procedures in which animals learn that model predators are predictors of aversive events.
Abstract: Animal reintroductions and translocations are potentially important interventions to save species from extinction, but most are unsuccessful. Mortality due to predation is a principal cause of failure. Animals that have been isolated from predators, either throughout their lifetime or over evolutionary time, may no longer express appropriate antipredator behavior. For this reason, conservation biologists are beginning to include antipredator training in pre-release preparation procedures. We describe the evolutionary and ontogenetic circumstances under which antipredator behavior may degenerate or be lost, and we use principles from learning theory to predict which elements can be enhanced or recovered by training. The empirical literature demonstrates that training can improve antipredator skills, but the effectiveness of such interventions is influenced by a number of constraints. We predict that it will be easier to teach animals to cope with predators if they have experienced ontogenetic isolation than if they have undergone evolutionary isolation. Similarly, animals should learn more easily if they have been evolutionarily isolated from some rather than all predators. Training to a novel predator may be more successful if a species has effective responses to similar predators. In contrast, it may be difficult to teach proper avoidance behavior, or to introduce specialized predator-specific responses, if appropriate motor patterns are not already present. We conclude that pre-release training has the potential to enhance the expression of preexisting antipredator behavior. Potential training techniques involve classical conditioning procedures in which animals learn that model predators are predictors of aversive events. However, wildlife managers should be aware that problems, such as the emergence of inappropriate responses, may arise during such training.

469 citations

Journal ArticleDOI
TL;DR: In this paper, the first continental-scale classification of hydrologic regimes for Australia based on 120 metrics describing ecologically relevant characteristics of the natural flow regime derived from discharge data for 830 stream gauges is presented.
Abstract: Keywords: * Bayesian mixture modelling; * catchment characteristics; * climate; * hydrologic metrics; * prediction; * uncertainty Summary 1. The importance of hydrologic variability for shaping the biophysical attributes and functioning of riverine ecosystems is well recognised by ecologists and water resource managers. In addition to the ecological dependences of flow for aquatic organisms, human societies modify natural flow regimes to provide dependable ecological services, including water supply, hydropower generation, flood control, recreation and navigation. Management of scarce water resources needs to be based on sound science that supports the development of environmental flow standards at the regional scale. 2. Hydrological classification has long played an essential role in the ecological sciences for understanding geographic patterns of riverine flow variability and exploring its influence on biological communities, and more recently, has been identified as a critical process in environmental flow assessments. 3. We present the first continental-scale classification of hydrologic regimes for Australia based on 120 metrics describing ecologically relevant characteristics of the natural hydrologic regime derived from discharge data for 830 stream gauges. Metrics were calculated from continuous time series (15-30 years of record constrained within a 36-year period) of mean daily discharge data, and classification was undertaken using a fuzzy partitional method - Bayesian mixture modelling. 4. The analysis resulted in the most likely classification having 12 classes of distinctive flow-regime types differing in the seasonal pattern of discharge, degree of flow permanence (i.e. perennial versus varying degrees of intermittency), variations in flood magnitude and frequency and other aspects of flow predictability and variability. Geographic, climatic and some catchment topographic factors were generally strong discriminators of flow-regime classes. The geographical distribution of flow-regime classes showed varying degrees of spatial cohesion, with stream gauges from certain flow-regime classes often being non-contiguously distributed across the continent. These results support the view that spatial variation in hydrology is determined by interactions among climate, geology, topography and vegetation at multiple spatial and temporal scales. Decision trees were also developed to provide the ability to determine the natural flow-regime class membership of new stream gauges based on their key environmental and/or hydrological characteristics. 5. The need to recognise hydrologic variation at multiple spatial scales is an important first step to setting regional-scale environmental flow management strategies. We expect that the classification produced here can underpin the development of a greater understanding of flow-ecology relationships in Australia, and management efforts aimed at prescribing environmental flows for riverine restoration and conservation.

468 citations

Journal ArticleDOI
TL;DR: It appears as though eucalypts can benefit from fixed N as early as the first or second year following plantation establishment, and a meta-analysis of 18 published studies revealed several trials in which mixtures were significantly 15 (P<0.001) more productive than monocultures.

466 citations

Journal ArticleDOI
TL;DR: In this article, a range of structurally defined apple and grape proanthocyanidins was isolated in sufficient amount to carry out a formal sensory descriptive analysis study, and the results showed that the degree of polymerization appeared to be the variable that discriminated among the fractions to the greatest extent.
Abstract: A range of structurally defined apple and grape proanthocyanidins was isolated in sufficient amount to carry out a formal sensory descriptive analysis study. Purified proanthocyanidin fractions differed in chain length, degree of galloylation and epigallocatechin content. Astringency attributes of the preparations in a model wine medium were rated while the fractions were held in the mouth and after expectoration. The degree of polymerization appeared to be the variable that discriminated among the fractions to the greatest extent. It affected both the overall astringency and the different individual astringency attributes, with increased ‘drying’, ‘chalky’, ‘adhesive’ and ‘pucker’ characters correlating with increasing chain length. A rougher sensation with increased ‘coarseness’, ‘drying’ and ‘chalkiness’ correlated with an increased degree of galloylation of the fractions. The presence of epigallocatechin units in the proanthocyanidin tended to lower the ‘coarse’ perception. Copyright © 2003 Society of Chemical Industry

465 citations


Authors

Showing all 7633 results

NameH-indexPapersCitations
Eric N. Olson206814144586
Nicholas G. Martin1921770161952
Grant W. Montgomery157926108118
Paul Mitchell146137895659
James Whelan12878689180
Shaobin Wang12687252463
Graham D. Farquhar12436875181
Jie Jin Wang12071954587
Christos Pantelis12072356374
John J. McGrath120791124804
David B. Lindenmayer11995459129
Ashley I. Bush11656057009
Yong-Guan Zhu11568446973
Ary A. Hoffmann11390755354
David A. Hume11357359932
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202211
2021243
2020284
2019300
2018327
2017419