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Filename: drivers/Session_files_driver.php
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File: /var/www/html/index.php
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Filename: Session/Session.php
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File: /var/www/html/index.php
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Function: require_once
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
Line: 249
Function: _error_handler
File: /var/www/html/index.php
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
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Function: require_once
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
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Filename: models/Detail_model.php
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Function: strpos
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Function: insertAPISummary
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Filename: helpers/my_audit_helper.php
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Filename: controllers/Detail.php
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Line: 256
Function: _error_handler
File: /var/www/html/index.php
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
Line Number: 256
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File: /var/www/html/application/controllers/Detail.php
Line: 256
Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
Line Number: 256
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File: /var/www/html/application/controllers/Detail.php
Line: 256
Function: _error_handler
File: /var/www/html/index.php
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Function: require_once
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Message: Undefined array key "usage"
Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
Line: 257
Function: _error_handler
File: /var/www/html/index.php
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Message: Trying to access array offset on value of type null
Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
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Function: _error_handler
File: /var/www/html/index.php
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Filename: controllers/Detail.php
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File: /var/www/html/application/controllers/Detail.php
Line: 258
Function: _error_handler
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Filename: controllers/Detail.php
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Function: _error_handler
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Filename: controllers/Detail.php
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Function: _error_handler
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Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
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Function: file_get_contents
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Function: pubMedGetRelatedKeyword
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Function: pubMedGetRelatedKeyword
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Function: require_once
Emerging pathogens can drive evolutionary shifts in host life-history traits, yet this process remains poorly documented in vertebrate hosts. Amphibian chytridiomycosis, caused by infection with the fungal pathogen Batrachochytrium dendrobatidis (Bd), is the worst recorded wildlife disease and has caused the extinction of over 100 species across multiple continents. A similar number of additional species have experienced mass declines and Bd remains a major source of mortality in many populations of declined species now persisting with the pathogen. Life-history theory predicts that increased extrinsic mortality in Bd-infected populations may alter amphibian life-history traits, but this has not been examined. Here, we investigate whether population Bd status is associated with age and size at maturity by comparing long-exposed Bd-infected populations, Bd-free populations, and museum specimens collected prior to Bd emergence for the endangered Australian frog Litoria verreauxii alpina. We show that Bd-infected populations have a higher proportion of males that mature at 1 year of age, and females that mature at 2 years of age, compared to Bd-free populations. Earlier maturation was associated with reduced size at maturity in males. Consistent with life-history theory, our findings may represent an adaptive evolutionary shift towards earlier maturation in response to high Bd-induced mortality. To our knowledge, this study provides the first evidence for a post-metamorphic Bd-associated shift in an amphibian life-history trait. Given high mortality in other Bd-challenged species, we suggest that chytridiomycosis may be a substantial new selection pressure shaping life-history traits in impacted amphibian species across multiple continents.
Download full-text PDF |
Source |
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http://dx.doi.org/10.1007/s00442-017-3911-7 | DOI Listing |
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