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2 results for “leaf litter amphibian”
Leaf litter quality induces morphological and developmental changes in larval amphibians.
Aquatic consumers exhibit many types of inducible phenotypic responses to variation in resource quantity and quality. Leaf litter constitutes a primary resource in freshwater systems and variation in litter quality can alter the growth and development of aquatic consumers. It is therefore reasonable to hypothesize that variation in litter quality might also induce phenotypic changes in consumers. To test this hypothesis, we exposed two densities of wood frog (Lithobates sylvaticus [Rana sylvatica]) tadpoles to six chemically distinct species of leaf litter from temperate broadleaf and coniferous trees. After several weeks, we quantified development rate, growth rate, intestinal length, size of the oral disc, and five external dimensions of the tadpoles. In addition to substantial changes in growth and development rates, we found striking changes in all morphological responses among different leaf litter environments, including up to 14% longer intestines, 11% deeper tails, and 6% deeper tail muscles. In addition, we found strong relationships of total nitrogen content with all morphological features except growth rate. Our results indicate that differences in resource quality can induce phenotypic changes that are as large as or larger than changes induced by resource quantity. Our study also has substantial implications for the future of aquatic consumers living in forested wetlands given that these forests are currently experiencing widespread changes in tree composition.
Leaf litter amphibian communities
<b>Description: </b><p>Leaf litter amphibian communities</p><p><b>Project: </b>This dataset was collected as part of the following SAFE research project: <a href="https://www.safeproject.net/projects/project_view/84"><b>Composition of amphibian communities</b></a></p><p><b>XML metadata: </b>GEMINI compliant metadata for this dataset is available <a href="https://www.safeproject.net/datasets/xml_metadata?id=96">here</a></p><p><b>Files: </b>This consists of 1 file: template_Faruk.xlsx</p><p><b>template_Faruk.xlsx</b></p><p>This file contains dataset metadata and 2 data tables:</p><ol><li><p><b>Plot environmental data</b> (described in worksheet EnvironData)</p><p>Description: Descriptions of vegetation and plot biophysical characteristics</p><p>Number of fields: 15</p><p>Number of data rows: 141</p><p>Fields: </p><ul><li><b>Locality</b>: SAFE Project sample site (Field type: Location)</li><li><b>Date</b>: Date of observations (Field type: Date)</li><li><b>TreeBigger50m</b>: Number of large trees (Field type: Numeric)</li><li><b>TreeSmaller50m</b>: Number of small trees (Field type: Numeric)</li><li><b>Deadwood</b>: Number of deadwood items (Field type: Numeric)</li><li><b>Litter1</b>: Leaf litter weight (one of four measurements) (Field type: Numeric)</li><li><b>Litter2</b>: Leaf litter weight (one of four measurements) (Field type: Numeric)</li><li><b>Litter3</b>: Leaf litter weight (one of four measurements) (Field type: Numeric)</li><li><b>Litter4</b>: Leaf litter weight (one of four measurements) (Field type: Numeric)</li><li><b>Veg1</b>: Unknown (Field type: Numeric)</li><li><b>Veg2</b>: Unknown (Field type: Numeric)</li><li><b>Veg3</b>: Unknown (Field type: Numeric)</li><li><b>TADPOLE</b>: Number of frog tadpoles observed (Field type: Numeric)</li><li><b>ADULT</b>: Number of frog adults observed (Field type: Numeric)</li><li><b>SPAWN</b>: Number of frog spawn observed (Field type: Numeric)</li></ul></li><li><p><b>Species records</b> (described in worksheet SpeciesData)</p><p>Description: Identity and abundance of frog species</p><p>Number of fields: 5</p><p>Number of data rows: 10</p><p>Fields: </p><ul><li><b>Locality</b>: SAFE Project sample site (Field type: Location)</li><li><b>Date</b>: Date of observation (Field type: Date)</li><li><b>TaxonomicName</b>: Species identity (Field type: Taxa)</li><li><b>Quantity</b>: Number of individuals observed (Field type: Numeric Trait)</li><li><b>Stage</b>: Life history stage (Field type: Categorical)</li></ul></li></ol><p><b>Date range: </b>2011-06-19 to 2011-06-29</p><p><b>Latitudinal extent: </b>4.6882 to 4.7369</p><p><b>Longitudinal extent: </b>117.5746 to 117.6549</p><p><b>Taxonomic coverage: </b><br> All taxon names are validated against the GBIF backbone taxonomy. If a dataset uses a synonym, the accepted usage is shown followed by the dataset usage in brackets. Taxa that cannot be validated, including new species and other unknown taxa, morphospecies, functional groups and taxonomic levels not used in the GBIF backbone are shown in square brackets.</p><div>Animalia<br> - Chordata<br> -  - Amphibia<br> -  -  - Anura<br> -  -  -  - Dicroglossidae<br> -  -  -  -  - <i>Fejervarya</i><br> -  -  -  -  -  - <i>Fejervarya limnocharis</i><br> -  -  -  - Microhylidae<br> -  -  -  -  - <i>Chaperina</i><br> -  -  -  -  -  - <i>Chaperina fusca</i><br></div><p></p>
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