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Evolution of ecomorphological variat...

Brown, Rafe Marion.

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Evolution of ecomorphological variation and acoustic diversity in mate-recognition signals of Southeast Asian forest frogs (subfamily Platymantinae).

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Evolution of ecomorphological variation and acoustic diversity in mate-recognition signals of Southeast Asian forest frogs (subfamily Platymantinae)./
作者:	Brown, Rafe Marion.
面頁冊數:	364 p.
附註:	Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 3905.
Contained By:	Dissertation Abstracts International65-08B.
標題:	Biology, Zoology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3143659
ISBN:	0496015265

Evolution of ecomorphological variation and acoustic diversity in mate-recognition signals of Southeast Asian forest frogs (subfamily Platymantinae).
Brown, Rafe Marion.

Evolution of ecomorphological variation and acoustic diversity in mate-recognition signals of Southeast Asian forest frogs (subfamily Platymantinae). - 364 p.

Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 3905.

Thesis (Ph.D.)--The University of Texas at Austin, 2004.

I estimated evolutionary relationships of frogs of the subfamily Platymantinae (genera Platymantis, Batrachylodes, Palmatorappia, Discodeles, Ceratobatrachus ) and their relatives (genus Ingerana and various SE Asian ranids) using mitochondrial gene sequences. Various methods of phylogenetic inference all suggested that platymantines consist of two reciprocally monophyletic clades, one composed of Philippine Platymantis and the other containing all Papuan-Solomon-Bismarck archipelago taxa. Non-Platymantis genera are nested within Platymantis and fall basal to SW Pacific island archipelago species.

ISBN: 0496015265Subjects--Topical Terms:

1018632
Biology, Zoology.

Evolution of ecomorphological variation and acoustic diversity in mate-recognition signals of Southeast Asian forest frogs (subfamily Platymantinae).
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245 1 0 $a Evolution of ecomorphological variation and acoustic diversity in mate-recognition signals of Southeast Asian forest frogs (subfamily Platymantinae).
300 $a 364 p.
500 $a Source: Dissertation Abstracts International, Volume: 65-08, Section: B, page: 3905.
500 $a Supervisors: David Cannatella; David Hillis.
502 $a Thesis (Ph.D.)--The University of Texas at Austin, 2004.
520 $a I estimated evolutionary relationships of frogs of the subfamily Platymantinae (genera Platymantis, Batrachylodes, Palmatorappia, Discodeles, Ceratobatrachus ) and their relatives (genus Ingerana and various SE Asian ranids) using mitochondrial gene sequences. Various methods of phylogenetic inference all suggested that platymantines consist of two reciprocally monophyletic clades, one composed of Philippine Platymantis and the other containing all Papuan-Solomon-Bismarck archipelago taxa. Non-Platymantis genera are nested within Platymantis and fall basal to SW Pacific island archipelago species.
520 $a I recognized 51 evolutionary lineages of Philippine platymantines and attempted to statistically define morphological, ecological, and acoustic classes of species. Multivariate analyses of continuous morphological characters suggested that species diversity falls into five classes: (1) canopy frogs, (2) shrub frogs, (3) ground frogs, (4) giants, and (5) miniaturized species. Analyses of 10 acoustic characters similarly distinguished five call types: (1) simple single pulse ("tink") calls, (2) pure tone calls, (3) frequency sweeps, (4) amplitude-modulated pulsed calls, and (5) complex calls. Although the correlation of morphological and call types was not perfect, their general association with each other and with specific microhabitat preferences suggests selection for suites of associated morphological, ecological, and behavioral traits.
520 $a I also tested the Acoustic Adaptation Hypothesis (AAH) and the prediction that species should produce acoustic signals in the environments where those calls transmit best. I used playback experiments in which I broadcasted calls into different forest types, re-recorded calls along distance transects and statistically compared these experimentally degraded calls to non-degraded exemplars. I found moderate support for the predictions of the AAH and the general prediction that species may evolve advertisement calls that maximize transmission efficacy in preferred microhabitats.
520 $a Finally, I mapped call characters on the phylogeny and asked whether "morphological" call characters (e.g., dominant frequency) and "behavioral" call characters (e.g., call rate) have evolved at different rates. Results suggested that some characters evolved more rapidly than others, but there was no clear-cut distinction between morphological and behavioral classes. Nevertheless, patterns of repeated evolution of call types and differential performance of calls in various environments suggest repeated evolutionary convergence on morphological, ecological, and behavioral traits across replicated radiations of platymantine frogs.
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650 4 $a Biology, Ecology. $3 1017726
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710 2 0 $a The University of Texas at Austin. $3 718984
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790 1 0 $a Hillis, David, $e advisor
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