About: Easy life of males? Indirect evidence that growth is easier than egg production in mangrove-dwelling monitor lizards (Varanus indicus)

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About: Easy life of males? Indirect evidence that growth is easier than egg production in mangrove-dwelling monitor lizards (Varanus indicus) Goto Sponge Distinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.fupress.net/index.php/ah/article/view/12385/12892
Description	In male-larger species of animals, males typically continue to grow after the age of female sexual maturation has been reached. Consequently, a switch of energy allocation occurs as the female investment from growth is shifted into egg production. We focus on the transitional period when both sexes heavily invest into anabolic processes; males invest in the development of body tissues while females predominantly invest in egg production. In captive mangrove-dwelling monitor lizards, we found that relative food intakes as well as quantitative estimates of anabolic processes (relative growth and egg production rates) are fairly comparable between the sexes. In spite of this biochemical clinical values and body condition indices revealed sex differences suggesting costs of reproduction in females. These results clearly illustrate that growth and egg production still substantially differ in associated physiological costs. This may be attributed to qualitative requirements (nutrients, minerals, etc.) of these processes. Our results correspond well with the higher susceptibility and mortality rates of females than males in many lizard species in captivity. In male-larger species of animals, males typically continue to grow after the age of female sexual maturation has been reached. Consequently, a switch of energy allocation occurs as the female investment from growth is shifted into egg production. We focus on the transitional period when both sexes heavily invest into anabolic processes; males invest in the development of body tissues while females predominantly invest in egg production. In captive mangrove-dwelling monitor lizards, we found that relative food intakes as well as quantitative estimates of anabolic processes (relative growth and egg production rates) are fairly comparable between the sexes. In spite of this biochemical clinical values and body condition indices revealed sex differences suggesting costs of reproduction in females. These results clearly illustrate that growth and egg production still substantially differ in associated physiological costs. This may be attributed to qualitative requirements (nutrients, minerals, etc.) of these processes. Our results correspond well with the higher susceptibility and mortality rates of females than males in many lizard species in captivity. (en)
Title	Easy life of males? Indirect evidence that growth is easier than egg production in mangrove-dwelling monitor lizards (Varanus indicus) Easy life of males? Indirect evidence that growth is easier than egg production in mangrove-dwelling monitor lizards (Varanus indicus) (en)
skos:prefLabel	Easy life of males? Indirect evidence that growth is easier than egg production in mangrove-dwelling monitor lizards (Varanus indicus) Easy life of males? Indirect evidence that growth is easier than egg production in mangrove-dwelling monitor lizards (Varanus indicus) (en)
skos:notation	RIV/00216208:11310/13:10193706!RIV14-MSM-11310___
http://linked.open...avai/predkladatel	Přírodovědecká fakulta
http://linked.open...avai/riv/aktivita	I S
http://linked.open...avai/riv/aktivity	I, S
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Frynta, Daniel Frýdlová, Petra Cikánová, Veronika Šimková, Olga
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	71079
http://linked.open...ai/riv/idVysledku	RIV/00216208:11310/13:10193706
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Varanidae; sexual size dimorphism; reproductive investment; growth rate; biochemical clinical values; Bimaturism (en)
http://linked.open.../riv/klicoveSlovo	Bimaturism Varanidae biochemical clinical values sexual size dimorphism reproductive investment growth rate
http://linked.open...odStatuVydavatele	IT - Italská republika
http://linked.open...ontrolniKodProRIV	[A4E666C9F227]
http://linked.open...i/riv/nazevZdroje	Acta Herpetologica
http://linked.open...in/vavai/riv/obor	EG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	8
http://linked.open...iv/tvurceVysledku	Frynta, Daniel Cikánová, Veronika Frýdlová, Petra Šimková, Olga Velensky, Petr Chylikova, Lenka Hnizdo, Jan
http://linked.open...ain/vavai/riv/wos	000330034700004
issn	1827-9635
number of pages	9 (xsd:int)
http://localhost/t...ganizacniJednotka	11310

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