Behavioral attributes influence annual mating success more than morphological traits in male collared lizards

Baird, Troy A.; Hranıtz, John M.; Timanus, Dusti K.; Schwartz, Andrew M.

doi:10.1093/beheco/arm092

Cited by 36 publications

(36 citation statements)

References 88 publications

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“…Sexual selection is present in reptiles with and without sex chromosomes via female and male choice, direct male competition, and potentially via sperm competition [e.g. Pearse and Avise, 2001;Butler and Losos, 2002;Shine, 2003;Poschadel et al, 2006;Baird et al, 2007;Husak and Fox, 2008;Irschick et al, 2008;Van Damme et al, 2008;Uller and Olsson, 2008]. Likewise, sexual conflict is also found in reptiles in the presence and absence of sex chromosomes [e.g.…”

Section: What We Know Thus Farmentioning

confidence: 99%

Co-Evolution of Genomic Structure and Selective Forces Underlying Sexual Development and Reproduction

Valenzuela

2009

Cytogenet Genome Res

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Genomic structure affects the expression and evolution of phenotypes via its effect on genomic function. One example is the presence of sex chromosomes and the development of the sexual phenotype. Multiple forces account for the evolution of genomic structure and function, some acting synergistically and some in an antagonistic manner, in a co-evolutionary process between genomic architecture and environmental effects at different time scales. Here I review the evolution of sex chromosomes and how they affect sex determination, sex ratios, sexual selection, and sexual conflict, at the same time that these phenomena influence the evolution of genome organization. Because of this reciprocal interaction, the need to correctly identify sex chromosome systems in order to understand the causes and consequences of their evolution is emphasized. Importantly, it is argued that the existence of taxa lacking sex chromosomes poses a challenge to current evolutionary models and a unique opportunity to test them empirically using reptiles as a model system.

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Section: What We Know Thus Farmentioning

confidence: 99%

Co-Evolution of Genomic Structure and Selective Forces Underlying Sexual Development and Reproduction

Valenzuela

2009

Cytogenet Genome Res

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“…Some morphological signals, such as an elongated tail or elaborate plumage, are relatively fixed (static sensu Hill et al 1999) since they cannot be extensively modified on a short time scale by the signaler. Morphological signals are generally produced once per year before or at the beginning of the breeding season and remain unmodified until the next year (Hill et al 1999;Loyau et al 2005a, b;Baird et al 2007;van Dongen and Mulder 2008). Morphological signals are thus expected to better reflect genetic quality or long-term viability (Kokko et al 1999;Scheuber et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…On the contrary, behavioral signals such as vigorous displays or song rates can be finely tuned by the signaler depending on the signaler's current quality, motivation, or environmental conditions. Behavioral signals are typically more labile (dynamic; sensu Hill et al 1999) than morphological ones and thus are expected to accurately reflect signaler condition at the time of assessment (Hill et al 1999;Loyau et al 2005a;Baird et al 2007;van Dongen and Mulder 2008).…”

Section: Introductionmentioning

confidence: 99%

“…This potential difference can only be assessed when both signals are contradictory, e.g., when a male exhibits an ornament of high quality while expressing poor courtship behaviors or vice versa. However, it is still disputed how females deal with such contradictory information (Hill et al 1999;Loyau et al 2005a;Baird et al 2007;van Dongen and Mulder 2008).…”

Section: Introductionmentioning

confidence: 99%

“…One can predict that females should value the information content of behavioral signals over morphological signals because behavioral signals provide more accurate information on current male condition (Hill et al 1999;Loyau et al 2005a;Baird et al 2007;Bro-Jørgensen 2010). This is particularly the case when females prefer mating with healthy individuals not only to obtain indirect benefits, in terms of good genes for their offspring or more viable sperm, but also to avoid contracting infectious diseases, since a recent decline in male condition could indicate a challenged immune system (Sheldon 1993;Loyau et al 2005a;Chargé et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Multiple signals in the palmate newt: ornaments help when courting

Cornuau

Rat

Schmeller

et al. 2012

Behav Ecol Sociobiol

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There is increasing evidence that female mate choice is often based on the assessment of multiple male traits, involving both morphology and behavior. We investigated female mate choice for multiple male traits in the palmate newt, Lissotriton helveticus, including male tail filament length, hind foot web size, crest development, body size, ventral coloration, and courtship display activity. Observations of courtship display in the field revealed that females spent more time in front of males with longer tail filaments. Laboratory experiments revealed a more detailed relationship between filament length and courtship display. We found that females took more sperm masses from males with both longer filaments and greater display activity. Experimental shortening of the tail filament length substantially decreased the number of male sperm masses transferred. However, when we experimentally reversed relative filament length between two males in mating trials, male mating success was explained by courtship activity and not by filament length. Our results show that female palmate newts value multiple traits during mate choice, including both morphological ornaments and reproductive behaviors in males. Our results further suggest that, when filament length is below a certain threshold, females may value the information content of courtship activity over that of filament length.

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Reasons for unfulfilled breeding and transfer recommendations in zoos and aquariums

et al. 2021

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One of the primary tools for cooperatively managing animal populations within the Association of Zoos and Aquariums is through Breeding and Transfer Plan (BTP) recommendations. These recommendations consider population demographics, genetics, husbandry, and institutional needs and aim to improve population viability and long‐term sustainability. However, fulfilling (i.e., completing) recommendations can be complicated by biological and logistical challenges. We examined institutional reasons for unfulfilled Breed With, Do Not Breed, Hold, and Send To recommendations collected in surveys in PMCTrack, software for tracking recommendation fulfillment, using descriptive and text‐mining methods. Overall, 73 Animal Programs used PMCTrack to distribute 2335 surveys and accrued responses from 167 zoos and aquariums from 2007 to 2019, with a response rate of 56% (n = 1307). For Breed With recommendations, common reasons were related to an individual animal's status and a pair's breeding behavior; for all other recommendation types, reasons were often management or logistical factors. Most Breed With recommendations were attempted (≥55%) but did not result in detectable pregnancy/eggs or offspring, due to pair incompatibility or not enough time to successfully produce offspring. Hold and Do Not Breed recommendations were often unfulfilled because the BTP recommendation was replaced with an interim (i.e., updated) recommendation during the inter‐planning period. Our results support the importance of some common population management practices, such as maintaining breeding pairs/groups for multiple BTPs to improve mate familiarity, examining husbandry mechanisms to promote breeding success, and making a concerted effort to adhere to planning timelines to facilitate transfers in alignment with breeding seasons.

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Behavioral attributes influence annual mating success more than morphological traits in male collared lizards

Cited by 36 publications

References 88 publications

Co-Evolution of Genomic Structure and Selective Forces Underlying Sexual Development and Reproduction

Co-Evolution of Genomic Structure and Selective Forces Underlying Sexual Development and Reproduction

Multiple signals in the palmate newt: ornaments help when courting

Reasons for unfulfilled breeding and transfer recommendations in zoos and aquariums

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