Parental Care, Sexual Selection, and Mating Systems in Neotropical Poison Frogs

Summers, Kyle; Tumulty, James P.

doi:10.1016/b978-0-12-416028-6.00011-6

Cited by 69 publications

(76 citation statements)

References 130 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…What is needed to further 50 metamorphosis [9][10][11]. Importantly, both male and female care occur with and without pair 67 bonding in this clade [12], allowing the dissociation of pair bonding from parental care. The 68 diversity of behavioral care strategies between closely-related poison frog species affords a 69 unique opportunity to identify physiological, neural, and molecular contributions to parental care 70 and its evolution.…”

Section: Abstract 27mentioning

confidence: 99%

“…Neural activity during tadpole transport differed between 297 males and females in uniparental D. tinctorius, but not biparental R. imitator. Females are not 298 directly involved in tadpole transport in either species; however, biparental R. imitator females 299 provide parental care in the form of egg attendance prior to tadpole transport and tadpole 300 provisioning following transport [12,30,31]. Thus, similar patterns of neural activity in male and 301 female biparental R. imitator could arise either because both sexes are in a "parental state" that 302 modulates long-term circuit activity or because even indirect involvement in tadpole transport 303 activates parental circuitry (i.e.…”

Section: Galanin Neuron Number and Activity 242mentioning

confidence: 99%

See 1 more Smart Citation

The neural basis of tadpole transport in poison frogs

Fischer

Roland

Moskowitz

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

26understand the mechanisms underlying parental behavior and its evolution are comparative 51 studies across closely-related species that vary in parental care strategies. 52Parental care can be conceptualized as a complex set of inter-related behaviors controlled 53 by brain regions involved in the integration of sensory, social, motivational, and cognitive aspects 54 of care [6]. Across vertebrates, these functions are largely performed by the social decision-55 making network (SDMN; [7]), a highly interconnected group of evolutionarily ancient and 56 functionally conserved brain regions. Although studies on the neural mechanisms of parental 57 behavior are sparse outside mammals, and particularly lacking in amphibians and reptiles, the 58 SDMN provides an ideal starting point for this work as network nodes and connectivity are well 59 understood, highly conserved, and behaviorally important ligand/receptor complexes have been 60 extensively studied. 61Dendrobatid poison frogs show remarkable diversity in parental care across closely 62 related species, including male uniparental care, female uniparental care, and biparental care. 63Parental care in poison frogs involves egg attendance during embryo development, generally 64 followed by transportation of tadpoles "piggyback" to pools of water upon hatching [8][9][10]. In some 65 species, mothers regularly return to nourish growing tadpoles with unfertilized, trophic eggs until 66 the laboratory, allowing us to identify both parental individuals and their non-caregiving partners. 87To control for effects of experience, all pairs successfully reared at least one clutch from egg-88 laying through tadpole transport prior to the experiment. For the non-parental group, we collected 89 frog pairs between parental bouts when they were not caring for eggs or tadpoles, collecting 90 individuals of both the caregiving sex (non-transport; n=10 D. tinctorius, n=7 R. imitator) and their 91 opposite sex partners (non-transport partner; n=9 D. tinctorius, n=8 R. imitator). For the tadpole 92 5 transport group, when we found transporting frogs, we collected both the tadpole transporting 93 individual (tadpole transporter; n=13 D. tinctorius, n=7 R. imitator) and its opposite sex, non-94 transporting partner (transport partner; n=11 D. tinctorius, n=6 R. imitator). All brain tissue was 95 collected in an identical manner: frogs were captured, anesthetized with benzocaine gel, weighed 96 and measured, and euthanized by rapid decapitation. This entire process took less than 5 97 minutes. All procedures were approved by the Harvard University Animal Care and Use 98 Committee (protocol no. 12-10-1). 99 100 Field sample collection 101Oophaga sylvatica (Puerto Quito-Santo Domingo population) were collected in field 102 enclosures in Ecuador in April and May of 2016. We collected non-parental control females (N=8) 103 from enclosures containing only mature females to ensure that frogs were not currently caring for 104 eggs or tadpoles. We collected tadpole transporting females (N=5) fr...

show abstract

Section: Abstract 27mentioning

confidence: 99%

Section: Galanin Neuron Number and Activity 242mentioning

confidence: 99%

The neural basis of tadpole transport in poison frogs

Fischer

Roland

Moskowitz

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Females arrive after the males at these sites, are mated by the awaiting males, and then gain access to the oviposition resource (Dodson, ). Male Phytalmia that gather in such sites compete amongst themselves to protect the available resources, so maintaining high quality territories and increasing their chances of mating, a common male behavioral pattern in resource‐based mating systems (Scott, ; Summers & Tumulty, ). In contrast, nonresource‐based mating systems offer no rewards other than mate location.…”

Section: Introductionmentioning

confidence: 98%

“…Successful mating in most land animals must be preceded by males and females first finding each other in amongst themselves to protect the available resources, so maintaining high quality territories and increasing their chances of mating, a common male behavioral pattern in resource-based mating systems (Scott, 2009;Summers & Tumulty, 2013). In contrast, nonresource-based mating systems offer no rewards other than mate location.…”

Section: Introductionmentioning

confidence: 99%

The mating system of the true fruit flyBactrocera tryoniand its sister species,Bactrocera neohumeralis

Ekanayake

Jayasundara

Peek³

et al. 2016

Insect Science

View full text Add to dashboard Cite

The frugivorous "true" fruit fly, Bactrocera tryoni (Queensland fruit fly), is presumed to have a nonresourced-based lek mating system. This is largely untested, and contrary data exists to suggest Bactrocera tryoni may have a resource-based mating system focused on fruiting host plants. We tested the mating system of Bactrocera tryoni, and its close sibling Bactrocera neohumeralis, in large field cages using laboratory reared flies. We used observational experiments that allowed us to determine if: (i) mating pairs were aggregated or nonaggregated; (ii) mating system was resource or nonresource based; (iii) flies utilized possible landmarks (tall trees over short) as mate-rendezvous sites; and (iv) males called females from male-dominated leks. We recorded nearly 250 Bactrocera tryoni mating pairs across all experiments, revealing that: (i) mating pairs were aggregated; (ii) mating nearly always occurred in tall trees over short; (iii) mating was nonresource based; and (iv) that males and females arrived at the mate-rendezvous site together with no evidence that males preceded females. Bactrocera neohumeralis copulations were much more infrequent (only 30 mating pairs in total), but for those pairs there was a similar preference for tall trees and no evidence of a resource-based mating system. Some aspects of Bactrocera tryoni mating behavior align with theoretical expectations of a lekking system, but others do not. Until evidence for unequivocal female choice can be provided (as predicted under a true lek), the mating system of Bactrocera tryoni is best described as a nonresource based, aggregation system for which we also have evidence that land-marking may be involved.

show abstract

“…Females also occasionally transport tadpoles (J. P. Tumulty personal observation) and may sometimes feed tadpoles unfertilized trophic eggs (Bourne et al, ). Despite the fact that males seem to provide the majority of the parental care in this species, our observations suggest that golden rocket frogs, similar to other close relatives (reviewed in Summers & Tumulty, ), are not sex‐role reversed: Males have been observed to compete for females (J. P. Tumulty personal observation), females choose males based on their advertisement calls (Pettitt, ), and males likely have a higher potential reproductive rate than females since males care for egg clutches from multiple females simultaneously (Pettitt, ).…”

Section: Introductionmentioning

confidence: 79%

“Reverse” sexual dichromatism in a Neotropical frog

Engelbrecht-Wiggans

Tumulty

2019

Ethology

View full text Add to dashboard Cite

Sexual dichromatism is widespread among animals, but examples of “reverse” sexual dichromatism, in which females are more brightly colored than males, are extremely rare. We discovered a unique case of reverse sexual dichromatism in the golden rocket frog (Anomaloglossus beebei), a diurnal Neotropical frog. Females are bright “golden” in color, and males are drab tan with brown pigmentation that darkens when they are calling. Here, we document this color variation with calibrated digital photography and further show that there is no evidence for sex‐specific habitat matching; both sexes live in the same well‐lit habitat on green bromeliad leaves. Our results suggest that color variation in this species is an intraspecific signal and provide an important exception to the general expectation that males are more visually conspicuous in species with conventional sex roles.

show abstract

Parental Care, Sexual Selection, and Mating Systems in Neotropical Poison Frogs

Cited by 69 publications

References 130 publications

The neural basis of tadpole transport in poison frogs

The neural basis of tadpole transport in poison frogs

The mating system of the true fruit flyBactrocera tryoniand its sister species,Bactrocera neohumeralis

“Reverse” sexual dichromatism in a Neotropical frog

Contact Info

Product

Resources

About