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45 results for “Paternal Care”
Figure 4. Iporangaia pustulosa male twisting the right tarsus IV in Mode of use of sexually dimorphic glands in a Neotropical harvestman (Arachnida: Opiliones) with paternal care
Figure 4. Iporangaia pustulosa male twisting the right tarsus IV, rubbing it against the substrate (seta).
Figure 3 in Mode of use of sexually dimorphic glands in a Neotropical harvestman (Arachnida: Opiliones) with paternal care
Figure 3. Number of males and females of the harvestman Iporangaia pustulosa, tested separately, that touched three 1 × 1 cm pieces of filter paper available simultaneously. The filter papers were rubbed against the sexually dimorphic proximal portion of the metatarsus IV, where males bear lots of pore glands. One piece of filter paper was rubbed against the two metatarsi of a male, the other one on the same regions of a female and the last one was blank.
Female mate choice in an arachnid with exclusive paternal care: males in good condition have higher mating success, but only if they can advertise it
<p><strong>Female mate choice in an arachnid with exclusive paternal care: males in good condition have higher mating success, but only if they can advertise it</strong></p> <p>This repository contains the .csv files used for the statistical analyses of the study "Female mate choice in an arachnid with exclusive paternal care: males in good condition have higher mating success, but only if they can advertise it". In case of questions, please email Laís A. Grossel: <a href="mailto:laisgrossel@gmail.com">laisgrossel@gmail.com</a></p> <p><strong>Data files and structure</strong></p> <p>We have files for verifying the manipulation of males' body condition and a file to assess males' mating success.</p> <p>With the file <strong>morphometry.csv</strong> we determined the body density of all males included in our experiment, using the formula of the ellipsoid: Volume = 4/3 * π * BL/2 * BW/2 * BH/2. In this file, we have the headers:</p> <ul> <li><strong>maleID:</strong> identity of manipulated males</li> <li><strong>visit:</strong> visits to the field, with 7 levels</li> <li><strong>manipulation:</strong> the moment of taking the measures, with 2 levels: before manipulation and after manipulation</li> <li><strong>diet:</strong> diet experimental group, with 2 levels: good and poor</li> <li><strong>body_length:</strong> in mm</li> <li><strong>body_width:</strong> in mm</li> <li><strong>body_height:</strong> in mm</li> <li><strong>body_mass:</strong> to the nearest 0.001 g</li> </ul> <p>With the file <strong>diet_manipulation.csv</strong> we compared the body density of parental males before and after manipulation within each experimental group. In this file, we have the headers:</p> <ul> <li><strong>maleID:</strong> identity of manipulated males</li> <li><strong>diet:</strong> diet experimental group, with 2 levels: good and poor</li> <li><strong>density_before:</strong> body density before manipulation of diet</li> <li><strong>density_after:</strong> body density after manipulation of diet</li> </ul> <p>With the file <strong>density_difference.csv</strong> we compared the body density between males of the two experimental groups after manipulation. In this file, we have the headers:</p> <ul> <li><strong>diet:</strong> diet experimental group, with 2 levels: good and poor</li> <li><strong>body_density:</strong> after manipulation, in g/mm3</li> </ul> <p>With the file <strong>clutches.csv</strong> we analysed the mating success of the males in the experimental groups after manipulation. In this file, we have the headers:</p> <ul> <li><strong>maleID:</strong> identity of manipulated males</li> <li><strong>visit:</strong> visits to the field, with 7 levels</li> <li><strong>diet:</strong> diet experimental group, with 2 levels: good and poor</li> <li><strong>glands:</strong> glands experimental group, with 2 levels: blocked and unblocked</li> <li><strong>exp_group:</strong> experimental group combining the manipulation of diet and glands, with 4 levels: GCBG (good condition and blocked glands), GCUG (good condition and unblocked glands), PCBG (poor condition and blocked glands) and PCUB (poor condition and unblocked glands)</li> <li><strong>clutch:</strong> if the male received eggs from females 15 or 30 days after manipulation, with 2 levels: 0 if the male did not receive eggs and 1 if the male received eggs</li> <li><strong>eggs_number:</strong> number of eggs received from females 15 or 30 days after manipulation</li> </ul>
The evolutionary loss of paternal care is associated with shifts in female life history traits
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Figure 1. Iporangaia pustulosa male touching the metatarsal gland IV in Mode of use of sexually dimorphic glands in a Neotropical harvestman (Arachnida: Opiliones) with paternal care
Figure 1. Iporangaia pustulosa male touching the metatarsal gland IV on a leaf (seta).
Figure 2. Iporangaia pustulosa male rubbing the right metatarsus IV in Mode of use of sexually dimorphic glands in a Neotropical harvestman (Arachnida: Opiliones) with paternal care
Figure 2. Iporangaia pustulosa male rubbing the right metatarsus IV against the substrate (seta).
Data from: Diversity and stability of egg-bacterial assemblages: the role of paternal care in the glassfrog Hyalinobatrachium colymbiphyllum
Embryos of oviparous organisms must cope with harsh environments and are especially susceptible to disease, considering that many immune mechanisms do not develop until later in life. Parents may transmit symbiotic microflora to eggs, which can contribute to embryo immune defense. Despite the importance of symbiotic microbes for immune function and survival of adult amphibians, vertical transfer of symbionts in amphibians has received less attention than in other taxa. Here, we test the role of male-only parental care in establishing and maintaining the diversity of egg-bacterial assemblages in a Neotropical glassfrog (Centrolenidae). Previous research suggests that father Hyalinobatrachium colymbiphyllum may transfer bacterial symbionts to their eggs. We combined a male-removal experiment in situ with 16S rRNA gene amplicon sequencing to determine whether egg attendance by father H. colymbiphyllum influences the bacterial community and survival of eggs. We found that eggs harbor a diverse and stable bacterial assemblage. Despite different host environments, we found that adult skin and eggs supported very similar bacterial assemblages—even after removing fathers. While we found overlap in the bacteria present on eggs and their fathers, our experiment reveals that extended male care does not contribute to the maintenance of egg-bacterial communities, so there may be other potential routes of transfer. This study contributes to our understanding of the diversity and maintenance of egg microbiomes, and motivates further research on how initial bacteria are acquired and the ontogenetic development of host–symbiont communities.
Female extra-pair behavior is not associated with reduced paternal care in Thorn-tailed Rayadito
<p>Extra-pair behavior is present in 76% of socially monogamous bird species with biparental care. This behavior may produce costs to females related to a reduction in paternal care. We estimated the percentage of extra-pair offspring and quantified paternal care in 44 nests of Thorn-tailed Rayadito (Aphrastura spinicauda) to assess whether males reduce their parental care when females obtain extra-pair fertilizations. We used data from a sub-Antarctic population of Rayadito located on Navarino Island (55°4′S, 67°40′W), southern Chile. We found no statistical support for a relationship between variation in paternal care and the percentage of extra-pair offspring. We discuss how the inability of breeding males to assess their genetic paternity and potential restrictions on behavioral flexibility may explain this result. Additionally, if paternal care is subjected to sexual selection, this could limit a facultative response to female extra-pair behavior by males. Finally, it is possible that a reduction in paternal care might not have evolved in this particular locality given the low frequency of extra-pair paternity in our study population.</p>
Evolution of female colors in birds: The role of female cost of reproduction and paternal care
<p><span>Female ornamentation is frequently observed in animal species and is sometimes found as more evolutionarily labile than male ornamentation. A complex array of factors may explain its presence and variation. Here we assessed the role of female cost of reproduction and paternal care. Both factors have been pinpointed as important by theoretical studies but have not been investigated yet in detail at the interspecific level. We worked on 133 species of North temperate Passeriformes bird species for which both the clutch volume – here taken as the proxy of female cost of reproduction – and the amount of paternal care are relatively well known. Using spectrometry, we measured the whole-body colored plumage patches and quantified three metrics corresponding to brightness (i.e. achromatic component), color chromaticity (i.e. intensity), and color volume (i.e. diversity). We found a strong association between male and female color metrics. Controlling for this association, we found additional small but detectable effects of both cost of reproduction and paternal care. First, females of species with more paternal care were slightly brighter. Second, the interaction between the level of paternal care and egg volume was correlated with female color intensity: females with more paternal care tended to be more chromatic, only when their investment in reproduction was low. Together these results suggest that female cost of reproduction and paternal care are part of the multiple factors explaining variation of female coloration, besides the strong covariation between male and female coloration.</span></p>
Data from: Paternal hatching care regulates the timing, synchrony, and success of hatching in a coral reef fish
<p>In oviparous species, the timing of hatching is a crucial decision, but for developing embryos, assessing cues that indicate the optimal time to hatch is challenging. In species with parental care, parents can assess environmental conditions and induce their offspring to hatch. We provide the first documentation of parental hatching regulation in a coral reef fish, demonstrating that male neon gobies (<em>Elacatinus colini</em>) directly regulate hatching by removing embryos from the clutch and spitting hatchlings into the water column. All male gobies synchronized hatching within 2h of sunrise, regardless of when eggs were laid. Paternally-incubated embryos hatched later in development, more synchronously, and had higher hatching success than artificially-incubated embryos that were shaken to simulate paternal hatching cues or not stimulated. Artificially-incubated embryos displayed substantial plasticity in hatching times (range: 88 – 244 hours post-fertilization), suggesting that males could respond to environmental heterogeneity by modifying the hatching time of their offspring. Finally, paternally-incubated embryos hatched with smaller yolk sacs and larger propulsive areas than artificially-incubated embryos, suggesting that paternal effects on hatchling phenotypes may influence larval dispersal and fitness. These findings highlight the complexity of fish parental care and may have important, and currently unstudied, consequences for fish population dynamics.</p>
Effects of nest-site availability on male-male competition and the foraging costs associated with paternal care in a resource-defense species
<p><strong>Effects of nest-site availability on male-male competition and associated costs of nest site maintenance and paternal care in a resource-defense species</strong></p> <p>This repository contains the .csv files used for the statistical analyses of the study "Effects of nest-site availability on male-male competition and associated costs of nest site maintenance and paternal care in a resource-defense species". In case of questions, please email Laís A. Grossel: <a href="mailto:laisgrossel@gmail.com">laisgrossel@gmail.com</a></p> <p><strong>Data files and structure</strong></p> <p>We have files for the analysis with field and experimental data.</p> <p>With the file <strong>field.csv</strong> we tested the probability of males obtaining a nest and receiving eggs from females. In this file, we have the headers:</p> <ul> <li><strong>maleID:</strong> identity of males in the field</li> <li><strong>DSW:</strong> dorsal scute width, in mm</li> <li><strong>mass:</strong> to the nearest 0.001 g</li> <li><strong>nest_possession:</strong> with 2 levels: 0 if the male did not possess a nest and 1 if the male possessed a nest</li> <li><strong>nest_opening:</strong> in cm</li> <li><strong>parental_status:</strong> with 3 levels: 0 if the male did not have a nest, 1: if the male had a nest but no eggs, and 2: if the male had a nest and eggs</li> </ul> <p>With the file <strong>experiment_nests.csv</strong> we tested predictions related with the nest possession. In this file, we have the headers:</p> <ul> <li><strong>terrariaID:</strong> identity of the 14 terraria (containing 4 or 8 nests)</li> <li><strong>exp_group:</strong> experimental group, with 2 levels of nests availability: low (4 nests per terraria) and high (8 nests per terraria)</li> <li><strong>nestID:</strong> identity of the nests</li> <li><strong>occupation:</strong> if the nest was once occupied during the experiment, with 2 levels: 0 if it was never occupied and 1 if it was occupied at least once</li> <li><strong>occupied_scans:</strong> number of scans with any male inside the nest</li> <li><strong>vacant_scans:</strong> number of scans without any male inside the nest</li> <li><strong>total_scans:</strong> total number of observation scans </li> <li><strong>owners:</strong> number of different owners of the nest (at least 6 consecutive scans)</li> <li><strong>turnover:</strong> if there was at least a substitution of the nest owner without figths, with 2 levels: 0 if there was not any substitution and 1 if there was a substitution</li> <li><strong>turnovers_number:</strong> number of substitutions of the nest owner without figths</li> <li><strong>takeover:</strong> if there was at least a takeover attempt of the nest after figths, with 2 levels: 0 if there was not any attempt and 1 if there was an attempt</li> <li><strong>takeovers_number:</strong> number of takeover attempts of the nest after figths</li> <li><strong>fight:</strong> if there was at least a figth inside or close to the nest, with 2 levels: 0 if there was not any figth and 1 if there was a figth</li> <li><strong>fights_number:</strong> number of figths inside or close to the nest</li> <li><strong>canibalism:</strong> if there was at least a cannibalism event inside the nest, 2 levels: 0 if there was not any cannibalism event and 1 if there was a cannibalism event</li> <li><strong>canibalism_number:</strong> number of cannibalism events inside the nest</li> </ul> <p>With the file <strong>experiment_males.csv</strong> we tested predictions related to the males owners. In this file, we have the headers:</p> <ul> <li><strong>terrariaID:</strong> identity of the 14 terraria (containing 4 or 8 nests)</li> <li><strong>exp_group:</strong> experimental group, with 2 levels of nests availability: low (4 nests per terraria) and high (8 nests per terraria)</li> <li><strong>maleID:</strong> identitity of the males</li> <li><strong>DSW:</strong> dorsal scute width, in mm</li> <li><strong>nest_possession:</strong> with 2 levels: 0 if the male never possessed a nest during the experiment and 1 if the male possessed a nest at least once (6 consecutive scans)</li> <li><strong>nestID:</strong> identity of the nest possessed by the male</li> <li><strong>inside_scans:</strong> number of scans with the male inside his nest</li> <li><strong>outside_scans:</strong> number of scans with the male outside his nest</li> <li><strong>total_scans:</strong> total number of scans in which the male was the owner of the nest</li> <li><strong>takeover:</strong> if the male suffered a takeover attempt of his nest, with 2 levels: 0 if the male did not suffer any attempt and 1 if the male suffered an attempt</li> <li><strong>eggs:</strong> if the male received eggs from a female, with 2 levels: 0 if the male did not receive eggs and 1 if the male received eggs</li> <li><strong>eggs_number:</strong> number of eggs received </li> <li><strong>cannibalism:</strong> if the owner male cannibalized the eggs inside the nest, 2 levels: 0 if the male did not cannibalize eggs and 1 if the male cannibalized eggs</li> <li><strong>cannibalism_number:</strong> number of cannibalism events by the owner male </li> </ul> <p>With the file <strong>fights-takeovers.csv</strong> we tested predictions related with nest takeovers. In this file, we have the headers:</p> <ul> <li><strong>terrariaID:</strong> identity of the 14 terraria (containing 4 or 8 nests)</li> <li><strong>exp_group:</strong> experimental group, with 2 levels of nests availability: low (4 nests per terraria) and high (8 nests per terraria)</li> <li><strong>nestID:</strong> identity of the nest possessed by the male</li> <li><strong>focalID:</strong> identitity of the focal males (the owner nest)</li> <li><strong>DSW:</strong> dorsal scute width, in mm</li> <li><strong>fight:</strong> if the male was involved in at least a figth, with 2 levels: 0 if the male was not involved in any figth and 1 if the male was involved in a figth</li> <li><strong>takeover:</strong> if the male suffered a takeover attempt of his nest, with 2 levels: 0 if the male did not suffer any attempt and 1 if the male suffered an attempt. Obs: the nest takeover always happens after a fight. If there was a takeover, then there was a fight too.</li> <li><strong>res_focal: </strong>result of the figth or takeover for the focal male, with 2 levels: 0 if the focal male did not lose the figth or the nest and 1 if the focal male lost the figth or the nest</li> <li><strong>intruderID:</strong> identity of the intruder male involved in the figth or the takeover with the owner male</li> <li><strong>intruder_DSL: </strong>dorsal scute width of the intruder male, in mm</li> <li><strong>dyad:</strong> identity of the two individuals involved in the figth or takeover (owner male and intruder male)</li> <li><strong>DSW_difference:</strong> difference between the dorsal scute width of the dyad (focal male minus intruder male)</li> </ul> <p>With the file <strong>foraging.csv</strong> we tested a prediction related with males foraging. In this file, we have the headers:</p> <ul> <li><strong>terrariaID:</strong> identity of the 14 terraria (containing 4 or 8 nests)</li> <li><strong>exp_group:</strong> experimental group, with 2 levels of nests availability: low (4 nests per terraria) and high (8 nests per terraria)</li> <li><strong>nestID:</strong> identity of the nest possessed by the male</li> <li><strong>maleID:</strong> identitity of the males</li> <li><strong>parental_status:</strong> with 2 levels: 0 if the male did not have eggs in the nest and 1: if the male had eggs</li> <li><strong>inside_scans:</strong> number of scans with the male inside his nest</li> <li><strong>outside_scans:</strong> number of scans with the male outside his nest</li> <li><strong>total_scans:</strong> total number of scans in which the male was the owner of the nest</li> </ul>
Data from: Diversity and stability of egg-bacterial assemblages: the role of paternal care in the glassfrog Hyalinobatrachium colymbiphyllum
Open the record for dataset details and reuse information.
Evolution of female colors in birds: The role of female cost of reproduction and paternal care
Open the record for dataset details and reuse information.
Male activity under risk predicts paternal care and reproductive success in a bi-parental cichlid
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Female extra-pair behavior is not associated with reduced paternal care in Thorn-tailed Rayadito
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Conflict and cooperation in male-male partnerships alters paternal care in the ocellated wrasse
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Data from: Paternal hatching care regulates the timing, synchrony, and success of hatching in a coral reef fish
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Data from: The costs and benefits of paternal care in fish: a meta-analysis
<p><span><span><span><span><span><span><span><span><span><span><span>Male-only parental care, while rare in most animals, is a widespread strategy within teleost fish. The costs and benefits to males of acting as sole carer are highly variable between fish species making it challenging to determine the selective pressures driving the evolution of male-only care to such a high prevalence. We conducted a phylogenetic meta-analysis to examine the costs and benefits of paternal care across fish species. We found no evidence that providing care negatively affects male condition. In contrast to other taxa, we also found limited evidence that male care has evolved as a strategy to improve offspring survival. Instead, we found that males already caring for a brood are preferred by females and that this preference is strongest in those species in which males work harder to care for larger broods. Thus, in fish, investment in offspring care does not constrain a male's mating success but rather augments it, suggesting that the relatively high prevalence of male-only care in fish may be in part explained by sexual selection through female preference for caring males. </span></span></span></span></span></span></span></span></span></span></span></p>
Data from: Male and female preferences for nest characteristics under paternal care
Nests play a critical role for offspring development across the animal kingdom. Nest quality may contribute to the builder's extended phenotype and serve as an ornament during mate choice. We examined male and female nest choice in the common goby (Pomatoschistus microps), a benthic fish with male-only parental care where females deposit eggs in male-built nests. Using pre-built nest models, we independently manipulated two candidate nest quality traits, (i) nest entrance width with a role in oxygen ventilation and (ii) extent of sand cover with a role in camouflage. In simultaneous choice trials, male gobies exhibited no preference for any nest model type. This suggests that initial characteristics of a nesting substrate have minor importance for males, which usually remodel the nest. Females were given a choice between two males occupying either entrance- or cover-manipulated nests. The same pair of males was then exposed to a second female but now with alternated nest types assigned. Most females were consistent in choosing the same, typically the heavier male of the two regardless of nest properties. However, the females that chose the same nest regardless of the male preferred low over high sand coverage and narrow over wide nest entrance. Our results indicate that females base their mating decision on a combination of male phenotype and nest traits. While we found no indication that females are attracted to highly decorated nests, our study is the first in fishes to disentangle a preference for narrow (and thus more protective) nest entrances independent of nest coverage.
Data from: Paternal factors and inequity associated with access to maternal health care service utilization in Nepal: a community based cross-sectional study
Background: The threat of maternal mortality can be reduced by increasing use of maternal health services. Maternal death and access to maternal health care services are inequitable in low and middle income countries.The aim of this study is to assess associated paternal factors and degree of inequity in access to maternal health care service utilization. Methods: Analysis illustrates on a cross-sectional household survey that followed multistage-cluster sampling. Concentration curve and indices were calculated. Binary logistic regression analysis was executed to account paternal factors associated with the utilization of maternal health services. Path model with structural equation modeling (SEM) examined the predictors of antenatal care (ANC) and institutional delivery. Results: The finding of this study revealed that 39.9% and 45.5% of the respondents' wives made ANC visits and utilized institutional delivery services respectively. Men with graduate and higher level of education were more likely (AOR: 5.91, 95% CI; 4.02, 8.70) to have ANC of their wives than men with no education or primary level of education. Men with higher household income (Q5) were more likely (1.99, 95% CI; 1.39, 2.86) to have ANC for their wives. Similarly, higher household income (Q5) also determined (2.74, 95% CI; 1.81, 4.15) for institutional delivery of their wives. Concentration curve and indices also favored rich than the poor. SEM revealed that ANC visit was directly associated to institutional delivery. Conclusions: Paternal factors like age, household wealth, number of children, ethnicity, education, knowledge of danger sign during pregnancy, and husband's decision making for seeking maternal and child health care are crucial factors associated to maternal health service utilization. Higher ANC coverage predicts higher utilization of the institutional delivery. Wealthier population is more concentrated to maternal health services. The inequities between the poor and the rich are necessary to be addressed through effective policy and programs.
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