Find research datasets worth reusing

Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.

568

datasets available to search

ShareScore release 0.9.0

Dataset results

568 results for “brood”

Learn how ShareScore rates datasets ↗

zenodo36/100

List of weevils involved in brood site pollination. Published records and new observations

List of plant-weevil brood-site pollination mutualism obtained through literature review completed by unpublished observations. Weevil names and authorship follows the Weevil taxa database (accessed January 2023) otherwise stated. Plant names have been updated according to the World Flora Online (<a href="http://www.worldfloraonline.org/">http://www.worldfloraonline.org/</a>, accessed August 2022).

opencc-by-4.0Apr 2023View details →

dryad36/100

When parents play favourites: Brood demand shapes parental preference for offspring UV colour

Parents might initially produce more offspring than they might be able to raise. However, when offspring demand exceeds their parents´ rearing capacity, parents might shift care towards the offspring that yield greater fitness returns to achieve their optimal brood size via brood reduction. Such favoritism could rely on offspring signaling traits if these inform parents about offspring quality and hence about the pay-offs of their investment. Here we investigated whether favoritism of blue tit (Cyanistes caeruleus) parents for an offspring signal (i.e., ultraviolet (UV) plumage coloration) varies with brood demand. To test this, we experimentally blocked the UV reflectance of yellow breast feathers in half of the nestlings of each brood, and then we sequentially performed two opposing brood size manipulations to vary nestling demand below or above parental rearing capacity. In reduced broods, nestlings begged overall less intensely and gained more body mass, supporting that parental rearing capacities sufficed to satisfy brood demand. Moreover, in reduced broods, UV-blocked nestlings (i.e., low-quality offspring) were fed and prey-tested more often. Yet, they begged more than control nestlings, suggesting that they were perhaps treated differently by other family members or that they may exploit parental preferences beyond actual need (at least in reduced nests). Parents flexibly shifted their feeding rate and favoritism in response to short-term changes in family size, as there was no parental preference in enlarged broods. Such flexible parental feeding rules may allow parents to gain the upper hand in parent-offspring conflict. However, we did not find evidence that parental favoritism facilitated brood reduction, at least in conditions were demand was temporally enhanced.

opencc-zeroDec 2021View details →

dryad36/100

Data from: Brood size, food availability, and body size affects male care decisions and offspring performance

Parental care strategies do not only vary greatly across species, but also within species, there can be substantial between- and within-individual variation in parental care behaviour. To better understand the evolution of care strategies, it is crucial to determine how and when parents modify their behaviour in response to internal as well as environmental factors. Here, we investigated the effect of brood size, resource size and an individual's quality on care strategies of uniparental males and examined the downstream consequences on offspring performance in the burying beetle Nicrophorus vespilloides. Burying beetles breed on small vertebrate cadavers and, on average, males invest much less in care than females. Nevertheless, we found that uniparentally caring males were responsive to their social and non-social environment and adjusted the amount as well as the type of care to the size of the brood, the size of the cadaver and their own body size. Additionally, we show that the care strategies affected offspring performance. Specifically, males that cared longer had larger and more surviving larvae. Our results add to our understanding of plastic parenting strategies by showing that even the sex that provides less care can evolve a very flexible care behaviour.

opencc-zeroMay 2023View details →

dryad36/100

Data for: Repeatable negotiation rules? only females show repeatable response to partner removal in a brood-provisioning songbird

Theoretical models indicate that the evolution of biparental care depends on how parents behaviorally negotiate their level of care in response to those of their partner and whether sexes and individuals consistently vary in their response (compensatory response). While compensatory response has been widely investigated empirically, its repeatability has rarely been assessed. In this study, we used a reaction norm approach to investigate the repeatability of the compensatory offspring provisioning of a parent after temporary removal of its partner in the pied flycatcher (Ficedula hypoleuca) across different breeding seasons and partners. We found that only females partially compensated for the short-term removal of the partner and their response was significantly repeatable across years while breeding with different partners. This study highlights the importance of considering among individual differences in negotiation rules to better understand the role of negotiation mechanisms in the evolution of parental care strategies.

opencc-zeroDec 2022View details →

dryad36/100

Evolutionary origins and patterns of diversification in animal brood parasitism

Brood parasitism involves the exploitation of host parental care rather than the extraction of resources directly from hosts. Although often excluded, we show that brood parasitism fits within existing frameworks of parasitic strategies, and formulate defining criteria, including that the parasites be obligate and the hosts non-eusocial (thereby distinguishing them from social parasites). A systematic literature survey revealed 59 independently derived brood parasitic lineages with most origins (49) in insects, particularly among bees and wasps, and other origins in birds (7) and fish (3). Insects account for over 98% of brood parasitic species, with much of that diversity reflecting ancient (100+ million-year-old) brood parasitic lineages. Brood parasites usually, but not always, evolve from forms that show parental care. In insects, brood parasitism often first evolves through exploitation of a closely related species, following Emery's rule, but this is less typical in birds, which we discuss. We conducted lineage-level comparisons between brood parasitic clades and their sister groups, finding mixed results but an overall neutral to negative effect of brood parasitism on species richness and diversification. Our review of brood parasites reveals many unanswered questions requiring new research including further modelling of the co-evolutionary dynamics of brood parasites and their hosts.

opencc-zeroJun 2023View details →

dryad36/100

Asian koels recognize the host, but not their nests, for brood parasitism

Avian brood parasites depend upon finding host nests to lay their eggs. However, how brood parasites find the nests of their hosts and select the nests for parasitism remains mostly unresolved. Here, we examined how a non-evicting brood parasite, the Asian koel (Eudynamys scolopaceus) selects the hosts' nests to lay their eggs. We provided a novel habitat (nest box, n=100) to the Asian koel and its host, the common myna (Acridotheres tristis), at a field site in central Bangladesh. A total of 99 nests across 59 boxes were used by common mynas, of which 21.2% of these nests were parasitized by the Asian koel. Moreover, non-host species, the Oriental magpie robin (Copsychus saularis) (n=8) and jungle myna (Acridotheres fuscus) (n=6) also built nests in the boxes but none of these nests were parasitized. We found that active boxes were significantly more parasitized than inactive nest boxes. Among the active nest boxes, only common myna nests were parasitized by the Asian koel. We found a strong tendency for Asian koel selecting common myna nests more than the non-host species, Oriental magpie robin and jungle myna. Our results provide robust experimental support for the importance of host activity suggesting that Asian koels actively select occupied boxes. Our study shows support for the host imprinting hypothesis, where the Asian koel uses the host activity as a cue to search for potential nests, and then decide whether to parasitize.

opencc-zeroJul 2023View details →

dryad36/100

Reduced parental brood visit rate in wild zebra finches (Taeniopygia castanotis) is correlated with high maximum daily ambient temperature

As a result of a warming global climate, understanding how organisms adjust their behaviour to environmental thermal conditions has become an increasingly important question in animal biology. Temperature-driven adjustments in parental care are potentially important given the repercussions on offspring size, quality and survival. In 2015 and 2016, we monitored 83 zebra finch (Taeniopygia castanotis) breeding attempts in the wild. We recorded the frequency of parental visits to the nest together with mean maximum ambient temperature experienced between day 7 and 14 of the nestling period. We found that for each increase of 1 °C in the daytime temperature there was a 0.91% reduction in the hourly rate of parental visits, whilst also accounting for other variables such as nestling age, time of season, and wind speed. Our data suggest that nestlings may receive less food under thermally challenging conditions, which is consistent with recent studies that demonstrate offspring are smaller when reared during periods of high temperature. Understanding the behavioural drivers that may contribute to the production of smaller offspring in extreme heat conditions could prove useful to forecast long-term consequences for fitness triggered by climate change.

opencc-zeroJul 2023View details →

dryad36/100

Greater Sage-grouse brood-rearing female habitat data

Habitat selection analyses conducted at an individual level may reveal patterns in selection not apparent when individuals are pooled in population-level approaches. Using GPS transmitters that gather high-resolution location data, we explored fine-scale habitat selection and space use within home ranges of female greater sage-grouse (Centrocercus urophasianus) that raised young (brood-rearing sage-grouse) in an oil and gas development area. To evaluate fine-scale habitat selection of brood-rearing sage-grouse, we used a two-stage approach. First, we developed models for each individual (i.e., individual-level modeling) and evaluated individual-level responses to modified habitats and infrastructure. Second, we averaged individual-level estimates using a bootstrap approach to make population-level inference. The average home range size during brood-rearing, from nest hatch to six weeks, in our study were 0.85 ± 0.21 km2. Individual- and population-level results indicated that brood-rearing females consistently selected for natural vegetation and avoided disturbed surfaces at a fine spatial scale. Our study area included substantial areas of recent (≤10 years) habitat reclamation which females also avoided. Visible power lines consistently led to avoidance behavior. In addition to consistent patterns of habitat selection, our individual models demonstrated variability and contrasting behaviors in how brood-rearing females responded to specific infrastructure features and anthropogenic water bodies. At the population-level, anthropogenic water bodies were avoided, but at the individual-level, the intensity of avoidance was variable among individuals. Individual variability was often explained by the age of the brood-rearing female (first year or adult). First year females were more likely than adults to use habitats close to infrastructure and consistently established home ranges in areas with more surface disturbance and infrastructure when compared to adults. Our results provide new insights into fine scale habitat-selection strategies used by female sage-grouse with broods in an area were oil and gas infrastructure is widespread and cannot be avoided.

opencc-zeroSep 2023View details →

dryad36/100