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113 results for “breeding ecology”
Ecological and social constraints combine to promote evolution of non-breeding strategies in clownfish
<p><span>Individuals that forgo their own reproduction in animal societies represent an evolutionary paradox because it is not immediately apparent how natural selection can preserve the genes that underlie non-breeding strategies. Cooperative breeding theory provides a solution to the paradox: non-breeders benefit by helping relatives and/or inheriting breeding positions;<sup> </sup>non-breeders do not disperse to breed elsewhere because of ecological constraints. However, the question of why non-breeders do not contest to breed within their group has rarely been addressed. Here, we use a wild population of clownfish (<i>Amphiprion percula</i>), where non-breeders wait peacefully for years to inherit breeding positions, to show non-breeders will disperse when ecological constraints (risk of mortality during dispersal) are experimentally weakened. In addition, we show non-breeders will contest when social constraints (risk of eviction during contest) are experimentally relaxed. Our results show it is the combination of ecological and social constraints that promote the evolution of non-breeding strategies. The findings highlight parallels between, and potential for fruitful exchange between, cooperative breeding theory and economic bargaining theory: individuals will forgo their own reproduction and wait peacefully to inherit breeding positions (engage in cooperative options) when there are harsh ecological constraints (poor outside options) and harsh social constraints (poor inside options). </span></p>
Data from: Mercury exposure in an endangered seabird: long-term changes and relationships with trophic ecology and breeding success
<p class="MsoNoSpacing">Mercury (Hg) is an environmental contaminant which, at high concentrations, can negatively influence avian physiology and demography. Albatrosses (Diomedeidae) have higher Hg burdens than all other avian families. Here, we measure total Hg (THg) concentrations of body feathers from adult grey-headed albatrosses (<i>Thalassarche chrysostoma</i>) at South Georgia. Specifically, we: (i) analyse temporal trends at South Georgia (1989–2013) and make comparisons with other breeding populations; (ii) identify factors driving variation in THg concentrations; and, (iii) examine relationships with breeding success. Mean ± SD feather THg concentrations were 13.0 ± 8.0 µg g<sup>-1</sup> dw, which represents a threefold increase over the past 25 years at South Georgia and is the highest recorded in the <i>Thalassarche</i> genus. Foraging habitat, inferred from stable isotope ratios of carbon (<i>δ</i><sup>13</sup>C), significantly influenced THg concentrations – feathers moulted in Antarctic waters had far lower THg concentrations than those moulted in subantarctic or subtropical waters. THg concentrations also increased with trophic level (<i>δ</i><sup>15</sup>N), reflecting the biomagnification process. There was limited support for the influence of sex, age and previous breeding outcome on feather THg concentrations. However, in males, Hg exposure was correlated with breeding outcome – failed birds had significantly higher feather THg concentrations than successful birds. These results provide key insights into the drivers and consequences of Hg exposure in this globally important albatross population.</p>
FIGURE 14 in Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species
FIGURE 14. Geographical distributions of all species of the Colocasiomyia cristata group.
High blood parasite infection rate and low fitness suggest ecological traps for pied flycatchers breeding near forest water-bodies
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Data from: Seasonal and annual differences in the foraging ecology of two gull species breeding in sympatry and their use of fishery discards
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Ecological and social constraints combine to promote evolution of non-breeding strategies in clownfish
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Data from: Mercury exposure in an endangered seabird: long-term changes and relationships with trophic ecology and breeding success
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Figure 2 in Breeding ecology of the fulvous parrotbill (Paradoxornis fulvifrons) in Wawushan Nature Reserve, Sichuan, China
Figure 2. Fulvous parrotbill incubating eggs.
Fig. 4 in Breeding Ecology Of The Pied Avocet, Recurvirostra Avosetta (Charadriformes, Recurvirostidae) In Tiffech Lake (Souk Ahras, Northeastern Algeria)
Fig. 4. Seasonal change of clutch size (N 23).
FIGURE 25 in Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species
FIGURE 25. Colocasiomyia pistilicola (Carson & Okada) (♂ and ♀ paratypes). A, Wing of ♀ paratype; B–D, fore (B), mid (C) and hind (D) legs of ♀ paratype; E,F, periphallic organs (E, left side; F, right side) in lateral view; G, phallic organs (lateral view); H, tergites VII and VIII, epiproct and hypoproct (lateral view); I, oviscapt. Scale bars: 0.5 mm in A, 0.1 mm in B–I.
FIGURE 18 in Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species
FIGURE 18. Colocasiomyia vieti Toda, sp. nov. (♂ holotype, ♀ paratype, and puparium from Cuc Phuong, Nho Quan District, Vietnam). A, Periphallic organs (lateral view; inset: surstylus distal portion); B, phallic organs (lateral view); C, ditto (ventral view); D, female terminalia (lateral view); E, puparium (ventral habitus); F, caudal-most portion of puparium (ventral view); G, anterior spiracles of puparium (dorsal view); H, mouth hook; I, cephalopharyngeal skeleton. Scale bars: 0.1 mm in A–D and I, 1.0 mm in E.
FIGURE 2 in Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species
FIGURE 2. Maximum-likelihood (ML) tree of the Colocasiomyia cristata species group (ingroup) and the C. gigantea species group (outgroup), based on DNA sequences of two mitochondrial and six nuclear loci. The tree is rooted by outgroup rooting, and bootstrap percentage (BP) is shown for each internal branch. Within the cristata group, two highly supported (BP = 100) clades (I and II) and three subclades (IIa–c) are recognized.
FIGURE 15 in Phylogeny, taxonomy and flower-breeding ecology of the Colocasiomyia cristata species group (Diptera: Drosophilidae), with descriptions of ten new species
FIGURE 15. (Continued). I, C. sabahana sp. nov. ♂; J, C. sarawakana sp. nov. ♂; K, C. xenalocasiae (Okada) ♂; L, C. diconica (Toda & Okada) ♂; M, C. sumatrana sp. nov. ♂; N, ditto ♀; and O, C. leucocasiae sp. nov. Scale bars: 1 mm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.