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484 results for “reproductive biology”
Figs. 23–30. Female reproductive organs. 23–24 in Spermatophores and Spermatophore Producing Internal Organs of Cleridae (Coleoptera: Clerinae): their Biological and Phylogenetic Implications
Figs. 23–30. Female reproductive organs. 23–24) Phlogistomorph croesus (Blackburn); 24) spermatophore; 25) Phlogistus imperialis (Gorham) spermatophore; 26) Zenithicola funestus Chevrolat; 27) Trogodendron fasciculatum (Schreiber); 28) Scrobiger splendidus (Newman); 29) Balcus signatus Broun; 30) Dieropsis quadriplagiata (Gorham).
Figs. 16–22. Female reproductive organs. 16–17 in Spermatophores and Spermatophore Producing Internal Organs of Cleridae (Coleoptera: Clerinae): their Biological and Phylogenetic Implications
Figs. 16–22. Female reproductive organs. 16–17) Trichodes oregonensis Barr; 16) spermatophore in situ; 17) spermatophore; 18) Trichodes ornatus (Say); 19) spermatophore; 20–21) Aulicus edwardsii (Horn); 21) spermatophore; 22) Opilo domesticus (Sturm).
Figs. 1–6. Male reproductive organs. 1–3 in Spermatophores and Spermatophore Producing Internal Organs of Cleridae (Coleoptera: Clerinae): their Biological and Phylogenetic Implications
Figs. 1–6. Male reproductive organs. 1–3) Trichodes ornatus (Say); 2) spermatophore glands; 3) cross-section of inner chamber of spermatophore gland; 4) Aulicus edwardsii (Horn);
Figure 2 in Seaweed reproductive biology: environmental and genetic controls
Figure 2: Synthetic overview of gamete formation, fusion and meiosis in Chlamydomonas with indications of the genes involved and their conservation in other algae (black, highly conserved; blue, somewhat conserved; red, not conserved).
Figure 1 in Seaweed reproductive biology: environmental and genetic controls
Figure 1: Schematic representation of algal life cycles. Diploid and haploid stages are marked by white and black arrows, respectively. (A) Brown algal life cycle. Fucales are characterized by a diplontic life cycle. Meiosis in the reproductive tissue is immediately followed by gametogenesis and syngamy producing a diploid zygote. Most algae such as Dictyota, Scytosiphon and Laminaria exhibit a diplohaplontic life cycle where a haploid gametophyte alternates with a diploid sporophyte. Here following meiosis the resulting spore develops into a multicellular organism. Both haploid and diploid phases may be of identical morphology (isomorphic) (Dictyota), or the two phases may develop differently (heteromorphic) with either the gametophyte (Laminaria) or the sporophyte (Scytosiphon) being microscopic. Many unicellular algae (Chlamydomonas) are characterized by a haplontic life cycle where the formation of a zygote is immediately followed by a meiotic division. (B) Simplified diplohaplontic life cycle of Ectocarpus siliculosus. Meiosis (a) takes place in the sporophyte (diploid) to produce haploid spores. First cell division in germinating spores is asymmetric (b) and they grow into multicellular gametophytes. Gametophytes produce morphologically identical but physiologically differentiated male and female gametes (c), which fuse to form a zygote. After a symmetrical first cell division (d) the zygote grows into a diploid sporophyte. Alternatively, gametes that do not meet a partner of the opposite sex grow into diploid parthenosporophytes by means of parthenogenesis combined with endoreduplication (e) or into a haploid parthenosporophyte (f). The latter produces meiospores via a nonreductive apomeiotic event (g). (C) Life cycle of the red alga Chondrus showing three distinct stages: the gametophyte, the sporophyte and the carposporophyte, which develops parasitically on the gametophyte after fertilization. Loops connecting a generation with itself denote asexual reproduction mediated by vegetative reproduction (e.g. fragmentation, propagule formation) (Fucus, Dictyota), the formation of asexual spores (mitospores) (Dictyota, Ectocarpus, Laminaria), mitosis (Chlamydomonas) or parthenogenetic development of unfertilized (female) gametes (Scytosiphon, Laminaria, Ectocarpus). Figure adapted from Bogaert et al. (2013).
Figure 2 in Reproductive biology of direct developing and threatened frog Adelophryne maranguapensis (Anura, Eleutherodactylidae) reveals a cryptic reproductive mode for anurans and the first record of parental care for the genus
Figure 2. Climatic parameters in Serra de Maranguape between the months of April 2010 and April 2012. Precipitation (columns); maximum relative humidity of air (blue line), minimum relative humidity of air (blue dashes), maximum temperature (red line), minimum temperature (red dashes), musical note (occurrence of vocalisations), egg (presence of egg masses); * without field work.
Figure 6 in Population dynamics and reproductive biology of the sandhopper Atlantorchestoidea brasiliensis (Amphipoda: Talitridae) of a sandy beach in Southwestern Atlantic Coast
Figure 6. Atlantorchestoidea brasiliensis: relationship of length to number of eggs per marsupium at Sossego Beach, Rio de Janeiro State, Brazil.
Figure 5 in Population dynamics and reproductive biology of the sandhopper Atlantorchestoidea brasiliensis (Amphipoda: Talitridae) of a sandy beach in Southwestern Atlantic Coast
Figure 5. Fecundity of Atlantorchestoidea brasiliensis from Sossego Beach, Rio de Janeiro State, Brazil.
Figure 4 in Population dynamics and reproductive biology of the sandhopper Atlantorchestoidea brasiliensis (Amphipoda: Talitridae) of a sandy beach in Southwestern Atlantic Coast
Figure 4. Sexual maturity (L50%) of Atlantorchestoidea brasiliensis males and females from Sossego Beach, Rio de Janeiro State, Brazil.
Figure 3 in Population dynamics and reproductive biology of the sandhopper Atlantorchestoidea brasiliensis (Amphipoda: Talitridae) of a sandy beach in Southwestern Atlantic Coast
Figure 3. Modal progression analysis of Atlantorchestoidea brasiliensis from Sossego Beach (a) females, (b) males.
Figure 2 in Population dynamics and reproductive biology of the sandhopper Atlantorchestoidea brasiliensis (Amphipoda: Talitridae) of a sandy beach in Southwestern Atlantic Coast
Figure 2. Atlantorchestoidea brasiliensis: (a) male, (b) female, and (c) ovigerous female. Scale bar: 5 mm.
Supplementary material 3 from: Astuti G, Roma-Marzio F, D'Antraccoli M, Bedini G, Carta A, Sebastiani F, Bruschi P, Peruzzi L (2017) Conservation biology of the last Italian population of Cistus laurifolius (Cistaceae): demographic structure, reproductive success and population genetics. Nature Conservation 22: 169-190. https://doi.org/10.3897/natureconservation.22.19809
Supplementary material 3 from: Astuti G, Roma-Marzio F, D'Antraccoli M, Bedini G, Carta A, Sebastiani F, Bruschi P, Peruzzi L (2017) Conservation biology of the last Italian population of Cistus laurifolius (Cistaceae): demographic structure, reproductive success and population genetics. Nature Conservation 22: 169-190. https://doi.org/10.3897/natureconservation.22.19809
Supplementary material 2 from: Astuti G, Roma-Marzio F, D'Antraccoli M, Bedini G, Carta A, Sebastiani F, Bruschi P, Peruzzi L (2017) Conservation biology of the last Italian population of Cistus laurifolius (Cistaceae): demographic structure, reproductive success and population genetics. Nature Conservation 22: 169-190. https://doi.org/10.3897/natureconservation.22.19809
Supplementary material 2 from: Astuti G, Roma-Marzio F, D'Antraccoli M, Bedini G, Carta A, Sebastiani F, Bruschi P, Peruzzi L (2017) Conservation biology of the last Italian population of Cistus laurifolius (Cistaceae): demographic structure, reproductive success and population genetics. Nature Conservation 22: 169-190. https://doi.org/10.3897/natureconservation.22.19809
Supplementary material 1 from: Astuti G, Roma-Marzio F, D'Antraccoli M, Bedini G, Carta A, Sebastiani F, Bruschi P, Peruzzi L (2017) Conservation biology of the last Italian population of Cistus laurifolius (Cistaceae): demographic structure, reproductive success and population genetics. Nature Conservation 22: 169-190. https://doi.org/10.3897/natureconservation.22.19809
Supplementary material 1 from: Astuti G, Roma-Marzio F, D'Antraccoli M, Bedini G, Carta A, Sebastiani F, Bruschi P, Peruzzi L (2017) Conservation biology of the last Italian population of Cistus laurifolius (Cistaceae): demographic structure, reproductive success and population genetics. Nature Conservation 22: 169-190. https://doi.org/10.3897/natureconservation.22.19809
Figs. 6–7. Chelonarium signatum. 6 in Redescription of Chelonarium signatum Dalman, 1824, with Notes on its Reproductive Biology and Occurrence in Paraguay (Coleoptera: Byrrhoidea: Chelonariidae)
Figs. 6–7. Chelonarium signatum. 6) Ovipositor: A) Dorsal, B) Lateral, C) Ventral. 7) Tip of ovipositor: A) Dorsal, showing anteriorly-directed spurs on the coxites, B) Ventral, showing attachment of accessory sclerite to coxites.
Figs. 4–5. Chelonarium signatum. 4 in Redescription of Chelonarium signatum Dalman, 1824, with Notes on its Reproductive Biology and Occurrence in Paraguay (Coleoptera: Byrrhoidea: Chelonariidae)
Figs. 4–5. Chelonarium signatum. 4) Aedeagus: A) Dorsal, B) Lateral, C) Ventral. 5) Paramere apices showing setation.
Figs. 1–3. Chelonarium signatum. 1 in Redescription of Chelonarium signatum Dalman, 1824, with Notes on its Reproductive Biology and Occurrence in Paraguay (Coleoptera: Byrrhoidea: Chelonariidae)
Figs. 1–3. Chelonarium signatum. 1) Habitus: A) Dorsal, B) Lateral, C) Ventral. 2) Head, extended; 3) Head: A) Right ventrolateral view, B) Ventral view.
Fig. 8. Chelonarium signatum, lectotype. A in Redescription of Chelonarium signatum Dalman, 1824, with Notes on its Reproductive Biology and Occurrence in Paraguay (Coleoptera: Byrrhoidea: Chelonariidae)
Fig. 8. Chelonarium signatum, lectotype. A) Dorsal, B) Ventral, C) Labels. Photographs by Johannes Bergsten (©2020 Naturhistoriska riksmuseet). Original photos cropped, light levels and contrast adjusted. Made available by the Swedish Museum of Natural History under Creative Commons Attribution 4.0 International Public License, CC-BY 4.0.
Figure 4 in Effects of nutritional quality on the reproductive biology of Archegozetes longisetosus (Actinotrichida, Oribatida, Trhypochthoniidae)
Figure 4. Comparison of the normalized number of adults (N'= reproductive output) and day until adult eclosion (d'= developmental time) of Archegozetes longisetosus. Higher N' and d' indicate more reproductive output and longer developmental time, respectively. Circles represent means, error bars indicate standard errors in both directions. Blood meals was excluded from this analysis.
Figure 3 in Effects of nutritional quality on the reproductive biology of Archegozetes longisetosus (Actinotrichida, Oribatida, Trhypochthoniidae)
Figure 3. Mean dry weight of Archegozetes longisetosus proto- (A), deuto- (B), and tritonymphs (C), as well as adults (D), kept on different resources. Different letters indicate significant differences (P <0.05) of pairwise Mann-Whitney-U tests within one ontogenetic instar. Circles represent means, error bars indicate standard errors.
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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.