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140 results for “reproductive ecology”
Figure 3 in Suborders Acotylea and Cotylea (Polycladida): Study on morphological, ecological and reproductive features of some representative species from Tunisian coasts (Mediterranean)
Figure 3. Ovaries in polyclads A: Section through ovary of Echinoplana celerrima showing a ventral growing zone (grz) and a dorsal germinative zone (gmz), scale bar: 0.01 mm. B: Section through ovary of the cotylean Thysanozoon brocchii showing a ventral germinative zone (gmz) and a dorsal growing zone (grz), scale bar: 0.01 mm.
Figure 1 in Suborders Acotylea and Cotylea (Polycladida): Study on morphological, ecological and reproductive features of some representative species from Tunisian coasts (Mediterranean)
Figure 1. Anterior dorsal region in A: Echinoplana celerrima. See the tentacular (te) and cerebral eyes (ce) forming two paramedian bands, scale bar: 0.5 mm. B: Letoplana mediterranea. See clusters of tentacular (te) and cerebral eyes (ce), scale bar: 0.5 mm. C: Discocelis tigrina. Note the presence of cerebral and tentacular eyes clusters, scale bar: 0.5 mm. D: Imogine mediterranea. Note the presence of two everted nuchal tentacles (arrows), scale bar: 0.5 mm. E: Yungia aurantiaca. See the two marginal tentacles (arrows) and cerebral eyes spots (arrowhead), scale bar: 1 mm. F: Thysanozoon brocchii. Dorsal faces provided with papillae and developed marginal tentacles (arrows), scale bar: 1 mm. G: Prostheceraeus moseleyi. Note the presence of marginal tentacles (arrows) and yellow marginal line, scale bar: mm. H: Prosthiostomum siphunculus. The cerebral eyes (ce) are not included in the semi circle formed by marginal eyes (me), scale bar: 1 mm.
Figure 1 in Reproductive and ecological similarity between Caretta caretta (Linnaeus, 1758) and Eretmochelys imbricata (Linnaeus, 1766) in southern Bahia (Brazil)
Figure 1. Location of the study area on the Brazilian coast. The river mouth corresponds to the Tijuípe River (Bahia, Brazil).
Figure 3 in Reproductive and ecological similarity between Caretta caretta (Linnaeus, 1758) and Eretmochelys imbricata (Linnaeus, 1766) in southern Bahia (Brazil)
Figure 3. Similarity of hatchlings between species. a = Caretta caretta and x = Eretmochelys imbricata. The numbers and red circles highlight the three groups of ecological similarity among hatchlings.
Figure 6 in Reproductive and ecological similarity between Caretta caretta (Linnaeus, 1758) and Eretmochelys imbricata (Linnaeus, 1766) in southern Bahia (Brazil)
Figure 6. Correlation between the hatch response of (A) Eretmochelys imbricata and (B) Caretta caretta and temperature.
Figure 2 in Reproductive and ecological similarity between Caretta caretta (Linnaeus, 1758) and Eretmochelys imbricata (Linnaeus, 1766) in southern Bahia (Brazil)
Figure 2. Correlation between the number of nests observed for the Caretta caretta and Eretmochelys imbricata. The descending line shows the correlation pattern. The number of nests ranged from 0 to 3 for each sample (n=102).
Fig. 5 in Evidence for cryptic diversity in the Neotropical water snake, Helicops angulatus (Linnaeus, 1758) (Dipsadidae, Hydropsini), with comments on its ecology, facultative reproductive mode, and conservation
Fig. 5. Illustration of the holotype of Coluber surinamensis Shaw. From Sebae (1735, Vol. 2, pl. 59, Fig. 2).
Fig. 3 in Evidence for cryptic diversity in the Neotropical water snake, Helicops angulatus (Linnaeus, 1758) (Dipsadidae, Hydropsini), with comments on its ecology, facultative reproductive mode, and conservation
Fig. 3. Best Maximum Likelihood tree based on the data set of concatenated 12S and 16S rDNA, and c-mos sequences. The red clade depicts the Helicops angulatus group. On the left and right sides of a slash (/) are values indicated at nodes for Maximum Likelihood bootstraps (> 75%) and Bayesian Posterior probability values (> 95%), respectively. Green clades represent the paraphyly of Helicops angulatus. The name Helicops pictiventris is currently a junior synonym of H. infrataeniatus, but it appears in the tree exactly as the pertinent sequences appear in the GenBank dataset.
Fig. 1 in Evidence for cryptic diversity in the Neotropical water snake, Helicops angulatus (Linnaeus, 1758) (Dipsadidae, Hydropsini), with comments on its ecology, facultative reproductive mode, and conservation
Fig. 1. The distribution of Helicops angulatus in the Neotropics. Locality data is from the VertNet and GBIF databases, as well as the literature. Diamonds (green oviparous, yellow viviparous): specimens reported in Appendix B of Braz et al. (2016); red stars represent localities where Helicops was sampled for DNA; small black markers: localities from Helicops angulatus map in Nogueira et al. (2019). As currently defined Helicops angulatus occurs in Freshwater Ecoregions: 301 North Andean Pacific Slopes, Rio Atrato; 302 Magdalena, Sinu; 304 South America Caribbean Drainages, Trinidad; 307 Orinoco Llanos; 308 Orinoco Guiana Shield; 311 Guianas; 313 Western Amazon Piedmont; 317 Ucayali, Urubamba Piedmont; 318 Mamore, Madre de Dios Piedmont; 319 Guapore, Itenez; 320 Tapajos, Juruena; 321 Madeira Brazilian Shield; 323 Amazonas Estuary and Coastal Drainages; 324 Tocantins, Araguaia; 325 Parnaiba; and 328 Northeastern Mata Atlantica.
Figure 2 in Reproductive ecology and behaviour of a species of Adenomera (Anura, Leptodactylinae) with endotrophic tadpoles: Systematic implications
Figure 2. The tadpole of Adenomera sp. Above: lateral view of the left side (scale bar: 4.0 mm). Below: detail of the oral apparatus (scale bar: 0.5 mm). Specimen from Uberlândia (MG, Brazil).
Figure 1 in Reproductive ecology and behaviour of a species of Adenomera (Anura, Leptodactylinae) with endotrophic tadpoles: Systematic implications
Figure 1. Rainfall in the municipality of Uberlândia. Lines represent median values over the last 21 years; columns represent values accumulated over the pitfall sampling period (seasons 1999/2000 and 2000/2001). Data from meteorological station of the Universidade Federal de Uberlândia (Campus Santa Mônica).
Figure 4 in Reproductive ecology and behaviour of a species of Adenomera (Anura, Leptodactylinae) with endotrophic tadpoles: Systematic implications
Figure 4. Oscillogram (first row), audiospectrogram (second and fourth rows) and power spectrum (third row) of the advertisement call of Adenomera sp. The first three rows are representations of single notes, the fourth represents a sequence of three notes. Recording files: first column, Adenomspmg2AAGd (17 December 2003, 17:00 h, air 24°C, unvouchered recording); second column, AdenomspmgAAGd (10 December 2003, 20:10 h, air 26°C, unvouchered recording); fourth row, AdenomspmgAAG21 (5 October 1999, 19:40 h, air 21°C, voucher AAG-UFU 2633).
Figure 3 in Reproductive ecology and behaviour of a species of Adenomera (Anura, Leptodactylinae) with endotrophic tadpoles: Systematic implications
Figure 3. Monthly variation in abundance of adults (males and females) and juveniles of Adenomera sp. in pitfall traps in two localities at the municipality of Uberlândia, Minas Gerais, Brazil. Above: Caça e Pesca sample (N572 adults, 32 juveniles). Below: Panga sample (N513 adults and 13 juveniles). Sampling period from October 1999 to October 2001. The monthly samples are not independent, since the trapped specimens were removed from the environment.
Figure 5 in Reproductive ecology and behaviour of a species of Adenomera (Anura, Leptodactylinae) with endotrophic tadpoles: Systematic implications
Figure 5. Territorial call of Adenomera sp. Above left: audiospectrogram of a sequence of three calls. Above right: oscillogram of single note. Below left: audiospectrogram of single note. Below right: power spectrum of single note. Record file AdenomspmgbAAG27, 14 November 2002, 20:30 h, air 23.0°C (unvouchered).
Figure 2 in Ecology and reproductive biology of two species of Aplastodiscus (Anura: Hylidae) in the Atlantic forest, Brazil
Figure 2. Number of courtship displays observed for Aplastodiscus leucopygius (grey columns) and A. arildae (black columns) in the Serra do Japi, municipalty of Jundiai, State of São Paulo, Brazil.
Figure 1 in Ecology and reproductive biology of two species of Aplastodiscus (Anura: Hylidae) in the Atlantic forest, Brazil
Figure 1. (A) Maximum number of males of Aplastodiscus arildae in calling activity in the studied stream; (B) maximum number of males of A. leucopygius in calling activity in three habitats (stream, swamp, and lake) in the Serra do Japi, municipality of Jundiaı´, State of São Paulo, Brazil.
Data from: What ecological factors favor parthenogenesis over sexual reproduction? A study on the facultatively parthenogenetic mayfly Alainites muticus in natural populations
Open the record for dataset details and reuse information.
Figure 5 in Reproductive ecology of a Tibetan frog Nanorana parkeri (Anura: Ranidae)
Figure 5. Relationship between clutch size and egg size.
Reproductive innovation enabled radiation in the deep sea during an ecological crisis
<p>Major ecological transitions are thought to fuel evolutionary radiations, but whether they are contingent on the evolution of certain traits is unclear. We show that the rapid ecological transition of anglerfishes into pelagic habitats during a period of major global warming coincided with the origins of sexual parasitism, in which male anglerfishes temporarily attach or permanently fuse to females to mate. A phylogenomic reconstruction of the evolutionary history of anglerfishes provides a strong inference for the convergent evolution of permanently-fusing deep-sea anglerfishes and their degenerate immune genes. Our results support that sexual parasitism was enabled by the degeneration of adaptive immunity and ancestral sexual size dimorphism. The combination of these traits facilitated the transition of pelagic anglerfishes into novel ecologies available in the deep open oceans after evolving from benthic ancestors. These results show how seemingly unrelated physiological and reproductive traits interact synergistically to drive evolutionary radiation in novel environments.</p>
Figure 7 in Ecological and reproductive parameters of the seabob shrimp, Xiphopenaeus spp. (Heller, 1862) on the southern coast of the state of Espírito Santo, Brazil: potential use of less sampling effort
Figure 7. Cohen's power curve for evaluating the sample size of two samples.
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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.