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298 results for “dominant species”
Figure 22 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 22. Relationship between the body width of ovigerous females and the mean oocyte diameter in Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu, in Malaysia via seven samplings in the period from September 2015 to September 2016.
Figure 10 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 10. Namalycastis rhodochorde, UMT-Ann 2270. (a) Anterior end with everted proboscis, dorsal view. (b) Middle body, dorsal view. (c) Posterior end, dorsal view. (d–l) Posterior views of parapodia in chaetigers 10 (d), 36 (e), 51 (f), 101 (g), 201 (h), 301 (i), 401 (j), 501 (k), and 601 (l). Scale bars: 1 mm.
Figure 23 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 23. Relationship between the body width of ovigerous females and the number of oocytes per 10 chaetigers in Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu, in Malaysia via seven samplings in the period from September 2015 to September 2016.
Figure 20 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 20. Seasonal change in ovigerous rate (%, open circle and solid line) and mean diameter of coelomic oocytes (μm, solid circle with SD bar, and dotted line) in females of Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu, in Malaysia during seven samplings in the period from September 2015 to September 2016.
Figure 9 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 9. Gut contents of Namalycastis sp. (a, b) Plant cells (a) and plant fibres (b) in an individual collected from Station 2 on 27 July 2016. (c, d) Fragments of nereidid parapodia with aciculae (c) and chaetae (d) in another individual collected from Station 5 in 27 July 2016. Scale bars: a, c = 0.1 mm; b= 1 mm; d = 0.05 mm.
Figure 6 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 6. Namalycastis sp., UMT-Ann 1741 (4.1 mm BW, 180 mm BL) collected at Station 2 on 27 November 2015. (a) Sesquigomph spiniger in notochaetae, chaetiger 93. (b) Sesquigomph spiniger in upper neurochaetae, chaetiger 93. (c) Heterogomph spiniger with finely serrated blade in lower neurochaetae, chaetiger 142. (d) Heterogomph spiniger having blade with coarse serrations proximally, chaetiger 111. (e–h) Heterogomph falcigers with finely serrated blade in upper (e, g) and lower (f, h, i) neurochaetae in chaetigers 10 (e, f), 93 (g, h), and 142 (i). (j) Heterogomph falciger with coarsely serrated blade proximally in lower neurochaetae of chaetiger 142. Scale bar 0.1 mm.
Figure 15 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 15. Size–frequency histograms of females (a), males (b), and individuals with sex undetermined (c) of Namalycastis sp. based on pooled data from all seven collections from September 2015 to September 2016 at six sites in Setiu Wetlands, Terengganu, in Malaysia (Table 1). n: total number of samples.
Figure 18 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 18. Seasonal change in ratio of females, males, adults with sex undetermined and juveniles in pooled samples of Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu, in Malaysia via seven samplings in the period from September 2015 to September 2016. The number at the top of each bar is the number of specimens examined.
Figure 17 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 17. Seasonal change in size–frequency histogram of pooled samples of Namalycastis sp. collected from six sites in Setiu Wetlands, Terengganu, in Malaysia from seven samplings in the period from September 2015 to September 2016.
Figure 5 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 5. Living (a, b) and preserved (c–i) specimens of Namalycastis sp. (a) Pale purple worm collected from Station 2 on 28 March 2016. (b) Greenish dark-brown worm collected from Station 5 on 28 September 2016. (c) Specimen with dark-brown pigmentation throughout, collected from Station 1 on 30 September 2015. (d) Whitish specimen, with anterior-most segments light brown, collected from Station 3 on 18 May 2016. (e–g) Light brown specimen (UMT-Ann 1712) collected at Station 2 on 30 September 2015, dorsal view: (e) Anterior end with everted proboscis; (f) Middle body; (g) Posterior end. (h) Anterior end of dark brown specimen, with everted proboscis (UMT-Ann 1707), collected from Station 1 on 30 September 2015, dorsal view. (i) Anterior end of whitish-cream specimen with brownish pigmentation in prostomium and a few anterior-most segments (UMT-Ann 1724), collected from Station 1 on 27 November 2015, dorsal view. Scale bars: c, d = 10 mm; e–i = 1 mm.
Figure 3 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 3. Coelomic cells in gametogenesis of Namalycastis sp. (a) Oocyte of a female individual collected from Station 6 on 27 November 2015. (b) Round cluster of spermatogonia or spermatocytes of a male individual collected from Station 4 on 28 September 2016. Scale bars: 0.05 mm.
Figure 2 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 2. Map showing seven sampling sites and distributions of three nereidid species along the lagoon of Setiu Wetlands, Terengganu, on the eastern coast of Peninsular Malaysia. M, Station M (Muara Kuala Setiu); 1, Station 1 (Beting Lintang); 2, Station 2 (in front of Pulau Tebing Tinggi); 3, Station 3 (in front of Pulau Che Hing); 4, Station 4 (in front of Pulau Gemia); 5, Station 5 (northern stream in front of Pulau Awang Jin); 6, Station 6 (southern stream in front of Pulau Awang Jin). Filled circles, Namalycastis sp.; open circle, N. rhodochorde; filled triangles, Perinereis aibuhitensis. Arrow indicates the single opening of Setiu Wetlands.
Figure 14 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 14. Perinereis aibuhitensis (UMT-Ann 2191). (a) Anterior end with everted proboscis, dorsal view. (b) Middle body, dorsal view. (c) Posterior end, dorsal view. (d–f) Posterior views of parapodia in chaetigers 25 (d), 65 (e), and 104 (f). (g) Homogomph spiniger in notochaetae, chaetiger 25. (h) Homogomph spiniger in upper neurochaetae, chaetiger 65. (i) Heterogomph spiniger in lower neurochaetae, chaetiger 65. (j) Heterogomph falciger in upper neurochaetae, chaetiger 25. (k) Heterogomph falciger in lower neurochaetae, chaetiger 65. Scale bars: a–c = 1 mm; d–f = 0.2 mm; g–i = 0.1 mm; j, k = 0.05 mm.
Figure 12 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 12. Namalycastis rhodochorde, UMT-Ann 2270. Chaetae in chaetiger 51. (a) Sesquigomph spiniger in upper neurochaetae. (b) Heterogomph falciger in upper neurochaetae. (c) Heterogomph falciger in lower neurochaetae. Scale bars: 0.1 mm.
Figure 11 in Nereidid polychaetes (Annelida) inhabiting the inside of decaying fronds of the mangrove palm Nypa fruticans in a tropical estuary in Malaysia, with special reference to the life history of the dominant species, Namalycastis sp.
Figure 11. Namalycastis rhodochorde, UMT-Ann 2270. Parapodium of chaetiger 101, posterior view. Scale bar: 0.2 mm.
Tradeoffs between leaf cooling and hydraulic safety in a dominant arid land riparian tree species
<p>Leaf carbon gain optimization in hot environments requires balancing leaf thermoregulation with avoiding excessive water loss via transpiration and hydraulic failure. The tradeoffs between leaf thermoregulation and transpirational water loss can determine the ecological consequences of heat waves that are increasing in frequency and intensity. We evaluated leaf thermoregulation strategies in warm (>40 °C maximum summer temperature) and cool-adapted (<40 °C maximum summer temperature) genotypes of the foundation tree species, <em>Populus fremontii</em> using a common garden near the mid-elevational point of its distribution. We measured leaf temperatures and assessed three modes of leaf thermoregulation: leaf morphology, midday canopy stomatal conductance, and stomatal sensitivity to vapor pressure deficit. Data were used to parameterize a leaf energy balance model to estimate contrasts in midday leaf temperature in warm- and cool-adapted genotypes. Warm-adapted genotypes had 39% smaller leaves and 38% higher midday stomatal conductance, reflecting a 3.8 °C cooler mean leaf temperature than cool adapted genotypes. Leaf temperatures modeled over the warmest months were on average 1.1 °C cooler in warm- relative to cool-adapted genotypes. Results show that plants adapted to warm environments are predisposed to tightly regulate leaf temperatures during heat waves, potentially at an increased risk of hydraulic failure. </p>
Predator cannibalism can shift prey community composition toward dominance by small prey species
<p><span>Cannibalism among predators is a key intraspecific interaction affecting their density and foraging behaviour, eventually modifying the strength of predation on heterospecific prey. Interestingly, previous studies showed that cannibalism among predators can increase or reduce predation on heterospecific prey; however we know less about the factors that lead to these outcomes. Using a simple pond community consisting of <em>Hynobius retardatus</em> salamander larvae and their associated prey, I report empirical evidence that cannibalism among predators can increase predation on large heterospecific prey but reduce that on small heterospecific prey. In a field-enclosure experiment in which I manipulated the occurrence of salamander cannibalism, I found that salamander cannibalism increased predation on frog tadpoles but reduced that on aquatic insects simultaneously. The contrasting effects are most likely to be explained by prey body size. In the study system, frog tadpoles were too large for non-cannibal salamanders to consume, while aquatic insects were within the non-cannibals' consumable prey size range. However, when cannibalism occurred, a few individuals that succeeded in cannibalising reached large enough size to consume frog tadpoles. Consequently, although cannibalism among salamanders reduced their density, salamander cannibalism increased predation on large prey frog tadpoles. Meanwhile, salamander cannibalism reduced predation on small prey aquatic insects probably because of a density reduction of non-cannibals primarily consuming aquatic insects. Body size is often correlated with various ecological traits, for instance, diet width, consumption and excretion rates, and is thus considered as a good indicator of species' effects on ecosystem function. All this considered, cannibalism among predators could eventually affect ecosystem function by shifting the size composition of the prey community. </span></p>
FIGURE 2 in A new edible species of Lactifluus (Russulaceae) from Shorea robusta dominated forests in tropical India
FIGURE 2. Lactifluus tropicalis (CAL 1873, holotype). a–c. Fresh and dissected basidiomata in the field and basecamp, d. Transverse section through pileipellis showing elements, e. Transverse section through lamellae showing basidia, f–j. Transverse section through lamellae showing pleuropseudocystidia, k & l. SEM micrograph of basidiospores. Scale bars: d= 20 μm, e−j= 10 μm, k & l= 2 μm.
FIGURE 1 in A new edible species of Lactifluus (Russulaceae) from Shorea robusta dominated forests in tropical India
FIGURE 1. Phylogram of Lactifluus tropicalis and their allied species based on a Maximum Likelihood and Bayesian analyses of nrITS, nrLSU and rpb2 gene sequences. Support values in either the Maximum Likelihood [ML Bootstrap percentage (MLBs)] or Bayesian [Posterior probabilities values (BPP)] analyses are indicated. MLBs ≥70% are shown on the left of "/" and BPP ≥0.95 are shown on the right above or below the branches at nodes. Lactifluus tropicalis is placed in bold red font to highlight its phylogenetic positions in the tree.
FIGURE 3 in A new edible species of Lactifluus (Russulaceae) from Shorea robusta dominated forests in tropical India
FIGURE 3. Lactifluus tropicalis (CAL 1873, holotype). a. Pleuropseudocystidia, b. Basidiospores, c. Basidia, d. Pileipellis. Scale bars: a, c, d= 10 µm, b= 2 µm.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.