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133 results for “altitudinal gradient”
Data for 'Microbial carbon use efficiency along an altitudinal gradient'
<p>This dataset is related to the manuscript “Microbial carbon use efficiency along an altitudinal gradient“ by Kevin Mganga, Outi-Maaria Sietiö, Nele Meyer, Christopher Poeplau, Sylwia Adamczyk, Christina Biasi, Subin Kalu, Matti Räsänen, Per Ambus, Hannu Fritze, Petri Pellikka, and Kristiina Karhu.</p> <p>Corresponding author: Outi-Maaria Sietiö (<a href="mailto:outi-maaria.sietio@helsinki.fi">outi-maaria.sietio@helsinki.fi</a>)</p>
Data from: Seasonality, body size and maturation time in the neotropical grasshopper Sphenarium histrio across an altitudinal gradient
<p>In insects, male mating success and female fecundity usually increase with body size. However, natural selection favors faster maturation, reducing the risk of pre-reproductive death when the reproductive season is short in habitats located at high altitudes or far from the equator. Also, if males that mature earlier than females under these conditions increase their mating opportunities, protandry may evolve in their populations. Nonetheless, since body size is strongly correlated with maturation time in insects, a faster sexual maturation is reached at the expense of having a small body size. We analyzed the differences in the adult body size of males and females of the grasshopper Sphenarium histrio in three sites across an altitudinal gradient in southern Mexico. We also evaluated the possibility of protandry in these sampling sites using a common garden experiment. Male and female grasshoppers collected from low altitude sites in the field and reared in the laboratory were larger than those from a high altitude, suggesting genetic differentiation. Grasshoppers from a high altitude hatched earlier, had a shorter development time, presented fewer instars, and were smaller than grasshoppers from the other sampling sites. Moreover, development time in the three sampling sites was shorter in males than in females, suggesting protandry. Interestingly, the males from the three sites showed similar growth rates, but the females from low and high altitudes, respectively, had the fastest and slowest growth rates. In general, the adaptive value of the evolution of protandry has been focused on males. However, it may be that the growth rates of females in these sites could modify the degree of protandry as a response to their risk of pre-reproductive death and the potential benefits associated with multiple matings.</p> <p>The xlsx file contains the data for all the statistical analyses.</p>
Figure 3 in Macrozoobenthos in an altitudinal gradient in North Patagonian Cautín River (Araucanía Region, Chile)
Figure 3. Correlation matrix for PCA for physical-chemical and biotic parameters for sites studied along the Cautín River.
Figure 1 in Macrozoobenthos in an altitudinal gradient in North Patagonian Cautín River (Araucanía Region, Chile)
Figure 1. Map with sites on the Cautín River included in the present study. Table 1. Geographical location, altitude and classification of the sampling sites on the main course of the Cautín River.
Figure 4 in Macrozoobenthos in an altitudinal gradient in North Patagonian Cautín River (Araucanía Region, Chile)
Figure 4. Results of RDA for physical-chemical and biotic parameters for sites studied along the Cautín River.
Fig. 1 in Trophic network of aquatic macroinvertebrates along an altitudinal gradient in a Neotropical mountain river
Fig. 1. Static models of trophic networks at three sites in the Gaira River representing basal resources (red), intermediate consumer (orange) and top predators (yellow) and the interactions among them. SL, San Lorenzo, upper sector; LV, La Victoria, middle sector; PM, Puerto Mosquito, lower sector; D, dry season; R, rainy season.
Fig. 2 in Trophic network of aquatic macroinvertebrates along an altitudinal gradient in a Neotropical mountain river
Fig. 2. Representation of the standard deviation of vulnerability (SD-V) of the main food sources (FPOM, fine particulate organic matter; CPOM, coarse particulate organic matter; PT, plant tissue) calculated from the ratios recorded in the guts of the macroinvertebrates sampled in the elevational gradient of Gaira River during the dry and rainy seasons. Arrow thickness indicates the vulnerability importance.
Figure 3 in Earthworm community structure along altitudinal gradients on the western slopes of Kopaonik Mountain in Serbia
Figure 3. Cluster analysis (UPGMA) using the Jaccard's index of similarity among the altitudinal transects.
Figure 1 in Earthworm community structure along altitudinal gradients on the western slopes of Kopaonik Mountain in Serbia
Figure 1. The geographic position of the Kopaonik Mountain on the Balkan Peninsula (a) and map of sampling sites (b) (seen localities in Table 1).
Figure 5 in Earthworm community structure along altitudinal gradients on the western slopes of Kopaonik Mountain in Serbia
Figure 5. Nonmetric multidimensional scaling (nMDS) ordination plots based on Bray Curtis dissimilarities of earthworm communities by habitat types.
Figure 8 in Assessment of terrestrial snails' diversity and composition in six forests of west central - Morocco along an altitudinal gradient
Figure 8. Dendogram of Jaccard similarities among habitats (paired group), cophenetic correlation: 0.924 (For site abbreviations, see Table 1).
Figure 7 in Assessment of terrestrial snails' diversity and composition in six forests of west central - Morocco along an altitudinal gradient
Figure 7. Heterogeneity of the forest sites using Whittaker's index (For site abbreviations, see Table 1).
Figure 3 in Assessment of terrestrial snails' diversity and composition in six forests of west central - Morocco along an altitudinal gradient
Figure 3. Correlation analysis between environmental parameters measured at each station. Scale colors and corresponding written values in the plot indicate Pearson's coefficients (For details see text).
Figure 1 in Assessment of terrestrial snails' diversity and composition in six forests of west central - Morocco along an altitudinal gradient
Figure 1. Photographs of the forest sites (ED: Essaouira Dunes; TL: Tlat Lhanchane; Our: Ourika; Azg: Azgour; Tam: Tamadout; Ouk: Oukaimeden). The pictures have been photographed by Guennoun F.Z. (2021).
Fig. 1 in Butterfly (Lepidoptera: Rhopalocera) Distribution Along An Altitudinal Gradient On Mount Tangkuban Parahu, West Java, Indonesia
Fig. 1. Number of butterfly species at different altitudes along the track from the peak of MTP at Upas Crater (2,080 m a.s.l.) to Situ Lembang (1,600 m a.s.l.). P1 to P11 = plot of samplings.
Fig. 2 in Butterfly (Lepidoptera: Rhopalocera) Distribution Along An Altitudinal Gradient On Mount Tangkuban Parahu, West Java, Indonesia
Fig. 2. Frequency of butterfly occurrence along the observation track from Upas Crater to Situ Lembang at MTP during October 2002. 1 = Mycalesis sudra; 2 = Ypthima pandocus; 3 = Pyrameis dejeani; 4 = Faunis canens; 5 = Danaus melaneus; 6 = Pantoporia selenophora; 7 = Neptis mahendra; 8 = Celastrina ceyx; 9 = Cynthia cardui; 10 = Papilio memnon; 11 = Symbrenthia hyplesis; 12 = Celastrina camenae; 13 = Potanthus omaha; 14 = Graphium sarpedon; 15 = Eurema andersonii; 16 = Heliophorus moorei; 17 = Zemeros flegyas; 18 = Chilades pandava; 19 = Jamides abdul; 20 = Abisara savitri; 21 = Lampides boeticus; 22 = Leptosia nina malayana; 23 = Kaniska canace perakana
FIG. 3 in Changes in functional and taxonomic diversity and composition of corticolous lichens in an altitudinal gradient in Colombia
FIG. 3. — Lichen diversity and vegetation richness in the Chocó region of Valle del Cauca, Colombi: A, mean and standard error for alpha lichen diversity along the altitudinal gradient; B, mean and standard error for alpha lichen diversity by locality and microhabitat; C, beta lichen diversity; D, total lichen species richness (observed and rarefied) by locality.
FIG. 1 in Changes in functional and taxonomic diversity and composition of corticolous lichens in an altitudinal gradient in Colombia
FIG. 1. — Map of the department of Valle del Cauca, Colombia, showing the sampling points: Δ, Chucheros; Z, Pericos; •, El Queremal; O, Cerro El Inglés; ^, Pico Pance.
FIG. 5. — A in Changes in functional and taxonomic diversity and composition of corticolous lichens in an altitudinal gradient in Colombia
FIG. 5. — A, non-metric multidimensional scaling for composition of lichen species along the gradient (Stres=0.21); B, detrended correspondence analysis for the lichen functional traits along the gradient. In both graphs there is a clear separation between elevations, showing a gradient of species composition and functional traits along the altitudinal gradient. Locations: z, Alto Pance; +, Cerro El Inglés; X, El Queremal; •, Pericos; , Chucheros.
FIG. 2 in Changes in functional and taxonomic diversity and composition of corticolous lichens in an altitudinal gradient in Colombia
FIG. 2. — Number of species of the lichen families with higher diversity at each locality in the Chocó region of Valle del Cauca, Colombia.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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