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179 results for “remnant forest”
Data from: Habitat selection in transformed landscapes and the role of forest remnants and shade coffee in the conservation of resident birds
1. Biodiversity conservation in transformed landscapes is becoming increasingly important. However, most assessments of the value of modified habitats rely heavily on species presence and/or abundance, masking ecological processes such as habitat selection and phenomena like ecological traps, which may render species persistence uncertain. High species richness has been documented in tropical agroforestry systems but comparisons with native habitat remnants generally lack detailed information on species demography and habitat use. 2. We generated a multi-species, multi-measure framework to evaluate the role of habitat selection in the adaptation of species to transformed landscapes, and demonstrate that its use could affect how we value the contribution different land uses make to biodiversity conservation. 3. We analyzed seven years of capture-mark-recapture and observation data for twelve species of resident birds present in native forest remnants and shade coffee plantations in a mega-diverse region. We assessed whether species behaved adaptively by evaluating the correlation between measures of habitat preference (occurrence, abundance, fidelity, inter-seasonal variance and age) and performance (body condition, muscle, primary molt, breeding and juveniles) in forest and coffee, and generated hypotheses about their role in species persistence. 4. We documented adaptive habitat selection for seven species, non-ideal selection for four, and maladaptive selection for one. While many species showed equal-preference and/or equal performance in many traits, in general we found more evidence for birds preferring and/or performing better in forest than coffee, although relationships between our indicators and population adaptation need to be studied further before our proposed framework can be applied to more species and landscapes. 5. While shade coffee can act as a biodiversity-friendly matrix providing complementary or supplementary habitat to a wide range of resident bird species, protecting remnants of native vegetation is still of paramount importance for biodiversity conservation in agricultural landscapes. 28-Aug-2019
FIGURE 2 in Izecksohniella puri sp. n., a new Brazilian cricket species (Ortho ptera: Grylloidea: Phalangopsidae) from Atlantic Forest remnants
FIGURE 2. Izecksohniella puri sp. n. A. male forewings; B. male metanotal gland; C. apex of lateral projections; D. posterior view of male genitalia; E. details of median posterior process, ventral view; F. female nymph. Scale bars: 2 mm (A, B), 5 mm (F).
Fig.3 in Biodiversity survey, ecology and new distribution records of Marchantiophyta in a remnant of Brazilian Atlantic Forest
Fig.3. Graphical representation of substrates colonized by liverwort species in the fragment of dense montane ombrophilous forest studied in the National Park of Boa Nova, Bahia, Brazil.
Fig. 1 in Ticks, rickettsial and erlichial infection in small mammals from Atlantic forest remnants in northeastern Brazil
Fig. 1. Bayesian analysis tree inferred from dsb gene partial sequences of Ehrlichia spp. Numbers at nodes are support values derived from posterior probability. The sequence obtained in this study (Ehrlichia sp. strain Natal) is in bold. Numbers in brackets are GenBank accession numbers. Scale bar: units of expected substitutions per site.
Figures 3–11 in Ants (Hymenoptera: Formicidae) of the Parque Estadual São Camilo, an isolated Atlantic Forest remnant in western Paraná, Brazil
Figures 3–11. Full-face, lateral and dorsal view of the new genera records for the Paraná state and Southern Brazil according to the survey carried out in the Parque Estadual São Camilo, Palotina: (3–5) Carebara brevipilosa; (6–8) Rasopone ferruginea; (9–11) Thaumatomyrmex mutilatus. Scale: 0.2 mm.
Figure 2 in Ants (Hymenoptera: Formicidae) of the Parque Estadual São Camilo, an isolated Atlantic Forest remnant in western Paraná, Brazil
Figure 2. Number of ant species per genus recorded in the Parque Estadual São Camilo, Palotina, PR, Brazil.
Figs. 1–24 in Insect galls of a protected remnant of the Atlantic Forest tableland from Rio de Janeiro State (Brazil)
Figs. 1–24. Insect galls of Guaxindiba. 1. Astronium sp., globose leaf gall; 2. Schinus terebinthifolius, globose stem gall; 3. Xylopia sp., conical leaf gall; 4. Aspidosperma sp., circular leaf gall; 5. Adenocalymma sp., fusiform vein/tendril gall; 6. Amphilophium sp., globose vein gall; 7. Bignonia sp. 1, fusiform vein gall; 8. Bignonia sp. 2, vein swelling; 9. Bignonia sp. 3, vein swelling; 10 and 11. Martinella obovata, 10: globose bud gall; 11: petiole/vein gall; 12 and 13. Pyrostegia sp., 12: conical leaf gall; 13: vein swelling; 14. Bignoniaceae sp. 1, vein swelling; 15. Bignoniaceae sp. 2, tendril/petiole swelling; 16 and 17. Protium heptaphyllum, 16: stem gall; 17: bud gall; 18. Licania sp., globose vein gall; 19. Buchenavia sp., marginal leaf roll; 20. Erythroxylum pauferrense, conical leaf gall; 21. Dodecastigma sp., vein swelling; 22. Manihot sp., cylindrical leaf gall; 23-24. Pachystroma longifolium, 23: marginal leaf roll; 24: conical leaf gall.
Fig. 2 in Spatial variation of dung beetle assemblages associated with forest structure in remnants of southern Brazilian Atlantic Forest
Fig. 2. Principal coordinates analysis (PCoA) of dung beetle species based on Bray–Curtis similarity and environmental variables based on Euclidean distance. The analysis was performed using presence–absence (a), abundance (b) and biomass (c) data of dung beetles, and 15 environmental variables (d). ANH: Anhatomirim Environmental Protection Area; ITA: Permanent Protection Areas of Itapema; PER: Peri Lagoon Municipal Park; RAT: Permanent Protection Areas of Ratones.
Fig. 5 in Value of forest remnants for montane amphibians on the livestock grazed Mount Mbam, Cameroon
Fig. 5. Non-metric dimensional scaling plot of amphibian community structure divided by land use type on Mount Mbam based on visual encounter surveys with equal effort for each land use. The PERMANOVA p-value is shown in the top right corner.
Fig. 4 in Value of forest remnants for montane amphibians on the livestock grazed Mount Mbam, Cameroon
Fig. 4. Montane endemic amphibian species observed in recent surveys of Mount Mbam, West-Region, Cameroon. a) Astylosternus rheophilus, b) Astylosternus montanus, c) Afrixalus aff. fulvovittatus, d) Hyperolius balfouri, e) Hyperolius igbettensis, f) Hyperolius nitidulus, g) Hyperolius concolor, h) Hyperolius cinnamomeoventris, i) Hyperolius tuberculatus, j) Leptopelis nordequatorialis, k) Leptopelis boulengeri, l) Phrynobatrachus steindachneri, m) Xenopus cf. eysoole, n) Hoplobatrachus occipitalis, and o) Sclerophrys maculata.
Fig. 2 in Value of forest remnants for montane amphibians on the livestock grazed Mount Mbam, Cameroon
Fig. 2. Montane habitats of amphibian species observed in recent surveys of Mount Mbam, West-Region, Cameroon: a) gallery forest during the rainy season; b): gallery forest during the dry season after a bushfire; c) savanna area transformed by overgrazing; and d): effects of bushfire started for pasture on the same site during the dry season.
Fig. 1 in Value of forest remnants for montane amphibians on the livestock grazed Mount Mbam, Cameroon
Fig. 1. Maps showing (top) the topography of the Bamenda Highlands, white circle showing Mount Mbam in the West Region of Cameroon; and (bottom) the layout of sample sites on Mount Mbam.
Fig. 2 in Richness of Chrysomelidae (Coleoptera) depends on the area and habitat structure in semideciduous forest remnants
Fig. 2. Rarefaction and extrapolation curve (a) and sample-coverage curve (B) of Chrysomelidae assemblage from remnant forest fragments in Dourados, Mato Grosso do Sul, Brazil. In both figures, solid lines represent observed data, dashed lines represent the extrapolation (900 individuals) and shaded areas the 95% confidence intervals (based on a bootstrap method with 1,000 replications).
Fig. 1 in Richness of Chrysomelidae (Coleoptera) depends on the area and habitat structure in semideciduous forest remnants
Fig. 1. Brazil (light grey), Mato Grosso do Sul State (dark grey) and the regions where the Chrysomelidae assemblage was collected (circles).
Fig. 3 in Richness of Chrysomelidae (Coleoptera) depends on the area and habitat structure in semideciduous forest remnants
Fig. 3. Path diagram showing the direct and indirect effects of the variables on the Chrysomelidae species richness from remnant forest fragments in Dourados, Mato Grosso do Sul, Brazil. The directions of the arrows indicate the direction of effects and the width of arrows is proportional to the effect size. The black arrows indicate significant effects (alpha ≤ 0.05) and the gray arrows indicate insignificant effects.
Figure 1 in Seasonality and bait type driving the diversity of dung beetle (Scarabaeidae: Scarabaeinae) communities in urban remnants of the Atlantic Forest
Figure 1. Partial map of the state of Pernambuco, with emphasis on the remnants of the Atlantic Forest (Green) and the urban area (Pink) located on the outskirts of FURB Jaguarana in the municipality of Paulista and APA Aldeia-Beberibe in the municipality of Camaragibe, PE, Brazil.
Figure 3 in Seasonality and bait type driving the diversity of dung beetle (Scarabaeidae: Scarabaeinae) communities in urban remnants of the Atlantic Forest
Figure 3. Canonical Correspondence Analysis (CCA) with group formations related to separation and types of baits used in the collection of dung beetles at FURB Jaguarana (A) and APA Aldeia-Beberibe (B).
Figure 2 in Seasonality and bait type driving the diversity of dung beetle (Scarabaeidae: Scarabaeinae) communities in urban remnants of the Atlantic Forest
Figure 2. Differences between diversity index values (q0, q1, q2) for different types of baits (feces, carrion, millipedes) in the rainy and dry season at FURB Jaguarana (A) and APA Aldeia-Beberibe (B). Meaningfulness: <0.001'***'; <0.01'**'; <0.05'*'.
Fig. 3 in Feeding ecology of a stream fish assemblage in an Atlantic Forest remnant (Serra do Japi, SP, Brazil)
Fig. 3. Biomass (g.m-2) of the different trophic groups of fish at each collecting site in Serra do Japi (SP) streams.
Fig. 4 in Feeding ecology of a stream fish assemblage in an Atlantic Forest remnant (Serra do Japi, SP, Brazil)
Fig. 4. Canonical Correspondence Analysis (CCA) showing the relationship between the biomass of insectivores (INS), omnivores (ONI), herbivores (HER), detritivores (DET), piscivores (PIS), omnivores-carnivores (O.CAR) and selected environmental variables. Temp = temperature; Veloc = Water Velocity; T.Nit = total nitrogen, Cond= Conductivity.
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OpenNeuro
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