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370 results for “seasonal forest”
Figure 1 in Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado
Figure 1. Geographic location of Parque Estadual Altamiro de Moura Pacheco in the state of Goiás, central Brazil. Sampling sites 2-8, 11 and 13 are currently flooded by the João Leite Reservoir.
Figure 6 in Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado
Figure 6. Species of reptiles recorded in Parque Estadual Altamiro de Moura Pacheco, state of Goiás, central Brazil: (A) Eunectes murinus, (B) Spilotes pullatus pullatus, (C) Apostolepis albicollares, (D) Atractus albuquerquei, (E) Erythrolamprus reginae macrosoma, (F) Hydrodynastes gigas, (G) Oxyrhopus petolarius digitalis, (H) Oxyrhopus guibei, (I) Philodryas olfersii, (J) Sibynomorphus mikanii mikanii, (K) Taeniophallus occipitalis, (L) Xenodon merremii, (M) Bothrops moojeni, (N) Crotalus durissus collilineatus (Photo "F" by D. Lopes).
Figure 2 in Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado
Figure 2. Species of anurans recorded in Parque Estadual Altamiro de Moura Pacheco, state of Goiás, central Brazil: (A) Rhinella sebbeni, (B) Rhinella diptycha, (C) Barycholos ternetzi, (D) Proceratophrys goyana, (E) Odontophrynus cultripes, (F) Boana albopunctata, (G) Boana lundii, (H) Boana paranaiba, (I) Boana raniceps, (J) Dendropsophus cruzi, (K) Dendropsophus minutus, (L) Dendropsophus nanus, (M) Dendropsophus rubicundulus, (N) Pseudis bolbodactyla, (O) Scinax constrictus.
Figure 4 in Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado
Figure 4. Species of anurans recorded in Parque Estadual Altamiro de Moura Pacheco, state of Goiás, central Brazil: (A) Physalaemus nattereri, (B) Pseudopaludicola facureae, (C) Chiasmocleis albopunctata, (D) Elachistocleis cesarii, (E) Dermatonotus muelleri.
Figure 5 in Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado
Figure 5. Species of reptiles recorded in Parque Estadual Altamiro de Moura Pacheco, state of Goiás, central Brazil: (A) Chelonoidis carbonarius, (B) Phrynops geoffroanus, (C) Hemidactylus mabouia, (D) Copeoglossum nigropunctatum, (E) Notomabuya frenata, (F) Norops brasiliensis, (G) Tropidurus oreadicus, (H) Tropidurus torquatus, (I) Ophiodes aff. striatus, (J) Ameiva ameiva ameiva, (K) Salvator merianae, (L) Amphisbaena alba, (M) Amphisbaena anaemariae, (N) Boa constrictor amarali, (O) Epicrates crassus.
Figure 3 in Herpetofauna of Parque Estadual Altamiro de Moura Pacheco: one of the last remnants of seasonal forest in the core region of the Brazilian Cerrado
Figure 3. Species of anurans recorded in Parque Estadual Altamiro de Moura Pacheco, state of Goiás, central Brazil: (A) Scinax fuscomarginatus, (B) Scinax aff. fuscovarius, (C) Trachycephalus typhonius, (D) Pithecopus hypochondrialis, (E) Adenomera aff. hylaedactyla, (F) Leptodactylus fuscus, (G) Leptodactylus labyrinthicus, (H) Leptodactylus latrans, (I) Leptodactylus mystaceus, (J) Leptodactylus mystacinus, (K) Leptodactylus podicipinus, (L) Leptodactylus gr. melanonotus, (M) Physalaemus atim, (N) Physalaemus centralis, (O) Physalaemus cuvieri.
Figure 1 in Muscidae (Diptera) of medico-legal importance associated with ephemeral organic substrates in seasonally dry tropical forests
Figure 1. Location of sample sites along the seasonally dry tropical forest (Caatinga) in Northeastern Brazil. (A) Petrolina; (B) Betânia; (C) Afogados da Ingazeira; (D) Buíque; (E) Boqueirão.
Figure 3 in Muscidae (Diptera) of medico-legal importance associated with ephemeral organic substrates in seasonally dry tropical forests
Figure 3. Cluster analysis for the similarity between muscid assemblages, according to the type of bait.
Figure 2 in Muscidae (Diptera) of medico-legal importance associated with ephemeral organic substrates in seasonally dry tropical forests
Figure 2. Sex ratio (female/male) of muscids collected in SDTF's fragments in Brazil, according to the type of bait (A) and species (B).
Figure 3 in Distribution of gall-inducing arthropods in areas of deciduous seasonal forest of Parque da Sapucaia (Montes Claros, MG, Brazil): effects of anthropization, vegetation structure and seasonality
Figure 3. Morphological characterization of the galls induced by arthropods in areas of deciduous seasonal forest of Parque da Sapucaia, Montes Claros, MG, Brazil: (A, B, C) Fabaceae – Dalbergia sp.; (D) undetermined; (E, F, G) Loganiaceae – Sthrychnos sp.; (H) Opiliaceae – Agonandra brasiliensis; (I) Sapindaceae – Serjania sp.; (J) Vitaceae – Cissus sp.; (K) Undetermined family 1; and (L) Undetermined family 2.
Figure 2 in Distribution of gall-inducing arthropods in areas of deciduous seasonal forest of Parque da Sapucaia (Montes Claros, MG, Brazil): effects of anthropization, vegetation structure and seasonality
Figure 2. Morphological characterization of the galls induced by arthropods in areas of deciduous seasonal forest of Parque da Sapucaia (Montes Claros, MG, Brazil): (A) Anacardiaceae – Myracrodruon urundeuva; (B) Schinopsis brasiliensis; (C, D) Asteraceae – Vernonanthura brasiliana; (E) Bignoniaceae undetermined; (F, G) Cannabaceae – Celtis brasiliensis; (H) Combretaceae – Combretum leprosum; (I) Combretum duarteanum; (J) Terminalia phaeocarpa; (K) Cucurbitaceae undetermined; (L) Fabaceae – Anadenanthera colubrine; (M, N) Apuleia leiocarpa; (O) Bauhinia pulchela; and (P) Bauhinia rufa.
Figure 1 in Distribution of gall-inducing arthropods in areas of deciduous seasonal forest of Parque da Sapucaia (Montes Claros, MG, Brazil): effects of anthropization, vegetation structure and seasonality
Figure 1. Location and characterization of the study area. (A) Location of Parque da Sapucaia (Montes Claros, MG, Brazil), between the urban area of Montes Claros and Parque Estadual da Lapa Grande. Source: Google Earth.(B) Characterization of the vegetation in the rainy season.(C) Characterization of the vegetation in the dry season.
Figure 6 in Distribution of gall-inducing arthropods in areas of deciduous seasonal forest of Parque da Sapucaia (Montes Claros, MG, Brazil): effects of anthropization, vegetation structure and seasonality
Figure 6. Comparison of the richness of gall morphotypes between different sampling seasons in the deciduous seasonal forest of Parque da Sapucaia (Montes Claros, MG, Brazil). (A) Comparison of the richness of gall morphotypes between the rainy and dry seasons. (B) Richness of gall morphotypes in the preserved and anthropized plots during the rainy and dry seasons.
Aboveground net primary productivity in regenerating seasonally dry tropical forest: contributions of rainfall, forest age, and soil
<p>Identifying factors controlling forest productivity is critical to understanding forest-climate change feedbacks, modeling vegetation dynamics, and carbon finance schemes. However, little research has focused on productivity in regenerating tropical forest which are expanding in their fraction of global area have an order of magnitude larger carbon uptake rates relative to older forest.</p> <p>We examined aboveground net primary productivity (ANPP) and its components (wood production and litterfall) over ten years in forest plots that vary in successional age, soil characteristics, and species composition using band dendrometers and litterfall traps in regenerating seasonally dry tropical forests in northwestern Costa Rica.</p> <p>We show that the components of ANPP are differentially driven by age and annual rainfall and that local soil variation is important. Total ANPP was explained by a combination of age, annual rainfall, and soil variation. Wood production comprised 35% of ANPP on average across sites and years, and was explained by annual rainfall but not forest age. Conversely, litterfall increased with forest age and soil fertility yet was not affected by annual rainfall. In this region, edaphic variability is highly correlated with plant community composition. Thus, variation in ecosystem processes explained by soil may also be partially explained by species composition.</p> <p>These results suggest that future changes in annual rainfall can alter the secondary forest carbon sink, but that this effect will be buffered by the litterfall flux which varies little among years. In determining the long-term strength of the secondary forest carbon sink, both rainfall and forest age will be critical variables to track. We also conclude that a detailed understanding of local site variation in soils and plant communities may be required to accurately predict the impact of changing rainfall on forest carbon uptake.</p> <p>Synthesis We show that in seasonally dry tropical forests, annual rainfall has a positive relationship with the growth of aboveground woody tissues of trees and that droughts lead to significant reductions in aboveground productivity. These results provide evidence for climate change – carbon cycle feedbacks in the seasonal tropics and highlight the value of longitudinal data on forest regeneration.</p>
A new, disjunct species of Bahiana (Euphorbiaceae-Acalyphoideae): Phytogeographic connections between the seasonally dry tropical forests of Peru and Brazil, and a review of spinescence in the family
<p><em>Bahiana</em> is expanded from 1 to 2 species with the description of <em>B. occidentalis</em> K. Wurdack, <strong>sp. nov.</strong> as a new endemic of the seasonally dry tropical forests (SDTFs) of Peru. The disjunct distribution of Bahiana with populations of <em>B. occidentalis</em> on opposite sides of the Andes in northwestern Peru (Tumbes, San Martín) and B. pyriformis in eastern Brazil (Bahia) adds to the phytogeographic links among the widely scattered New World SDTFs. Although <em>B. occidentalis</em> remains imperfectly known due to lack of flowering collections, molecular phylogenetic results from four loci (plastid <em>matK</em>, <em>rbcL</em>, and <em>trnL-F</em>; and nuclear ITS) unite the two species as does gross vegetative morphology, notably their spinose stipules, and androecial structure. Spinescence in Euphorbiaceae was surveyed and found on vegetative organs in 25 genera, which mostly have modified sharp branch tips. Among New World taxa, spines that originate from stipule modifications only occur in <em>Bahiana</em> and <em>Acidocroton</em>, while the intrastipular spines of <em>Philyra</em> are of uncertain homologies.</p>
Data from: Acoustic indices estimate breeding bird species richness with daily and seasonally variable effectiveness in lowland temperate Białowieża forest
<p><span>Biodiversity monitoring is important to follow temporal changes of the environment. We examined whether acoustic indices can be used as a rapid and easy-to-apply tool for bird biodiversity estimation in one of the least changed European lowland forests – the Białowieża Forest.</span></p> <p><span>We collected soundscape recordings in early and late spring at 84 randomly chosen recording points. At each recording point, we analysed 72 1-min sound samples to evaluate how well acoustic indices predict bird species richness from the perspective of a single sound sample, single survey, and recording point, and how they follow the daily pattern of singing activity. For each 1-min sound sample, we prepared a list of vocalizing bird species and calculated three acoustic indices: Bioacoustic Index (BI), Acoustic Complexity Index (ACI), and Acoustic Diversity Index (ADI)</span>.</p> <p><span>We found that from the perspective of a single 1-min sound sample, BI best predicts the bird species richness, independently of time in the season but variably across the day, while ACI and ADI showed weaker and seasonally and daily variable dependency. The correlation between each index and the number of bird species was stronger in the early survey than in the late survey. All acoustic indices followed daily bird activity patterns, yet they provided greater values before the peak of the species richness estimated by manual spectrogram scanning and listening to recordings.</span></p> <p><span>We showed that acoustic indices correlate moderately to strongly with the bird species richness obtained by manual spectrogram scanning and listening to recordings by humans. Therefore, acoustic indices can be used as a tool for rapid estimation of bird biodiversity in temperate forests. However, daily and seasonal variation in effectiveness of acoustic indices should be taken into account in the analysis.</span></p>
Data from: Nasty neighbours in the Neotropics: seasonal variation in physical and vocal aggressions in a montane forest songbird, the Grey-browed Brushfinch
<p>Many territorial animals exhibit differences in their responses against intruders based on the level of threat that they pose. The dear-enemy and the nasty-neighbour effects refer to situations in which territorial aggressions are stronger against stranger and neighbour individuals, respectively. Using playback experiments during pre-breeding and post-breeding seasons in a songbird from Neotropical montane forests (Grey-browed Brushfinch, <em>Arremon</em> <em>assimilis</em>), we found that males exhibit the nasty-neighbour effect because they responded more aggressively towards neighbours than to strangers. However, territorial behaviour varied seasonally: (1) aggressions to all intrusions by neighbours were equally strong regardless of the location from which they were perceived prior to reproduction and (2) individuals were more aggressive towards neighbour males when perceived at a different border of their territory to the one they share during the post-breeding season. We conclude that territorial males respond to neighbours by assessing their threat to paternity and territoriality and thus modulate their aggressive response based on the season. In contrast, limited responses to strangers suggest that these individuals do not represent a serious threat to males of <em>A. assimilis</em> during the seasons we studied them. Thus, territorial aggressions against neighbours appear to be a mate-guarding mechanism in this species. Our results differ from those found in temperate zones, where strangers often elicit responses indicating they may represent a stronger threat than neighbours. Additional studies on the behavioral ecology of tropical birds are required to understand the generality of nasty-neighbour effects and the drivers of territorial behaviors.</p>
Dataset for: Immediate and carry-over effects of late-spring frost and growing season drought on forest gross primary productivity capacity in the Northern Hemisphere
<p>Forests are increasingly exposed to extreme global warming-induced climatic events. However, the immediate and carry-over effects of extreme events on forests are still poorly understood. Gross primary productivity (GPP) capacity is regarded as a good proxy of the ecosystem's functional stability, reflecting its physiological response to its surroundings. Using eddy covariance data from 34 forest sites in the Northern Hemisphere, we analyzed the immediate and carry-over effects of late-spring frost (LSF) and growing season drought on needle-leaf and broadleaf forests. Path analysis was applied to reveal the plausible reasons behind the varied responses of forests to extreme events. The results show that LSF had clear immediate effects on the GPP capacity of both needle-leaf and broadleaf forests. However, GPP capacity in needle-leaf forests was more sensitive to drought than in broadleaf forests. There was no interaction between LSF and drought in either needle-leaf or broadleaf forests. Drought effects were still visible when LSF and drought coexisted in needle-leaf forests. Path analysis further showed that the response of GPP capacity to drought differed between needle-leaf and broadleaf forests, mainly due to the difference in the sensitivity of canopy conductance. Moreover, LSF had a more severe and long-lasting carry-over effect on forests than drought. These results enrich our understanding of the mechanisms of forest response to extreme events across forest types.</p>
Tapajos K67 tropical forest seasonal flux tower data
<p>Seasonal (16-day) eddy covariance measurements that include water, carbon, and energy flux, radiation, canopy temperature, humidity, and ancillary calculations such as evaporation, transpiration, and leaf area index. Data was collected at the Tapajós National Forest, Santarem K67 (BR-Sa1), a tropical primary forest (2.857°S, 54.959°W). Measurements correspond to the periods: April 2001 - January 2006, July 2008 - July 2012, and January 2015 - July 2020. The 16-day fluxes and meteorological data were obtained from an average daily cycle based on hourly observations. As a result, we refrain from assigning greater significance to specific hours when the fluxes tend to be complete, and vice versa (for instance, in cases of missing flux values due to afternoon rainfall events). Daytime values were selected as above a 5 W m<sup>-2</sup> top of the atmosphere radiation (TOA; W m<sup>-2</sup>) and labeled as LE<sub>daytime</sub> in the case of latent heat flux (LE), H<sub>daytime</sub> for sensible heat flux (H), and so on.</p>
Chronological dataset of soil respiration fluxes from a seasonally dry forest in Northwest México
<p>Soil respiration data was acquired and analyzed as described in Vargas-Terminel et al.[1]. Briefly, soil respiration was obtained by measuring changes in CO<sub>2</sub> concentrations with a portable soil flux system attached to a static chamber covering a portion of soil. Each measurement cycle in soil lasted 3 mins and was done monthly during a four-year period in 8 to 12 locations within three sites of tropical dry forest in Northwestern Mexico (a recent abandonment, a mid-secondary forest and an old-growth). Also, simultaneous soil temperature and volumetric soil water content measurements were carried with a thermocouple thermometer and a soil moisture sensor, respectively. Finally, soil respiration flux was calculated with commercial soil data processing software.</p>
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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)
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DANDI Archive for NWB datasets
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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.