Biotropica最新文献

2024 ATBC Honorary Fellows

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-23 DOI: 10.1111/btp.70032

Norbert Cordeiro, Jennifer S. Powers, Lúcia G. Lohmann

引用次数: 0

Periodic Mangrove Growth Induced by Water Salinity Fluctuations Under Tropical Monsoon Climate, Thailand

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-21 DOI: 10.1111/btp.70037

Sasitorn Poungparn, Chadtip Rodtassana, Suthathip Umnouysin, Piyapon Kankong, Akira Komiyama, Vilanee Suchewaboripont, Tamanai Pravinvongvuthi

{"title":"Periodic Mangrove Growth Induced by Water Salinity Fluctuations Under Tropical Monsoon Climate, Thailand","authors":"Sasitorn Poungparn, Chadtip Rodtassana, Suthathip Umnouysin, Piyapon Kankong, Akira Komiyama, Vilanee Suchewaboripont, Tamanai Pravinvongvuthi","doi":"10.1111/btp.70037","DOIUrl":"https://doi.org/10.1111/btp.70037","url":null,"abstract":"<div>\u0000 \u0000 Mangrove tree growth is crucially affected by water salinity in tropical monsoon areas having distinct seasonal rainfall. However, the seasonal growth pattern of mangroves in these areas remains insufficiently understood. We investigated stem growth and leaf phenology of mangroves and inundation water salinity over 2 years in an estuarine mangrove forest in Trat with clear seasonality and abundant rainfall (2938 mm), and in a shoreline fringe forest at Bangpu with moderate rainfall (764 mm) in Thailand. Salinity fluctuations at both sites were regulated by the monthly rainfall and the geographical location. All studied mangroves showed a seasonal stem-growth pattern, with higher growth rates in the wet seasons due to lower water salinity. The varied rates of seasonal stem growth among species at Trat corresponded with their zonation. The leaf emergence rates were also high in the wet season for Rhizophora apiculata at Trat and Avicennia alba at both sites. Salinity fluctuation driven by the seasonal rainfall directly affected leaf emergence of R. apiculata and both leaf emergence and stem growth of A. alba at Trat. However, at Bangpu, leaf phenology of A. alba responded to the temperature and decoupled from stem growth, which is directly influenced by monthly rainfall. Rhizophora apiculata stem growth was associated with the variation in leaf emergence. Thus, seasonal changes in the saline environments induced the periodic growth pattern of mangroves. Interestingly, the growth pattern of A. alba growing under different rainfall intensities responds to different triggers and indicates its high ecophysiological plasticity, enabling it to thrive across tropical mangrove forests.\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143852959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tropical Ant Communities Under Agroforestry Can Be Diverse but Lack Trait-and-Environment Associations

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-17 DOI: 10.1111/btp.70035

Mohammad Abdus Shakur, Sumanta Bagchi, Pronoy Baidya, Navendu V. Page, Gautam Talukdar

{"title":"Tropical Ant Communities Under Agroforestry Can Be Diverse but Lack Trait-and-Environment Associations","authors":"Mohammad Abdus Shakur, Sumanta Bagchi, Pronoy Baidya, Navendu V. Page, Gautam Talukdar","doi":"10.1111/btp.70035","DOIUrl":"https://doi.org/10.1111/btp.70035","url":null,"abstract":"<div>\u0000 \u0000 Human land use often alters community composition that affects many related ecosystem functions. However, intermediate-intensity land use, such as agroforestry, can be a refuge for biodiversity and can maintain ecosystem functions and services in working landscapes. We quantified how the alpha and beta diversity of ants (Hymenoptera: Formicidae) vary with human land use in the Kodagu region of the Western Ghats, India, across four land use types (forests, forest fragments, and two types of coffee plantations with either native or non-native shade trees). We studied ants, as they perform a wide range of ecological functions such as predation, herbivory, seed dispersal, and decomposition, etc., in such landscapes. We also assessed the functional diversity of ants and estimated the interactions between their traits and the environment. We found that the plantations, on average, had 26% lower species richness than forests and forest fragments, and functional richness was 31% lower in non-native plantations. However, plantations showed higher beta diversity than forests at both taxonomic and functional levels. Interestingly, turnover was higher in non-native than native plantations by 32% and 24% at taxonomic and functional levels, respectively. Plantations also had weak and few ants' trait-and-environment interactions, suggesting that environmental filters may not be influential in structuring ant communities under human land use, compared to forests. Overall, while ant communities under human land use differ from those in forests, they can be heterogeneous and able to perform similar functions. Our findings highlight the importance of agroforestry as working landscapes which can maintain biodiversity and ecosystem functions.\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pyraloid Moth Assemblages Exhibit Complex Morphological Patterns Across an Ecuadorian Mountainous Forest 厄瓜多尔山区森林中的萤火虫蛾类群呈现出复杂的形态模式

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-11 DOI: 10.1111/btp.70033

Victor Sebastian Scharnhorst, Konrad Fiedler

{"title":"Pyraloid Moth Assemblages Exhibit Complex Morphological Patterns Across an Ecuadorian Mountainous Forest","authors":"Victor Sebastian Scharnhorst, Konrad Fiedler","doi":"10.1111/btp.70033","DOIUrl":"https://doi.org/10.1111/btp.70033","url":null,"abstract":"We tested how morphological traits and species diversity of Pyraloidea moth assemblages vary across an Andean rainforest elevational gradient in Ecuador, and how environmental conditions shape these patterns. We analyzed 4161 individuals representing 212 species from a larger dataset of 10,337 individuals and 749 morpho-species, using the latter for cross-validation, and related our findings to ambient temperature and vegetation cover. Our multivariate analysis at 22 sites from 1020 to 2700 m above sea level identified five species assemblage clusters, revealing a near-linear decrease in species diversity with cooler temperatures. Community-weighted means (CWMs) of forewing length, indicating body size, increased nearly linearly with dropping temperatures, contrasting with results found for Geometridae moths at the same sites. Forewing aspect ratio (AR) demonstrated a U-shaped relationship with temperature, while wing loading (WL) followed a hump-shaped trajectory. Around 2000 m, Pyraloidea assemblages exhibited the lowest AR and highest WL, indicating morphological adaptations to dense forests, in contrast to both the more open forests near the treeline and the tall rainforest found at lower elevations. Subfamily-level analyses revealed variable patterns: Acentropinae, with strictly aquatic larvae, showed larger sizes at cooler elevations but less wing shape variation, likely reflecting limited forest dependence on maneuverability. Musotiminae, with a larval diet of diverse ferns, exhibited wing morphologies more related to canopy openness than temperature, indicating adaptations to navigating different fern habitats along the gradient. Our observations reveal complex insect–environment interactions that challenge the applicability of just one common theoretical framework for explaining temperature–size relationships among different moth clades.","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biotropica at the Forefront of Tropical Seed Dispersal Ecology 站在热带种子传播生态学前沿的 Biotropica

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-11 DOI: 10.1111/btp.70034

João Vitor S. Messeder, Fernando A. O. Silveira

引用次数: 0

Role of Rivers as Geographical Barriers in Shaping Molecular Divergence of Neotropical Primates

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-11 DOI: 10.1111/btp.70028

William D. Helenbrook, Jose Valdez

{"title":"Role of Rivers as Geographical Barriers in Shaping Molecular Divergence of Neotropical Primates","authors":"William D. Helenbrook, Jose Valdez","doi":"10.1111/btp.70028","DOIUrl":"https://doi.org/10.1111/btp.70028","url":null,"abstract":"<div>\u0000 \u0000 We quantitatively tested the riverine barrier hypothesis and its influence on biogeographical distributions and molecular variation in New World monkeys (Parvorder: Platyrrhini). Using mitochondrial markers (cytochrome oxidase subunit II and cytochrome b), we analyzed taxonomic differences and the effects of geographical barriers on molecular patterns across Central and South America. Nearly 80% of described species are separated by geographical barriers, including several mountain chains. River width exhibited a negative correlation with molecular similarity in adjacent taxa for both molecular markers. Several presently described taxa were not supported based solely on these molecular phylogenetic markers, including Saimiri, Mico, Cebus, Sapajus, and Cherecebus. These taxonomic issues are far more common where river barriers do not exist. In conclusion, we found a significant correlation between river width and molecular divergence in adjacent taxa, indicating that wider rivers were associated with greater molecular divergence for two commonly used mitochondrial genes. Species boundaries were predominantly found at river interfaces, and in the absence of discernable geological barriers, adjoining species were more likely to exhibit molecular similarity. Our findings suggest that river and mountain barriers are significantly associated with gene flow for neotropical primate taxa. Additionally, river width proves to be a valuable tool for estimating molecular divergence in adjacent taxa, particularly in regions with limited sampling.\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predicting Climatic Limits Along a Rainfall Gradient of Dipterocarp Species Based on Leaf Turgor Loss Point

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-11 DOI: 10.1111/btp.70029

Kiyosada Kawai, Kevin Kit Siong Ng, Soon Leong Lee

{"title":"Predicting Climatic Limits Along a Rainfall Gradient of Dipterocarp Species Based on Leaf Turgor Loss Point","authors":"Kiyosada Kawai, Kevin Kit Siong Ng, Soon Leong Lee","doi":"10.1111/btp.70029","DOIUrl":"https://doi.org/10.1111/btp.70029","url":null,"abstract":"<div>\u0000 \u0000 Drought tolerance is an integral determinant of drought survival in trees; thus, an accurate and rapid assessment of drought tolerance can lead to improved prediction of forest responses to droughts. The osmometer method enables the rapid determination of the leaf water potential at turgor loss (πtlp), a key parameter of drought tolerance, from the osmotic potential at full turgor (πsat). However, despite its wide applications, there have been few validations in ever-wet tropical rainforests. Here, we assessed the efficacy of the osmometer method in dipterocarps, a dominant tree group in SE Asia in ever-wet Malaysia, and examined the linkage between πtlp and distribution along a rainfall gradient. The πtlp determined using the conventional method was strongly and linearly correlated with the πsat determined using an osmometer. The coefficients of our model were statistically identical to those previously represented, but with a slightly larger intercept (0.21 MPa). Species with more negative πtlp were distributed in drier habitats, with a relatively larger variation in πtlp for species confined to ever-wet climates than for those occurring in ever-wet and seasonally dry climates. Some leaf traits, individual leaf area and dry matter content, were associated with πtlp, but these traits alone could not predict species distribution. We demonstrated the robustness of the osmometer method in ever-wet tropical rainforest species and that πtlp is associated with current distribution along large-scale moisture availabilities.\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Vegetation Density on the Diversity of Lizards in an Area of the Brazilian Cerrado

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-08 DOI: 10.1111/btp.70022

Bruno F. Fiorillo, Liliana Piatti, Marcio Martins

{"title":"Effects of Vegetation Density on the Diversity of Lizards in an Area of the Brazilian Cerrado","authors":"Bruno F. Fiorillo, Liliana Piatti, Marcio Martins","doi":"10.1111/btp.70022","DOIUrl":"https://doi.org/10.1111/btp.70022","url":null,"abstract":"<div>\u0000 \u0000 The Cerrado is a highly threatened biome that harbors a great portion of Brazilian biodiversity, including many endemic species. Such richness may reflect its environmental heterogeneity, which includes different vegetation types (from grasslands to forests). Several endemic species in the Cerrado are strongly associated with open vegetation types. Recent studies have shown that woody encroachment can negatively impact several components of biodiversity. In the present study, we provide information on variation in lizard diversity across different vegetation types in a protected area located in the southern portion of the Cerrado and evaluated the effect of vegetation density on lizard taxonomic, functional, and phylogenetic diversity. We predicted that the three aspects of lizard diversity would be negatively affected by vegetation density and that Beta diversity would vary significantly across the vegetation gradient. We confirmed nearly all of our predictions, except for functional diversity, which, contrary to our expectations, was positively influenced by vegetation density. We also found that Beta diversity indices based on both species composition/abundance and phylogenetic features of communities experience a significant turnover across the vegetation density gradient. This study greatly strengthens previous studies that suggest a negative impact of vegetation density (and, consequently, woody encroachment) on lizard diversity. Therefore, managers of protected areas in the Cerrado should consider the use of strategies to avoid woody encroachment, like fire management with prescribed fires.\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Patterns of Leaf, Flower, and Fruit Phenology and Environmental Relationships in a Seasonal Tropical Forest in the Indian Eastern Himalaya

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-08 DOI: 10.1111/btp.70030

Aparajita Datta, Soumya Banerjee, Rohit Naniwadekar, Khem Thapa, Akanksha Rathore, Kumar Thapa, Turuk Brah, Tali Nabum, Narayan Mogar, Ushma Shukla, Swati Sidhu, Noopur Borawake

{"title":"Patterns of Leaf, Flower, and Fruit Phenology and Environmental Relationships in a Seasonal Tropical Forest in the Indian Eastern Himalaya","authors":"Aparajita Datta, Soumya Banerjee, Rohit Naniwadekar, Khem Thapa, Akanksha Rathore, Kumar Thapa, Turuk Brah, Tali Nabum, Narayan Mogar, Ushma Shukla, Swati Sidhu, Noopur Borawake","doi":"10.1111/btp.70030","DOIUrl":"https://doi.org/10.1111/btp.70030","url":null,"abstract":"<div>\u0000 \u0000 Tree phenology plays an important role in determining the structure and function of tropical forest communities. However, there are few long-term studies on tree phenology from South Asia. We monitored 716 trees of 54 species monthly from 2011 to 2023 for leaf flush, flowering, and fruiting in the Pakke Tiger Reserve, Arunachal Pradesh, and North-east India. We examined monthly patterns in the percentage of species and trees in leaf flush, flower, and fruit and characterized phenological seasonality using circular statistics. We hypothesized that phenological patterns would show significant seasonality, with phenological activity being triggered by increasing solar irradiance and daylength. Flowering periodicity was classified using Fourier analysis, and we examined the relationships between phenological activity and temperature, rainfall, solar radiation, and daylength using GAMLSS. Leaf flush and flowering were moderately seasonal, peaking in the warm dry season. Fruiting patterns and their seasonality differed among dispersal modes. Most species (78.13%) and trees (51.17%) flowered annually. In accordance with our hypothesis, daylength and solar radiation served as proximate cues for phenological activity through nonlinear effects. This indicated the existence of narrow ranges of optimal climatic conditions for phenology. Rainfall was not an important proximate cue as water availability was not a constraint for tree phenology in the site. Our study is the first long-term phenological monitoring effort that establishes the proximate climatic cues for the observed patterns of leaf flush, flowering, and fruiting in the seasonal tropical forests of the Eastern Himalaya.\u0000 </div>","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Long-Term Fire and Vegetation Change at Cocha Cashu Biological Station, Peru

IF 1.8 3区环境科学与生态学

Biotropica Pub Date : 2025-04-04 DOI: 10.1111/btp.70010

C. N. H. McMichael, J. A. Watson, M. B. Bush

{"title":"Long-Term Fire and Vegetation Change at Cocha Cashu Biological Station, Peru","authors":"C. N. H. McMichael, J. A. Watson, M. B. Bush","doi":"10.1111/btp.70010","DOIUrl":"https://doi.org/10.1111/btp.70010","url":null,"abstract":"Past human influence from the pre-Columbian and colonial periods may have played a role in shaping modern Amazonian vegetation. Here, we assessed past human activities and vegetation change from a well-studied research station in the Peruvian Amazon using charcoal and phytoliths recovered from soil cores. The moderate seasonality has contributed to its high diversity, while its remoteness has generally led to assumptions of minimal past land modification by humans. We asked: (i) Is there evidence of past human influence, including cultivation, forest opening, or plant enrichment/depletion, in the forests around Cocha Cashu Biological Station? and (ii) was there a consistent increase in palm phytolith abundances through time as has been documented in the aseasonal forests of northwestern Amazonia? Only 38 (14%) of the 279 samples analyzed contained charcoal, highlighting the rarity of past fire at Cocha Cashu. The two charcoal fragments large enough for 14C dating had ages of 570–670 and 1350–1520 calibrated years before present. No cultivar phytoliths were found. Spheroid echinate phytoliths, produced by the palm genera Attalea, and Oenocarpus, and Euterpe, were more abundant in past samples than in modern samples. There was no increase in palm phytolith abundances from the bottom to top of the core, contrasting with recent findings from northwestern Amazonia. Our results support ideas that Cocha Cashu is composed of old growth forests and suggest that gradients of past human activities exist on local and regional scales in western Amazonia.","PeriodicalId":8982,"journal":{"name":"Biotropica","volume":"57 3","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/btp.70010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0