Article
Forestry
Dong Hu, Yao Xu, Yongfu Chai, Tingting Tian, Kefeng Wang, Peiliang Liu, Mingjie Wang, Jiangang Zhu, Dafu Hou, Ming Yue
Summary: This study assessed the genetic diversity and spatial distribution patterns of Quercus wutaishanica. The results showed an inverted J-shaped diameter structure and aggregation at small scales, while random distribution at larger scales. Individuals of different diameter classes showed varying relationships at different scales, with no correlation observed between saplings and seedlings.
Article
Biodiversity Conservation
Ke-tong Yang, Guo-peng Chen, Jun-ren Xian
Summary: In this study, we measured stomatal density and position of 90 widespread plants on the Loess Plateau, and analyzed the spatial patterns using replicated spatial point pattern analysis. The results showed that stomatal distribution pattern was similar in most plants, except for five species. Stomatal density and distribution were influenced by phylogeny and spatial scale, with regular distribution at small scales and random distribution at large scales. These findings provide insights into the relationships between stomatal distribution and phylogeny, which can inform the optimization of transpiration models in the future.
ECOLOGICAL INDICATORS
(2023)
Article
Physics, Multidisciplinary
Robert N. Cahn, Zachary Slepian, Jiamin Hou
Summary: We describe how the galaxy four-point correlation function can be used to test for cosmological parity violation, which would indicate unknown forces in the early universe. Recent advancements in evaluating galaxy N-point correlation functions and determining the corresponding covariance matrices enable the search for parity violation in the four-point correlation function in ongoing and upcoming surveys. We estimate the potential limits on cosmic parity violation that can be achieved using these data.
PHYSICAL REVIEW LETTERS
(2023)
Article
Forestry
Daniel J. Johnson, Lukas Magee, Karun Pandit, Jacqueline Bourdon, Eben N. Broadbent, Kaylyn Glenn, Youssef Kaddoura, Siddarth Machado, Joseph Nieves, Benjamin E. Wilkinson, Angelica M. Almeyda Zambrano, Stephanie A. Bohlman
Summary: Research shows that in an established longleaf pine forest, longleaf pine saplings are more likely to be found near turkey oak trees, while turkey oak saplings tend to cluster around turkey oak trees. This demonstrates that canopy tree composition, leaf litter, and fire behavior are important driving mechanisms for the successful establishment of both pines and oaks in this forest.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Biodiversity Conservation
Lazar Kesic, Klara Cseke, Sasa Orlovic, Dejan B. Stojanovic, Sasa Kostic, Attila Benke, Attila Borovics, Srdan Stojnic, Evangelia Avramidou
Summary: Genetic diversity and structure of seven pedunculate oak populations at the southern edge of their distribution on the Balkan Peninsula (Serbia) were evaluated, showing high genetic diversity and low differentiation among populations. Three additional gene conservation units were suggested for the long-term sustainability of species diversity, considering the importance of rear-edge populations.
Article
Biodiversity Conservation
Chao Tan, David Kay Ferguson, Zhiyao Tang, Yong Yang
Summary: The family Lauraceae in China is rich in species but threatened by over exploitation and habitat loss. This study examines the distribution characteristics and conservation status of Lauraceae species, finding that species richness decreases with latitude and is influenced by certain environmental factors. Most threatened species are protected in nature reserves, but there are still some species that lack conservation. Urgent conservation actions are proposed, especially for species with small populations.
GLOBAL ECOLOGY AND CONSERVATION
(2023)
Article
Biodiversity Conservation
Detuan Liu, Jianbo Yang, Suiyun Chen, Weibang Sun
Summary: Detailed information on the spatial distribution of threatened species is crucial for biodiversity conservation. This study examines the potential impacts of climate change on the spatial patterns of threatened Acer species in China. The research suggests that annual precipitation and iso-thermality are the key climatic factors determining the distribution patterns of threatened Acer in China. The findings also highlight the vulnerability of these species to climate change and emphasize the importance of considering global change in conservation efforts.
GLOBAL ECOLOGY AND CONSERVATION
(2022)
Article
Biodiversity Conservation
Dan Xie, Xin-Quan Liu, Ya-Xing Chen, Dan Jiao, Jia-Xin Lou, Xiu-Fei Qiu, Wei-Hua Xu, Zhi-Heng Wang, Jin-Hua Ran, Xiao-Quan Wang
Summary: China is a center of gymnosperm diversity with 195 species, 69 of which are threatened. The conservation status of threatened gymnosperms in China remains largely unknown, with the Western Sichuan Plateau identified as an important conservation priority area. More attention should be given to unprotected threatened gymnosperms and taxonomic studies on species without detailed distribution records.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Mathematics, Applied
Bouzida Imed, Zitouni Mouna
Summary: In this paper, a new probability distribution called the Lindley q-distribution is introduced, which includes the Lindley q-distribution of the first and second kind. The properties of this distribution, such as q-moments, q-variance, and q-cumulative functions, are discussed. Parameter estimation methods based on the fixed point method and the method of moments are obtained. Finally, simulation studies are conducted to illustrate the performances of the proposed q-distributions.
RICERCHE DI MATEMATICA
(2023)
Article
Biodiversity Conservation
Yan-Yu Ai, Qiang Liu, Hai-Xia Hu, Ting Shen, Yu-Xuan Mo, Xun-Feng Wu, Jin-Long Li, Gbadamassi G. O. Dossa, Liang Song
Summary: This study investigated the diversity and distribution patterns of orchids in Mt. Victoria, Myanmar. A total of 94 orchid species were recorded, including 58 epiphytic and 36 terrestrial orchids. The results showed that both elevation and slope significantly affected the species composition and diversity of orchids, and terrestrial orchids were also affected by herb coverage. The network between epiphytic orchids and their hosts exhibited a low level of connectance, and significant nestedness with a high level of modularity and specialization.
GLOBAL ECOLOGY AND CONSERVATION
(2023)
Article
Environmental Studies
Benedict Dempsey
Summary: Conservationists in England are divided into four contrasting perspectives: Management of Changing Nature, Innovation in Nature, Protection of Threatened Nature, and Re-establishment of Wild Nature. The study clarifies conservation discourse in England, revealing resistance to natural capital approaches and apparent acceptance of rewilding. These findings provide guidance for conservation leaders seeking to implement strategies like the UK's 25 Year Environment Plan.
Article
Mathematics, Applied
Adel Lachouri, Mohammad Esmael Samei, Abdelouaheb Ardjouni
Summary: In this study, a nonlinear fractional pantograph q-difference equation with nonlocal boundary conditions is analyzed using fractional quantum calculus. The existence and uniqueness of solutions are proven using well-known fixed-point theorems. The Ulam-Hyers stability of the mentioned pantograph q-difference problem is also discussed. Additionally, pertinent examples are provided to support the theoretical analysis and validate the obtained results.
BOUNDARY VALUE PROBLEMS
(2023)
Article
Biodiversity Conservation
Tiantian Xue, Sudhindra R. Gadagkar, Thomas P. Albright, Xudong Yang, Jin Li, Changying Xia, Jianyong Wu, Shengxiang Yu
Summary: Through the analysis of a large number of sampling coordinates, researchers identified nine hotspot areas in the Qinghai-Tibetan Plateau, with four being identified for the first time. These areas cover 89% of species richness but only 7% of the total land area. Conservation efforts should focus on establishing new protected areas in conservation gaps, upgrading existing nature reserves, and carrying out targeted conservation for endemic species in the QTP.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Ecology
N. Quy, Y. X. Kang, I Ashraful, M. Li, N. T. Tuan, N. Nguyen, N. Hop
Summary: The study on the ecology and spatial patterns of Hopea pierrei in Vietnam revealed that the plant displayed aggregated and randomly distributed patterns influenced by environmental heterogeneity. Intraspecific associations of H. pierrei were mainly attraction-based, while its interactions with sixteen dominant species were mostly independent. Seed dispersal and self-thinning were identified as key mechanisms shaping the spatial patterns and associations of H. pierrei.
APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Alejandra Angulo, Carlos A. Vargas
Summary: The presence of sedimentary sequences at specific temperature ranges allows for the identification of economically important hydrocarbon accumulation patterns. This study presents global distribution maps of the "Golden Zone" which represents the area where petroleum system elements can coexist without significant degradation. The maps show variations in different geotectonic environments, with thin sedimentary sequences along active tectonic margins and a wide range of thicknesses within basins on passive margins.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Ecology
Severin D. H. Irl, Andreas H. Schweiger, Manuel J. Steinbauer, Claudine Ah-Peng, Jose Ramon Arevalo, Carl Beierkuhnlein, Alessandro Chiarucci, Curtis C. Daehler, Jose Maria Fernandez-Palacios, Olivier Flores, Christoph Kueffer, Petr Madera, Rudiger Otto, Julienne M. -I. Schweiger, Dominique Strasberg, Anke Jentsch
Summary: Plant invasion on tropical and subtropical islands seems to be mainly driven by precipitation and human impact, while temperature seems to be of little importance. Furthermore, anemochory and anthropochory are dispersal strategies associated with large niche widths of non-native species.
JOURNAL OF BIOGEOGRAPHY
(2021)
Article
Agronomy
Miguel Mellado, Juan A. Encina-Dominguez, Jose E. Garcia, Eduardo Estrada-Castillon, Jose R. Arevalo
Summary: The study found that after four years of vegetation transformation through different treatments such as clearing vegetation, seeding native grass or introducing grass species, it was discovered that native grass had the greatest impact on vegetation restoration.
Article
Ecology
Jose Ramon Arevalo, Juan A. Encina-Dominguez, Miguel Mellado, Jose E. Garcia-Martinez, Arturo Cruz-Anaya
Summary: Grazing significantly impacts forest structure and diversity, affecting tree populations and making them more vulnerable to parasitic plants. Reduction in grazing pressure and more restrictive management are suggested to maintain landscape use, cultural values, and biodiversity.
ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
(2021)
Article
Ecology
Sylvia Haider, Jonas J. Lembrechts, Keith McDougall, Anibal Pauchard, Jake M. Alexander, Agustina Barros, Lohengrin A. Cavieres, Irfan Rashid, Lisa J. Rew, Alla Aleksanyan, Jose R. Arevalo, Valeria Aschero, Chelsea Chisholm, V. Ralph Clark, Jan Clavel, Curtis Daehler, Pervaiz A. Dar, Hansjorg Dietz, Romina D. Dimarco, Peter Edwards, Franz Essl, Eduardo Fuentes-Lillo, Antoine Guisan, Onalenna Gwate, Anna L. Hargreaves, Gabi Jakobs, Alejandra Jimenez, Paul Kardol, Christoph Kueffer, Christian Larson, Jonathan Lenoir, Bernd Lenzner, Miguel A. Padron Mederos, Maritza Mihoc, Ann Milbau, John W. Morgan, Jana Mullerova, Bridgett J. Naylor, Ivan Nijs, Martin A. Nunez, Rudiger Otto, Niels Preuk, Amanda Ratier Backes, Zafar A. Reshi, Sabine B. Rumpf, Veronica Sandoya, Mellesa Schroder, Karina L. Speziale, Davnah Urbach, Graciela Valencia, Vigdis Vandvik, Michaela Vitkova, Tom Vorstenbosch, Tom W. N. Walker, Neville Walsh, Genevieve Wright, Shengwei Zong, Tim Seipel
Summary: Climate change and human disturbance threaten plant diversity in mountains worldwide. A standardized monitoring strategy is needed to assess distribution changes and community turnover of plant species. The protocol developed by the Mountain Invasion Research Network (MIREN) provides a standardized and intuitive approach to quantify global patterns of native and non-native species distributions along elevation gradients and shifts arising from climate change and human disturbance. Evaluating the protocol in more mountain regions globally would inform conservation policy.
ECOLOGY AND EVOLUTION
(2022)
Article
Agronomy
Andrea Gonzalez-Tavizon, Cesar A. Meza-Herrera, Gerardo Arellano-Rodriguez, Miguel Mellado, Viridiana Contreras-Villarreal, Oscar Angel-Garcia, Jose R. Arevalo, Francisco G. Veliz-Deras
Summary: This study assessed the influence of social rank and stimulus quality on rams and ewes. The findings suggest that low hierarchy rams are equally effective as high hierarchy rams in inducing sexual activity in ewes showing postpartum anestrus.
Article
Forestry
Juan A. Encina-Dominguez, Eduardo Estrada-Castillon, Miguel Mellado, Cristina Gonzalez-Montelongo, Jose Ramon Arevalo
Summary: "Disturbances in the pine forests of Mexico, primarily caused by cattle, horses, goat, and sheep grazing, have resulted in low tree recruitment, establishment of invasive shrubs, changes in species composition, and invasion of weeds primarily spread by livestock. This study compared a grazing-excluded pine forest stand with a nearby area subjected to livestock grazing in the Sierra de Zapaliname natural protected area in northeast Mexico. The results showed that grazing has altered the understory species composition and reduced evenness in the control plots. To maintain species diversity and forest structure, it is recommended to restrict extensive grazing or reduce the number of animals in areas of high ecological value."
Article
Green & Sustainable Science & Technology
Eduardo Estrada-Castillon, Jose Angel Villarreal-Quintanilla, Luis Gerardo Cuellar-Rodriguez, Marti March-Salas, Juan Antonio Encina-Dominguez, Wibke Himmeslbach, Maria Magdalena Salinas-Rodriguez, Jacqueline Guerra, Mauricio Cotera-Correa, Laura Magdalena Scott-Morales, Rebecca Jane Friesen, Patricio Garza-Zambrano, Jose Ramon Arevalo-Sierra, Homero Garate-Escamilla, Maritza Gutierrez-Gutierrez, Tania Vianney Gutierrez-Santillan
Summary: This study documented 250 plant species with ethnobotanical implications in Iturbide, Mexico through field trips and interviews. Ornamental, medicinal, and food uses were the main categories of plant utilization. The native and exotic flora in this area exhibited extensive knowledge and multifunctionality.
Article
Plant Sciences
Amanda Ratier Backes, Christine Roemermann, Jake M. Alexander, Jose Ramon Arevalo, Petr Keil, Miguel Antonio Padron-Mederos, Stefan Trogisch, Sylvia Haider
Summary: By studying a steep elevational gradient in Tenerife, we found a peak of plant species richness in the lowest third of the gradient, which was significantly correlated with temperature, area, and disturbance. We confirmed that temperature was the main mechanism driving the elevational pattern of species richness, as indicated by changes in functional traits. The trait-based approach presented in this study can be applied to understand species richness patterns in other regions and environmental gradients.
JOURNAL OF VEGETATION SCIENCE
(2023)
Article
Environmental Studies
Jose Ramon Arevalo, Cristina Gonzalez-Montelongo, Juan A. Encina-Dominguez, Eduardo Garcia, Miguel Mellado
Summary: A well-managed grazing system is important for improving productivity and health. The study found that grazing can alter species composition but not richness and evenness. Exclusion of grazing can increase grass cover and decrease forb cover, promoting greater plant diversity.
Article
Biodiversity Conservation
Marti March-Salas, Felipe Morales-Armijo, Juan Antonio Hernandez-Agueero, Eduardo Estrada-Castillon, Andrea Sobrevilla-Covarrubias, Jose Ramon Arevalo, J. F. Scheepens, Juan Lorite
Summary: Cliffs are unique ecosystems with diverse plant life, including rare and endangered species. However, the increasing popularity of climbing poses a threat to this ecosystem, negatively impacting plant abundance, diversity, and species associations. Our study in El Potrero Chico, Mexico, found that climbing reduced the abundance and diversity of plants, particularly dominant species and rare endemic species. Climbing also disrupted species associations and led to the disappearance of locally rare and endangered species. Therefore, conservation efforts should focus on preserving the holistic ecosystem of cliffs, rather than solely prioritizing emblematic or rare species.
BIODIVERSITY AND CONSERVATION
(2023)
Article
Ecology
Jose Ramon Arevalo, Maria Bernardos, Cristina Gonzalez-Montelongo, Federico Grillo
Summary: Forest fires are important for structuring forest plant communities. Prescribed burning is effective in reducing fire risk by reducing fuel amount. However, it has little impact on undergrowth species richness and diversity in reforested Pinus canariensis stands.
Article
Agriculture, Dairy & Animal Science
Maria G. Machado-Ramos, Cesar A. Meza-Herrera, Angeles De Santiago-Miramontes, Miguel Mellado, Francisco G. Veliz-Deras, Fernando Arellano-Rodriguez, Viridiana Contreras-Villarreal, Jose R. Arevalo, Dalia I. Carrillo-Moreno, Jessica M. Flores-Salas
Summary: In arid Northern Mexico, surplus feed from dairy farms, which retains high nutritional value, could be used to improve the reproductive efficiency of goats managed under extensive systems. This study aimed to evaluate the effect of targeted supplementation with dairy-cow-feed leftovers on the reproductive performance of rangeland goats. The results showed that supplementation significantly improved ovulation rate and pregnancy rate in the supplemented group compared to the non-supplemented group.
Article
Plant Sciences
Maria Bernardos, Natalia Sierra Cornejo, Antonio Daniel Torres Hassan, Raimundo Cabrera, Jose Ramon Arevalo
Summary: Roads can significantly affect plant species composition and richness, especially in arid ecosystems. Areas with higher traffic intensity have a greater presence of both native and non-native species. Therefore, proper management of infrastructure in natural protected areas is crucial for the preservation of their unique flora, landscapes, and succession processes.
Article
Agronomy
Jose Ramon Arevalo, Juan A. Encina-Dominguez, Cristina Gonzalez-Montelongo, Miguel Mellado, Arturo Cruz-Anaya
Summary: Grasslands and pastures are widely studied for their geographic variation, species richness, ecological functioning, and economic importance. The impact of grassland management on species diversity has contradictory results, but scale is a crucial factor. Analyzing the effects of cattle grazing on species richness in a protected area in northern Mexico, the study found significant differences in plant species increase between grazed and excluded plots, highlighting the potential of excluding grazing in certain areas for promoting plant species diversity.
Article
Plant Sciences
Mathias Christina, Celine Gire, Mark R. Bakker, Alan Leckie, Jianming Xue, Peter W. Clinton, Zaira Negrin-Perez, Jose Ramon Arevalo Sierra, Jean-Christophe Domec, Maya Gonzalez
Summary: This study compared the effects of water regime and temperature on the growth and mortality of invasive and native populations of common gorse seedlings. The results showed that under elevated temperature and drought conditions, invasive populations exhibited higher survival rate and growth capacity compared to native populations. The study emphasizes the importance of assessing phenotypic changes within invasive species to determine climatic distribution range boundaries and identify key areas for management efforts to limit their spread.
JOURNAL OF PLANT ECOLOGY
(2023)
