Norms And Variance Fail To Predict Butterfly Effects On Social Dynamics By Idiosyncratic Individuals,
2024
WildWatch
Norms And Variance Fail To Predict Butterfly Effects On Social Dynamics By Idiosyncratic Individuals, Stephen F. Stringham, Lynn Rogers, Ann Bryant
Animal Sentience
Adaptations and adjustments to current environmental conditions are manifest in behavioral norms. Knowing norms facilitates population-level prediction, but doesn’t predict individual behavior where idiosyncrasies might trigger “butterfly effects." Knowledge of individual quirks is particularly important for risk assessment and management during close encounters between humans and potentially lethal wildlife, including bears (Ursus spp.). Innovative foraging techniques can alter population vigor and viability. Traits at the tails of a bell curve might hold the greatest potential for adapting to environmental change.
The Behavioral Specialization Of African Ant-Following Birds On Dorylus Driver Ants,
2024
Louisiana State University and Agricultural and Mechanical College
The Behavioral Specialization Of African Ant-Following Birds On Dorylus Driver Ants, Patricia F. Rodrigues
LSU Doctoral Dissertations
Ant-following birds, that forage on arthropods flushed by swarm raiding army ants, are an iconic phenomenon in tropical forests around the globe. Despite capturing the attention of naturalists for over a century, research on ant-following birds has largely focused on Neotropical species. Decades of research on Neotropical ant-following birds has revealed fascinating aspects of their specialization, including complex cognitive and behavioral adaptations that allow birds to locate and track nomadic army ants. Despite this breadth of research on Neotropical species, virtually nothing is known of the behavioral ecology of African ant-following birds, and it remains unknown whether they exhibit adaptations …
Seed Dispersal By Martu Peoples Promotes The Distribution Of Native Plants In Arid Australia,
2024
The Pennsylvania State University
Seed Dispersal By Martu Peoples Promotes The Distribution Of Native Plants In Arid Australia, Rebecca Bliege Bird, Douglas Bird, Christopher T. Martine, Chloe Mcguire, Leanne Greenwood, Desmond Taylor, Tanisha M. Williams, Peter M. Veth
Faculty Journal Articles
Commensal relationships between wild plants and their dispersers play a key ecological and evolutionary role in community structure and function. While non-human dispersers are often considered critical to plant recruitment, human dispersers have received much less attention, especially when it comes to non-domesticated plants. Australia, as a continent historically characterized by economies reliant on non-domesticated plants, is thus a key system for exploring the ecological role of people as seed dispersers in the absence of agriculture. Here, we utilize a controlled observation research design, employing ecological surveys and ethnographic observations to examine how seed dispersal and landscape burning by Martu …
Postweaning Skull Growth In Living Didelphid Marsupials: The Case Of Gracilinanus Agilis And Cryptonanus Chacoensis,
2024
DePaul University
Postweaning Skull Growth In Living Didelphid Marsupials: The Case Of Gracilinanus Agilis And Cryptonanus Chacoensis, Iveth A. Villalobos Guerrero, Noé U. De La Sancha
DePaul Discoveries
Ontogeny is described as the history of an organism through its lifetime including development, growth, and allometry. The ontogenetic approach in cranial dimensions has proved useful in interpreting evolutionary patterns. Among the largest Didelphidae family of Neotropical marsupials, the species of Gracilinanus agilis and Cryptonanus chacoensis are poorly known. In this study, we address three questions; Is there sexual dimorphism in these species? What is the pattern of allometry? Which allometric patterns best describe the patterns in the skull and mandible? We applied geometric morphometrics to describe and test these differences using MorphoJ. A discriminant function analysis was performed to …
Wildlife Conservation: The Importance Of Individual Personality Traits And Sentience,
2024
Miami University
Wildlife Conservation: The Importance Of Individual Personality Traits And Sentience, Karen A. Owens, Gosia Bryja, Marc Bekoff
Animal Sentience
Individual differences in personality types within the same species have been studied much less than differences between species and populations. Personality differences are related to risk-taking and exploration, which in turn correlate with individuals' daily responses, decisions, and fitness. Bold and shy personality types can have different advantages and disadvantages under different social or environmental pressures. Analyzing personality differences has helped clarify how elk habituate to a well-populated area and how management strategies can be adapted to them. For wolves newly repatriated to Colorado, individual personality factors are likely to prove important for adapting to their new homes as well …
Scientific Note: An Incursion Of The Widely-Cultivated Katsura (Cercidiphyllum Japonicum, Cercidiphyllaceae) In Pennsylvania,
2024
Bucknell University
Scientific Note: An Incursion Of The Widely-Cultivated Katsura (Cercidiphyllum Japonicum, Cercidiphyllaceae) In Pennsylvania, Kayleigh R. Long, Melody P. Sain, Elizabeth H. Williams, Christopher T. Martine
Faculty Journal Articles
Cercidiphyllum japonicum (katsura) is a dioecious tree native to China and Japan. Although imperiled in parts of its natural distribution, the species has become quite common as a cultivated tree in temperate North America. The species is noted as occasionally escaping cultivation in the eastern United States, but few records of established incursions (and the conditions under which they might recruit) exist in the literature. We here report an incursion of C. japonicum in central Pennsylvania, along with notes on seedling recruitment on the Bucknell University campus.
Hybridization Between The Rare Gray-Headed Chickadee And The Abundant Boreal Chickadee In The Midst Of Shifting Climate,
2024
University of Nebraska-Lincoln
Hybridization Between The Rare Gray-Headed Chickadee And The Abundant Boreal Chickadee In The Midst Of Shifting Climate, Matthew R. Armstrong
School of Natural Resources: Dissertations, Theses, and Student Research
As species respond to changing climate, distributions and abundances may shift and alter species interactions. Hybridization, a relatively widespread phenomenon becoming more common with climate change, can have beneficial and detrimental effects on population growth rates and genetic integrity. Beneficial effects due to the introduction of advantageous alleles and increased genetic diversity may result from hybridization. Species may also accrue fitness costs associated with changing climates if mismatches occur between environmental variables and phenotypes. The gray-headed chickadee, Poecile cinctus lathami, is an extremely rare songbird that has experienced marked declines in recent decades within its restricted distribution in Alaska …
Phylogeny And Disparity Of Ammonoid Family Acanthoceratidae Over Ocean Anoxic Event 2,
2024
University of Nebraska-Lincoln
Phylogeny And Disparity Of Ammonoid Family Acanthoceratidae Over Ocean Anoxic Event 2, Lindsey Howard
Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research
The widespread use of genera as proxies for species in paleobiological studies might affect the results of these studies. Although most attention has been given to taxonomic diversity studies, this could also be true of disparity and phylogenetic studies. In particular, the assumption that particular character states truly diagnose all members of a genus might distort results. This study examines the disparity of Acanthoceratid ammonoids at both the generic and species level. 149 species from 42 genera were examined with 52 characters measured. Following the measurements, an inverse modeling simulation was run 100 times to generate a simulated phylogeny with …
The Relationship Between Changing Land Cover And Benthic Macroinvertebrate Diversity In Choccolocco Creek, Northeast Alabama,
2024
Jacksonville State University
The Relationship Between Changing Land Cover And Benthic Macroinvertebrate Diversity In Choccolocco Creek, Northeast Alabama, Kindall Brown
Theses
Land cover changes, driven by urbanization, agriculture, and deforestation, significantly affect the physical and chemical characteristics of water bodies at both the watershed and riparian levels. At the larger spatial scale, a stream’s surrounding watershed facilitates lateral inputs into the stream that are essential for biodiversity support, hydrological stability, and water quality. When a stream becomes disconnected from the lateral inputs due to urban or agricultural development, the morphology of the stream is significantly altered. On a smaller spatial scale, the riparian zone can act as a buffer to pollutants. The vegetation surrounding the stream bank promotes stability to the …
Offsetting,
2024
Singapore Management University
Offsetting, Paul Govind, Donna Houston, Michelle Mei Ling Lim, Andrew Mcgregor, Emily O'Gormon, Sandie Suchet-Pearson, Jonathan Symons
Research Collection Yong Pung How School Of Law
In Australia, the State of the Environment 2021 report (hereafter, SOE) revealed an unprecedented rate of biodiversity loss. 1 Yet development projects that will reduce biodiversity further continue to receive legal approval. Indeed, shortly after the release of the report, a new outer ring road was approved for construction in the state of Western Australia. 2 Land clearing undertaken as part of the project will result in significant loss of existing habitat for critically endangered western ringtail possums and endangered black cockatoos. This destruction was legitimized through the state government’s commitment to undertake “biodiversity offsetting,” whereby the loss of possum …
New Insights On Hybridization In Potamogeton Floridanus (The Florida Pondweed),
2024
University of South Alabama
New Insights On Hybridization In Potamogeton Floridanus (The Florida Pondweed), Kaitlyn R. Sampson
Graduate Theses and Dissertations (2019 - present)
Freshwater ecosystems are some of the most important and highest threatened habitats in the world, and aquatic plants play an important, but often-overlooked, role in maintaining them. Potamogeton is a diverse and ecologically important aquatic plant genus well known for taxonomic difficulty and rampant hybridization. lbis study aimed to 1) test the hypothesis that Potamogeton jloridanus (Florida pondweed) is a hybrid between P. oakesianus and P. pulcher, and 2) to investigate correlations in ecological conditions for the focal species. This study revealed the discovery of a new population of P. jloridanus in Big Coldwater Creek in Santa Rosa Co., FL, …
Establishing Marine Protected Areas In The Southern Ocean, Lessons For The Bbnj Agreement,
2024
Singapore Management University
Establishing Marine Protected Areas In The Southern Ocean, Lessons For The Bbnj Agreement, Nengye Liu
Research Collection Yong Pung How School Of Law
This paper first gives a brief overview of the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR)’s struggle to establish Antarctic Marine Protected Areas (MPAs). The paper then addresses the question: what lessons can countries learn from CCAMLR's experience in establishing high seas MPAs under the Biodiversity in Areas Beyond National Jurisdiction (BBNJ) Agreement? The paper finds that the final text of the BBNJ Agreement did largely reflect CCAMLR's experience when it comes to MPAs. This is particularly so with respect to 1) clarification of the relationship between conservation and use; 2) the interpretation and application of a …
Growing Urbanization In The Jammu Province Of Jammu And Kashmir, India: An Environmental And Social Interpretation,
2024
Government Degree College Surankote, Jammu and Kashmir, India
Growing Urbanization In The Jammu Province Of Jammu And Kashmir, India: An Environmental And Social Interpretation, Rani Mughal, Javed Manzoor, Rouf Ahmad Wagay
Journal of Bioresource Management
Urbanization is a global phenomenon with profound implications for both physical and social landscapes and plays a noteworthy role in the progression and advancement of human civilizations. Urbanization influences and changes the social, economic, political, and traditionalorganization of a society. This paper examines the process and consequences of urbanization in the Jammu province of J&K India, focusing on its physical transformation and social dynamics. This study employs a descriptive research approach to investigate the multifaceted aspects of urbanization by synthesizing data from various sources, including demographic surveys, interviews, and spatial analysis. The study showed that Jammu province is gradually proceeding …
Comparative Performance Of Modern Jumbo Maize Variety And Local Varieties In Fodder Production Under Different Nitrogen Levels,
2024
Department of Agronomy, The University of Agriculture Peshawar, Pakistan
Comparative Performance Of Modern Jumbo Maize Variety And Local Varieties In Fodder Production Under Different Nitrogen Levels, Haseeb Ahmad, Muhammad Arif, Zubair Ahmed Khan, Saifur Rehman, Ikram Ullah, Raja Akram Khan, Uzair Ahmed, Waleed Iqbal
Journal of Bioresource Management
A trial was carried out at Cereal Crop Research Institute Pirsabak, Pakistan by employing a Randomized Complete Block design that was repeated thrice to investigate the performance of different varieties of maize (Jalal, Kaptan and Jumbo) under four nitrogen levels (N1= 0, N2= 100, N3= 150, and N4= 200 kg ha−1). Variation was observed among maize varieties that affected silking and milking days with variety Jumbo recording the longest duration (62 and 80, respectively). Variety Jumbo also had higher leaf number (11.5), SPAD value (47), leaf area index (LAI) (3.4), Plant height (221 cm) and stem diameter (3.22 …
Behavioural Distributions Of Macrophytes In An Oxbow Lake, Dhir Beel With Reference To Its Water Quality In Assam, India,
2024
Department of Zoology, University of Science and Technology, Baridua, 9th Mile, Ri-Bhoi, Meghalaya, INDIA-793101
Behavioural Distributions Of Macrophytes In An Oxbow Lake, Dhir Beel With Reference To Its Water Quality In Assam, India, Arup Nama Das, D. K. Sharma
Journal of Bioresource Management
An Oxbow lake, Dhir Beel, situated in Western Assam, India, stands as a habitat for a plethora of plant and animal species, nurturing a vibrant ecosystem within its freshwater environs. This study sought to address concerns surrounding pollution, encroachment, siltation, and overfishing within Dhir Beel. Over a span of three years (2016-2019), samples were meticulously collected from five distinct sites to analyze both water quality and macrophyte populations. Employing the APHA method, the physico-chemical parameters of the water were evaluated, while a comprehensive identification process was undertaken to categorize the macrophytes. These aquatic plants, spanning dicots, monocots, and pteridophytes, were …
Limonoids Isolated From Chisocheton Pentandrus (Meliaceae) Stembarks And Its Cytotoxicity Towards Mcf-7 Breast Cancer Cell Line,
2024
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang 45363, Indonesia
Limonoids Isolated From Chisocheton Pentandrus (Meliaceae) Stembarks And Its Cytotoxicity Towards Mcf-7 Breast Cancer Cell Line, Dudi Runadi, Intan Hawina Anjari, Purnama Purnama, Nurlelasari Nurlelasari, Desi Harneti, Tri Mayanti, Harizon Harizon, Ace Tatang Hidayat, Supriatno Salam, Mohamad Nurul Azmi, Unang Supratman
Makara Journal of Science
Chisocheton is a large source of limonoids with various pharmacological effects, such as antiviral, antibacterial, antimalarial, antifungal, and cytotoxic activities. This study aimed to isolate, elucidate, and evaluate the cytotoxicity of limonoids from C. pentandrus stembarks. Isolation was carried out using various separation methods including extraction and column chromatography. Spectral data were analyzed by FT-IR, UV, DEPT 135°, 1H, 13C-NMR, and HRTOF-MS and compared with those previously reported to determine the chemical structure.The obtained limonoids were lasiocarpine (1), lasiocarpine B (2), pentandricine (3), and 16β-hydroxydysobinin (4); all of which were …
Biodiversity Conservation In Western China With Scientific And Technological Support: Current Status, Challenges, And Suggestions,
2024
Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Jiangxi Agricultural University, Nanchang 330045, China
Biodiversity Conservation In Western China With Scientific And Technological Support: Current Status, Challenges, And Suggestions, Fuwen Wei, Hang Sun, Jiaojun Zhu, Baoguo Li, Gexia Qiao, Shilong Chen, Jiang Zhu, Xiaoge Ping
Bulletin of Chinese Academy of Sciences (Chinese Version)
As a megadiverse country, China has made significant progress in biodiversity conservation in recent years. The western region is a critical area for biodiversity conservation in China, boasting rich species resources and a high proportion of endemic species. However, its ecosystems are fragile and vulnerable to the impacts of multiple factors like climate change and human activities. Scientific and technological support has played a vital supporting role in biodiversity conservation, providing comprehensive support from monitoring and assessment to restoration and decision-making through biodiversity surveys, scientific research, and the establishment of monitoring networks. Nevertheless, challenges remain, including gaps in taxa and …
South Carolina Master Naturalist Program Evaluation: A Mixed Methods Approach,
2024
Clemson University
South Carolina Master Naturalist Program Evaluation: A Mixed Methods Approach, Susan T. Guynn, James H. Blake, Nathan Nemire, Joe Bible
Journal of Extension
The South Carolina Master Naturalist Program provides nature-based education to citizen volunteers who will promote environmental stewardship and is offered at six host sites across the state. We conducted a mixed-methods evaluation (the integration of qualitative and quantitative data) of the South Carolina Master Naturalist Program. Overall, the South Carolina Master Naturalist Program is achieving its mission but there were some differences between host sites. We identified where there were differences and why those differences may exist. We make recommendations to help strengthen the program across all host sites in the areas of program fidelity, delivery, and administration.
Establishment Of Bacteroides In The Gut And Its Role In The Cystic Fibrosis Gut-Lung Axis,
2024
Dartmouth College
Establishment Of Bacteroides In The Gut And Its Role In The Cystic Fibrosis Gut-Lung Axis, Rebecca A. Valls
Dartmouth College Ph.D Dissertations
In the quest to understand the complex interplay between the gut microbiota and cystic fibrosis (CF), a disease characterized by chronic upper respiratory complications and an exacerbated proinflammatory response, our lab engaged in a collaborative study with Dartmouth-Hitchcock Medical Center (DHMC) to characterize the gut microbiota of pediatric CF patients. Initial analyses established a connection between gut microbial composition and respiratory health, particularly highlighting a scarcity of Bacteroides species compared to healthy controls. In following investigations, we utilized random forest models to understand how stool microbiota may influence clinical outcomes of these pediatric CF patients, including: age, upper respiratory infections, …
Fisheries Occasional Publication No.147 - Aquaculture Development Zones – Policy Position Relating To Permitted Alternative Species,
2024
Department of Primary Industries and Regional Development, Western Australia
Fisheries Occasional Publication No.147 - Aquaculture Development Zones – Policy Position Relating To Permitted Alternative Species, Department Of Primary Industries And Regional Development, Western Australia
Fisheries Occasional Publications
The purpose of this policy is to set out considerations relevant to the assessment of aquaculture proposals within Aquaculture Development Zones (ADZ) for species distinct from the group of species for which the ADZ was initially established (Alternative Species).
