Essays about: "zoology"

Showing result 1 - 5 of 7 essays containing the word zoology.

  1. 1. The Extended Maximum Likelihood Estimation for Monotone Probability Mass Function with Application using Forensic Data

    University essay from Lunds universitet/Matematisk statistik

    Author : Tiancheng Ma; [2022]
    Keywords : Statistical Inference Statistics Maximum Likelihood Estimation Non-parametric Estimation; Mathematics and Statistics;

    Abstract : This paper presents solutions to the modelling of frequency data of species labels, but the data is incomplete in the sense that some rarely-occurring species labels give zero observed frequency. The data can be modelled by a monotone probability function with parameters to be estimated, and yet, due to the order constraints and the incomplete data, using conventional parameter estimation methods will cause trouble. READ MORE

  3. 2. Taxonomy of the Rufous-naped lark (Mirafra africana) complex based on song analysis

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Zooekologi

    Author : Marianne Kristine Nymark; [2021]
    Keywords : rufous-naped; lark; mirafra; africana; systematics; taxonomy; ecology; zoology; song analysis; subspecies; integrative taxonomy; clinal variation; LDA; post hoc Tukey HSD test; Raven Pro;

    Abstract : The Rufous-naped lark Mirafra africana complex consists of 22 subspecies spread across the African continent. Several of the subspecies have recently been suggested to potentially be treated as separate species. In this study a comparative analysis was done on the song from seven of the subspecies: M. a. READ MORE

  4. 3. A deep dive into the Prinia atrogularis complex : A tale of birds and taxonomy

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Institutionen för ekologi och genetik

    Author : Damon Groot; [2021]
    Keywords : bird; birds; ecology; zoology; taxonomy; systematics; vocalization; biodiversity; prinia;

    Abstract : The taxonomy of the taxa in the Prinia atrogularis-khasiana-superciliaris complex has changed several times in recent history. To this day, different world bird lists classify this complex as 1–3 species. These classifications are based mainly on morphological comparisons of museum specimens. READ MORE

  5. 4. Visual neurons with different shapes: investigation of the relationship between morphology and function

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Love Federley Ottosson; [2020]
    Keywords : Biology and Life Sciences;

    Abstract : In this project, morphological differences between motion detector neurons in Drosophila melanogaster were compared and used to speculate regarding their function. This was achieved by comparing properties such as diameter, height, width, bifurcation, asymmetry and terminal degree. READ MORE

  6. 5. Analyzing Factors Influencing Reproductive Success of the Mountain Chicken : Nordens Ark Captive Breeding Program

    University essay from Högskolan i Skövde/Institutionen för biovetenskap

    Author : Chad Donaldson; [2019]
    Keywords : frog; frogs; mountain chicken; mountain chicken frog; leptodactylus; fallax; herpetology; amphibian; amphibians; multiple linear regression; statistical analysis; Nordens Ark; captive breeding; zoo; zoology; conservation; endangered species; grodor; groda; kycklinggroda; Nordens Ark; amfibier; zoologi; herpetologi; analys; hotade arter; bevarande; avel;

    Abstract : Amphibians globally are declining with roughly a third facing extinction due primarily to threats linked to human impacts. One way in which this is being combated is by captive breeding programs. READ MORE