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1 to 10 of 17 Results
Bird diversity in remnants of deciduous tropical forest in Central Mexico
Jan 15, 2025 - Mariusz Krzysztof Janczur Dataverse Bird Studies
ANONYMOUS; ANNYMOUS, 2022, "Bird diversity in remnants of deciduous tropical forest in Central Mexico", https://doi.org/10.7910/DVN/QKRK3S, Harvard Dataverse, V5
1. Place of study: Totláli Ecological Park, San Pablo Tejalpa, Zumpahuacan, Mexico 2. Data: Bird species captured by mist nets and recorded by point counts. 3. Goal: To compare bird diversity between a fragment of natural forest and park. 4. Goal: To compare bird diversity between survey methods.
Effects of sex and arbuscular mycorrhizal fungi on root and cladodia traits of Oputia robusta from a dioecious population from Central-Eastern Mexico
Oct 22, 2024 - Mariusz Krzysztof Janczur Mycorrhizae Dataverse
ANONYMOUS; ANONYMOUS, 2024, "Effects of sex and arbuscular mycorrhizal fungi on root and cladodia traits of Oputia robusta from a dioecious population from Central-Eastern Mexico", https://doi.org/10.7910/DVN/HZNZ2N, Harvard Dataverse, V1
On December 28 and 29 2019, we obtained 17 male and 17 female last-level (counting from soil level) cladodes which length ranged from 19 through 25 cm, from individuals identified and tagged by their sexual form in our previous studies. The collected cladodes were less than eleven months old, that is, they grew from buds produced by the mother clad...
Replication Data for: Optimal defense traits in plants living in environments with different productivities: extending Coley, Bryant and Chapin's model
Replication Data for: Optimal defense traits in plants living in environments with different productivities: extending Coley, Bryant and Chapin's model
Mar 8, 2024
Czekaj, Łukasz; Janczur, Mariusz Krzysztof, 2020, "Replication Data for: Optimal defense traits in plants living in environments with different productivities: extending Coley, Bryant and Chapin's model", https://doi.org/10.7910/DVN/H6OAVG, Harvard Dataverse, V3, UNF:6:IDzxbDZQ0TR7j5xIxdyU+w== [fileUNF]
We present a mathematical model to solve an Optimal Control Problem for the optimal energy allocation to growth, reproduction and the production of defensive substances in plants. The substances produced repeal herbivores.
Replication Data for: Are morphological traits of individuals of Junco phaeonotus associated with habitat disturbance and casually associated with infection by Coccidia?
May 8, 2022 - Mariusz Krzysztof Janczur Dataverse Bird Studies
Rosas Sánchez, Jessica Jael; Janczur, Mariusz Krzysztof; Nowakowski, Jaroslaw Krzysztof, 2021, "Replication Data for: Are morphological traits of individuals of Junco phaeonotus associated with habitat disturbance and casually associated with infection by Coccidia?", https://doi.org/10.7910/DVN/A46RVJ, Harvard Dataverse, V2, UNF:6:fL5PMCzHSr6AWTlxSt6Tvw== [fileUNF]
Morphometric traits, presence and load of Coccidia in faeces, in individuals of Junco phaeonotus from two habitats (farmland / cropland and fragmented forest) from Nevado de Toluca, Mexico, in the years 2018 and 2019. The dynamics of the meteorological variables and of the monthly and daytime bird number and parasite prevalence and load in individu...
Satellite photographs of the Abies religiosa forest and of deforested areas in Ejido Loma Alta, Nevado de Toluca, Mexico
Satellite photographs of the Abies religiosa forest and of deforested areas in Ejido Loma Alta, Nevado de Toluca, Mexico
Jun 29, 2021 - Mariusz Krzysztof Janczur Dataverse Bird Studies
Janczur, Mariusz Krzysztof; Carbajal-Valdés, Arturo F., 2021, "Satellite photographs of the Abies religiosa forest and of deforested areas in Ejido Loma Alta, Nevado de Toluca, Mexico", https://doi.org/10.7910/DVN/J4L4UC, Harvard Dataverse, V1
We compared the satellite photographs of four zones in the Nevado de Toluca volcano, Mexico, in the years 1973, 1979, 1986, 2003, 2009, and 2015.
Mariusz Krzysztof Janczur Dataverse Bird Studies(Universidad Autónoma del Estado de México)
Jun 29, 2021
Bird studies of the research group of Mariusz Krzysztof Janczur
Estimators of association of arbuscular mycorrhizal fungi with roots of two sexual forms of Opuntia robusta from Hidalgo State, Mexico
Estimators of association of arbuscular mycorrhizal fungi with roots of two sexual forms of Opuntia robusta from Hidalgo State, Mexico
May 24, 2021 - Mariusz Krzysztof Janczur Mycorrhizae Dataverse
Janczur, Mariusz Krzysztof; Solache-Ramos, Lupita Tzenyatze; León-Solano, Hector Javier, 2021, "Estimators of association of arbuscular mycorrhizal fungi with roots of two sexual forms of Opuntia robusta from Hidalgo State, Mexico", https://doi.org/10.7910/DVN/YVKXDE, Harvard Dataverse, V1, UNF:6:VEoxgBK85h9LI/BtWAyckw== [fileUNF]
We estimated que % of collonization oif the roots of two sexual forms of Opuntia robusta (female, hermahrodite individuals) by hyphae, the % root samples with arbuscles and with vesicles.
Replication data for: Implications of the existence of separated sexual forms of Opuntia robusta for plant defense hypotheses
Replication data for: Implications of the existence of separated sexual forms of Opuntia robusta for plant defense hypotheses
Mar 3, 2021
Janczur, Mariusz Krzysztof; González-Camarena, Emilio; Jenner, Bartosz, 2020, "Replication data for: Implications of the existence of separated sexual forms of Opuntia robusta for plant defense hypotheses", https://doi.org/10.7910/DVN/LERCFK, Harvard Dataverse, V2, UNF:6:GJKng/DxExj81K4HQurspg== [fileUNF]
Plant optimal defense hypothesis (ODH) predicts higher levels of defenses, lower damage, and lower investment in vegetative biomass in more costly sexual form and/or younger plant parts. The resource competition hypothesis (RCH) predicts slower growth, lower concentrations of defenses, and greater herbivory levels in more costly sexual form. In our...
Arbuscular mycorrhizal fungi estimators and soil traits from the rhizosphere of sexual forms of Opuntia robusta from a dioecious and a trioecious population
Feb 2, 2021 - Mariusz Krzysztof Janczur Mycorrhizae Dataverse
Janczur, Mariusz Krzysztof; Martínez Estrella, Daniel, 2020, "Arbuscular mycorrhizal fungi estimators and soil traits from the rhizosphere of sexual forms of Opuntia robusta from a dioecious and a trioecious population", https://doi.org/10.7910/DVN/BEVSXP, Harvard Dataverse, V2, UNF:6:VrLh1/4t3gUV1GniCQk8Xw== [fileUNF]
We associated the percentage of arbuscular mycorrhizal colonization, and the sexual form (female and male individuals) of Opuntia robusta in the rainy and dry season, with the physical-chemical characteristics of the soil to.
Sampling of female and male individuals of Opuntia robusta from a dioecious population for sex ratio
Feb 1, 2021 - Mariusz Krzysztof Janczur Mycorrhizae Dataverse
Janczur, Mariusz Krzysztof; Sandoval-Molina, Mario Alberto; Martinez-Estrella, Daniel, 2021, "Sampling of female and male individuals of Opuntia robusta from a dioecious population for sex ratio", https://doi.org/10.7910/DVN/LW24MD, Harvard Dataverse, V1, UNF:6:LbAqSSZOWAjkJx8V2x/Oiw== [fileUNF]
On March 18, 2017, we traced two 30 m wide, 300 and 430 m long transects, on the sidewalks in the CAD Botanical Garden. From February 18 through June 19, 2017, we counted all blossoming O. robusta plants found within the transect, and determined their sexual form based on flower morphology.
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