Indicators of Biodiversity of the Arboreal Component of the Farm Yuyucocha, Ibarra, Ecuador
Jorge Luis Cué García; Eduardo Chagna; Manolo Carrión; Hugo Vallejos (1); Carla Ipiales; Joselyn Lara; Patricio Navarrete; Alexis Noque; Nathaly Muño; Alex Meja; Jan Carlo Paillacho; Jerson Yamberla; Christian Toctaguano (2);
Abstract
Yuyucocha Farm belongs to the Technical University of the North, Ibarra, Ecuador, where practices of planting species of forest interest have been developed since their possession by the High Study House. Determine the biodiversity of the arboreal component of the same was the objective of the experience executed in the months of April and May of 2018. A census was made, registering all the trees of the farm with DAP (diameter at the height of 1.30 meters above ground level) ≥ 0.10 m and height ≥ 5.0 m. Margalef and Menhinicks Index of Wealth Indexes were calculated, as were Simpsons Diversity Indexes, Shannon-Wieners Diversity Index, Hills Diversity Numbers and Simpsons Dominance Index. We also calculated the Pielou and Hill equitability indices and the relative dominance of the species using the structural index. It was found that the introduced species represent 73.6% of the total arboreal component, where the Margalef (DMg) and Menhinick (DMn) Indexes show values of 3.23 and 0.78, respectively. The Shannon index of 2.22 indicates a medium diversity, while the Simpson index of 0.18 offers the non-existence of dominant species, but the calculation of the Simpson diversity index, with the value of 0.82, allows to value the biodiversity as tending to high. On the other hand, while Hills numbers, N1 equal 9.21 and N2 to 5.56, estimate the possibility of finding the number of abundant and very abundant species. The equitability shows a behavior of medium to low, according to the Pielou (E) and Hill indexes, with values of 0.48 and 0.24, respectively. The relative dominance of the species, as an expression of the Structural Index, has a significant correlation with the number of individuals, with a value of r = 0.963, while with respect to the DAP, no significance was found in the value of r = 0.278.
Keywords
References
Aguirre, Z. (2013). Guía de Métodos para Medir la Biodiversidad. Universidad Nacional de Loja. https:// hofreaguirre.files.wordpress.com/2012/03/guia-para-medicic3b3n-de-la-biodiversidad- octubre-7-2011.pdf
Alcolado, P. M. (1998) Conceptos e ndices relacionados con la diversidad. Avicennia, 8(9):7-21. https://www.researchgate.net/prole/Pedro_Alcolado/publication/265963780_Conceptos_e_indices_relacionados_con_la_diversidad/links/54662c150cf25b85d17f5abd/Conceptos-e- indices-relacionados-con-la-diversidad.pdf
Cadena, S. A. y Enrque M. G. (2013). Efecto de azolla sp., en la productividad y mejoramiento del suelo en la Granja Experimental Yuyucocha, Imbabura. Tesis previa a la obtención del Ttulo de Ingenieras en Recursos Naturales Renovables. Universidad Técnica del Norte. http://repositorio.utn.edu.ec/bitstream/123456789/2068/1/03%20RNR%20164%20TESIS.pdf
Cadotte, M. W.; Franck, R.; Rea, L. y Lovett, J. (2002). Tree and shrub diversity and abundance in fragmented littoral forest of southeastern Madagascar. Biodiversity and Conservation 11: 1417–1436. Available at: https://link.springer.com/article/10.1023/A:1016282023542
Campo, A. M.; Duval, V. S. (2014). Diversidad y valor de importancia para la conservación de la vegetación natural. Parque Nacional LihuCalel (Argentina). Anales de Geografía 34(2): 25-42. Available at: https://revistas.ucm.es/index.php/AGUC/article/download/47071/44140https:// revistas.ucm.es/index.php/AGUC/article/download/47071/44140
Chao, A.; Jost, L. (2012). Coverage-based rarefaction and extrapolation: standardiing samples by completeness rather tan sie Ecology, 93(12), 2533-2547.
Chao, A.; Gotell, N. I.; Hsieh, T. C.; Sander, E. L.; Ma, K. H.; Colwell, R. K.; Ellison, A. M. (2014). Rarefaction and extrapolation with Hill numbers: a framework for sampling and estimation in species diversity studies. Ecological Monographs, 84(1):45–67. Available at: https://www.uvm. Available: edu/ngotelli/manuscriptpdfs/ChaoHill.pdf
Cordero, P.; Vanegas, S.; Hermida, M. G. (2015). La biodiversidad urbana como sntoma de una ciudad sostenible. Estudio de laona del Yanuncay en Cuenca, Ecuador Maskana, 6(1): 107 – 130. Available at: https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/479
Correa, P.; de la Barrera F. (2014). Anlisis de la estructura y de la composición del arbolado en parques delrea metropolitana de Santiago (2014) Chloris chilensis 17(1): sin paginado. http://www.chlorischile.cl/gbo/gbo4/publication/gbo4-es-hr.pdf
Trejo, I.; Diro, R. (2002). Floristic diversity of Mexican seasonally dry tropical Forests. Biodiversity and Conservation. 11: 2063–2048. https://link.springer.com/article/10.1023/A:1020876316013
Facebook
Google+
Twitter
LinkedIn
Mendeley
StumbleUpon
CiteULike
Reddit
Email