Estrategias reproductivas de vertebrados en ambientes de alta predación
DOI:
https://doi.org/10.70577/h9pfad28Palabras clave:
estrategias reproductivas, vertebrados, depredación, fecundidad, supervivencia juvenil, adaptación ecológica.Resumen
La creciente presión predatoria en ecosistemas terrestres, acuáticos e insulares ha incrementado la vulnerabilidad reproductiva de diversas especies de vertebrados, afectando la supervivencia de huevos, larvas y crías. Ante esta problemática, el estudio tuvo como objetivo analizar las estrategias reproductivas desarrolladas por vertebrados en ambientes de alta predación y evaluar la influencia de variables ecológicas sobre el éxito reproductivo. Se aplicó un enfoque cuantitativo, con diseño no experimental longitudinal y comparativo, utilizando información proveniente de organismos internacionales y literatura científica especializada. Se emplearon regresión lineal múltiple, análisis MANOVA y correlación de Spearman. Los resultados evidenciaron que los anfibios registraron la mayor fecundidad promedio (1.240 huevos), pero también la mayor mortalidad juvenil (68.4%), mientras los mamíferos presentaron la menor fecundidad (2.8 crías) y la mayor supervivencia juvenil (74.6%) debido al cuidado parental prolongado. Además, la densidad de depredadores redujo significativamente la supervivencia de crías (β = -0.64), mientras la disponibilidad de refugios incrementó el éxito reproductivo (β = 0.58). Se determinó que los vertebrados desarrollan respuestas reproductivas diferenciadas para adaptarse a ecosistemas con elevada presión ecológica.
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Derechos de autor 2023 Luisa Fernanda Naranjo Guerrero (Autor/a)
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