The hidden costs of living in a transformed habitat: Ecological and evolutionary consequences in a tripartite mutualistic system with a keystone mistletoe

Fontúrbel, Francisco E.; Bruford, Michael William; Salazar, Daniela A.; Cortés‐Miranda, Jorge; Vega‐Retter, Caren

doi:10.1016/j.scitotenv.2018.10.125

Cited by 14 publications

(33 citation statements)

References 71 publications

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“…The negative impacts of anthropogenic habitat degradation on genetic diversity have been reported (e.g., Fontúrbel et al. ). However, we failed to detect a global effect on genetic diversity, which may have resulted for 2 nonmutually exclusive reasons.…”

Section: Discussionmentioning

confidence: 99%

“…; Fontúrbel et al. ), which reduces plant recruitment and may result in local extinction (Rodríguez‐Cabal et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…), but there are negative genetic consequences because allelic richness is reduced and interindividual relatedness increases (Fontúrbel et al. ). Conversely, the absence of genetic variation in rare species may be due to reproduction strategies with low dependence on specialized ecological interactions.…”

Section: Discussionmentioning

confidence: 99%

“…However, habitat degradation (i.e., reduction in habitat quality due to changes in vegetation structure, resource availability, and microclimate conditions) has no area or edge changes, but it can alter genetic diversity and gene‐flow patterns (e.g., Fontúrbel et al. ) by altering the diversity, abundance, or behavior of pollinators and seed dispersers (Fontúrbel et al. ).…”

Section: Introductionmentioning

confidence: 99%

“…Given these factors, assessments of the differential effects of habitat fragmentation and degradation on plant genetic diversity may need to consider that, for instance, some species are not genetically affected by disturbance (e.g., Ahrens & James ), whereas other species show positive numerical effects (i.e., more plant individuals found in disturbed habitats) that may have negative genetic consequences (e.g., reduced genetic diversity and increased relatedness [Fontúrbel et al. ]). Plant populations may respond to habitat fragmentation and degradation in complex but subtle ways, making it difficult to predict effects (Lowe et al.…”

Section: Introductionmentioning

confidence: 99%

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Meta‐analysis of the differential effects of habitat fragmentation and degradation on plant genetic diversity

González

Gómez‐Silva

Ramı́rez

et al. 2019

Conservation Biology

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Genetic diversity is a key factor for population survival and evolution. However, anthropogenic habitat disturbance can erode it, making populations more prone to extinction. Aiming to assess the global effects of habitat disturbance on plant genetic variation, we conducted a meta-analysis based on 92 case studies obtained from published literature. We compared the effects of habitat fragmentation and degradation on plant allelic richness and gene diversity (equivalent to expected heterozygosity) and tested whether such changes are sensitive to different life-forms, life spans, mating systems, and commonness. Anthropogenic disturbance had a negative effect on allelic richness, but not on gene diversity. Habitat fragmentation had a negative effect on genetic variation, whereas habitat degradation had no effect. When we examined the individual effects in fragmented habitats, allelic richness and gene diversity decreased, but this decrease was strongly dependent on certain plant traits. Specifically, common long-lived trees and self-incompatible species were more susceptible to allelic richness loss. Conversely, gene diversity decreased in common short-lived species (herbs) with self-compatible reproduction. In a wider geographical context, tropical plant communities were more sensitive to allelic richness loss, whereas temperate plant communities were more sensitive to gene diversity loss. Our synthesis showed complex responses to habitat disturbance among plant species. In many cases, the absence of effects could be the result of the time elapsed since the disturbance event or reproductive systems favoring self-pollination, but attention must be paid to those plant species that are more susceptible to losing genetic diversity, and appropriate conservation should be actions taken. Meta-Análisis de los Efectos Diferenciales de la Fragmentación y Degradación del Hábitat sobre la Diversidad Genética de las PlantasResumen: La diversidad genética es un factor clave para la supervivencia y evolución de las poblaciones. Sin embargo, la perturbación antropogénica de los hábitats puede dañar esta diversidad, volviendo a las poblaciones más susceptibles a la extinción. Con el objetivo de evaluar los efectos globales de la perturbación del hábitat sobre la variación genética de las plantas, realizamos un meta-análisis basado en 92 estudios de caso obtenidos de la literatura publicada. Comparamos los efectos de la degradación y fragmentación del hábitat sobre la riqueza de alelos y la diversidad de genes (equivalente a la heterocigosidad esperada) de las plantas y probamos si dichos cambios son sensibles para diferentes formas de vida, tiempos de vida, sistemas de apareamiento y preponderancia. La perturbación antropogénica tuvo un efecto negativo sobre la riqueza de alelos, pero no sobre la diversidad genética. La fragmentación del hábitat tuvo un efecto negativo sobre la variación genética, mientras que la degradación del hábitat no tuvo efecto. Cuando examinamos los efectos individuales en los hábitats fragmentados, Article...

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Section: Discussionmentioning

confidence: 99%

“…; Fontúrbel et al. ), which reduces plant recruitment and may result in local extinction (Rodríguez‐Cabal et al. ).…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Meta‐analysis of the differential effects of habitat fragmentation and degradation on plant genetic diversity

González

Gómez‐Silva

Ramı́rez

et al. 2019

Conservation Biology

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Effects of selective logging on genetic diversity and population structure of a keystone mistletoe

Fontúrbel,

González‐Ancin,

Rojas‐Hernández

et al. 2023

Population Ecology

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The effects of habitat degradation remain not fully understood. A recent study reported low effects of habitat degradation on plant genetic diversity but indicates that reduction in habitat quality could impact it as well as gene flow indirectly via ecological interactions. Selective logging is a way of habitat degradation, but studies examining its effects on plant genetic diversity on non‐logged forest plant species are relatively scarce. Using 3470 single‐nucleotide polymorphisms, we assess the effects of different selective logging intensities on the genetic diversity of 66 individuals of a keystone mistletoe (Tristerix corymbosus). We also examined the possible relationship with its seed disperser (Dromiciops gliroides) abundance in three sites of the temperate rainforests of southern Chile, with different levels of selective logging intensity. Our results show that selective logging increases allelic richness and inbreeding in this mistletoe; inbreeding increased with selective logging intensity, and heterozygosity decreased with D. gliroides abundance. While wood extraction seems to positively affect T. corymbosus genetic diversity, its long‐term consequences—such as increased inbreeding—are yet to be assessed in future studies.

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Bird species use of Tapinanthus dodoneifolius mistletoes parasitising African locust bean trees Parkia biglobosa in Amurum Forest Reserve, Nigeria

et al. 2021

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The hidden costs of living in a transformed habitat: Ecological and evolutionary consequences in a tripartite mutualistic system with a keystone mistletoe

Abstract: 2019. The hidden costs of living in a transformed habitat: ecological and evolutionary consequences in a tripartite mutualistic system with a keystone mistletoe. Science of the Total Environment 651 (P2) , pp.

Cited by 14 publications

References 71 publications

Meta‐analysis of the differential effects of habitat fragmentation and degradation on plant genetic diversity

Meta‐analysis of the differential effects of habitat fragmentation and degradation on plant genetic diversity

Effects of selective logging on genetic diversity and population structure of a keystone mistletoe

Bird species use of Tapinanthus dodoneifolius mistletoes parasitising African locust bean trees Parkia biglobosa in Amurum Forest Reserve, Nigeria

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