Carlos E. Valdivia

Dr. Carlos E. Valdivia

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Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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8 November 2021 in Diversity
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Journal Article
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LVLorena Vieli
Lorena Vieli
MMMaureen Murúa
Maureen Murúa
LFLuis Flores-Prado
Luis Flores-Prado
GCGastón O. Carvallo
Gastón O. Carvallo
CVCarlos E. Valdivia
Carlos E. Valdivia
Francisco E. FontúrbelFrancisco E. Fontúrbel
Francisco E. Fontúrbel
In the last decades, pollinators have drastically declined as a consequence of anthropogenic activities that have local and global impacts. The food industry has been expanding intensive agriculture crops, many of them dependent on animal pollination, but simultaneously reducing native pollinator habitats. Chile is a good example of this situation. Chile is becoming an agro-alimentary powerhouse in Latin America, where intensive agriculture expansion is performed at the expense of natural lands, posing a major threat to biodiversity. Here, we discussed the drivers responsible for the decline of pollinators (including habitat loss, pesticides, invasive species, and climate change) and its synergistic effects. This is particularly critical considering that Chile is a hotspot of endemic bee species locally adapted to specific habitats (e.g., Mediterranean-type ecosystems). However, there is a lack of data and monitoring programs that can provide evidence of their conservation status and contribution to crop yields. Based on our analysis, we identified information gaps to be filled and key threats to be addressed to reconcile crop production and biodiversity conservation. Addressing the local context is fundamental to undertake management and conservation actions with global impact.

6 October 2016 in Flora
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Journal Article
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CVCarlos E. Valdivia
Carlos E. Valdivia
JCJosé P. Carroza
José P. Carroza
JOJosé I. Orellana
José I. Orellana

23 December 2024 in Diversity
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Journal Article
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OLOnaylis Triay Limonta
Onaylis Triay Limonta
GHGerardo G. Hechavarría-García
Gerardo G. Hechavarría-García
CVCarlos E. Valdivia
Carlos E. Valdivia
CNConstanza Napolitano
Constanza Napolitano
Seed dispersal by frugivorous mammals is crucial for plant reproduction, but anthropogenic disturbances can disrupt this process. However, there is a lack of research on mammalian seed dispersal in anthropogenic habitats, with few systematic literature reviews available. In order to address this gap, a review of scientific literature published since 1990 was conducted. A total of 275 articles from 52 countries, predominantly from South America, were found for the review. These articles contained information on 764 mammal species from 54 families, with Canidae being the most studied. The studies focused on various aspects of seed dispersal, including animal visitation rates (60%), seed quantity in faeces (78.9%), seed viability (49.1%), germination (49.5%), and seedling recruitment. However, only a small percentage of the studies examined the impacts of human disturbance on seed dispersal (5.8%), particularly the quantity of seeds dispersed. There is a need for further studies that integrate the analysis of seed dispersal effectiveness by mammals while considering the effects of human disturbances, particularly in areas with high plant and mammal diversity threatened by human activities.


1 October 2018 in Annales Botanici Fennici
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Journal Article
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CVCarlos E. Valdivia
Carlos E. Valdivia
JOJosé I. Orellana
José I. Orellana
CMCarlos Morales-Paredes
Carlos Morales-Paredes
Nectar robbing by the ant Camponotus distinguendus was observed in flowers of Embothrium coccineum (Proteaceae), a tree mainly pollinated by hummingbirds. We hypothesized that robbing would reduce the amount of nectar, affecting the foraging behaviour of floral visitors and reducing seed production. Nectar robbing affected one-third of mature tree blossoms and 93.3% of trees. This reduced the amount of nectar to about half. Foraging behaviour of floral visitors included pollinating visits to consume nectar and pollen, primary and secondary nectar robbing, and nectar theft. We found no effect of nectar robbing by C. distinguendus on seed production in E. coccineum, which was sparse and completely dependent on legitimate pollinator visits, mostly performed by the green-backed firecrown Sephanoides sephaniodes. Determining the effects of nectar robbing by ants on the reproduction of plants is important to understand the dynamics of plant-animal interactions in the temperate forests of Chile.

1 June 2019 in Gayana. Botánica
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Journal Article
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AHAna María Humaña
Ana María Humaña
AJAlberto Jiménez
Alberto Jiménez
CVCarlos E. Valdivia
Carlos E. Valdivia
En general, existen cuatro posibles vías para la producción de semillas (Richards 1997). La agamospermia es la vía reproductiva asexual mediante la cual las semillas son producidas en ausencia de polen. La autogamia es la reproducción mediante óvulos autofertilizados con polen producido por la misma flor, pero sin la mediación de polinizadores. La geitonogamia es la producción de semillas a través de la fertilización de los óvulos con polen producido por el mismo individuo, pero transportado por polinizadores. Finalmente, la xenogamia es la producción de semillas mediante la fecundación de los óvulos con polen proveniente de otros individuos de la población (Richards 1997).