Ecological consequences of an unusual simultaneous masting of <i>Araucaria araucana</i> and <i>Chusquea culeou</i> in North‐West Patagonia, Argentina

Milesi, Fernando A.; Guichón, M. Laura; Monteverde, Martín; Piudo, Luciana; Sanguinetti, Javier

doi:10.1111/aec.12489

Cited by 8 publications

(4 citation statements)

References 42 publications

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“…This is in contrast to lowland irrigated rice cropping, which is usually conducted over much larger land areas (>5 ha) and where rodent pest numbers can be facilitated by growing 2-3 crops per annum. Rodent trap success in our study is similar to that observed in upland areas of Laos (Brown and Khamphoukeo, 2010;Jäkel et al, 2017Jäkel et al, , 2016 and other forest habitats in Uganda, Argentina and Madagascar (Kasangaki et al, 2003;Milesi et al, 2017;Stephenson, 1994). compared to 2010, resulting in slightly later harvests during 2010 (Holland et al, 2015).…”

Section: Discussionsupporting

confidence: 85%

Impact of trap barrier systems on rodent damage to upland rice cropping systems during bamboo masting events

Chakma

Sarker

et al. 2019

Crop Protection

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Synchronous bamboo masting events are well-known to cause rodent population outbreaks. In South Asia, Melocanna baccifera undergoes semelparous masting every 58 years leading to large rodent outbreaks and nearly 100% crop losses. Current crop protection methods used to control rodent outbreaks are largely based on large-scale use of chronic and acute poisons. Non-chemical control methods, such as the use of trap barrier systems (TBS), could be effective in such outbreak situations. However, TBS is currently used in lowland irrigated rice cropping systems, and thus would need to be evaluated and adapted to the upland rice production systems commonly found in the areas affected by bamboo masting induced rodent outbreaks. In this study we carried out field trials over two cropping seasons (2009 and 2010) in the Ruma area of the Chittagong Hill Tracts, Bangladesh during an on going bamboo masting event. Rodent activity was measured through active burrow counting in TBS fenced and unfenced rice crop fields. No rodent activity was found in TBS fenced fields in 2009, with some limited activity in TBS fenced fields in 2010. In 2010, the mean number of active burrows in unfenced fields was 8.66/ha, compared to 1.8/ha in the TBS sites. Rodent damage was measured by counting rice tillers cut by rodents, with no damage observed in TBS fenced fields in 2009, with some limited damage in TBS fenced fields in 2010 (0.26% damage), whilst unfenced field tiller damage was 3.2% during 2009 and 1.77% during 2010. The main rodent species captured by multi-capture traps in the TBS fences were Rattus rattus (70%), Mus musculus (19%), Rattus nitidus (5%) and Cannomys badius (5%). Rodent capture rates and crop damage were much lower than expected, which is arguably explained by an absence of rodent outbreaks in the selected communities, despite bamboo masting occurring in the surrounding forests around the rice fields. The using of TBS during the rodent outbreaks followed by Melocanna bamboo flowering is discussed in terms of the cost-benefits to prevent rodent damage in upland rice cropping systems.

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Section: Discussionsupporting

confidence: 85%

Impact of trap barrier systems on rodent damage to upland rice cropping systems during bamboo masting events

Chakma

Sarker

et al. 2019

Crop Protection

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“…Entre 2020 y 2030, frente a la próxima floración de los bambúes, esta especie podría experimentar un riesgo elevado de escasez de alimento en su hábitat fragmentado, sin posibilidad de traslado a zonas circundantes. En América del Sur, varias especies de aves especialistas en bambúes sufren una fluctuación marcada en sus fuentes de hábitat y de alimento (Areta et al 2009(Areta et al , 2013(Areta et al , 2016Areta and Cockle 2012;Cockle and Areta 2013;Milesi et al 2017).…”

Section: C�� unclassified

“…La floración y la fructificación masiva de una especie de bambú produce grandes cantidades de semillas que quedan disponibles en el ambiente para la fauna granívora nativa, en su mayoría roedores (González and Donoso 1999). Estos disfrutan de este extraordinario suministro de alimento, lo cual provoca que aumente aceleradamente su densidad poblacional; ello desencadena un fenómeno conocido en todo el planeta, y que en América del Sur recibe el nombre de 'ratadas' (Gallardo and Mercado 1999;Jaksic and Lima 2003;Milesi et al 2017;Murúa et al 1996;Piudo et al 2005;Piudo and Monteverde 2016). Las ratadas y su relación con las floraciones masivas de bambúes se documentaron en la literatura desde el 1800 (Jaksic and Lima 2003).…”

Section: ₂₆₇unclassified

Muerte por reproducción sexual: El caso (sin resolver) de la floración de los bambúes

Guerreiro

Vega

2023

Ecol. Austral

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R��.Los bambúes pertenecen a la familia de los pastos (o Poaceae). Existen 1698 especies de bambúes leñosos y herbáceos distribuidos alrededor del mundo en selvas y en bosques tropicales, subtropicales y templados. En nuestro país habitan cinco géneros y 23 especies de bambúes leñosos nativos. El aspecto más desconocido de los bambúes leñosos es su fenología reproductiva. Aunque se han descripto cuatro tipos de floración principales, las especies de bambúes más interesantes son las que poseen un patrón de floración masivo y cíclico luego de un período largo de crecimiento vegetativo. Dichos eventos de floración masiva ocurren a intervalos aproximadamente regulares, y luego de ellos, los individuos que florecen, mueren. El objetivo de esta revisión es proporcionar una muestra informativa del conocimiento actual de la floración de los bambúes, con énfasis en las especies nativas de la Argentina. Al día de hoy se conoce la duración aproximada del ciclo de vida de la mayoría de las especies de bambúes leñosos de nuestro país, sobre la base de una extensa búsqueda bibliográfica y de una revisión de las colecciones de los principales herbarios nacionales e internacionales. En la mayoría de las especies, los ciclos de vida medios son múltiplos de 15-16 años, y el ciclo de 30 años es el más habitual. En este trabajo se describen las principales hipótesis sobre las fuerzas evolutivas que conducen a los bambúes a florecer, producir semillas y morir de forma sincrónica. Asimismo, se discuten los factores ambientales, genéticos y la combinación de ambos, propuestos como posibles 'causas' de este atípico patrón de floración. Finalmente, se enumeran las consecuencias ambientales y sociales de este fenómeno.[Palabras clave: ciclos de vida, consecuencias ambientales y sociales, determinantes ambientales, determinantes genéticos, sincronía reproductiva] A��. Death by sexual reproduction: The (unsolved) case of bamboo flowering. Bamboos belong to the grass family (or Poaceae). There are 1698 bamboo species distributed around the world in tropical, subtropical and temperate jungles and forests. In our country, there are five native genera that comprise 23 species. The least known characteristic of the woody bamboos is their flowering phenology. Four main types of flowering pa�erns have been described. However, the most interesting are those bamboo species that show a massive and cyclical flowering pa�ern, after a long period of vegetative growth. Such mass flowering events occur at roughly regular intervals and are followed by the death of the flowering individuals. The goal of this review is to provide an informative sample of the current knowledge of bamboo flowering, with an emphasis on the species native to Argentina. Currently, the approximate duration of the life cycle of most woody bamboo species in our country is known, based on a review of the collections of the most important national and international herbaria and an extensive bibliographic search. In most species, the average life cycles are multiples of 15-16 ...

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“…LOS IMPACTOS DE LA FLORA Y FAUNA EXÓTICA INVASORA EN EL ECOSISTEMA DEL PEWÉN La invasión de fauna y flora exóticas ha captado la preocupación de científicos y pobladores más recientemente. Entre la fauna, se han estudiado principalmente las interacciones entre el pewén y la granivoría por el jabalí (Sus scrofa, Linneaus, 1758) y por la rata noruega (Rattus norvegicus, Berkenhout, 1769) (Skewes et al 2007, Sanguinetti y Kitzberger 2010, Tella et al 2016, Milesi et al 2017. Estas especies se distribuyen sobre gran parte del ecosistema, incluso en bosques sin actividades humanas, y consumen una gran proporción de semillas (e.g.…”

Section: Efectos De La Herbivoría Y Granivoría Del Ganado Y Del Human...unclassified

Información científica clave para la gestión y conservación del ecosistema biocultural del Pewén en Chile y Argentina

Sanguinetti,

Ditgen,

Donoso-Calderón

et al. 2023

Bosque (Valdivia)

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The forest of Araucaria araucana ("pewen" in Mapuche language), with its associated species of the genus Nothofagus, is unique from an evolutionary, biological and sociocultural point of view. Due to the interdependence and interrelation with the Mapuche-Pewenche people, it is considered a biocultural ecosystem. This work is a comprehensive binational review of current scientific information applicable to its management and conservation. The scientific community contributed with significant advances in the knowledge of: a) the interrelationships within and significance of this biocultural ecosystem; b) the regional genetic diversity; c) the fire regimen, its main drivers, its role in forest dynamics, and the recovery capacity of biodiversity in the face of different burn severities; d) the ecological role of seed production and its unusual interactions with granivorous fauna and cavity nesters; e) the decline and death of the canopy, due to environmental stress and the emergence of new pewen pathogens; f) the consequences of the invasion of pines and exotic mammals that alter the biological interactions and the original ecological processes, and g) the effects of cattle ranching and overexploitation of firewood and pine nuts on ecological integrity and biodiversity. This knowledge is considered essential to strengthen policies and strategies for protection, conservation, and management of this ecosystem, which is endemic, rare, regionally threatened, and globally declared endangered. Considering the identified problems, it is imperative to achieve social empowerment of the Mapuche-Pehuenche people, intercultural respect, and enforcing public policies for the conservation and sustainable use of these forests.

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Ecological consequences of an unusual simultaneous masting of Araucaria araucana and Chusquea culeou in North‐West Patagonia, Argentina

Cited by 8 publications

References 42 publications

Impact of trap barrier systems on rodent damage to upland rice cropping systems during bamboo masting events

Impact of trap barrier systems on rodent damage to upland rice cropping systems during bamboo masting events

Muerte por reproducción sexual: El caso (sin resolver) de la floración de los bambúes

Información científica clave para la gestión y conservación del ecosistema biocultural del Pewén en Chile y Argentina

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