scholarly journals Refaunation and the reinstatement of the seed-dispersal function in Gorongosa National Park

2016 ◽  
Vol 31 (1) ◽  
pp. 76-85 ◽  
Author(s):  
Marta Correia ◽  
Sérgio Timóteo ◽  
Susana Rodríguez-Echeverría ◽  
Alban Mazars-Simon ◽  
Ruben Heleno
2018 ◽  
Vol 7 (2) ◽  
pp. 29-42
Author(s):  
S. karimi ◽  
M.R. Hemami ◽  
M. Tarkesh Esfahani ◽  
Ch. Baltzinger ◽  
◽  
...  

2020 ◽  
Vol 4 (1) ◽  
pp. 56-60
Author(s):  
Bed Bahadur Khadka ◽  
Babu Ram Lamichhane

In riverine forest of Chitwan National Park, Nepal, Bhellar or trewia (Trewia nudiflora) is one of the most abundant tree species. Similarly, chital (Axis axis) is the most abundant and widely distributed deer species. We documented the potential role of chital in seed dispersal of trewia tree in Chitwan. We observed the trewia seeds regurgitated by chital at the Gharial Conservation and Breeding Center (GCBC), Kasara, Chitwan. The trewia seeds were recorded the following morning of the chital sheltering the GCBC. A detailed study is suggested to understand trewia the seed germination success and trewia-chital relationship.


2013 ◽  
pp. 103-114 ◽  
Author(s):  
Mónica A. Ramírez ◽  
Nelson F. Galvis ◽  
Sergio A. Vargas ◽  
José Julián Léon ◽  
Edgar F. Cifuentes ◽  
...  

2018 ◽  
Vol 32 (12) ◽  
pp. 2742-2752 ◽  
Author(s):  
Daniel García ◽  
Isabel Donoso ◽  
Javier Rodríguez‐Pérez

2015 ◽  
Vol 7 (4) ◽  
Author(s):  
Kaloantsimo Sarah Chen ◽  
Jun Qing LI ◽  
Jean Rasoarahona ◽  
Fousseni Folega ◽  
Christophe Manjaribe
Keyword(s):  

2018 ◽  
Vol 28 (4) ◽  
pp. 294-302 ◽  
Author(s):  
Sorour Karimi ◽  
Mahmoud-Reza Hemami ◽  
Mostafa Tarkesh Esfahani ◽  
Hossein Akhani ◽  
Christophe Baltzinger

AbstractLarge animals tend to disperse seeds over long distances via ingestion and defecation due to their large home range and capacity to move among different habitats for feeding. The aim of this study was to investigate the potential of endozoochorous seed dispersal by five herbivores: Ovis vignei, Capra aegagrus, Gazella subgutturosa, Cervus elaphus, Capreolus capreolus and two omnivores: Sus Scrofa and Ursus arctos in the Golestan National Park, northeast of Iran, by a greenhouse germination experiment. A total of 3107 seedlings belonging to 154 different plant taxa were germinated from 655 dung samples collected in three different habitats. Plant families that most frequently germinated were Poaceae and Brassicaceae. Urtica dioica was the most abundant germinating seed, accounting for 20% of all the seedlings recorded in our dung samples, whereas the most frequently observed species was Portulaca oleracea, which occurred in 24% of our samples. We showed that 54% of the seeds germinating were dispersed by only one of the mammals studied. Herbs and graminoids were the most frequently dispersed growth forms by the herbivores and the wild boar, whereas brown bears mostly dispersed shrubs. The seedling composition in the dung samples was strongly correlated with the local flora especially for non-selective feeders, like red deer. The differences observed in the number of plants and frequency of different growth forms dispersed among the studied mammals reflect their body size, digestive physiology, and dietary and habitat preferences. Our findings highlight the different and complementary roles of large herbivores and omnivores as long-distance seed dispersal vectors.


2017 ◽  
Vol 33 (3) ◽  
pp. 232-236 ◽  
Author(s):  
Onja H. Razafindratsima

Abstract:Seed-consuming rodents are increasingly recognized for their roles in the maintenance of tree species diversity, by acting on crucial post seed-dispersal processes. Yet, studies examining the extent to which rodents may act as secondary seed dispersers and/or predators in Madagascar's forests are limited. Thread-marking seed experiments were run to address this, using the seeds of two native large-seeded, frugivore-dispersed tree species (Abrahamia thouvenotii and Cryptocarya crassifolia), in disturbed and less-disturbed habitats in the rain forests of Ranomafana National Park, during the dry season. Data show that post-dispersal handling of seeds by rodents (predation and removal) was significantly lower in disturbed than in less-disturbed habitats (1.31–3.78 times lower; n = 2200). Also, seeds were more likely to be predated or left on the forest ground after removal than being larder- or scatter-hoarded: 27–78% of the removed seeds were found on the ground, <12% found in burrows and there was no evidence of scatter-hoarding (n = 132). Based on pictures from camera traps, the native rodent species, Nesomys rufus, was potentially responsible for seed predation and/or removal in the less-disturbed habitat; but no indication of the rodent species active in the disturbed habitat was obtained. The lack of scatter-hoarding suggests a limited role of rodents in secondary seed dispersal in this system. These findings form a preliminary account of the potential roles of rodents in post seed-dispersal processes in Madagascar's forests, but this warrants further study.


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