Nocturnal activity by the primarily diurnal Central American agouti (Dasyprocta punctata) in relation to environmental conditions, resource abundance and predation risk

@article{Lambert2009NocturnalAB,
  title={Nocturnal activity by the primarily diurnal Central American agouti (Dasyprocta punctata) in relation to environmental conditions, resource abundance and predation risk},
  author={Thomas Lambert and Roland W. Kays and Patrick A. M. Jansen and Enzo Aliaga-Rossel and Martin Wikelski},
  journal={Journal of Tropical Ecology},
  year={2009},
  volume={25},
  pages={211 - 215}
}
An animal's fitness is in part based on its ability to manage the inherent risks (foraging costs, predation, exposure to disease) with the benefits (resource gain, access to mates, social interactions) of activity (Abrams 1991, Altizer et al. 2003, Lima & Bednekoff 1999, Rubenstein & Hohmann 1989, Wikelski et al. 2001). Thus, understanding an animal's pattern of activity is key to understanding behavioural and ecological processes. However, while numerous laboratory methodologies are available… 
Habitat use and activity patterns of Leopardus pardalis (Felidae) in the Northern Andes, Antioquia, Colombia
TLDR
The results suggest the absence of spatial exclusion between both species in the study area and a coexistence facilitated by marked temporal segregation.
Food acquisition and predator avoidance in a Neotropical rodent
Plasticity in the timing of activity in the Red-rumped Agouti, Dasyprocta leporina (Mammalia: Rodentia), in the Atlantic Forest of southeastern Brazil
TLDR
Examining temporal activity in the Red-rumped Agouti in two fragments of Atlantic Forest and those factors that influence the circadian rhythm in the study areas suggests plasticity in agouti behavior.
OBSERVATION OF MOVEMENT AND ACTIVITY VIA RADIO-TELEMETRY REVEALS DIURNAL BEHAVIOR OF THE NEOTROPICAL kATYDID philophyllia ingens (ORTHOPTERA: TETTIGONIIDAE)
TLDR
A daily concerted downward movement from the canopy is observed that may be a behaviour to avoid predation, while the earlier upward movement might be connected with temperature and food availability.
Activity pattern of Cuniculus paca (Rodentia: Cuniculidae) in relation to lunar illumination and other abiotic variables in the southern Brazilian Amazon
Understanding what influences the activity of organisms is important for both ecological understanding and species conservation. Using data from 2,707 camera trap days distributed across 24 forest
Habitat patch size modulates terrestrial mammal activity patterns in Amazonian forest fragments
TLDR
The hypothesis that behavioral plasticity is an important determinant of species persistence in small forest remnants dominated by edge effects is supported.
The relationship between external temperature and daily activity in a large rodent (Dasyprocta azarae) in the Brazilian Pantanal
TLDR
Daily activity patterns reflect interactions between circadian mechanisms and environmental stimuli and likely reflect a trade-off between activity time and thermoregulation during the diurnal period and demonstrate how the agouti can change its behaviour to achieve thermal comfort.
Nonvolant mammalian populations in primary and secondary Central American rainforests as revealed by transect surveys
Secondary forests are now prominent features in Neotropical landscapes, yet little is known about their conservation value for nonvolant mammalian communities. We performed a 20-month study using
Seasonal Habitat Use of Agoutis (Dasyprocta azarae) is Driven by the Palm Attalea phalerata in Brazilian Pantanal
TLDR
These findings show that this large-seeded palm can be an important resource for the agoutis' populations during the fruit-scarcity period, and may be particularly important for ag outis using fragmented forests, given that the large-SEeded palms are able to persist even in small fragments, which is untrue for other important resource.
Prey refuges as predator hotspots: ocelot (Leopardus pardalis) attraction to agouti (Dasyprocta punctata) dens
TLDR
The results suggest that predators can be attracted to prey refuges or refuging prey, and that the benefits to prey of staying nearby a refuge would thus be counterbalanced by higher likelihoods of predator encounter.
...
...

References

SHOWING 1-10 OF 29 REFERENCES
INFLUENCE OF ENVIRONMENT AND RESOURCE AVAILABILITY ON ACTIVITY PATTERNS OF CAROLLIA CASTANEA (PHYLLOSTOMIDAE) IN PANAMA
TLDR
It is concluded that ecological conditions (availability of food and predation risk) and physiological constraints (small body size associated with high metabolic rate) are the most important factors that account for the observed activity patterns.
Influence of a predator on the optimal foraging behaviour of sticklebacks (Gasterosteus aculeatus L.)
TLDR
Three-spined sticklebacks' foraging behaviour changes such that they attack swarm regions of lower density which provide a lower feeding rate but should increase their ability to detect an approaching predator, predicted by a model using Pontryagin's principle of maximisation.
Ocelot (Leopardus pardalis) Predation on Agouti (Dasyprocta punctata) 1
TLDR
PPredation by ocelots can be a significant cause of mortality for agoutis at Barro Colorado Island (BCI), and depredaci on por ocelotes puede ser una causa signi ficativa of mortalidad of los ag outis in BCI.
Home-range use by the Central American agouti (Dasyprocta punctata) on Barro Colorado Island, Panama
Abstract This study investigates the movements and home range of the agouti (Dasyprocta punctata) on Barro Colorado Island, Panama. We captured and tracked 12 agoutis from January to December 2003.
COMPETITIVE RELEASE IN DIETS OF OCELOT (LEOPARDUS PARDALIS) AND PUMA (PUMA CONCOLOR) AFTER JAGUAR (PANTHERA ONCA) DECLINE
TLDR
Both populations of ocelots in the study ate larger prey than elsewhere in their range, suggesting that their fundamental niche includes more medium-sized prey than their realized niche in other sites.
Impacts of Resource Abundance on Populations of a Tropical Forest Rodent
TLDR
Test populations of Proechimys semispinosus (Central American spiny rat) were provisioned with fresh native fruits for 6 mo to test the hypothesis that populations of frugivorous rodents in seasonal Neotropical forests are not limited by food during the season of greatest resource abundance, and increased densities were due to increased production and recruitment of young.
Life History and the Relationship Between Food Availability and Foraging Effort
TLDR
Modelling the effect of changed food density on optimal foraging effort when a forager faces a trade—off between energy (nutrient) gain and risk of mortality shows that the optimal effort or amount of risk may increase or decrease with increasing food density.
Temporal Variation in Danger Drives Antipredator Behavior: The Predation Risk Allocation Hypothesis
TLDR
This analysis suggests that an animal should exhibit its greatest antipredator behavior in high‐risk situations that are brief and infrequent, and suggests that a common experimental protocol is likely to overestimate the intensity of antipredators behavior expected under field situations or chronic exposure to high risk.
ANNUAL AND SPATIAL VARIATION IN SEEDFALL AND SEEDLING RECRUITMENT IN A NEOTROPICAL FOREST
TLDR
Eight species realized postdispersal econ- omies of scale despite the reduction in long-term recruitment expected from the synergism between variable annual seed production and negatively density-dependent seed fate, as quantified and evaluated spatial and annual variation in seedfall and seedling recruitment.
THE EL NINO SOUTHERN OSCILLATION, VARIABLE FRUIT PRODUCTION, AND FAMINE IN A TROPICAL FOREST
TLDR
It is tested that the El Nino Southern Oscillation influences forest-wide fruit production, which, in turn, limits frugivorous and granivorous mammals on Barro Colorado Island (BCI), Panama, and a 2-yr cycle of high, then low community-level fruit production has been observed twice for BCI when a mild dry season followed anEl Nino event.
...
...