scholarly journals Daily Activity Patterns and Co-Occurrence of Duikers Revealed by an Intensive Camera Trap Survey across Central African Rainforests

Animals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2200
Author(s):  
Fructueux G. A. Houngbégnon ◽  
Daniel Cornelis ◽  
Cédric Vermeulen ◽  
Bonaventure Sonké ◽  
Stephan Ntie ◽  
...  
Keyword(s):  
Daily Activity ◽  
Activity Patterns ◽  
Camera Trap ◽  
Camera Traps ◽  
The Other ◽  
Species Pairs ◽  
Free Ranging ◽  
First Time ◽  
Daily Activity Patterns ◽  
Temporal Overlap

The duiker community in Central African rainforests includes a diversity of species that can coexist in the same area. The study of their activity patterns is needed to better understand habitat use or association between the species. Using camera traps, we studied the temporal activity patterns, and quantified for the first time the temporal overlap and spatial co-occurrence between species. Our results show that: (i) Two species are strongly diurnal: Cephalophus leucogaster, and Philantomba congica, (ii) two species are mostly diurnal: C.callipygus and C. nigrifrons, (iii) one species is strongly nocturnal: C.castaneus, (iv) and one species is mostly nocturnal: C.silvicultor. Analyses of temporal activities (for five species) identified four species pairs that highly overlapped (Δ^≥ 0.80), and six pairs that weakly overlapped (Δ^ between 0.06 and 0.35). Finally, co-occurrence tests reveal a truly random co-occurrence (plt > 0.05 and pgt > 0.05) for six species pairs, and a positive co-occurrence (pgt < 0.05) for four pairs. Positive co-occurrences are particularly noted for pairs formed by C.callipygus with the other species (except C. nigrifrons). These results are essential for a better understanding of the coexistence of duikers and the ecology of poorly known species (C. leucogaster and C. nigrifrons), and provide clarification on the activity patterns of C. silvicultor which was subject to controversy. Camera traps proved then to be a powerful tool for studying the activity patterns of free-ranging duiker populations.

scholarly journals Quantifying daily activity patterns of the spotted-tailed quoll (Dasyurus maculatus) using camera trap data from a stronghold population in south-eastern New South Wales

2019 ◽  
Vol 41 (2) ◽  
pp. 283 ◽  
Author(s):  
Stephanie K. Courtney Jones ◽  
Katarina M. Mikac
Keyword(s):  
Daily Activity ◽  
New South ◽  
Activity Patterns ◽  
New South Wales ◽  
Camera Trap ◽  
Camera Traps ◽  
Activity Levels ◽  
South Eastern ◽  
South Wales ◽  
Daily Activity Patterns

Activity levels of spotted-tailed quolls were investigated using camera traps over 12 months. There were 33 independent camera trap photos with 17 individual quolls identified. Latency to initial detection was 40 days. Quolls were nocturnal/crepuscular, spending 35% of the day they were detected active. Highest activity levels were recorded in summer.

scholarly journals Observations of occurrence and daily activity patterns of ungulates in the Endau Rompin Landscape, peninsular Malaysia

2018 ◽  
Vol 10 (2) ◽  
pp. 11245 ◽  
Author(s):  
Win Sim Tan ◽  
Norazmi Bin Amir Hamzah ◽  
Salman Saaban ◽  
Nurul Aida Zawakhir ◽  
Yugees Rao ◽  
...  
Keyword(s):  
Wild Boar ◽  
Daily Activity ◽  
Small Sample Size ◽  
Activity Patterns ◽  
Camera Trap ◽  
Peninsular Malaysia ◽  
Small Sample ◽  
Panthera Tigris ◽  
Sambar Deer ◽  
Daily Activity Patterns

Camera trap data was used to study occurrence and daily activity patterns in the Endau Rompin Landscape of peninsular Malaysia during 2011, 2013 and 2015 to estimate Malayan Tiger Panthera tigris jacksoni population densities.  By-catch data were also collected for seven ungulate species: Barking Deer Muntiacus muntjak, Bearded Pig Sus barbatus, Wild Boar Sus scrofa, Greater Mousedeer Tragulus napu, Lesser Mousedeer Tragulus kanchil, Malayan Tapir Tapirus indicus and Sambar Deer Rusa unicolor.  Of these, Bayesian single-season occupancy analysis suggested that Barking Deer were the most widespread and Mousedeer spp. the least widespread during the study period.  Bearded Pig, Malayan Tapir and Wild Boar were recorded in more than half of the camera trap area (Sambar Deer was excluded due to small sample size).  Daily activity patterns based on independent captures in 2015 suggest that Barking Deer, Bearded Pig and Wild Boar are mostly diurnal, mousedeer species are crepuscular and Malayan Tapir strongly nocturnal.  

Biology of Tetrix bolivari (Orthoptera: Tetrigidae)

2011 ◽  
Vol 6 (4) ◽  
pp. 531-544 ◽  
Author(s):  
Petr Kočárek ◽  
Jaroslav Holuša ◽  
Šárka Grucmanová ◽  
David Musiolek
Keyword(s):  
Daily Activity ◽  
Activity Patterns ◽  
Vibratory Communication ◽  
Ecological Requirements ◽  
Bryum Argenteum ◽  
Structural Types ◽  
Vibrational Signals ◽  
Main Components ◽  
First Time ◽  
Daily Activity Patterns

AbstractThe ecological requirements and biology of the Tetrigidae are almost unknown. The aim of the present work is to contribute to the knowledge of Tetrix bolivari, one of the least studied species of European Tetrigidae, by investigating its seasonal and daily activity, food biology, and vibratory communication. Adults of T. bolivari were found from March to September, with the greatest number of detections occurring between May and August. Based on the study of the daily activity patterns, most activities were positively correlated with temperature and negatively correlated with relative humidity. Detritus and mosses were the main components of the diet, with the most frequently consumed mosses being Bryum caespiticium and Bryum argenteum. Substrate-borne vibrational signals used in communication of T. bolivari are described here in detail for the first time. We distinguished four structural types of vibrational signals produced by males, including the signal produced by wing tremulation.

Seasonal and daily activity patterns of mammals in the colony of great cormorants

Mammalia ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Marius Jasiulionis ◽  
Linas Balčiauskas
Keyword(s):  
Daily Activity ◽  
Red Fox ◽  
Activity Patterns ◽  
Camera Traps ◽  
Raccoon Dog ◽  
Phalacrocorax Carbo ◽  
Red Foxes ◽  
Breeding Time ◽  
Great Cormorants ◽  
Daily Activity Patterns

Abstract Despite extreme changes of ecosystems made by breeding colonies of great cormorants (Phalacrocorax carbo), these territories are still used by mammals. We present results of the analysis of mammal seasonal and daily activity patterns, registered by camera traps in two colonies of the great cormorants in Lithuania. Red foxes and raccoon dogs mainly visited colonies in the cormorant breeding time, April to July. In the inland colony of great cormorants in Lukštas Lake, average red fox relative shooting frequency in cormorant breeding time considerably exceeded that in non-breeding time (on average, 41.8 and 5.9 photos/100 days respectively). In the peninsular colony of great cormorants in Juodkrantė average relative shooting frequency of red fox in the breeding time was 7.8 versus 3.4 photos/100 days in non-breeding time, relative shooting frequencies of raccoon dog were 50.0 versus 1.3 photos/100 days, respectively. Daily activity patterns of wild boar and red fox in both colonies, as well as activity patterns of raccoon dog in Lukštas were related to the activity of cormorants with various degree of significance.

scholarly journals Freezing heat: thermally imposed constraints on the daily activity patterns of a free-ranging grassland bird

Ecosphere ◽  
2015 ◽  
Vol 6 (7) ◽  
pp. art119 ◽  
Author(s):  
João Paulo Silva ◽  
Inês Catry ◽  
Jorge M. Palmeirim ◽  
Francisco Moreira
Keyword(s):  
Daily Activity ◽  
Activity Patterns ◽  
Grassland Bird ◽  
Free Ranging ◽  
Daily Activity Patterns

scholarly journals Daily activity patterns of medium and large neotropical mammals in an area of Atlantic rain forest at altitude

2018 ◽  
Vol 19 (3) ◽  
Author(s):  
Rosane Vera Marques ◽  
Marta Elena Fabián
Keyword(s):  
Rain Forest ◽  
Daily Activity ◽  
Puma Concolor ◽  
Activity Patterns ◽  
Camera Traps ◽  
Atlantic Rain Forest ◽  
Leopardus Pardalis ◽  
Nocturnal Species ◽  
Intense Activity ◽  
Daily Activity Patterns

Camera traps were used to study the daily activity patterns of medium and large mammals (> 1 kg) in an area of Mixed Rain Forest (High Altitude Atlantic Forest) in the South of Brazil. Species that exhibited diurnal tendencies were Dasyprocta azarae, Eira barbara, Nasua nasua and Puma yagouaroundi. The nocturnal species observed were Dasypus novemcinctus, Tamandua tetradactyla and Procyon cancrivorus.  Didelphis aurita, Leopardus pardalis and L. wiedii exhibited nocturnal tendencies. Cerdocyon thous tended to be more crepuscular than nocturnal. Puma concolor exhibited a tendency to nocturnal and crepuscular activity, but diurnal activity was also observed. Finally, the species Mazama gouazoubira and Leopardus tigrinus were defined as cathemeral. While many species exhibited a tendency for the majority of their activity to be concentrated at certain times, there was no time during which medium and large mammal activity entirely ceased, demonstrating a balanced daily distribution of activity in a Mixed Rain Forest. There were differences in activity patterns between different seasons, especially between summer and winter, with nocturnal species exhibiting a tendency to more intense activity during the first half of the night during the winter and diurnal species tending to be more active at the end of the day during the same season.

Seasonal Variation in Daily Activity Patterns of Free-Ranging European Ground Squirrels (Spermophilus citellus)

2004 ◽  
Vol 21 (1) ◽  
pp. 57-71 ◽  
Author(s):  
Lammina G. Everts ◽  
Arjen M. Strijkstra ◽  
Roelof A. Hut ◽  
Ilse E. Hoffmann ◽  
Eva Millesi
Keyword(s):  
Seasonal Variation ◽  
Daily Activity ◽  
Activity Patterns ◽  
Ground Squirrels ◽  
Spermophilus Citellus ◽  
Free Ranging ◽  
Daily Activity Patterns
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