8 Works

Tree abundance in eight 1-ha tropical forest plots in northeastern Costa Rica from 1997-2017

Robin Chazdon
In 1997, four 1-ha plots were established in secondary forests (12-25 yr since establishment on former pasture) in northeastern Costa Rica, in and around La Selva Research Station. In 2005, four additional plots were established, two in 10-yr old sites and two in old growth sites. The dataset contains information for 155,378 trees. Each year, from 1997-2017 all stems with a diameter of breast height ≥ 5 cm were censused in each site within 100...

Drivers of soil microbial community assembly during recovery from selective logging and clear cutting

Jie Chen, Robin L. Chazdon, Nathan Swenson, Han Xu & Tushou Luo
Despite important progress in understanding the impacts of forest clearing and logging on aboveground communities, how these disturbances affect soil microbial β-diversity and the ecological processes driving microbial assemblages are poorly understood. Further, whether and how the microbial shifts affect vegetation composition and diversity during recovery of post-logged forests remain elusive. 2. Using a spatial grid experiment design in a primary tropical forest intermixed with post-logged patches naturally recovered for half century in Hainan Island,...

Data from: Crocodile social environments dictated by male philopatry

Cameron Baker, Céline Frère, Craig Franklin, Hamish Campbell, Terri Irwin & Ross Dwyer
Examining the social behaviors of solitary species can be challenging due to the rarity in which interactions occur and the large and often inaccessible areas which these animals inhabit. As shared space-use is a prerequisite for the expression of social behaviors, we can gain insights into the social environments of solitary species by examining the degree of spatial overlap between individuals. Over a 10-year period, we examined how spatial overlap amongst 105 estuarine crocodiles Crocodylus...

Floral attraction and flower visitors of a subcanopy tropical rainforest tree, F. picrosperma_Data

Elektra Grant, Helen Wallace, Peter Brooks, Chris Burwell, Paul Reddell & Steven Ogbourne
1. Flowering plants in tropical rainforests rely heavily on pollen vectors for successful reproduction. Research into pollination systems in tropical rainforests is dominated by canopy species, while subcanopy plant-pollinator interactions remain under-represented. The microclimate beneath the rainforest canopy is characterised by low light levels and is markedly different from the canopy environment that receives more light energy. 2. We studied the floral attractants and floral visitors of a dioecious, subcanopy tree, Fontainea picrosperma (Euphorbiaceae) in...

Testing the effectiveness of genetic monitoring using genetic non-invasive sampling

Anthony Schultz, Kasha Strickland, Romane Cristescu, Jon Hanger, Deidre De Villiers & Celine Frere
1. Effective conservation requires accurate data on population genetic diversity, inbreeding, and genetic structure. Increasingly, scientists are adopting genetic non-invasive sampling as a cost-effective population-wide genetic monitoring approach. Genetic non-invasive sampling has, however, known limitations which may impact the accuracy of downstream genetic analyses. 2. Here, using high quality SNP data from blood/tissue sampling of a free-ranging koala population (n = 430), we investigated how the reduced SNP panel size and call rate typical of...

Estimating the long-term repeatability of food-hoarding behaviours in an avian predator

Barbara Class, Giulia Masoero, Julien Terraube & Erkki Korpimaki
Food-hoarding behaviour is widespread in the animal kingdom and enables predictable access to food resources in unpredictable environments. Within-species, consistent variation among individuals in food-hoarding behaviours may indicate the existence of individual strategies, as it likely captures intrinsic differences in how individuals cope with risks (e.g. starvation, pilferage). Using 17 years of data, we estimated the long-term repeatability of 10 food-hoarding behaviours in a population of Eurasian pygmy owls (Glaucidium passerinum), a small avian predator...

Visual obstruction, but not moderate traffic noise, increases reliance on heterospecific alarm calls

Chaminda Ratnayake, You Zhou, Francesca Dawson Pell, Dominique Potvin, Andrew Radford & Robert Magrath
Animals rely on both personal and social information about danger to minimise risk, yet environmental conditions constrain information. Both visual obstructions and background noise can reduce detectability of predators, which may increase reliance on social information, such as from alarm calls. Furthermore, a combination of visual and auditory constraints might greatly increase reliance on social information, because the loss of information from one source cannot be compensated by the other. Testing these possibilities requires manipulating...

Repeatability and heritability of social reaction norms in a wild agamid lizard

Kasha Strickland, David Mitchell, Coralie Delmé & Celine Frère
In the evolutionary transition from solitary to group living, it should be adaptive for animals to respond to the environment and choose when to socialise to reduce conflict and maximise access to resources. Due to the associated proximate mechanisms (e.g. neural network, endocrine system), it is likely that this behaviour varies between individuals according to genetic and non-genetic factors. We used long-term behavioural and genetic data from a population of eastern water dragons (Intellagama lesueurii)...

Registration Year

  • 2021

Resource Types

  • Dataset


  • University of the Sunshine Coast
  • Hólar University College
  • University of Queensland
  • Australian National University
  • Australia Zoo
  • Griffith University
  • Queensland Museum
  • Chinese Academy of Forestry
  • Charles Darwin University
  • University of Maryland, Baltimore