Results 41 to 50 of about 63,698 (307)

Are there morpho‐acoustic patterns of adaptation in nonhuman primate ears? Testing the role of ecology and habitat in shaping ear morphology and function

open access: yesThe Anatomical Record, EarlyView.
Abstract Analysis of the variation in the bony structures of the inner and middle ear provides critical insights into functional morphology, as well as adaptive morphology across primates. In this study, we investigated whether ear morphology patterns are related to the ecological characteristics of species and their habitats to test two acoustic ...
Myriam Marsot   +4 more
wiley   +1 more source

Afforestation of tropical savannas has mixed consequences for bird communities

open access: yesConservation Science and Practice
Land‐use change is a key driver of tropical savanna biodiversity and one such widespread change is the conversion of ancient (i.e., old‐growth) savannas to tree plantations.
Siddhant Mhetre   +5 more
doaj   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

Climate, fire, and anthropogenic disturbance determine the current global distribution of tropical forest and savanna

open access: yesEnvironmental Research Letters
Tropical forest and savanna biomes are pivotal in the functioning of the Earth system. Both are biodiverse and under increasing threat due to land clearing and anthropogenic climate change, and play important roles in the global carbon cycle, through ...
Grant J Williamson   +2 more
doaj   +1 more source

Biomass, Morphology, and Dynamics of the Fine Root System Across a 3,000-M Elevation Gradient on Mt. Kilimanjaro

open access: yesFrontiers in Plant Science, 2020
Fine roots (≤2 mm) consume a large proportion of photosynthates and thus play a key role in the global carbon cycle, but our knowledge about fine root biomass, production, and turnover across environmental gradients is insufficient, especially in ...
Natalia Sierra Cornejo   +4 more
doaj   +1 more source

Pre-European fire regimes in Australian ecosystems [PDF]

open access: yes, 2008
We use multiple lines of evidence, including palaeo-environmental, ecological, historical, anthropological and archaeological, to investigate pre-European fire regimes in Australia, with particular focus on the extent to which the use of fire by ...
Enright, N.J., Thomas, I.
core   +2 more sources

Use of Restricted Nursing and a Bovine Appeasing Substance on the Welfare, Growth Performance, and Response to Vaccination of Beef Calves at Weaning

open access: yesAnimal Research and One Health, EarlyView.
The effects of restricted nursing (RN) and the administration of a bovine appeasing substance (BAS) on days −8 and 0 in relation to weaning were evaluated. Both strategies were effective in improving the growth performance of beef calves. Regarding welfare, BAS ‐especially on day 0‐ was more effective than RN.
Denise E. Mussalafo   +8 more
wiley   +1 more source

Mummy studies and parasite infections in Brazil

open access: yesJournal of Biological Research, 2005
Mummified bodies are unexpected finds in archaeological sites of tropical countries. Rain forests and humid climate provide poor environmental conditions to preserve organic remains. However, South American tropical environments also include dry savanna,
Adauto Araújo   +6 more
doaj   +1 more source

Carbon balance of a tropical savanna of northern Australia [PDF]

open access: yesOecologia, 2003
Through estimations of above- and below-ground standing biomass, annual biomass increment, fine root production and turnover, litterfall, canopy respiration and total soil CO(2) efflux, a carbon balance on seasonal and yearly time-scales is developed for a Eucalypt open-forest savanna in northern Australia.
Xiaoyong, Chen   +2 more
openaire   +2 more sources

Classifying avian drinking behaviour: ecological insights and implications in a changing world

open access: yesBiological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

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