Results 91 to 100 of about 9,354 (278)

The evidence base for ranger patrol effectiveness in conservation and how to improve it

open access: yesBiological Reviews, EarlyView.
ABSTRACT Ranger patrols are a cornerstone of wildlife protection efforts around the world and occur across all ecological governance systems. Evidence that patrols reduce threats to wildlife and enable their recovery has not been systematically examined previously.
Trina Rytwinski   +19 more
wiley   +1 more source

Effects of mixing pine and broadleaved tree/shrub litter on decomposition and N dynamics in laboratory microcosms

open access: yes, 2009
This study was carried out to compare the ecological function of exotic pine (Pinus radiata-Pr) and native pine (Pinus tabulaeformis-Pt) in terms of litter decomposition and its related N dynamics and to evaluate if the presence of broad-leaved tree ...
Li, W, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China.   +6 more
core  

Humans are not unique: difficult birth is common in placental mammals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley   +1 more source

Effects of Litter Evenness, Nitrogen Enrichment and Temperature on Short-Term Litter Decomposition in Freshwater Marshes of Northeast China

open access: yes, 2017
Knowledge about the effects of global change factors on litter decomposition is critical for accurate prediction of future carbon (C) and nutrient cycles in terrestrial ecosystems.
X. H. Zhang, X. X. Sun and R. Mao   +1 more
core   +1 more source

Trade‐offs in avian parental care: a review of theory and meta‐analysis of brood size manipulations

open access: yesBiological Reviews, EarlyView.
ABSTRACT The selective forces shaping parental care have been studied for over 50 years. While theoretical and experimental work has yielded qualitative progress, the large body of empirical work testing predictions about parental investment based on life‐history trade‐offs has yet to be synthesized.
Rebekah A. McKinnon   +4 more
wiley   +1 more source

Leaf Litter Mixtures in Guam: Decomposition Synergism and Antagonism of Two Endangered Tree Species

open access: yesEcologies
Leaf litter traits among tree species exert a direct influence on spatiotemporal nutrient turnover and an indirect influence by shifting the decomposition dynamics of leaf litter mixtures including other sympatric species.
Thomas E. Marler
doaj   +1 more source

Mixing of Aleppo pine and Holm oak litter increases biochemical diversity and alleviates N limitations of microbial activity

open access: yes, 2017
International audienceSoil N availability is a primary limitation for plants and microbes in Mediterranean ecosystems. Few studies have examined the role of secondary compounds (e.g.
Velazco-Ayuso, Sergio   +3 more
core   +1 more source

On the importance of including both sexes in animal studies – insights from home‐cage monitoring

open access: yesBiological Reviews, EarlyView.
ABSTRACT A review of behavioural studies using home‐cage monitoring (HCM) systems revealed that over 61% of studies used only male subjects, with only 24% including both sexes, despite evidence of substantial behavioural differences between male and female animals. This bias could influence the outcomes of biomedical research.
Maša Čater   +12 more
wiley   +1 more source

Litter mixing significantly affects decomposition in the Hulun Buir meadow steppe of Inner Mongolia, China

open access: yes, 2014
Aims We explored the decomposition rates of single- and mixed-species litter, the litter-mixing effect and the effect of component litters in a mixture on decomposition.
Li S. G.   +4 more
core  

Litter composition rather than plant presence affects decomposition of tropical litter mixtures

open access: yes, 2011
International audienceLitter decomposition is strongly controlled by litter quality, but the composition of litter mixtures and potential interactions with live plants through root activity may also influence decomposers.
Butenschoen, Olaf   +11 more
core   +1 more source

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