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You searched for: Journal Acta oecologica Remove constraint Journal: Acta oecologica Publication Year 2019 Remove constraint Publication Year: 2019 Source 2019 v.97 Remove constraint Source: 2019 v.97
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1. Determinants of spatial patterns of plant diversity depend on the biogeographical affinities of the taxa − a case study in Northwest Yunnan, Southwest China

Author:
Feng, Jianmeng
Source:
Acta oecologica 2019 v.97 pp. 57-64
ISSN:
1146-609X
Subject:
case studies; climatic factors; flora; geographical distribution; latitude; linear models; species diversity; tropical plants; variance; China
Abstract:
... The influence of the biogeographical affinities of taxa on the spatial determinants of plant diversity remains largely unknown. I explored the spatial patterns of tropical and temperate plant diversity in Northwest Yunnan and their primary determinants. Generalized linear models (GLMs) and variance partitioning were used to investigate the influences of predictors. Temperate genus diversity signif ...
DOI:
10.1016/j.actao.2019.04.009

2. Drivers of macroinvertebrate metacommunity structure in Tierra del Fuego rivers

Author:
Villatarco Vazquez, Amanda Paola; Fernández, Daniel Alfredo; Albariño, Ricardo Javier
Source:
Acta oecologica 2019 v.97 pp. 6-13
ISSN:
1146-609X
Subject:
aquatic invertebrates; ecoregions; macroinvertebrates; nestedness; rivers; species dispersal; species diversity; watersheds
Abstract:
... Among the different mechanisms that shape metacommunity structure, species sorting and mass effects are the most studied and reported mechanisms. Species sorting is related to environmental filtering, while mass effects are related to high dispersal between communities, which ultimately overrides environmental controls. In this paper, we aimed at studying metacommunity patterns of stream macroinve ...
DOI:
10.1016/j.actao.2019.04.001

3. Environmental adaptation and ecological distribution of streamside annual plants in northern Japan

Author:
Suzuki, Mayuko; Nakamura, Takashi; Shindo, Takeshi; Kimura, Masahito T.
Source:
Acta oecologica 2019 v.97 pp. 23-27
ISSN:
1146-609X
Subject:
Impatiens; Persicaria thunbergii; annuals; herbivores; progeny; rain; reproduction; risk reduction; shade; streams; submergence; water currents; Japan
Abstract:
... Environmental adaptation and distribution of three annual plants, Impatiens noli-tangere, I. textori and Persicaria thunbergii, occurring in streamside environments were studied in Sapporo, northern Japan. Impatiens noli-tangere was found along steep streams as well as gentle streams, whereas I. textori and P. thunbergii were less frequent along steep streams than along gentle streams. Impatiens n ...
DOI:
10.1016/j.actao.2019.04.005

4. Is the degree of spatial aggregation of Calluna vulgaris regulated by nitrogen deposition or precipitation?

Author:
Damgaard, Christian
Source:
Acta oecologica 2019 v.97 pp. 1-5
ISSN:
1146-609X
Subject:
Calluna vulgaris; heathlands; nitrogen; plant communities
Abstract:
... Most plant species display a certain degree of spatial aggregation that may play an essential role in plant community dynamics, e.g. in regulating the importance of interspecific competitive interactions. Here, the hypothesis that the degree of spatial aggregation may be regulated by environmental drivers such as nitrogen deposition or precipitation is tested. The degree of spatial aggregation of ...
DOI:
10.1016/j.actao.2019.04.002

5. Linking local people's perception of wildlife and conservation to livelihood and poaching alleviation: A case study of the Dja biosphere reserve, Cameroon

Author:
Epanda, Manfred Aimé; Mukam Fotsing, André Junior; Bacha, Thomas; Frynta, Daniel; Lens, Luc; Tchouamo, Isaac Roger; Jef, Dupain
Source:
Acta oecologica 2019 v.97 pp. 42-48
ISSN:
1146-609X
Subject:
agroforestry; biodiversity conservation; bushmeat; case studies; conservation areas; conservation programs; education; forest products; households; income; livelihood; people; perceptions (cognitive); questionnaires; villages; wildlife; Cameroon
Abstract:
... This Paper examines how people's livelihoods and perceptions of wildlife are related to self-reported poaching (here defined as commercial bushmeat hunting) in 25 villages at the northern buffer zone of the Dja Biosphere Reserve, East Cameroon. Using a six-point Likert scale questionnaire among 263 households interviewed form March to June 2017, the following hypothesis were tested: (1) Households ...
DOI:
10.1016/j.actao.2019.04.006

6. Microclimatic effects on the incubation success, hatchling morphology and locomotor performance of marine turtles

Author:
Staines, Melissa N.; Booth, David T.; Limpus, Colin J.
Source:
Acta oecologica 2019 v.97 pp. 49-56
ISSN:
1146-609X
Subject:
Caretta caretta; air temperature; beaches; dunes; eggs; embryonic mortality; experimental design; hatching; microclimate; nests; rain; sand; sea turtles; sex ratio; shade; vegetation cover; vigor; Queensland
Abstract:
... Global atmospheric temperatures are predicted to rapidly increase within the next hundred years, consequently altering the microclimates of the sand dune environment where marine turtles lay their eggs. High nest temperatures can increase embryonic mortality, decrease hatchling vigour and size (i.e. quality), and also feminises the sex-ratio of clutches. Sand composition, vegetation cover, rainfal ...
DOI:
10.1016/j.actao.2019.04.008

7. Prey abundance drives habitat occupancy by jaguars in Amazonian floodplain river islands

Author:
Rabelo, Rafael M.; Aragón, Susan; Bicca-Marques, Júlio César
Source:
Acta oecologica 2019 v.97 pp. 28-33
ISSN:
1146-609X
Subject:
Alouatta; Bayesian theory; Bradypus variegatus; Panthera onca; diet; floodplains; forests; habitat preferences; habitats; islands; models; prey species; probability; rivers; sloths; surveys
Abstract:
... The jaguar (Panthera onca) is widely distributed across a broad range of habitat types, where its feeding habits and habitat use patterns vary significantly. The jaguar and its main arboreal prey – the brown-throated sloth (Bradypus variegatus) and the red howler monkey (Alouatta juara) – are widespread in the Amazonian floodplain forests of the Mamirauá Reserve. These forest-dwelling species are ...
DOI:
10.1016/j.actao.2019.04.004

8. Quad bike impacts on vegetation and soil physicochemical properties in an arid ecosystem

Author:
Navas Romero, Ana L.; Herrera Moratta, Mario A.; Dalmasso, Antonio D.; Barros, Agustina
Source:
Acta oecologica 2019 v.97 pp. 14-22
ISSN:
1146-609X
Subject:
Salsola tragus; all-terrain vehicles; ecosystems; electrical conductivity; grasses; indigenous species; invasive species; landscapes; man-made trails; perennials; phytosociology; porosity; shrubs; soil compaction; soil pH; soil physical properties; soil sampling; texture; traffic; vegetation cover
Abstract:
... The increase use of Off-Road Vehicles (ORVs) coupled with the absence of control strategies have led to extensive use of natural areas for the creation of recreational trails. We assessed the effects of quad bikes on vegetation and soils in an arid ecosystem subjected to intensive quad bike use. We selected randomly eight traffic sites (disturbed sites) and eight adjacent control sites (undisturbe ...
DOI:
10.1016/j.actao.2019.04.007

9. Snake diversity in floodplains of central South America: Is flood pulse the principal driver?

Author:
Piatti, Liliana; Rosauer, Dan F.; de C. Nogueira, Cristiano; Strussmann, Christine; Ferreira, Vanda Lúcia; Martins, Marcio
Source:
Acta oecologica 2019 v.97 pp. 34-41
ISSN:
1146-609X
Subject:
community structure; ecosystems; floodplains; floods; forests; geographical distribution; habitat preferences; life history; models; phylogeny; snakes; species diversity; watersheds; wetlands; Pantanal; Paraguay River; South America
Abstract:
... Seasonal flood pulses drive important seasonal ecosystem changes, trigger ecological processes that control spatial and temporal distribution of organisms and their life-history strategies, and are considered a key ecological process shaping diversity in floodplains. We used generalized dissimilarity modelling (GDM) to analyse the relative importance of flooding as a driver of snake community comp ...
DOI:
10.1016/j.actao.2019.04.003