Dune Vegetation Along the Eastern Shore of the Gulf of California

Johnson, Ann F.

doi:10.2307/2844718

Cited by 24 publications

(14 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Salt stress, nutrients, water, and levels of disturbance have all been proposed to influence dune plant distribution (Miller et al 2010). In addition, other studies have proposed that locality and spatial variation may have more influence on key environmental factors (Brown and McLachlan 2002;Johnson 1982). In this study, plant distribution was mostly influenced by topological factors, including dune elevation and distance from the shoreline.…”

Section: Dune Environment and Zonation Factorsmentioning

confidence: 89%

Effects of Monsoon on Topography, Soil Variables, and Coastal Plants

Kim

et al. 2014

Estuaries and Coasts

View full text Add to dashboard Cite

Coastal dunes are highly vulnerable to disturbances. We characterized changes in the plant distribution, soil properties, and topology of a coastal dune field during the monsoon period. We selected a 600×300 m rectangular area of Dadaepo in the Nakdong River estuary and measured variables at 40 sampling points. A field survey was performed over two periods (pre-and post-monsoon) in 2009. Soil, topological features, and vegetation were surveyed at each point, and canonical correspondence analysis was used to identify relationships among the variables during the monsoon. The volumetric net change in the study site was 33,104 m 3 during the monsoon. When topographic and edaphic variables were compared, topological variables were found to be the dominant factors in dune vegetation zonation; however, their influence on vegetation change during the monsoon was less prominent than that of edaphic variables. Inland exotic species (Oenothera odorata and Conyza canadensis) and Cynodon dactylon replaced most of the Carex pumila distribution (54 % decrease) after the monsoon. Phragmites australis expanded its distribution and replaced the adjacent community after the monsoon. The area of Suaeda japonica decreased by more than 85 %, and this area was also replaced by P. australis. This knowledge of the dynamics of dune vegetation and environmental variables will be important for predicting the impacts of climate change, such as sea level rise and increased rainfall frequency.

show abstract

Section: Dune Environment and Zonation Factorsmentioning

confidence: 89%

Effects of Monsoon on Topography, Soil Variables, and Coastal Plants

Kim

et al. 2014

Estuaries and Coasts

View full text Add to dashboard Cite

show abstract

“…Los manglares de los estados que conforman el NO de México integran el 5 % de los existentes en la superficie nacional (CONABIO 2009), los del canal del Infiernillo en SON representan el límite norteño de su distribución geográfica en el continente (Isla Tiburón, estero El Sargento). Las dunas costeras se encuentran bien representadas en la costa Pacífica de la península, en menor grado en el Golfo de California, así como en SON (Johnson 1977(Johnson , 1982.…”

Section: Materiales Y Métodosunclassified

El conocimiento florístico actual del Noroeste de México: desarrollo, recuento y análisis del endemismo

Luz¹,

Rebman

Devender³

et al. 2018

Bot. Sci.

View full text Add to dashboard Cite

Background: Floristic knowledge of Northwestern (NW) Mexico was mainly carried out by American botanists until the first half of XX century.Question: Do the ancient and recent botanical explorations carried out in the study area, are already enough to document in a conclusive way both the floristic and structural composition?Methods: The authors are botanists and managers of the herbaria included in the floristic compilation (BCMEX, HCIB, SD, and USON), each herbarium has been devoted to document the flora of the states of NW Mexico in the last three decades. The floristic information was obtained mainly of the herbaria databases (around 110,000 entries), historic bibliographic information and recent collects from the same authors. The databases consulted are composed by 27,117 collect sites.Results: The final database obtained consists of 5,865 taxa at the species level and intraspecific categories. By state, Sonora is the most biodiverse with 3,762 taxa, Baja California has 2,583 and Baja California Sur has 2,070. The Mexican NW is relatively poor in total number of species, but the number of endemic taxa is high. Within this region there are 941 endemic species, where 294, 391, and 79 correspond to the states of Baja California, Baja California Sur, and Sonora, respectively; in addition, there are 177 endemic species shared among these three states. The NW region also has 18 endemic genera, included in 10 families.Conclusions: As result of this review, there is excellent floristic knowledge background for NW Mexico, but there are still geographic areas still inaccessible, which includes all kind of topography, that explored could increase the total flora and endemism rate. Presently, the climate change put into risk the species survival, and hence it is a priority that conservation programs be established especially in terms of endemic species, since many of them have a restricted geographical distribution.

show abstract

“…Distribución de la vegetación de dunas costeras Poggie (1962) abrió camino en la investigación ecológica de DC en México a través de estudios de las asociaciones vegetales y las características particulares de las plantas para establecerse en ambientes extremos. Posteriormente, Johnson (1977) registró la diversidad de plantas de dunas de la costa del Pacífico norte, desde Tijuana (BC) hasta La Paz (BCS) (Johnson, 1977) y del golfo de Santa Clara (Sonora) hasta San Blas (Nayarit) (Johnson, 1982). Ella determinó que los límites de las asociaciones de plantas están dados por los límites climáticos y características sedimentarias de cada región.…”

Section: Desarrollo Histórico De La Investigación En Dunas Costerasunclassified