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1. Arboreal Ant Abundance and Leaf Miner Damage in Coffee Agroecosystems in Mexico

Author:
De la Mora, Aldo; Livingston, George; Philpott, Stacy M.
Source:
Biotropica 2008 v.40 no.6 pp. 742-746
ISSN:
0006-3606
Subject:
Azteca; agrochemicals; agroecosystems; canopy; ecosystem services; environmental factors; herbivores; leaves; nests; parasitic wasps; plantations; predators; pruning; shade trees; vegetation; Mexico
Abstract:
... Shaded coffee agroecosystems traditionally have few pest problems potentially due to higher abundance and diversity of predators of herbivores. However, with coffee intensification (e.g., shade tree removal or pruning), some pest problems increase. For example, coffee leaf miner outbreaks have been linked to more intensive management and increased use of agrochemicals. Parasitic wasps control the ...
DOI:
10.1111/j.1744-7429.2008.00444.x

2. Baseline assessment for environmental services payments from satellite imagery: A case study from Costa Rica and Mexico

Author:
Kalacska, M.; Sanchez-Azofeifa, G.A.; Rivard, B.; Calvo-Alvarado, J.C.; Quesada, M.
Source:
Journal of environmental management 2008 v.88 no.2 pp. 348-359
ISSN:
0301-4797
Subject:
ecosystems; public services and goods; satellites; remote sensing; tropical forests; vegetation cover; canopy; accuracy; cartography; deciduous forests; deforestation; forest policy; environmental policy; ecosystem services; Costa Rica; Mexico
DOI:
10.1016/j.jenvman.2007.03.015

3. Dung beetle (Coleoptera: Scarabaeidae: Scarabaeinae) diversity in continuous forest, forest fragments and cattle pastures in a landscape of Chiapas, Mexico: the effects of anthropogenic changes

Author:
Navarrete, Darío; Halffter, Gonzalo
Source:
Biodiversity and conservation 2008 v.17 no.12 pp. 2869-2898
ISSN:
0960-3115
Subject:
Scarabaeidae; anthropogenic activities; canopy; cattle; conservation areas; dung beetles; forest habitats; forests; habitat fragmentation; landscapes; pastures; soil temperature; species diversity; Mexico
Abstract:
... We studied the diversity of dung beetles in three different habitats in the Lacandona Forest, Chiapas, Mexico. We found a total of 49 species. Of these, 44 were in well-preserved forests (SC) within the limits of the Montes Azules Biosphere Reserve, 42 in fragmented forests (SF), and 13 in cattle pastures (PZ). These two latter habitats were part of a fragmented landscape. Even though the species ...
DOI:
10.1007/s10531-008-9402-8

4. Germination and Establishment of Tillandsia eizii (Bromeliaceae) in the Canopy of an Oak Forest in Chiapas, Mexico

Author:
Tarin Toledo‐Aceves; Jan H. D. Wolf
Source:
Biotropica 2008 v.40 no.2 pp. 246-250
ISSN:
0006-3606
Subject:
Quercus; Tillandsia; branches; canopy; forests; germination; seedlings; seeds; trees; Mexico
Abstract:
... We assessed the effectiveness of repopulating the inner canopy and middle canopy of oak trees with seeds and seedlings of the epiphytic bromeliad Tillandsia eizii. Canopy germination was 4.7 percent, considerably lower than in vitro (92%). Of the tree‐germinated seedlings, only 1.5 percent survived 6 mo. In contrast, 9.3 percent of transplanted laboratory seedlings survived 15 mo. To repopulate tr ...
DOI:
10.1111/j.1744-7429.2007.00344.x

5. Nitrous oxide emissions from soils of the semi-arid highlands of Durango, Mexico: A laboratory study

Author:
Herrera-Arreola, G.; Vasquez-Murrieta, M.S.; Cruz-Mondragon, C.; Cleemput, O. van; Dendooven, L.
Source:
Arid land research and management 2008 v.22 no.3 pp. 179-194
ISSN:
1532-4982
Subject:
semiarid zones; gas emissions; nitrous oxide; highlands; nitrogen fixation; shrubs; vegetation; ammonium nitrogen; soil water content; water holding capacity; Prosopis juliflora; canopy; carbon dioxide; nitrites; nitrates; temporal variation; greenhouse gases; soil air; Mexico
DOI:
10.1080/15324980802182964

6. Performance of various grapefruit (Citrus paradisi Macf.) and pummelo (C. maxima Merr.) cultivars under the dry tropic conditions of Mexico

Author:
Becerra-Rodríguez, Salvador; Medina-Urrutia, Víctor Manuel; Robles-González, Marciano Manuel; Williams, Timothy
Source:
Euphytica 2008 v.164 no.1 pp. 27-36
ISSN:
0014-2336
Subject:
tree growth; weight; cultivars; canopy; diameter; crop quality; tropics; tree trunk; agronomic traits; crop yield; Citrus maxima; color; grapefruit juice; Citrus paradisi; grapefruits; pummelos; Mexico
Abstract:
... Grapefruit growers in the tropics require information about existing and new citrus cultivars with high productivity potential. The objective of this study was to determine the growth, yield, and fruit quality performance of seven pigmented and four white grapefruit cultivars under the dry tropic conditions of Colima, Mexico. The trees were budded on sour orange (Citrus aurantium L.) rootstock and ...
DOI:
10.1007/s10681-007-9627-8

7. Species-specific characteristics of trees can determine the litter macroinvertebrate community and decomposition process below their canopies

Author:
Negrete-Yankelevich, Simoneta; Fragoso, Carlos; Newton, Adrian C.; Russell, Graham; Heal, O. William
Source:
Plant and soil 2008 v.307 no.1-2 pp. 83-97
ISSN:
0032-079X
Subject:
Oreopanax xalapensis; Quercus; calcium; canopy; community structure; forest stands; leaves; lignin; macroinvertebrates; magnesium; nitrogen; phosphorus; physical properties; plant litter; soil ecology; trees; tropical montane cloud forests; Mexico
Abstract:
... This paper tests whether individual trees in a mature forest stand influence the process of litter decomposition and the macroinvertebrate communities in the soil underneath their canopies, as a result of species-specific characteristics. A field decomposition experiment was performed in a mature forest stand of tropical montane cloud forest in Mexico. The areas under the canopies of Quercus lauri ...
DOI:
10.1007/s11104-008-9585-5

8. Vegetation water content during SMEX04 from ground data and Landsat 5 Thematic Mapper imagery

Author:
Yilmaz, M.T.; Hunt, E.R. Jr.; Goins, L.D.; Ustin, S.L.; Vanderbilt, V.C.; Jackson, T.J.
Source:
Remote sensing of environment 2008 v.112 no.2 pp. 350-362
Subject:
vegetation types; image analysis; canopy; multispectral imagery; leaf area index; regression analysis; vegetation cover; spatial data; water content; Landsat; measurement; Arizona; Mexico
Abstract:
... Vegetation water content is an important parameter for retrieval of soil moisture from microwave data and for other remote sensing applications. Because liquid water absorbs in the shortwave infrared, the normalized difference infrared index (NDII), calculated from Landsat 5 Thematic Mapper band 4 (0.76-0.90 μm wavelength) and band 5 (1.55-1.65 μm wavelength), can be used to determine canopy equiv ...
Handle:
10113/10139
DOI:
10.1016/j.rse.2007.03.029

9. The effect of Cercidium praecox and Prosopis laevigata on vertical distribution of soil free-living nematode communities in the Tehuacán Desert, Mexico

Author:
Pen-Mouratov, Stanislav; Rodriguez-Zaragoza, Salvador; Steinberger, Yosef
Source:
Ecological research 2008 v.23 no.6 pp. 973-982
ISSN:
0912-3814
Subject:
Parkinsonia; Prosopis; canopy; deserts; dispersions; ecosystems; free-living nematodes; parasites; plant adaptation; shrubs; soil ecology; soil nematodes; soil organic matter; soil sampling; soil structure; soil water; valleys; vegetation cover; wet season; Mexico
Abstract:
... Vegetation cover is known to act as an abiotic mediator influencing the structure of soil fauna communities in arid and semi-arid ecosystems. The aim of the current research was to determine the spatial dispersion of the soil free-living nematode community under the canopy of Cercidium praecox and Prosopis laevigata during the rainy season. These shrubs are the dominant plant associations in the w ...
DOI:
10.1007/s11284-008-0464-6