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A meditation on life, death, and meaning 对生命、死亡和意义的沉思
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-10-08 DOI: 10.1080/15659801.2016.1233690
R. Holt
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引用次数: 0
Spatial scale in games of habitat selection, patch use, and sympatric speciation 生境选择、斑块利用和同域物种形成博弈的空间尺度
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-10-03 DOI: 10.1080/15659801.2016.1232683
D. Morris
Most organisms live in heterogeneous environments. Yet we know little about how variations in scales of heterogeneity influence decisions on patch use and habitat selection, and how they impact spatial distribution and evolution. In particular, we need to know whether the choice of habitats and patches emerges from a hierarchy of decisions, whether resource consumption correlates closely with space use, and whether different types of individuals are associated with patterns of spatial distribution. I address these knowledge gaps with field experiments that manipulated the risk and quality of foraging patches exploited by male meadow voles. I used clear versus wooden covers to create risky versus safe foraging sites and added supplemental food to create rich versus poor habitats. I assessed whether the resources harvested from each tray matched its frequency of use by groups of voles expressing different temperament scores. Habitat and patch use did not fit a simple hierarchy of decisions because animals m...
大多数生物生活在异质环境中。然而,我们对异质性尺度的变化如何影响斑块利用和栖息地选择的决策,以及它们如何影响空间分布和进化知之甚少。特别是,我们需要知道生境和斑块的选择是否来自于一个层次的决策,资源消耗是否与空间利用密切相关,不同类型的个体是否与空间分布模式相关。我通过实地实验来解决这些知识空白,这些实验操纵了雄性草甸田鼠利用的觅食斑块的风险和质量。我使用透明和木制的覆盖物来创造危险和安全的觅食地点,并添加补充食物来创造富裕和贫穷的栖息地。我评估了从每个托盘中收获的资源是否与表现不同气质分数的田鼠组的使用频率相匹配。栖息地和土地的使用不符合简单的等级决定,因为动物们……
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引用次数: 0
Green roofs: what can we learn from desert plants? 绿色屋顶:我们能从沙漠植物中学到什么?
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-09-12 DOI: 10.1080/15659801.2016.1140619
Inga Dirks, B. Raviv, Oren Shelef, A. Hill, A. Eppel, Moses Kwame Aidoo, Brian Hoefgen, T. Rapaport, Hila Gil, Endale Geta, Amnon Kochavi, I. Cohen, S. Rachmilevitch
Green roofs in the Mediterranean region are often exposed to high levels of radiation, extreme temperatures, and an inconsistent water supply. To withstand these harsh conditions in shallow soils and poorly aerated growth media, plants must be armored with adaptations. Strategies that have evolved in desert plants can play significant roles in the use of plants for green covers. In the following, we will specifically focus on (1) heat and radiation, (2) drought, and (3) salinity. Further, we will discuss (4) interactions between neighboring plants. Finally, we will (5) propose a design for diverse green roofs that includes horticultural and medicinal products and provides diverse habitats. Many desert plants have developed morphological and anatomical features to avoid photo-inhibition, which can be advantageous for growth on green roofs. Plants exhibiting C4 photosynthesis or crassulacean acid metabolism (CAM) photosynthesis have a protected hydraulic system that enables growth under dry conditions. Furt...
地中海地区的绿色屋顶经常暴露在高水平的辐射、极端的温度和不稳定的供水中。为了在浅土壤和不透气的生长介质中承受这些恶劣的条件,植物必须穿上适应的盔甲。在沙漠植物中进化的策略在利用植物作为绿色覆盖物方面可以发挥重要作用。在下面,我们将特别关注(1)热和辐射,(2)干旱和(3)盐度。此外,我们将讨论(4)相邻植物之间的相互作用。最后,我们将(5)提出一个多样化的绿色屋顶设计,包括园艺和药用产品,并提供多样化的栖息地。许多沙漠植物在形态和解剖上都具有一定的特征,以避免光抑制,从而有利于在绿色屋顶上生长。表现C4光合作用或天冬氨酸酸代谢(CAM)光合作用的植物有一个受保护的液压系统,使其能够在干燥条件下生长。Furt……
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引用次数: 15
Integration of photovoltaic panels and green roofs: review and predictions of effects on electricity production and plant communities 光伏板和绿色屋顶的整合:对电力生产和植物群落影响的回顾和预测
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-09-12 DOI: 10.1080/15659801.2015.1048617
Bracha Y. Schindler, L. Blank, S. Levy, G. Kadas, D. Pearlmutter, L. Blaustein
The integration of photovoltaic (PV) panels and green roofs has the potential to improve panel efficiency to produce electricity and enhance green roof species diversity and productivity. In this review, we provide an overview of research on the effects of green roofs on PV panel electricity production, and predict the expected effects of the PV panel on green roof plant communities. Previous studies suggest that PV panels are more efficient above a green roof than above several types of conventional roofs due to the cooling effect of green roofs on the temperature-sensitive PV cells. Some ecological studies on shade suggest that shade imposed by panels may enhance the biotic productivity of green roofs. Shade is often shown to be important for seedling survival, particularly in arid environments – so the effect of shade on plants may depend on climate and irrigation. Previous studies also suggest that shade variations over the roof area may enhance plant diversity, as such heterogeneity creates niches of...
光伏板与绿色屋顶的整合有可能提高电池板的发电效率,增强绿色屋顶的物种多样性和生产力。本文综述了绿色屋顶对光伏板发电影响的研究概况,并对光伏板对绿色屋顶植物群落的预期影响进行了预测。先前的研究表明,由于绿色屋顶对温度敏感的光伏电池的冷却作用,光伏电池板在绿色屋顶上的效率高于上述几种传统屋顶。一些关于遮荫的生态学研究表明,面板施加的遮荫可能会提高绿色屋顶的生物生产力。荫蔽通常被证明对幼苗的生存很重要,特别是在干旱环境中——因此荫蔽对植物的影响可能取决于气候和灌溉。先前的研究还表明,屋顶区域的遮荫变化可能会增强植物多样性,因为这种异质性创造了生态位…
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引用次数: 35
Green roofs may cast shadows 绿色的屋顶可能会投下阴影
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-09-12 DOI: 10.1080/15659801.2015.1118844
R. Holt
A “green roof” is a roof on a structure created by humans, which has a plant community (and various hangers-on) established on it. There are many potential benefits of green roofs, ranging from moderation of local microclimates to modulations of storm runoffs, and green roofs may serve the enhancement of biodiversity conservation, as well. Green roofs would seem to be quintessential examples of a “novel ecosystem”. Here, I first outline some dimensions of the novelty that warrant more research. Green roofs can provide many opportunities for creative ecological research in the assembly, dynamics and functioning of novel ecosystems. Then, I briefly discuss some potential biodiversity hazards that are created along with green roofs. Recognizing these potential “shadows” of a green roof by no means belies the strong and compelling rationale for promoting green roofs, in terms of sustainability and livability of human structures; instead the points I raise are simply issues which should be evaluated and quanti...
“绿色屋顶”是人类建造的屋顶,上面有一个植物群落(和各种各样的依附者)。绿色屋顶有许多潜在的好处,从调节当地小气候到调节暴雨径流,绿色屋顶也可能有助于加强生物多样性保护。绿色屋顶似乎是“新型生态系统”的典型例子。在这里,我首先概述了一些值得进一步研究的新颖性方面。绿色屋顶可以为新生态系统的组装、动态和功能方面的创造性生态研究提供许多机会。然后,我简要地讨论了与绿色屋顶一起产生的一些潜在的生物多样性危害。认识到这些潜在的绿色屋顶的“阴影”,绝不能掩盖在人类结构的可持续性和宜居性方面推广绿色屋顶的强大和令人信服的理由;相反,我提出的观点只是需要评估和量化的问题……
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引用次数: 7
Green roofs: new ecosystems to defend species diversity 绿色屋顶:保护物种多样性的新生态系统
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-09-12 DOI: 10.1080/15659801.2015.1121600
M. Rosenzweig
Many contributions to the symposium seek to expand the role of green roofs in the conservation of biodiversity. Indeed, if green roofs can be harnessed for biodiversity, they will add area to that now available to nature. That would have the mass effect of increasing the sustainable number of species in simple conformity with the species--area relationship. Because all green roofs are novel ecosystems, all represent instances of reconciliation ecology, i.e., re-engineering human uses to permit simultaneous beneficial use by people and nature. Green roofs can provide a large number of experiments that might teach us how to improve their design. But those experiments, like any in science, must be overtly designed so that their hypotheses are clear and explicit, their methods repeatable, and their data appropriate for rigorous analysis. I present an embryonic example using native plant species growing at ground level in the urban environments of Tucson, AZ, USA. Steps include: (1) formulating a hypothesis; (...
研讨会的许多投稿都寻求扩大绿色屋顶在保护生物多样性方面的作用。事实上,如果绿色屋顶可以用于生物多样性,它们将增加现有的自然可用面积。这将产生质量效应,增加物种的可持续数量,简单地符合物种-面积关系。因为所有的绿色屋顶都是新颖的生态系统,它们都代表了和谐生态的实例,即重新设计人类的使用,以允许人与自然同时有益地使用。绿色屋顶可以提供大量的实验,可以教会我们如何改进它们的设计。但这些实验,就像任何科学实验一样,必须公开设计,以便他们的假设清晰明确,他们的方法可重复,他们的数据适合严格的分析。我提出了一个在美国亚利桑那州图森市城市环境中生长的原生植物物种的胚胎例子。步骤包括:(1)提出假设;(...
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引用次数: 17
Preserving plant diversity on extensive green roofs – theory to practice 保护大面积绿色屋顶上的植物多样性——从理论到实践
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-09-12 DOI: 10.1080/15659801.2015.1035507
Amiel Vasl, Amy Heim
The growing phenomenon of green roofs throughout the world mostly results in the establishment of extensive green roofs with low species diversity. However, research from the last few decades has shown that several advantages can accrue from diverse ecological systems, such as increased faunal diversity, storm water retention, thermal stability, pollution mitigation, and visual appeal. The maintenance of diversity on extensive green roofs has not been closely examined and few studies incorporate methods to ensure long-term coexistence into green roof design. Theoretical work has placed much focus on the niche and neutral theories that attempt to explain diversity as a result of the existence of different habitats or of demographic and dispersal patterns, respectively. These theories have resulted in several theoretical and practical recommendations for the maintenance of diversity in ecological systems and could suggest additional practices that would support biodiverse green roofs. We hereby review and d...
在世界范围内,绿化屋顶的现象越来越多,其结果大多是建立了粗放式的绿化屋顶,但其物种多样性却很低。然而,过去几十年的研究表明,多样化的生态系统可以带来一些优势,如增加动物多样性、雨水保留、热稳定性、污染缓解和视觉吸引力。在广泛的绿色屋顶上维持多样性并没有得到密切的研究,很少有研究将确保长期共存的方法纳入绿色屋顶设计中。理论工作主要集中在生态位理论和中性理论上,它们分别试图将多样性解释为不同栖息地的存在或人口和分散模式的结果。这些理论产生了维护生态系统多样性的若干理论和实践建议,并可能提出支持生物多样性绿色屋顶的其他实践。我们特此审查并…
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引用次数: 14
Integrating ecology into green roof research 将生态学融入绿色屋顶研究
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-09-12 DOI: 10.1080/15659801.2016.1208943
L. Blaustein, G. Kadas, J. Gurevitch
Green roofs can provide environmental benefits that include increased building insulation, mitigating urban heat islands, providing aesthetic value, reducing runoff and storm water flooding in urban environments, improving air quality by sequestering pollutants, cooling photovoltaic panels to improve their function, and providing habitat for fauna and flora. Until very recently, improvements of green-roof environmental services had been achieved largely by horticulturalists, engineers, and architects. In recent years, ecologists have increased their participation, implementing ecological theory for enhancing biodiversity, and selecting specific plant assemblages for other environmental services such as carbon sequestration and for providing cooler roofs. Moreover, ecologists can use green roofs as relatively novel habitats for testing and developing ecological theory. This special issue is devoted to fostering input from ecologists for advancing the environmental and ecosystem services of green roofs. A w...
绿色屋顶可以提供环境效益,包括增加建筑隔热,减轻城市热岛,提供美学价值,减少城市环境中的径流和雨水泛滥,通过隔离污染物改善空气质量,冷却光伏板以提高其功能,并为动植物提供栖息地。直到最近,绿色屋顶环境服务的改善主要是由园艺师、工程师和建筑师完成的。近年来,生态学家越来越多地参与其中,运用生态学理论来增强生物多样性,并为其他环境服务选择特定的植物组合,如碳封存和提供凉爽的屋顶。此外,生态学家可以利用绿色屋顶作为测试和发展生态学理论的相对新颖的栖息地。本期特刊致力于促进生态学家的投入,以促进绿色屋顶的环境和生态系统服务。w……
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引用次数: 10
Ecosystem ecology as a framework for organizing and advancing greenroof research 生态系统生态学作为组织和推进绿色屋顶研究的框架
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-09-12 DOI: 10.1080/15659801.2015.1031470
O. Starry
This paper explores the application of an ecosystem ecology framework to greenroof systems. It investigates how aspects of greenroof design or structure relate to functions such as rates of nutrient and energy cycling. Three main sections include energy budgets, cycling of nutrients and water, and ecosystem response to disturbance. Comparisons between greenroofs and other systems indicated that, functionally, greenroofs may be very different from ecosystem analogs. A further assessment of the greenroof energy budget called into question how food webs are supported. An evaluation of factors predicting system response to disturbance identified ways in which greenroofs may be less resilient to disturbance. One challenge with the ecosystem approach is a lack of sufficient data for fully holistic models, especially with respect to management practices. Ecosystem ecology is nevertheless shown to be a valuable framework for integrating existing greenroof research as well as targeting areas for future research an...
本文探讨了生态系统生态学框架在屋顶绿化系统中的应用。它调查了绿化屋顶设计或结构的各个方面与营养物质和能量循环速率等功能的关系。三个主要部分包括能量收支、养分和水的循环以及生态系统对干扰的响应。绿色屋顶与其他系统之间的比较表明,在功能上,绿色屋顶可能与生态系统类似物有很大不同。对绿色屋顶能源预算的进一步评估对如何支持食物网提出了质疑。对预测系统对干扰的响应的因素进行了评估,确定了绿色屋顶对干扰的弹性可能较低的方式。生态系统方法的一个挑战是缺乏充分的数据来建立全面的模型,特别是在管理实践方面。然而,生态系统生态学被证明是一个有价值的框架,可以整合现有的绿色屋顶研究以及未来研究的目标领域。
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引用次数: 6
Risk of inbreeding: problem of mate choice and fitness effects? 近交风险:配偶选择问题与适合度效应?
IF 1.2 4区 环境科学与生态学 Q3 ECOLOGY Pub Date : 2016-08-04 DOI: 10.1080/15659801.2015.1073452
H. Ylönen, Marko Haapakoski
Mating with close kin may cause inbreeding depression with negative consequences to offspring and local populations. There exist mechanisms like kin-recognition or sex-specific dispersal to avoid mating with kin. In fluctuating population densities, like in many small mammals, both very low and very high densities provide conditions for inbreeding, if kin males are prone to stay in their natal area. Females are choosy and male dominance is thought to be the key feature when selecting mating partners. The aim of this study was to test the possible discrepancy in mate choice and negative fitness effects of inbreeding in two experiments, one in the laboratory and one in field enclosures. We asked (1) how the quality of the potential mating partners affects female choice regardless of relatedness and (2) how inbreeding affects the field populations created either from inbred or outbred individuals. Our results show that primiparous females in post-partum oestrus mated preferably with a dominant male, measured...
近亲交配可能导致近亲繁殖抑制,对后代和当地种群造成负面影响。存在亲属识别或性别特异性分散等机制来避免与亲属交配。在人口密度波动的情况下,如许多小型哺乳动物,如果近亲雄性倾向于留在其出生地区,那么非常低和非常高的密度都为近亲繁殖提供了条件。女性是挑剔的,而男性的主导地位被认为是选择配偶时的关键特征。本研究的目的是通过两个实验,一个是在实验室和一个是在野外圈养,来检验近亲繁殖在配偶选择和负适合度效应方面可能存在的差异。我们的问题是:(1)潜在交配对象的质量如何影响雌性的选择,而不考虑亲缘关系;(2)近交如何影响由近交或远交个体产生的野外种群。我们的研究结果表明,产后发情期的初产雌性更倾向于与一个优势雄性交配。
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引用次数: 3
期刊
Israel Journal of Ecology & Evolution
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