Forest structure and stream salamander diets: Implications for terrestrial-aquatic connectivity

Forest structure and stream salamander diets: Implications for terrestrial-aquatic connectivity
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森林结构和溪流蝾螈的饮食:对陆地-水生连通性的影响

DOI:
10.1080/03680770.2005.11902014
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发表时间:
2005
期刊:
Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen
影响因子:
--
通讯作者:
G. Likens
G. Likens
中科院分区:
--
文献类型:
--
作者:
W. Lowe;K. Nislow;G. Likens

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生态境界的概念我S也应运而生了!调查和了解异质景观中的生态过程(CADENASSO等人。2003年)。生态系统生态学家对生态边界的行为提供了有价值的观点,阐明了边界渗透性的调节及其对不同生境类型的相邻斑块内的能量和养分循环的影响(Bormann&Likens 1979,Hedin等人)。1998年)。这些边界介导的通量和生态边界对生物分布和扩散的直接影响(例如,Haddad 1999)可以强烈地影响自然系统的紧急性质,包括资源动态(Jefferies 2000)、次级生产力(Pous&Hurd 1996)以及食物网的组成和稳定性(HuxEl&McCann 1998)。水生和陆地生境之间的生态边界对源头河流系统施加了基本控制,在那里,生态系统过程和陆地和河流生境的食物网被广泛认为是耦合的(Ross 1963,Wallace等人)。1997年)。陆地植被的结构和组成通过影响光、温度和水文状况来影响溶解物质向溪流的转移(例如,Likens&Bormann 1995),并调节这些物质的溪流过程(Hill等人)。2001年,VALETI等人。2002年)。栖息于水源系统的物种依赖于从陆地到溪流生境的资源流动(Wallace等人。1997年,Nakano等人提出。(1999b),流向陆地生境的河流(HELFIELD&Naiman,L,Sabo&Power,2002年),以及这两种生境之间的互惠流动(Nakano&Murakami,2001年)。关于水源食物网的陆水连通性如何响应陆地植被条件的自然变化的研究有限,已经进行的研究主要集中在溪流鱼(Wipfli 1997,Allan等人。2003年)。更广泛地了解这一领域将创造宝贵的机会,将生态系统与河流系统的社区研究联系起来,并更充分地阐明成熟的森林演替模式的影响(例如,YooA等人)。1963年,Schwarz et al.L)。这种对河岸森林植被如何影响陆地-水生联系的了解,对于旨在保护自然生态系统过程的森林管理也可能是重要的。
The concept o f the ecological boundary i s emerging as a useful too! for investigating and understanding ecological processes in heterogeneous landscapes (CADENASSO et al. 2003). Ecosystem ecologists have provided valuable perspectives on the behavior of ecological boundaries, elucidating the regulation of boundary permeability and its implications for energy and nutrient cycles within contiguous patches of different habitat types (BORMANN & LIKENS 1979, HEDIN et al. 1998). These boundary-mediated fluxes and direct effects of ecological boundaries on the distribution and dispersal o f organisms ( e.g., HADDAD 1999) can strongly influence emergent properties of natural systems, including resource dynamics (JEFFERIES 2000), secondary productivity (Pous & HURD 1996), and food web composition and stability (HuxEL & McCANN 1998). The ecological boundary between aquatic and terrestrial habitats exerts fundamental control on headwater stream systems, where both ecosystem processes and food webs of terrestrial and stream habitats are widely viewed as coupled (Ross 1963, WALLACE et al. 1997). The structure and composition o f terrestrial vegetation influence the transfer o f dissolved substances to the stream (e.g., LIKENS & BoRMANN 1995) and regulate in-stream processing of these substances by affecting light, temperature, and hydrologic regimes (HILL et al. 2001, VALETI et al. 2002). Species inhabiting headwater systems rely on the flow o f resources from terrestria1 to stream habitats (WALLACE et al. 1997, NAKANO et al. l999b ), stream to terrestrial habitats (HELFIELD & NAIMAN 200 l, SABo & PowER 2002), and reciprocal flows between these two habitats (NAKANO & MURAKAMI 2001). Research is limited on how terrestrial-aquatic connectivity in headwater food webs responds to natural variation in terrestrial vegetation conditions, and the research that has been done focuses on stream fish (WIPFLI 1997, ALLAN et al. 2003). Broader understanding in this area will create valuable opportunities to bridge ecosystemand community-oriented research in stream systems, and to elucidate more fully the implications of well-established pattems of forest succession (e.g., YooA et al. 1963, ScHWARZ et al. 200 l). This understanding of how riparian forest vegetation affects terrestrial-aquatic links may also be important for forest management that aims to preserve natural ecosystem processes.
分级缺氧对无肺蝾螈(Desmognathus fuscus)代谢率和口腔活动的影响。
DOI: 10.1242/jeb.203.24.3785
发表时间: 2000
期刊: The Journal of experimental biology
影响因子: --
作者:
Sheafor,EA;Wood,SC;Tattersall,GJ
通讯作者: Tattersall,GJ