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| Munhoz,Cibele Amato; Silva,José Vicente da; Marques,Márcia C. M.. |
| Ocotea porosa (Ness) Barroso (Lauraceae), a typical tree of the southern Atlantic Forest in Brazil, was heavily exploited for timber in the last century. With the aim of examining the status of the remaining populations, we surveyed five forest fragments in the state of Paraná, in southern Brazil, and evaluated whether disturbances caused by selective logging and fragmentation were related to population structure of O. porosa. We assessed demographic aspects related to tree density, size hierarchy and individual allometry, correlating those parameters with fragment structure variables (fragment size, isolation and logging level). We found that, although all populations occurred in low densities (60-440 individuals ha−¹), the number of adults was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Size structure; Size hierarchy; Araucária Forest; Mixed forest; Atlantic Forest. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000400016 |
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| Сергеева, Н. Г.; Заика, В. Е.; Гулин, М. Б.. |
| Мейобентосное сообщество с доминированием полихеты Vigtorniella zaikai исследовано в северо-западной части Чёрного моря и впервые – в районе Керченского пролива. Анализ размерного состава V. zaikai из донных поселений, собранных в разные годы, в период с февраля по июль, показывает постоянное преобладание ранних постларвальных стадий. Самый крупный экземпляр имел 14 сегментов тела, а модальную группу составили особи с 4 сегментами. V. zaikai имеет пик численности на глубине около 150 м, в зоне постоянной гипоксии и может служить индикатором гипоксии. Впервые перечислен состав всех звеньев сообщества мейобентоса из зоны постоянной гипоксии (V. zaikai, Protodrilus sp., Nematoda, Hydrozoa, случайные прочие Metazoa, а также Ciliophora, Foraminifera... |
| Tipo: Journal Contribution |
Palavras-chave: Чёрное море; Зона гипоксии; Мейобентосное сообщество; Vigtorniella; Размерная структура; Black Sea; Zone of hypoxia; Meiobenthic community; Vigtorniella; Size structure. |
| Ano: 2009 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/1195 |
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| Benedetti, Fabio; Jalabert, Laëtitia; Sourisseau, Marc; Becker, Beatriz; Cailliau, Caroline; Desnos, Corinne; Elineau, Amanda; Irisson, Jean-olivier; Lombard, Fabien; Picheral, Marc; Stemmann, Lars; Pouline, Patrick. |
| Marine Protected Areas have become a major tool for the conservation of marine biodiversity and resources. Yet our understanding of their efficacy is often limited because it is measured for a few biological components, typically top predators or species of commercial interest. To achieve conservation targets, marine protected areas can benefit from ecosystem-based approaches. Within such an approach, documenting the variation of plankton indicators and their covariation with climate is crucial as plankton represent the base of the food webs. With this perspective, we sought to document the variations in the emerging properties of the plankton to better understand the dynamics of the pelagic fishes, mammals and seabirds that inhabit the region. For the... |
| Tipo: Text |
Palavras-chave: Iroise Sea; Plankton; MPA; Temporal variability; Community composition; Size structure. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00490/60213/63561.pdf |
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| Zingone, Adriana; Sarno, Diana; Siano, Raffaele; Marino, Donato. |
| The distribution of summer phytoplankton across the Straits of Magellan (SOM) was studied with the aims of tracing differences among the distinct subregions of the area and contributing to the knowledge of its biodiversity. Samples collected at 25 stations were observed and counted in light microscopy. Selected samples were observed with transmission electron microscopy. The main unifying feature of the phytoplankton in the SOM was the high abundance and numerical dominance of small-sized (<10 μm) eukaryotic species, among which coccoid cells of <3 μm size were predominant (56.2 ± 30.6 of the total phytoplankton abundance). They mostly belonged to the prasinophyte Pycnococcus provasolii, which was abundant (0.8–6,834 cells × 103 ml−1) at all stations... |
| Tipo: Text |
Palavras-chave: Lennoxia faveolata; Periantarctic areas; Picoeukaryotes; Pycnococcus provasolii; Size structure. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00026/13722/10828.pdf |
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| Blazkova, Ivana; Sadilek, Tomas. |
| The objective of the paper is to find out the position and perspectives of small farms’ production sales with respect to the structure development of subsequent vertical stage. Structure development is evaluated in terms of company’s size, which is defined according to the number of the persons employed. The analysis is based on the assumption that small farms are able to sell their production rather to small than big processors and the question is whether the small processors give stability and certainty for small farms. The paper deals with chosen commodity chains in the Czech Republic. As an example of the variability in the food industry there were chosen two processing sectors that are important processors of diverse commodity sources of production... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Meat and beverages sectors; Size structure; Small food processors; Livestock Production/Industries. |
| Ano: 2009 |
URL: http://purl.umn.edu/52860 |
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