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Updated: Jul 1, 2025

How to Create Conditioned Taste Aversion for Grazing Ground Covers in Woody Crops with Small Ruminants
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在类动物占主导地位的景观中,种子分散综合征假设

Jose M Fedriani1,2, Pedro J Garrote3, Tamara Burgos4

  • 1Centro de Investigaciones Sobre Desertificación CIDE, CSIC-UVEG-GV, Carretera de Moncada a Náquera, km 4.5, 46113, Moncada (Valencia), Spain. fedriani@ebd.csic.es.

Scientific reports
|March 5, 2024
PubMed
概括

种子分散综合征假设 (SDSH) 预测水果特征与分散者相匹配. 对于伊比利亚梨,哺乳动物消耗水果,但通常是捕食者,而不是分散者,强调需要考虑frugivore角色.

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相关概念视频

Distribution and Dispersion00:54

Distribution and Dispersion

To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...
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Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
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Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
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Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
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Gene Flow02:39

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Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
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Frequency-dependent Selection

When the fitness of a trait is influenced by how common it is (i.e., its frequency) relative to different traits within a population, this is referred to as frequency-dependent selection. Frequency-dependent selection may occur between species or within a single species. This type of selection can either be positive—with more common phenotypes having higher fitness—or negative, with rarer phenotypes conferring increased fitness.
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