"Wallace effect" meaning in English

{
  "etymology_text": "Named after Alfred Russel Wallace.",
  "forms": [
    {
      "form": "Wallace effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Wallace effect (plural Wallace effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ecology",
          "orig": "en:Ecology",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A process of speciation where natural selection increases the reproductive isolation between two populations of species as a result of selection acting against the production of hybrid individuals of low fitness."
      ],
      "id": "en-Wallace_effect-en-noun-XfbMY3I3",
      "links": [
        [
          "ecology",
          "ecology"
        ],
        [
          "biology",
          "biology"
        ],
        [
          "speciation",
          "speciation"
        ],
        [
          "natural selection",
          "natural selection"
        ],
        [
          "reproductive",
          "reproductive"
        ],
        [
          "isolation",
          "isolation"
        ],
        [
          "populations",
          "populations"
        ],
        [
          "species",
          "species"
        ],
        [
          "hybrid",
          "hybrid"
        ],
        [
          "fitness",
          "fitness"
        ]
      ],
      "qualifier": "evolutionary biology",
      "raw_glosses": [
        "(ecology, evolutionary biology) A process of speciation where natural selection increases the reproductive isolation between two populations of species as a result of selection acting against the production of hybrid individuals of low fitness."
      ],
      "topics": [
        "biology",
        "ecology",
        "natural-sciences"
      ],
      "wikipedia": [
        "Alfred Russel Wallace"
      ]
    }
  ],
  "word": "Wallace effect"
}

{
  "etymology_text": "Named after Alfred Russel Wallace.",
  "forms": [
    {
      "form": "Wallace effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Wallace effect (plural Wallace effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Biology",
        "en:Ecology"
      ],
      "glosses": [
        "A process of speciation where natural selection increases the reproductive isolation between two populations of species as a result of selection acting against the production of hybrid individuals of low fitness."
      ],
      "links": [
        [
          "ecology",
          "ecology"
        ],
        [
          "biology",
          "biology"
        ],
        [
          "speciation",
          "speciation"
        ],
        [
          "natural selection",
          "natural selection"
        ],
        [
          "reproductive",
          "reproductive"
        ],
        [
          "isolation",
          "isolation"
        ],
        [
          "populations",
          "populations"
        ],
        [
          "species",
          "species"
        ],
        [
          "hybrid",
          "hybrid"
        ],
        [
          "fitness",
          "fitness"
        ]
      ],
      "qualifier": "evolutionary biology",
      "raw_glosses": [
        "(ecology, evolutionary biology) A process of speciation where natural selection increases the reproductive isolation between two populations of species as a result of selection acting against the production of hybrid individuals of low fitness."
      ],
      "topics": [
        "biology",
        "ecology",
        "natural-sciences"
      ],
      "wikipedia": [
        "Alfred Russel Wallace"
      ]
    }
  ],
  "word": "Wallace effect"
}