Question

Can you explain me the meaning of the sentence-mosquito densities are significantly positively correlated with tree densities

Answer 1

It depends upon which tree you are talking about.

There are plants that draw mosquitoes into your yard. Both male and female mosquitoes are known to feed on nectar. If you have flowers in your yard, you're going to attract mosquitoes.

Mosquitoes are also drawn to water. If you have water lilies, water hyacinths, water lettuce, Taro, or papyrus in your yard, these plants will be attractive to mosquitoes. Those little biters will also be more attracted to a yard that gets a lot of watering. Mosquitoes breed in still, stagnant water. Any plant or tree that has leaves that can hold water is an attractant for these pests.

There are also some plants which keeps mosquitoes away,

citronella grass, lavender, basil, catmint, rosemary, garlic, bee balm, cadaga trees, cedars, clove, floss flower, lemon scented geraniums, lemon balm, lemongrass, lemon verbena, lemon eucalyptus, lemon thyme, Mexican marigold, nodding onion, pineapple weed, wormwood, pitcher plant, mint, snowbrush, sweet fern, tansy, stone root, tea tree, wild bergamot, and vanilla,

write those points which you think are suitable...

Answer 2

Here's the answer

I think Mosquitos come to your yard from the tree.

hope it works