Paucity of observations

I haven't been posting many observations this fall. There's not much worth observing, at least not in the plant world. Most species of fall-flowering plants have taken the year off, having received so little rain. The drought has also cut down on the numbers of other organisms. The McDowell Sonoran Conservancy's fall butterfly count was substantially lower this year than last. But in pursuit of observations for this desert mistletoe quick-quest, I photographed some drought-stressed individuals, and even found a flower. I also documented something I've been witnessing out my window, as the desert cottontails are resorting to nibbling the bark of palo verde trees to get them through the drought.

由使用者 stevejones stevejones2020年12月04日 23:24 所貼文

觀察

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 10:57 MST

描述

Host Larrea tridentata, an exception to the rule that desert mistletoe is only found in bean family trees and shrubs. I've seen it fairly often in creosote bushes, and have seen single instances of it in jojoba and tamarisk.

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 10:58 MST

描述

Host Parkinsonia microphylla; female with fruit

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:09 MST

描述

Host Parkinsonia microphylla

標籤

照片/聲音

什麼

巨柱仙人掌 (Carnegiea gigantea)

觀察者

stevejones

日期

12月 4, 2020 11:12 MST

描述

Skinny drought-struck saguaro; red color in the epidermis suggests drought stress as well.

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:13 MST

描述

Dead tree; note the lack of mistletoe in it. I suspect it was drought that took it out, but it could be other causes - borer beetles or an unknown pathogen.

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:14 MST

描述

Drought-stressed individual

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:17 MST

描述

Drought-stressed individual

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:18 MST

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:23 MST

描述

Drought-stressed individual

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:25 MST

描述

Host Senegalia greggii. Female plant.

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:27 MST

描述

Host Prosopis velutina

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:30 MST

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:31 MST

描述

No characters to ID it from at this stage, but known to be Euphorbia polycarpa.

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:32 MST

描述

Browsed by rabbits. Drought has left them resorting to bark of palos verdes.

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:33 MST

描述

No characters to ID it from at this stage, but known to be Euphorbia polycarpa.

標籤

照片/聲音

觀察者

stevejones

日期

12月 4, 2020 11:34 MST

標籤

評論

Very cool, you have to take your observations where and when you can get thm.

發佈由 gcsnelling 超過 3 年 前

新增評論

登入註冊 添加評論